Added Android Freeware

# Conflicts:
#	README.md
#	app/src/main/assets/Screenshot_9.jpg

README.md

@@ -1,23 +1,31 @@
+![App banner](media/banner.png)
+
 <div align="center">
-  <img src="app/src/main/assets/logo.png" alt="Calculator Hide File App Logo" width="200" />
 
 # 📂 Calculator Hide File App for Android 📂
 
 <a href="https://github.com/Binondi/Calculator-Hide-Files/releases/latest">
-      <img alt="Latest release" src="https://img.shields.io/badge/Releases-v1.0-blue?logo=github&style=for-the-badge">
+      <img alt="Latest release" src="https://img.shields.io/badge/Releases-v1.4.2-blue?logo=github&style=for-the-badge">
 </a>
 
 <a href="https://github.com/Binondi/Calculator-Hide-Files/releases/latest">
-      <img alt="Downloads" src="https://img.shields.io/badge/Downloads-1.3k-blue?logo=github&style=for-the-badge">
+  <img alt="Downloads" src="https://img.shields.io/badge/downloads-1.1k-blue?logo=github&style=for-the-badge">
 </a>
 
 <a href="LICENSE">
-      <img alt="Apache License 2.0" src="https://img.shields.io/badge/License-Apache_2.0-blue?logo=github&style=for-the-badge">
+  <img alt="Apache License 2.0" src="https://img.shields.io/badge/License-Apache_2.0-blue?logo=github&style=for-the-badge">
 </a>
 
-</div>
 
----
+<br>
+</div>
+<div align="center"> 
+         
+<h4>Download</h4>
+
+<a>[<img src="https://github.com/machiav3lli/oandbackupx/blob/034b226cea5c1b30eb4f6a6f313e4dadcbb0ece4/badge_github.png" alt="Get it on GitHub" height="80">](https://github.com/binondi/Calculator-Hide-Files/releases) </a><a href="https://apt.izzysoft.de/fdroid/index/apk/devs.org.calculator"><img src="https://gitlab.com/IzzyOnDroid/repo/-/raw/master/assets/IzzyOnDroid.png" height="80"></a> <a href="https://www.androidfreeware.net/download-apk-devs-org-calculator.html"><img src="https://www.androidfreeware.net/images/androidfreeware-badge.png" height="80"></a> 
+
+</div>
 
 ## 😍 Why Choose This App?  
 The **Calculator Hide File App** is an **open-source** application, allowing you to inspect the code yourself. This ensures **complete transparency** and guarantees that your **privacy remains uncompromised**. 🔒✅  
@@ -33,37 +41,37 @@ The **Calculator Hide File App** is an innovative **Android file-hiding app** th
 > - Hide images, videos, documents & other files securely.  
 > - Works like a **real calculator** with hidden storage mode.  
 > - No one will suspect it’s a file vault!  
-
+> - **Encrypt** files with your **custom key** to secure your hidden files.
 ---
 
 ## 🚀 Features
 
 ✅ **Dual Functionality** – A working **calculator** & a **file vault** in one app.  
 ✅ **Secret Passcode** – Unlock hidden files by entering a secret code.  
-✅ **Secure File Manager** – Hide/unhide files easily.  
+✅ **Secure File Manager** – Hide/Unhide files easily.  
 ✅ **Fast & Lightweight** – Smooth performance on all Android devices.  
 ✅ **No Root Required** – Works without rooting your phone.  
-
+✅ **Security** – Encrypt & Decrypt files.
 ---
 
 ## 🖼️ Screenshots
 
 <div align="center">
-  <img src="app/src/main/assets/Screenshot_1.jpg" alt="Calculator Hide File App - Home Screen" width="32%">
+  <img src="media/Screenshot_1.jpg" alt="Calculator Hide File App - Home Screen" width="32%">
-  <img src="app/src/main/assets/Screenshot_2.jpg" alt="Calculator Hide File App - Secure File Storage" width="32%">
+  <img src="media/Screenshot_2.jpg" alt="Calculator Hide File App - Secure File Storage" width="32%">
-  <img src="app/src/main/assets/Screenshot_3.jpg" alt="Calculator Hidle File App - Passcode Protection" width="32%">
+  <img src="media/Screenshot_3.jpg" alt="Calculator Hide File App - Passcode Protection" width="32%">
 </div>
 
 <div align="center">
-  <img src="app/src/main/assets/Screenshot_4.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
+  <img src="media/Screenshot_4.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
-  <img src="app/src/main/assets/Screenshot_5.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
+  <img src="media/Screenshot_5.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
-    <img src="app/src/main/assets/Screenshot_6.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
+    <img src="media/Screenshot_6.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
 </div>
 
 <div align="center">
-    <img src="app/src/main/assets/Screenshot_7.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
+    <img src="media/Screenshot_7.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
-    <img src="app/src/main/assets/Screenshot_8.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
+    <img src="media/Screenshot_8.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
-    <img src="app/src/main/assets/Screenshot_9.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
+    <img src="media/Screenshot_9.jpg" alt="Calculator Hide File App - Hidden Files Manager" width="32%">
 </div>
 
 ---
@@ -106,7 +114,7 @@ git clone https://github.com/Binondi/Calculator-Hide-Files.git
 ## 🛠️ Technologies Used
 
 - **Programming Language**: Kotlin
-- **UI Framework**: XML (For UI)
+- **UI Framework**: XML
 - **File Storage**: Secure internal storage & MediaStore API  
 
 ---
@@ -125,7 +133,12 @@ If you find this app useful, please consider supporting the development. 🙏
 
 [![Sponsor on GitHub](https://img.shields.io/badge/sponsor-30363D?style=for-the-badge&logo=GitHub-Sponsors&logoColor=#EA4AAA)](https://github.com/sponsors/Binondi)
 [![Donate via PayPal](https://img.shields.io/badge/PayPal-00457C?style=for-the-badge&logo=paypal&logoColor=white)](https://paypal.me/BinondiBorthakur56)
+[![Buy Me a Coffee](https://img.shields.io/badge/Buy%20Me%20a%20Coffee-FFDD00?style=for-the-badge&logo=buy-me-a-coffee&logoColor=black)](https://buymeacoffee.com/binondi)
 
+- **UPI ID** 📱
+``
+binondi@naviaxis
+``
 ---
 
 ## 🔧 Contributing

app/build.gradle.kts

@@ -11,9 +11,10 @@ android {
     defaultConfig {
         applicationId = "devs.org.calculator"
         minSdk = 26
+        //noinspection OldTargetApi
         targetSdk = 34
-        versionCode = 5
+        versionCode = 7
-        versionName = "1.4.0"
+        versionName = "1.4.2"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
@@ -81,9 +82,11 @@ dependencies {
     implementation(libs.androidx.viewpager)
     implementation(libs.zoomage)
     implementation(libs.lottie)
+    implementation(libs.androidx.swiperefreshlayout)
 
     // Room dependencies
     implementation(libs.androidx.room.runtime)
     implementation(libs.androidx.room.ktx)
+    //noinspection KaptUsageInsteadOfKsp
     kapt(libs.androidx.room.compiler)
 }

app/release/output-metadata.json

@@ -11,8 +11,8 @@
       "type": "SINGLE",
       "filters": [],
       "attributes": [],
-      "versionCode": 4,
+      "versionCode": 6,
-      "versionName": "1.3",
+      "versionName": "1.4.1",
       "outputFile": "app-release.apk"
     }
   ],

app/src/main/java/devs/org/calculator/activities/HiddenActivity.kt

@@ -11,7 +11,10 @@ import android.view.WindowManager
 import android.widget.EditText
 import android.widget.Toast
 import androidx.activity.OnBackPressedCallback
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
 import androidx.recyclerview.widget.GridLayoutManager
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import devs.org.calculator.R
@@ -47,7 +50,12 @@ class HiddenActivity : AppCompatActivity() {
         fileManager = FileManager(this, this)
         folderManager = FolderManager()
         dialogUtil = DialogUtil(this)
-
+        enableEdgeToEdge()
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
 
         setupInitialUIState()
         setupClickListeners()

app/src/main/java/devs/org/calculator/activities/MainActivity.kt

@@ -24,6 +24,10 @@ import devs.org.calculator.utils.PrefsUtil
 import net.objecthunter.exp4j.ExpressionBuilder
 import java.util.regex.Pattern
 import androidx.core.content.edit
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import devs.org.calculator.utils.StoragePermissionUtil
 
 class MainActivity : AppCompatActivity(), DialogActionsCallback, DialogUtil.DialogCallback {
     private lateinit var binding: ActivityMainBinding
@@ -36,6 +40,8 @@ class MainActivity : AppCompatActivity(), DialogActionsCallback, DialogUtil.Dial
     private val dialogUtil = DialogUtil(this)
     private val fileManager = FileManager(this, this)
     private val sp by lazy { getSharedPreferences("app", MODE_PRIVATE) }
+    private lateinit var storagePermissionUtil: StoragePermissionUtil
+    private lateinit var permissionLauncher: ActivityResultLauncher<Array<String>>
 
     @RequiresApi(Build.VERSION_CODES.R)
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -43,15 +49,30 @@ class MainActivity : AppCompatActivity(), DialogActionsCallback, DialogUtil.Dial
         binding = ActivityMainBinding.inflate(layoutInflater)
         setContentView(binding.root)
         enableEdgeToEdge()
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, 0, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        permissionLauncher = registerForActivityResult(
+            ActivityResultContracts.RequestMultiplePermissions()
+        ) { permissions ->
+            storagePermissionUtil.handlePermissionResult(permissions)
+        }
+
+        // Initialize StoragePermissionUtil
+        storagePermissionUtil = StoragePermissionUtil(this)
+
         launcher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
             handleActivityResult(result)
         }
-
         if (sp.getBoolean("isFirst", true)){
             binding.display.text = getString(R.string.enter_123456)
         }
 
-        if(!Environment.isExternalStorageManager()) {
+
+        if (!storagePermissionUtil.hasStoragePermission()) {
             dialogUtil.showMaterialDialog(
                 getString(R.string.storage_permission),
                 getString(R.string.to_ensure_the_app_works_properly_and_allows_you_to_easily_hide_or_un_hide_your_private_files_please_grant_storage_access_permission) +
@@ -61,7 +82,10 @@ class MainActivity : AppCompatActivity(), DialogActionsCallback, DialogUtil.Dial
                 getString(R.string.later),
                 object : DialogUtil.DialogCallback {
                     override fun onPositiveButtonClicked() {
-                        fileManager.askPermission(this@MainActivity)
+                        storagePermissionUtil.requestStoragePermission(permissionLauncher) {
+                            Toast.makeText(this@MainActivity, getString(R.string.permission_granted), Toast.LENGTH_SHORT).show()
+                        }
+
                     }
 
                     override fun onNegativeButtonClicked() {
@@ -75,9 +99,11 @@ class MainActivity : AppCompatActivity(), DialogActionsCallback, DialogUtil.Dial
                             getString(R.string.you_can_grant_permission_later_from_settings),
                             Toast.LENGTH_LONG).show()
                     }
-                }
+                })
-            )
         }
+
+
+
         setupNumberButton(binding.btn0, "0")
         setupNumberButton(binding.btn00, "00")
         setupNumberButton(binding.btn1, "1")
@@ -150,7 +176,7 @@ class MainActivity : AppCompatActivity(), DialogActionsCallback, DialogUtil.Dial
     }
 
     private fun clearDisplay() {
-        currentExpression = ""
+        currentExpression = "0"
         binding.total.text = ""
         lastWasOperator = false
         lastWasPercent = false
@@ -335,13 +361,17 @@ class MainActivity : AppCompatActivity(), DialogActionsCallback, DialogUtil.Dial
         }
 
         try {
-            if (currentExpression.isEmpty() ||
+            if (currentExpression.isEmpty()) {
-                (isOperator(currentExpression.last().toString()) && currentExpression.last() != '%')) {
                 binding.total.text = ""
                 return
             }
+
             var processedExpression = currentExpression.replace("×", "*")
 
+            if (isOperator(processedExpression.last().toString())) {
+                processedExpression = processedExpression.substring(0, processedExpression.length - 1)
+            }
+
             if (processedExpression.contains("%")) {
                 processedExpression = preprocessExpression(processedExpression)
             }

app/src/main/java/devs/org/calculator/activities/PreviewActivity.kt

@@ -6,7 +6,10 @@ import android.os.Handler
 import android.os.Looper
 import android.view.WindowManager
 import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
 import androidx.lifecycle.lifecycleScope
 import androidx.viewpager2.widget.ViewPager2
 import devs.org.calculator.R
@@ -42,7 +45,12 @@ class PreviewActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         binding = ActivityPreviewBinding.inflate(layoutInflater)
         setContentView(binding.root)
-
+        enableEdgeToEdge()
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
         fileManager = FileManager(this, this)
 
         currentPosition = intent.getIntExtra("position", 0)

app/src/main/java/devs/org/calculator/activities/SettingsActivity.kt

@@ -6,9 +6,12 @@ import android.view.View
 import android.view.WindowManager
 import android.widget.EditText
 import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.net.toUri
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
 import com.google.android.material.color.DynamicColors
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.snackbar.Snackbar
@@ -29,6 +32,12 @@ class SettingsActivity : AppCompatActivity() {
         binding = ActivitySettingsBinding.inflate(layoutInflater)
         setContentView(binding.root)
         prefs = PrefsUtil(this)
+        enableEdgeToEdge()
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
         DEV_GITHUB_URL = getString(R.string.github_profile)
         GITHUB_URL = getString(R.string.calculator_hide_files, DEV_GITHUB_URL)
         setupUI()

app/src/main/java/devs/org/calculator/activities/SetupPasswordActivity.kt

@@ -5,7 +5,10 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.widget.TextView
 import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
 import com.google.android.material.color.DynamicColors
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.textfield.TextInputEditText
@@ -26,7 +29,12 @@ class SetupPasswordActivity : AppCompatActivity() {
         binding = ActivitySetupPasswordBinding.inflate(layoutInflater)
         binding2 = ActivityChangePasswordBinding.inflate(layoutInflater)
         setContentView(binding.root)
-
+        enableEdgeToEdge()
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
         prefsUtil = PrefsUtil(this)
         hasPassword = prefsUtil.hasPassword()
 

app/src/main/java/devs/org/calculator/activities/ViewFolderActivity.kt

@@ -7,7 +7,6 @@ import android.os.Bundle
 import android.os.Environment
 import android.os.Handler
 import android.os.Looper
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.animation.Animation
@@ -23,7 +22,6 @@ import androidx.recyclerview.widget.RecyclerView
 import com.google.android.material.bottomsheet.BottomSheetDialog
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import devs.org.calculator.R
-import devs.org.calculator.adapters.FileAdapter
 import devs.org.calculator.adapters.FolderSelectionAdapter
 import devs.org.calculator.callbacks.FileProcessCallback
 import devs.org.calculator.database.HiddenFileEntity
@@ -41,6 +39,11 @@ import java.io.File
 import android.widget.CheckBox
 import android.widget.CompoundButton
 import android.app.AlertDialog
+import android.view.WindowManager
+import androidx.activity.enableEdgeToEdge
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import devs.org.calculator.adapters.FileAdapter
 
 class ViewFolderActivity : AppCompatActivity() {
 
@@ -71,6 +74,12 @@ class ViewFolderActivity : AppCompatActivity() {
 
         binding = ActivityViewFolderBinding.inflate(layoutInflater)
         setContentView(binding.root)
+        enableEdgeToEdge()
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
         setupAnimations()
         initialize()
         setupClickListeners()
@@ -142,16 +151,19 @@ class ViewFolderActivity : AppCompatActivity() {
                 customDialog?.dismiss()
                 customDialog = null
                 updateFilesToAdapter()
+                refreshCurrentFolder()
             }, remainingTime)
         } else {
             customDialog?.dismiss()
             customDialog = null
+            refreshCurrentFolder()
             updateFilesToAdapter()
         }
     }
 
     private fun updateFilesToAdapter() {
-        openFolder(currentFolder!!)
+        val files = folderManager.getFilesInFolder(currentFolder!!)
+        fileAdapter?.submitList(files)
     }
 
 
@@ -199,6 +211,16 @@ class ViewFolderActivity : AppCompatActivity() {
 
                                 mainHandler.postDelayed({
                                     dismissCustomDialog()
+                                    val files = folderManager.getFilesInFolder(targetFolder)
+                                    if (files.isNotEmpty()) {
+                                        binding.swipeLayout.visibility = View.VISIBLE
+                                        binding.noItems.visibility = View.GONE
+                                        if (fileAdapter == null) {
+                                            showFileList(files, targetFolder)
+                                        } else {
+                                            fileAdapter?.submitList(files.toMutableList())
+                                        }
+                                    }
                                 }, 1000)
                             }
                         }
@@ -223,6 +245,7 @@ class ViewFolderActivity : AppCompatActivity() {
                     ).show()
                     dismissCustomDialog()
                 }
+                e.printStackTrace()
             }
         }
     }
@@ -230,9 +253,19 @@ class ViewFolderActivity : AppCompatActivity() {
     override fun onResume() {
         super.onResume()
         refreshCurrentFolder()
+        setupFlagSecure()
     }
 
-    private fun openFolder(folder: File) {
+    private fun setupFlagSecure() {
+        if (prefs.getBoolean("screenshot_restriction", true)) {
+            window.setFlags(
+                WindowManager.LayoutParams.FLAG_SECURE,
+                WindowManager.LayoutParams.FLAG_SECURE
+            )
+        }
+    }
+
+    fun openFolder(folder: File) {
         if (!folder.exists()) {
             folder.mkdirs()
             File(folder, ".nomedia").createNewFile()
@@ -246,11 +279,12 @@ class ViewFolderActivity : AppCompatActivity() {
         } else {
             showEmptyState()
         }
+        binding.swipeLayout.isRefreshing = false
     }
 
     private fun showEmptyState() {
         binding.noItems.visibility = View.VISIBLE
-        binding.recyclerView.visibility = View.GONE
+        binding.swipeLayout.visibility = View.GONE
     }
 
     private fun showFileList(files: List<File>, folder: File) {
@@ -261,17 +295,20 @@ class ViewFolderActivity : AppCompatActivity() {
             onFolderLongClick = { isSelected ->
                 handleFileSelectionModeChange(isSelected)
             }).apply {
-            setFileOperationCallback(object : FileAdapter.FileOperationCallback {
+            setFilesOperationCallback(object : FileAdapter.FilesOperationCallback {
                 override fun onFileDeleted(file: File) {
                     refreshCurrentFolder()
+                    updateFilesToAdapter()
                 }
 
                 override fun onFileRenamed(oldFile: File, newFile: File) {
                     refreshCurrentFolder()
+                    updateFilesToAdapter()
                 }
 
                 override fun onRefreshNeeded() {
                     refreshCurrentFolder()
+                    updateFilesToAdapter()
                 }
 
                 override fun onSelectionModeChanged(isSelectionMode: Boolean, selectedCount: Int) {
@@ -287,7 +324,7 @@ class ViewFolderActivity : AppCompatActivity() {
         }
 
         binding.recyclerView.adapter = fileAdapter
-        binding.recyclerView.visibility = View.VISIBLE
+        binding.swipeLayout.visibility = View.VISIBLE
         binding.noItems.visibility = View.GONE
 
         binding.menuButton.setOnClickListener {
@@ -381,10 +418,10 @@ class ViewFolderActivity : AppCompatActivity() {
                                 getString(R.string.decrypt_file) -> {
                                     lifecycleScope.launch {
                                         val filesWithoutMetadata = selectedFiles.filter { file ->
-                                            file.name.endsWith(ENCRYPTED_EXTENSION) && 
+                                            file.name.endsWith(ENCRYPTED_EXTENSION) &&
                                             fileAdapter?.hiddenFileRepository?.getHiddenFileByPath(file.absolutePath)?.isEncrypted != true
                                         }
-                                        
+
                                         if (filesWithoutMetadata.isNotEmpty()) {
                                             showDecryptionTypeDialog(filesWithoutMetadata)
                                         } else {
@@ -455,21 +492,18 @@ class ViewFolderActivity : AppCompatActivity() {
         lifecycleScope.launch {
             var successCount = 0
             var failCount = 0
+            val decryptedFiles = mutableMapOf<File, File>()
 
             for (file in selectedFiles) {
                 try {
                     val hiddenFile = fileAdapter?.hiddenFileRepository?.getHiddenFileByPath(file.absolutePath)
 
-                    
                     if (hiddenFile?.isEncrypted == true) {
-
                         val originalExtension = hiddenFile.originalExtension
                         val decryptedFile = SecurityUtils.changeFileExtension(file, originalExtension)
 
-                        
                         if (SecurityUtils.decryptFile(this@ViewFolderActivity, file, decryptedFile)) {
                             if (decryptedFile.exists() && decryptedFile.length() > 0) {
-
                                 hiddenFile.let {
                                     fileAdapter?.hiddenFileRepository?.updateEncryptionStatus(
                                         filePath = file.absolutePath,
@@ -479,27 +513,23 @@ class ViewFolderActivity : AppCompatActivity() {
                                     )
                                 }
                                 if (file.delete()) {
-
+                                    decryptedFiles[file] = decryptedFile
                                     successCount++
                                 } else {
-
                                     decryptedFile.delete()
                                     failCount++
                                 }
                             } else {
-
                                 decryptedFile.delete()
                                 failCount++
                             }
                         } else {
-
                             if (decryptedFile.exists()) {
                                 decryptedFile.delete()
                             }
                             failCount++
                         }
                     } else if (file.name.endsWith(ENCRYPTED_EXTENSION) && hiddenFile == null) {
-
                         val extension = when (fileType) {
                             FileManager.FileType.IMAGE -> ".jpg"
                             FileManager.FileType.VIDEO -> ".mp4"
@@ -509,11 +539,8 @@ class ViewFolderActivity : AppCompatActivity() {
                         
                         val decryptedFile = SecurityUtils.changeFileExtension(file, extension)
 
-                        
                         if (SecurityUtils.decryptFile(this@ViewFolderActivity, file, decryptedFile)) {
                             if (decryptedFile.exists() && decryptedFile.length() > 0) {
-
-
                                 fileAdapter?.hiddenFileRepository?.insertHiddenFile(
                                     HiddenFileEntity(
                                         filePath = decryptedFile.absolutePath,
@@ -525,37 +552,32 @@ class ViewFolderActivity : AppCompatActivity() {
                                     )
                                 )
                                 if (file.delete()) {
-
+                                    decryptedFiles[file] = decryptedFile
                                     successCount++
                                 } else {
-
                                     decryptedFile.delete()
                                     failCount++
                                 }
                             } else {
-
                                 decryptedFile.delete()
                                 failCount++
                             }
                         } else {
-
                             if (decryptedFile.exists()) {
                                 decryptedFile.delete()
                             }
                             failCount++
                         }
                     } else {
-
                         failCount++
                     }
                 } catch (e: Exception) {
-
                     failCount++
+                    e.printStackTrace()
                 }
             }
 
             mainHandler.post {
-                fileAdapter?.exitSelectionMode()
                 when {
                     successCount > 0 && failCount == 0 -> {
                         Toast.makeText(this@ViewFolderActivity, "Decrypted $successCount file(s)", Toast.LENGTH_SHORT).show()
@@ -567,7 +589,10 @@ class ViewFolderActivity : AppCompatActivity() {
                         Toast.makeText(this@ViewFolderActivity, "Failed to decrypt $failCount file(s)", Toast.LENGTH_SHORT).show()
                     }
                 }
-                refreshCurrentFolder()
+                if (successCount > 0) {
+                    refreshCurrentFolder()
+                    fileAdapter?.exitSelectionMode()
+                }
             }
         }
     }
@@ -627,10 +652,19 @@ class ViewFolderActivity : AppCompatActivity() {
                     val files = folderManager.getFilesInFolder(folder)
                     mainHandler.post {
                         if (files.isNotEmpty()) {
-                            binding.recyclerView.visibility = View.VISIBLE
+                            binding.swipeLayout.visibility = View.VISIBLE
                             binding.noItems.visibility = View.GONE
 
-                            fileAdapter?.submitList(files.toMutableList())
+                            val currentFiles = fileAdapter?.currentList ?: emptyList()
+                            val hasChanges = files.size != currentFiles.size || 
+                                files.any { newFile -> 
+                                    currentFiles.none { it.absolutePath == newFile.absolutePath }
+                                }
+
+                            if (hasChanges) {
+                                fileAdapter?.submitList(files.toMutableList())
+                            }
+
                             fileAdapter?.let { adapter ->
                                 if (adapter.isInSelectionMode()) {
                                     showFileSelectionIcons()
@@ -642,8 +676,7 @@ class ViewFolderActivity : AppCompatActivity() {
                             showEmptyState()
                         }
                     }
-                } catch (e: Exception) {
+                } catch (_: Exception) {
-
                     mainHandler.post {
                         showEmptyState()
                     }
@@ -659,6 +692,9 @@ class ViewFolderActivity : AppCompatActivity() {
         binding.back.setOnClickListener {
             finish()
         }
+        binding.swipeLayout.setOnRefreshListener {
+            openFolder(currentFolder!!)
+        }
 
         binding.addImage.setOnClickListener { openFilePicker("image/*") }
         binding.addVideo.setOnClickListener { openFilePicker("video/*") }
@@ -748,6 +784,7 @@ class ViewFolderActivity : AppCompatActivity() {
     private fun performFileUnhiding(selectedFiles: List<File>) {
         lifecycleScope.launch {
             var allUnhidden = true
+            val unhiddenFiles = mutableListOf<File>()
             selectedFiles.forEach { file ->
                 try {
                     val hiddenFile = fileAdapter?.hiddenFileRepository?.getHiddenFileByPath(file.absolutePath)
@@ -767,6 +804,7 @@ class ViewFolderActivity : AppCompatActivity() {
                                         }
                                         file.delete()
                                         decryptedFile.delete()
+                                        unhiddenFiles.add(file)
                                     } else {
                                         decryptedFile.delete()
                                         allUnhidden = false
@@ -794,6 +832,7 @@ class ViewFolderActivity : AppCompatActivity() {
                                     fileAdapter?.hiddenFileRepository?.deleteHiddenFile(it)
                                 }
                                 file.delete()
+                                unhiddenFiles.add(file)
                             } else {
                                 allUnhidden = false
                             }
@@ -802,8 +841,8 @@ class ViewFolderActivity : AppCompatActivity() {
                         }
                     }
                 } catch (e: Exception) {
-
                     allUnhidden = false
+                    e.printStackTrace()
                 }
             }
 
@@ -815,8 +854,8 @@ class ViewFolderActivity : AppCompatActivity() {
                 }
 
                 Toast.makeText(this@ViewFolderActivity, message, Toast.LENGTH_SHORT).show()
-                fileAdapter?.exitSelectionMode()
                 refreshCurrentFolder()
+                fileAdapter?.exitSelectionMode()
             }
         }
     }
@@ -824,17 +863,19 @@ class ViewFolderActivity : AppCompatActivity() {
     private fun performFileDeletion(selectedFiles: List<File>) {
         lifecycleScope.launch {
             var allDeleted = true
+            val deletedFiles = mutableListOf<File>()
             selectedFiles.forEach { file ->
                 try {
                     val hiddenFile = fileAdapter?.hiddenFileRepository?.getHiddenFileByPath(file.absolutePath)
                     hiddenFile?.let {
                         fileAdapter?.hiddenFileRepository?.deleteHiddenFile(it)
                     }
-                    if (!file.delete()) {
+                    if (file.delete()) {
+                        deletedFiles.add(file)
+                    } else {
                         allDeleted = false
                     }
-                } catch (e: Exception) {
+                } catch (_: Exception) {
-
                     allDeleted = false
                 }
             }
@@ -847,8 +888,8 @@ class ViewFolderActivity : AppCompatActivity() {
                 }
 
                 Toast.makeText(this@ViewFolderActivity, message, Toast.LENGTH_SHORT).show()
-                fileAdapter?.exitSelectionMode()
                 refreshCurrentFolder()
+                fileAdapter?.exitSelectionMode()
             }
         }
     }
@@ -862,6 +903,7 @@ class ViewFolderActivity : AppCompatActivity() {
     private fun copyFilesToFolder(selectedFiles: List<File>, destinationFolder: File) {
         lifecycleScope.launch {
             var allCopied = true
+            val copiedFiles = mutableListOf<File>()
             selectedFiles.forEach { file ->
                 try {
                     val newFile = File(destinationFolder, file.name)
@@ -880,17 +922,18 @@ class ViewFolderActivity : AppCompatActivity() {
                             )
                         )
                     }
+                    copiedFiles.add(file)
                 } catch (e: Exception) {
-
                     allCopied = false
+                    e.printStackTrace()
                 }
             }
 
             mainHandler.post {
                 val message = if (allCopied) getString(R.string.files_copied_successfully) else getString(R.string.some_files_could_not_be_copied)
                 Toast.makeText(this@ViewFolderActivity, message, Toast.LENGTH_SHORT).show()
-                fileAdapter?.exitSelectionMode()
                 refreshCurrentFolder()
+                fileAdapter?.exitSelectionMode()
             }
         }
     }
@@ -898,6 +941,7 @@ class ViewFolderActivity : AppCompatActivity() {
     private fun moveFilesToFolder(selectedFiles: List<File>, destinationFolder: File) {
         lifecycleScope.launch {
             var allMoved = true
+            val movedFiles = mutableListOf<File>()
             selectedFiles.forEach { file ->
                 try {
                     val newFile = File(destinationFolder, file.name)
@@ -913,22 +957,27 @@ class ViewFolderActivity : AppCompatActivity() {
                         )
                     }
                     
-                    file.delete()
+                    if (file.delete()) {
+                        movedFiles.add(file)
+                    } else {
+                        allMoved = false
+                    }
                 } catch (e: Exception) {
-
                     allMoved = false
+                    e.printStackTrace()
                 }
             }
 
             mainHandler.post {
                 val message = if (allMoved) getString(R.string.files_moved_successfully) else getString(R.string.some_files_could_not_be_moved)
                 Toast.makeText(this@ViewFolderActivity, message, Toast.LENGTH_SHORT).show()
-                fileAdapter?.exitSelectionMode()
                 refreshCurrentFolder()
+                fileAdapter?.exitSelectionMode()
             }
         }
     }
 
+    @SuppressLint("InflateParams")
     private fun showFolderSelectionDialog(onFolderSelected: (File) -> Unit) {
         val folders = folderManager.getFoldersInDirectory(hiddenDir)
             .filter { it != currentFolder }

app/src/main/java/devs/org/calculator/adapters/FileAdapter.kt

@@ -9,9 +9,6 @@ import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.EditText
-import android.widget.ImageView
-import android.widget.TextView
 import android.widget.Toast
 import androidx.core.content.FileProvider
 import androidx.lifecycle.LifecycleOwner
@@ -26,7 +23,9 @@ import devs.org.calculator.activities.PreviewActivity
 import devs.org.calculator.database.AppDatabase
 import devs.org.calculator.database.HiddenFileEntity
 import devs.org.calculator.database.HiddenFileRepository
+import devs.org.calculator.databinding.ListItemFileBinding
 import devs.org.calculator.utils.FileManager
+import devs.org.calculator.utils.FolderManager
 import devs.org.calculator.utils.SecurityUtils
 import devs.org.calculator.utils.SecurityUtils.getDecryptedPreviewFile
 import devs.org.calculator.utils.SecurityUtils.getUriForPreviewFile
@@ -40,22 +39,18 @@ class FileAdapter(
     private val lifecycleOwner: LifecycleOwner,
     private val currentFolder: File,
     private val showFileName: Boolean,
-    private val onFolderLongClick: (Boolean) -> Unit
+    private val onFolderLongClick: (Boolean) -> Unit,
-) : ListAdapter<File, FileAdapter.FileViewHolder>(FileDiffCallback()) {
+) : ListAdapter<File, FileAdapter.FilesViewHolder>(FileDiffCallback()) {
 
+
+    private var filesOperationCallback: WeakReference<FilesOperationCallback>? = null
     private val selectedItems = mutableSetOf<Int>()
     private var isSelectionMode = false
-
-    private var fileOperationCallback: WeakReference<FileOperationCallback>? = null
-
     private val fileExecutor = Executors.newSingleThreadExecutor()
     private val mainHandler = Handler(Looper.getMainLooper())
 
-    val hiddenFileRepository: HiddenFileRepository by lazy {
-        HiddenFileRepository(AppDatabase.getDatabase(context).hiddenFileDao())
-    }
 
-    interface FileOperationCallback {
+    interface FilesOperationCallback {
         fun onFileDeleted(file: File)
         fun onFileRenamed(oldFile: File, newFile: File)
         fun onRefreshNeeded()
@@ -63,197 +58,77 @@ class FileAdapter(
         fun onSelectionCountChanged(selectedCount: Int)
     }
 
-    fun setFileOperationCallback(callback: FileOperationCallback?) {
+    fun setFilesOperationCallback(callback: FilesOperationCallback?) {
-        fileOperationCallback = callback?.let { WeakReference(it) }
+        filesOperationCallback = callback?.let { WeakReference(it) }
     }
 
-    inner class FileViewHolder(view: View) : RecyclerView.ViewHolder(view) {
+    val hiddenFileRepository: HiddenFileRepository by lazy {
-        val imageView: ImageView = view.findViewById(R.id.fileIconImageView)
+        HiddenFileRepository(AppDatabase.getDatabase(context).hiddenFileDao())
-        val fileNameTextView: TextView = view.findViewById(R.id.fileNameTextView)
+    }
-        val playIcon: ImageView = view.findViewById(R.id.videoPlay)
-        val selectedLayer: View = view.findViewById(R.id.selectedLayer)
-        val shade: View = view.findViewById(R.id.shade)
-        val selected: ImageView = view.findViewById(R.id.selected)
-        val encryptedIcon: ImageView = view.findViewById(R.id.encrypted)
 
+
+    override fun onCreateViewHolder(
+        parent: ViewGroup,
+        viewType: Int,
+    ): FilesViewHolder {
+        val binding =
+            ListItemFileBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+        return FilesViewHolder(binding)
+    }
+
+    override fun onBindViewHolder(
+        holder: FilesViewHolder,
+        position: Int,
+    ) {
+        holder.bind(getItem(position))
+
+    }
+
+
+    inner class FilesViewHolder(private val binding: ListItemFileBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+        @SuppressLint("FileEndsWithExt")
         fun bind(file: File) {
+            val position = adapterPosition
             lifecycleOwner.lifecycleScope.launch {
                 try {
-                    val hiddenFile = hiddenFileRepository.getHiddenFileByPath(file.absolutePath)
+                    hiddenFileRepository.getHiddenFileByPath(file.absolutePath)
-                    val fileType = if (hiddenFile?.fileType != null) hiddenFile.fileType
+                    val currentFileData =
-                    else {
+                        hiddenFileRepository.getHiddenFileByPath(file.absolutePath)
-                        FileManager(context, lifecycleOwner).getFileType(file)
+                    val currentFileType = currentFileData?.fileType ?: FileManager(
-                    }
+                        context,
-                    
+                        lifecycleOwner
-                    setupFileDisplay(file, fileType, hiddenFile?.isEncrypted == true,hiddenFile)
+                    ).getFileType(file)
-                    setupClickListeners(file, fileType)
+
-                    fileNameTextView.visibility = if (showFileName) View.VISIBLE else View.GONE
+
-                    shade.visibility = if (showFileName) View.VISIBLE else View.GONE
+                    val isCurrentFileEncrypted = currentFileData?.isEncrypted ?: file.endsWith(
+                        SecurityUtils.ENCRYPTED_EXTENSION
+                    )
+
+                    setupClickListeners(file, currentFileType)
+                    setupDisplay(
+                        file,
+                        currentFileType,
+                        isCurrentFileEncrypted,
+                        currentFileData
+                    )
+                    binding.fileNameTextView.text = if (isCurrentFileEncrypted) currentFileData?.fileName else file.name
+                    binding.fileNameTextView.visibility =
+                        if (showFileName) View.VISIBLE else View.GONE
+                    binding.shade.visibility = if (showFileName) View.VISIBLE else View.GONE
 
-                    val position = adapterPosition
                     if (position != RecyclerView.NO_POSITION) {
                         val isSelected = selectedItems.contains(position)
                         updateSelectionUI(isSelected)
                     }
-                    encryptedIcon.visibility = if (hiddenFile?.isEncrypted == true) View.VISIBLE else View.GONE
+                    binding.encrypted.visibility =
+                        if (isCurrentFileEncrypted) View.VISIBLE else View.GONE
                 } catch (e: Exception) {
+                    Log.e("FileAdapter", "Error in bind: ${e.message}")
                 }
             }
         }
 
-
-        fun bind(file: File, payloads: List<Any>) {
-            if (payloads.isEmpty()) {
-                bind(file)
-                return
-            }
-
-            val changes = payloads.firstOrNull() as? List<String>
-            changes?.forEach { change ->
-                when (change) {
-                    "NAME_CHANGED" -> {
-                        fileNameTextView.text = file.name
-                    }
-                    "SIZE_CHANGED", "MODIFIED_DATE_CHANGED" -> {
-
-                    }
-                    "SELECTION_CHANGED" -> {
-                        val position = adapterPosition
-                        if (position != RecyclerView.NO_POSITION) {
-                            val isSelected = selectedItems.contains(position)
-                            updateSelectionUI(isSelected)
-                            notifySelectionModeChange()
-                        }
-                    }
-                }
-            }
-        }
-
-        private fun updateSelectionUI(isSelected: Boolean) {
-            selectedLayer.visibility = if (isSelected) View.VISIBLE else View.GONE
-            selected.visibility = if (isSelected) View.VISIBLE else View.GONE
-        }
-
-        private fun setupFileDisplay(file: File, fileType: FileManager.FileType, isEncrypted: Boolean, metadata: HiddenFileEntity?) {
-            fileNameTextView.text = metadata?.fileName ?: file.name
-
-            when (fileType) {
-                FileManager.FileType.IMAGE -> {
-                    playIcon.visibility = View.GONE
-                    if (isEncrypted) {
-                        try {
-                            val decryptedFile = getDecryptedPreviewFile(context, metadata!!)
-                            if (decryptedFile != null && decryptedFile.exists() && decryptedFile.length() > 0) {
-                                val uri = getUriForPreviewFile(context, decryptedFile)
-                                if (uri != null) {
-                                    Glide.with(context)
-                                        .load(uri)
-                                        .centerCrop()
-                                        .diskCacheStrategy(DiskCacheStrategy.NONE)
-                                        .skipMemoryCache(true)
-                                        .error(R.drawable.encrypted)
-                                        .into(imageView)
-                                    imageView.setPadding(0, 0, 0, 0)
-                                } else {
-                                    showEncryptedIcon()
-                                }
-                            } else {
-                                showEncryptedIcon()
-                            }
-                        } catch (e: Exception) {
-                            showEncryptedIcon()
-                        }
-                    } else {
-                        Glide.with(context)
-                            .load(file)
-                            .centerCrop()
-                            .diskCacheStrategy(DiskCacheStrategy.NONE)
-                            .skipMemoryCache(true)
-                            .error(R.drawable.ic_image)
-                            .into(imageView)
-                        imageView.setPadding(0, 0, 0, 0)
-                    }
-                }
-                FileManager.FileType.VIDEO -> {
-                    playIcon.visibility = View.VISIBLE
-                    if (isEncrypted) {
-                        try {
-                            val decryptedFile = getDecryptedPreviewFile(context, metadata!!)
-                            if (decryptedFile != null && decryptedFile.exists() && decryptedFile.length() > 0) {
-                                val uri = getUriForPreviewFile(context, decryptedFile)
-                                if (uri != null) {
-                                    Glide.with(context)
-                                        .load(uri)
-                                        .centerCrop()
-                                        .diskCacheStrategy(DiskCacheStrategy.NONE)
-                                        .skipMemoryCache(true)
-                                        .error(R.drawable.encrypted)
-                                        .into(imageView)
-                                    imageView.setPadding(0, 0, 0, 0)
-                                } else {
-                                    showEncryptedIcon()
-                                }
-                            } else {
-                                showEncryptedIcon()
-                            }
-                        } catch (e: Exception) {
-                            showEncryptedIcon()
-                        }
-                    } else {
-                        Glide.with(context)
-                            .load(file)
-                            .centerCrop()
-                            .diskCacheStrategy(DiskCacheStrategy.NONE)
-                            .skipMemoryCache(true)
-                            .error(R.drawable.ic_video)
-                            .into(imageView)
-                    }
-                }
-                FileManager.FileType.AUDIO -> {
-                    playIcon.visibility = View.GONE
-                    if (isEncrypted) {
-                        imageView.setImageResource(R.drawable.encrypted)
-                    } else {
-                        imageView.setImageResource(R.drawable.ic_audio)
-                    }
-                    imageView.setPadding(50, 50, 50, 50)
-                }
-                else -> {
-                    playIcon.visibility = View.GONE
-                    if (isEncrypted) {
-                        imageView.setImageResource(R.drawable.encrypted)
-                    } else {
-                        imageView.setImageResource(R.drawable.ic_document)
-                    }
-                    imageView.setPadding(50, 50, 50, 50)
-                }
-            }
-        }
-
-        private fun setupClickListeners(file: File, fileType: FileManager.FileType) {
-            itemView.setOnClickListener {
-                val position = adapterPosition
-                if (position == RecyclerView.NO_POSITION) return@setOnClickListener
-
-                if (isSelectionMode) {
-                    toggleSelection(position)
-                } else {
-                    openFile(file, fileType)
-                }
-            }
-
-            itemView.setOnLongClickListener {
-                val position = adapterPosition
-                if (position == RecyclerView.NO_POSITION) return@setOnLongClickListener false
-
-                if (!isSelectionMode) {
-                    enterSelectionMode()
-                    toggleSelection(position)
-                }
-                true
-            }
-        }
-
         private fun openFile(file: File, fileType: FileManager.FileType) {
             if (!file.exists()) {
                 Toast.makeText(context,
@@ -272,7 +147,7 @@ class FileAdapter(
                                     showDecryptionTypeDialog(file)
                                 } else {
                                     val tempFile = File(context.cacheDir, "preview_${file.name}")
-                                    
+
                                     if (SecurityUtils.decryptFile(context, file, tempFile)) {
                                         if (tempFile.exists() && tempFile.length() > 0) {
                                             mainHandler.post {
@@ -305,7 +180,7 @@ class FileAdapter(
                             } else {
                                 openInPreview(fileType)
                             }
-                        } catch (e: Exception) {
+                        } catch (_: Exception) {
                             mainHandler.post {
                                 Toast.makeText(context, "Error preparing file for preview", Toast.LENGTH_SHORT).show()
                             }
@@ -317,6 +192,39 @@ class FileAdapter(
             }
         }
 
+        private fun showDecryptionTypeDialog(file: File) {
+            val options = arrayOf("Image", "Video", "Audio")
+            MaterialAlertDialogBuilder(context)
+                .setTitle("Select File Type")
+                .setMessage("Please select the type of file to decrypt")
+                .setItems(options) { _, which ->
+                    val selectedType = when (which) {
+                        0 -> FileManager.FileType.IMAGE
+                        1 -> FileManager.FileType.VIDEO
+                        2 -> FileManager.FileType.AUDIO
+                        else -> FileManager.FileType.DOCUMENT
+                    }
+                    performDecryptionWithType(file, selectedType)
+                }
+                .setNegativeButton("Cancel", null)
+                .show()
+        }
+
+        private fun openInPreview(fileType: FileManager.FileType) {
+            val fileTypeString = when (fileType) {
+                FileManager.FileType.IMAGE -> context.getString(R.string.image)
+                FileManager.FileType.VIDEO -> context.getString(R.string.video)
+                else -> "unknown"
+            }
+
+            val intent = Intent(context, PreviewActivity::class.java).apply {
+                putExtra("type", fileTypeString)
+                putExtra("folder", currentFolder.toString())
+                putExtra("position", adapterPosition)
+            }
+            context.startActivity(intent)
+        }
+
         private fun openAudioFile(file: File) {
             val fileType = FileManager(context,lifecycleOwner).getFileType(file)
             try {
@@ -332,7 +240,7 @@ class FileAdapter(
                     putExtra("position", adapterPosition)
                 }
                 context.startActivity(intent)
-            } catch (e: Exception) {
+            } catch (_: Exception) {
                 Toast.makeText(
                     context,
                     context.getString(R.string.no_audio_player_found),
@@ -354,7 +262,7 @@ class FileAdapter(
                     addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
                 }
                 context.startActivity(intent)
-            } catch (e: Exception) {
+            } catch (_: Exception) {
 
                 Toast.makeText(
                     context,
@@ -364,84 +272,126 @@ class FileAdapter(
             }
         }
 
-        private fun openInPreview(fileType: FileManager.FileType) {
+        private fun setupDisplay(
-            val fileTypeString = when (fileType) {
+            file: File,
-                FileManager.FileType.IMAGE -> context.getString(R.string.image)
+            type: FileManager.FileType,
-                FileManager.FileType.VIDEO -> context.getString(R.string.video)
+            isCurrentFileEncrypted: Boolean,
-                else -> "unknown"
+            metadata: HiddenFileEntity?,
+        ) {
+            when (type) {
+                FileManager.FileType.IMAGE -> {
+                    binding.videoPlay.visibility = View.GONE
+                    binding.fileIconImageView.setPadding(0, 0, 0, 0)
+                    if (isCurrentFileEncrypted) {
+                        try {
+                            val decryptedFile = getDecryptedPreviewFile(context, metadata!!)
+                            if (decryptedFile != null && decryptedFile.exists() && decryptedFile.length() > 0) {
+                                val uri = getUriForPreviewFile(context, decryptedFile)
+                                if (uri != null) {
+                                    Glide.with(context)
+                                        .load(uri)
+                                        .centerCrop()
+                                        .diskCacheStrategy(DiskCacheStrategy.ALL)
+                                        .skipMemoryCache(false)
+                                        .error(R.drawable.encrypted)
+                                        .into(binding.fileIconImageView)
+                                } else {
+                                    showEncryptedIcon()
+                                }
+                            } else {
+                                showEncryptedIcon()
+                            }
+                        } catch (e: Exception) {
+                            Log.e("FileAdapter", "Error displaying encrypted image: ${e.message}")
+                            showEncryptedIcon()
+                        }
+                    } else {
+                        Glide.with(context)
+                            .load(file)
+                            .into(binding.fileIconImageView)
+                    }
+                }
+
+                FileManager.FileType.VIDEO -> {
+                    binding.fileIconImageView.setPadding(0, 0, 0, 0)
+                    binding.videoPlay.visibility = View.VISIBLE
+                    if (isCurrentFileEncrypted) {
+                        try {
+                            val decryptedFile = getDecryptedPreviewFile(context, metadata!!)
+                            if (decryptedFile != null && decryptedFile.exists() && decryptedFile.length() > 0) {
+                                val uri = getUriForPreviewFile(context, decryptedFile)
+                                if (uri != null) {
+                                    Glide.with(context)
+                                        .load(uri)
+                                        .centerCrop()
+                                        .diskCacheStrategy(DiskCacheStrategy.NONE)
+                                        .skipMemoryCache(true)
+                                        .error(R.drawable.encrypted)
+                                        .into(binding.fileIconImageView)
+                                    binding.fileIconImageView.setPadding(0, 0, 0, 0)
+                                } else {
+                                    showEncryptedIcon()
+                                }
+                            } else {
+                                showEncryptedIcon()
+                            }
+                        } catch (e: Exception) {
+                            Log.e("FileAdapter", "Error displaying encrypted video: ${e.message}")
+                            showEncryptedIcon()
+                        }
+                    } else {
+                        Glide.with(context)
+                            .load(file)
+                            .into(binding.fileIconImageView)
+                    }
+                }
+
+                FileManager.FileType.AUDIO -> {
+                    binding.videoPlay.visibility = View.GONE
+                    binding.fileIconImageView.setPadding(25, 25, 25, 25)
+                    binding.fileIconImageView.setImageResource(R.drawable.ic_audio)
+
+                }
+
+                else -> {
+                    binding.videoPlay.visibility = View.GONE
+                    binding.fileIconImageView.setPadding(25, 25, 25, 25)
+                    binding.fileIconImageView.setImageResource(R.drawable.ic_document)
+                }
+            }
+        }
+
+        private fun showEncryptedIcon() {
+            binding.fileIconImageView.setImageResource(R.drawable.encrypted)
+        }
+
+
+        private fun updateSelectionUI(isSelected: Boolean) {
+            binding.selectedLayer.visibility = if (isSelected) View.VISIBLE else View.GONE
+            binding.selected.visibility = if (isSelected) View.VISIBLE else View.GONE
+        }
+
+        private fun setupClickListeners(file: File, fileType: FileManager.FileType) {
+            itemView.setOnClickListener {
+                val position = adapterPosition
+                if (position == RecyclerView.NO_POSITION) return@setOnClickListener
+
+                if (isSelectionMode) {
+                    toggleSelection(position)
+                } else {
+                    openFile(file,fileType)
+                }
             }
 
-            val intent = Intent(context, PreviewActivity::class.java).apply {
+            itemView.setOnLongClickListener {
-                putExtra("type", fileTypeString)
+                val position = adapterPosition
-                putExtra("folder", currentFolder.toString())
+                if (position == RecyclerView.NO_POSITION) return@setOnLongClickListener false
-                putExtra("position", adapterPosition)
-            }
-            context.startActivity(intent)
-        }
 
-        @SuppressLint("MissingInflatedId")
+                if (!isSelectionMode) {
-        private fun renameFile(file: File) {
+                    enterSelectionMode()
-            val dialogView = LayoutInflater.from(context).inflate(R.layout.dialog_input, null)
+                    toggleSelection(position)
-            val inputEditText = dialogView.findViewById<EditText>(R.id.editText)
-            inputEditText.setText(file.name)
-            inputEditText.selectAll()
-
-            MaterialAlertDialogBuilder(context)
-                .setTitle(context.getString(R.string.rename_file))
-                .setView(dialogView)
-                .setPositiveButton(context.getString(R.string.rename)) { dialog, _ ->
-                    val newName = inputEditText.text.toString().trim()
-                    if (newName.isNotEmpty() && newName != file.name) {
-                        if (isValidFileName(newName)) {
-                            renameFileAsync(file, newName)
-                        } else {
-                            Toast.makeText(context, "Invalid file name", Toast.LENGTH_SHORT).show()
-                        }
-                    }
-                    dialog.dismiss()
-                }
-                .setNegativeButton(context.getString(R.string.cancel)) { dialog, _ ->
-                    dialog.cancel()
-                }
-                .create()
-                .show()
-        }
-
-        private fun isValidFileName(fileName: String): Boolean {
-            val forbiddenChars = charArrayOf('/', '\\', ':', '*', '?', '"', '<', '>', '|')
-            return fileName.isNotBlank() &&
-                    fileName.none { it in forbiddenChars } &&
-                    !fileName.startsWith(".") &&
-                    fileName.length <= 255
-        }
-
-        private fun renameFileAsync(file: File, newName: String) {
-            fileExecutor.execute {
-                val parentDir = file.parentFile
-                if (parentDir != null) {
-                    val newFile = File(parentDir, newName)
-                    if (newFile.exists()) {
-                        mainHandler.post {
-                            Toast.makeText(context, "File with this name already exists", Toast.LENGTH_SHORT).show()
-                        }
-                        return@execute
-                    }
-
-                    val success = try {
-                        file.renameTo(newFile)
-                    } catch (e: Exception) {
-                        false
-                    }
-
-                    mainHandler.post {
-                        if (success) {
-                            fileOperationCallback?.get()?.onFileRenamed(file, newFile)
-                            Toast.makeText(context, "File renamed", Toast.LENGTH_SHORT).show()
-                        } else {
-                            Toast.makeText(context, "Failed to rename file", Toast.LENGTH_SHORT).show()
-                        }
-                    }
                 }
+                true
             }
         }
 
@@ -459,29 +409,6 @@ class FileAdapter(
             notifyItemChanged(position)
         }
 
-        private fun showEncryptedIcon() {
-            imageView.setImageResource(R.drawable.encrypted)
-            imageView.setPadding(50, 50, 50, 50)
-        }
-
-        private fun showDecryptionTypeDialog(file: File) {
-            val options = arrayOf("Image", "Video", "Audio")
-            MaterialAlertDialogBuilder(context)
-                .setTitle("Select File Type")
-                .setMessage("Please select the type of file to decrypt")
-                .setItems(options) { _, which ->
-                    val selectedType = when (which) {
-                        0 -> FileManager.FileType.IMAGE
-                        1 -> FileManager.FileType.VIDEO
-                        2 -> FileManager.FileType.AUDIO
-                        else -> FileManager.FileType.DOCUMENT
-                    }
-                    performDecryptionWithType(file, selectedType)
-                }
-                .setNegativeButton("Cancel", null)
-                .show()
-        }
-
         private fun performDecryptionWithType(file: File, fileType: FileManager.FileType) {
             lifecycleOwner.lifecycleScope.launch {
                 try {
@@ -491,7 +418,7 @@ class FileAdapter(
                         FileManager.FileType.AUDIO -> ".mp3"
                         else -> ".txt"
                     }
-                    
+
                     val decryptedFile = SecurityUtils.changeFileExtension(file, extension)
                     if (SecurityUtils.decryptFile(context, file, decryptedFile)) {
                         if (decryptedFile.exists() && decryptedFile.length() > 0) {
@@ -536,7 +463,7 @@ class FileAdapter(
                             Toast.makeText(context, "Failed to decrypt file", Toast.LENGTH_SHORT).show()
                         }
                     }
-                } catch (e: Exception) {
+                } catch (_: Exception) {
                     mainHandler.post {
                         Toast.makeText(context, "Error decrypting file", Toast.LENGTH_SHORT).show()
                     }
@@ -545,39 +472,20 @@ class FileAdapter(
         }
     }
 
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): FileViewHolder {
+    fun isInSelectionMode(): Boolean = isSelectionMode
-        val view = LayoutInflater.from(parent.context)
-            .inflate(R.layout.list_item_file, parent, false)
-        return FileViewHolder(view)
-    }
 
-    override fun onBindViewHolder(holder: FileViewHolder, position: Int) {
+    fun onBackPressed(): Boolean {
-        if (position < itemCount) {
+        return if (isSelectionMode) {
-            val file = getItem(position)
+            exitSelectionMode()
-            holder.bind(file)
+            true
-        }
-    }
-
-    override fun onBindViewHolder(holder: FileViewHolder, position: Int, payloads: MutableList<Any>) {
-        if (payloads.isEmpty()) {
-            onBindViewHolder(holder, position)
         } else {
-            if (position < itemCount) {
+            false
-                val file = getItem(position)
-                holder.bind(file, payloads)
-            }
         }
     }
 
-    override fun submitList(list: List<File>?) {
+
-        val currentList = currentList.toMutableList()
+    private fun onSelectionCountChanged(count: Int) {
-        if (list == null) {
+        filesOperationCallback?.get()?.onSelectionCountChanged(count)
-            currentList.clear()
-            super.submitList(null)
-        } else {
-            val newList = list.filter { it.name != ".nomedia" }.toMutableList()
-            super.submitList(newList)
-        }
     }
 
     fun enterSelectionMode() {
@@ -591,92 +499,35 @@ class FileAdapter(
     fun exitSelectionMode() {
         if (isSelectionMode) {
             isSelectionMode = false
+            selectedItems.forEach { position ->
+                notifyItemChanged(position)
+            }
             selectedItems.clear()
             notifySelectionModeChange()
-            notifyDataSetChanged()
-        }
-    }
-
-    fun clearSelection() {
-        if (selectedItems.isNotEmpty()) {
-            val previouslySelected = selectedItems.toSet()
-            selectedItems.clear()
-            fileOperationCallback?.get()?.onSelectionCountChanged(0)
-            previouslySelected.forEach { position ->
-                if (position < itemCount) {
-                    notifyItemChanged(position, listOf("SELECTION_CHANGED"))
-                }
-            }
-        }
-    }
-
-    fun selectAll() {
-        if (!isSelectionMode) {
-            enterSelectionMode()
-        }
-        val previouslySelected = selectedItems.toSet()
-        selectedItems.clear()
-        for (i in 0 until itemCount) {
-            selectedItems.add(i)
-        }
-        fileOperationCallback?.get()?.onSelectionCountChanged(selectedItems.size)
-        updateSelectionItems(selectedItems.toSet(), previouslySelected)
-    }
-
-    private fun updateSelectionItems(newSelections: Set<Int>, oldSelections: Set<Int>) {
-        val changedItems = (oldSelections - newSelections) + (newSelections - oldSelections)
-        changedItems.forEach { position ->
-            if (position < itemCount) {
-                notifyItemChanged(position, listOf("SELECTION_CHANGED"))
-            }
         }
     }
 
     private fun notifySelectionModeChange() {
-        fileOperationCallback?.get()?.onSelectionModeChanged(isSelectionMode, selectedItems.size)
+        filesOperationCallback?.get()?.onSelectionModeChanged(isSelectionMode, selectedItems.size)
         onFolderLongClick(isSelectionMode)
     }
 
-    fun getSelectedItems(): List<File> {
-        return selectedItems.mapNotNull { position ->
-            if (position < itemCount) getItem(position) else null
-        }
-    }
-
-
-    fun getSelectedCount(): Int = selectedItems.size
-
-
-    fun isInSelectionMode(): Boolean = isSelectionMode
-
-
-    fun onBackPressed(): Boolean {
-        return if (isSelectionMode) {
-            exitSelectionMode()
-            true
-        } else {
-            false
-        }
-    }
-
     fun cleanup() {
         try {
             if (!fileExecutor.isShutdown) {
                 fileExecutor.shutdown()
             }
-        } catch (e: Exception) {
+        } catch (_: Exception) {
         }
 
-        fileOperationCallback?.clear()
+        filesOperationCallback?.clear()
-        fileOperationCallback = null
+        filesOperationCallback = null
-    }
-    override fun onDetachedFromRecyclerView(recyclerView: RecyclerView) {
-        super.onDetachedFromRecyclerView(recyclerView)
-        cleanup()
     }
 
-    private fun onSelectionCountChanged(count: Int) {
+    fun getSelectedItems(): List<File> {
-        fileOperationCallback?.get()?.onSelectionCountChanged(count)
+        return selectedItems.mapNotNull { position ->
+            if (position < itemCount) getItem(position) else null
+        }
     }
 
     fun encryptSelectedFiles() {
@@ -687,85 +538,16 @@ class FileAdapter(
             .setTitle(context.getString(R.string.encrypt_files))
             .setMessage(context.getString(R.string.encryption_disclaimer))
             .setPositiveButton(context.getString(R.string.encrypt)) { _, _ ->
-                performEncryption(selectedFiles)
+                FileManager(context, lifecycleOwner).performEncryption(
+                    selectedFiles
+                ) {
+                    updateItemsAfterEncryption(it)
+                }
             }
             .setNegativeButton(context.getString(R.string.cancel), null)
             .show()
     }
 
-    private fun performEncryption(selectedFiles: List<File>) {
-        lifecycleOwner.lifecycleScope.launch {
-            var successCount = 0
-            var failCount = 0
-            val updatedFiles = mutableListOf<File>()
-
-            for (file in selectedFiles) {
-                try {
-                    val hiddenFile = hiddenFileRepository.getHiddenFileByPath(file.absolutePath)
-                    if (hiddenFile?.isEncrypted == true) continue
-                    val originalExtension = ".${file.extension.lowercase()}"
-                    val fileType = FileManager(context,lifecycleOwner).getFileType(file)
-                    val encryptedFile = SecurityUtils.changeFileExtension(file, FileManager.ENCRYPTED_EXTENSION)
-                    if (SecurityUtils.encryptFile(context, file, encryptedFile)) {
-                        if (encryptedFile.exists()) {
-                            if (hiddenFile == null){
-                                hiddenFileRepository.insertHiddenFile(
-                                    HiddenFileEntity(
-                                        filePath = encryptedFile.absolutePath,
-                                        isEncrypted = true,
-                                        encryptedFileName = encryptedFile.name,
-                                        fileType = fileType,
-                                        fileName = file.name,
-                                        originalExtension = originalExtension
-                                    )
-                                )
-                            }else{
-                                hiddenFile.let {
-                                    hiddenFileRepository.updateEncryptionStatus(
-                                        filePath = hiddenFile.filePath,
-                                        newFilePath = encryptedFile.absolutePath,
-                                        encryptedFileName = encryptedFile.name,
-                                        isEncrypted = true
-                                    )
-                                }
-                            }
-                            if (file.delete()) {
-                                updatedFiles.add(encryptedFile)
-                                successCount++
-                            } else {
-                                failCount++
-                            }
-                        } else {
-                            failCount++
-                        }
-                    } else {
-                        failCount++
-                    }
-                } catch (e: Exception) {
-                    failCount++
-                }
-            }
-
-            mainHandler.post {
-                exitSelectionMode()
-                when {
-                    successCount > 0 && failCount == 0 -> {
-                        Toast.makeText(context, "Encrypted $successCount file(s)", Toast.LENGTH_SHORT).show()
-                    }
-                    successCount > 0 && failCount > 0 -> {
-                        Toast.makeText(context, "Encrypted $successCount file(s), failed to encrypt $failCount", Toast.LENGTH_LONG).show()
-                    }
-                    failCount > 0 -> {
-                        Toast.makeText(context, "Failed to encrypt $failCount file(s)", Toast.LENGTH_SHORT).show()
-                    }
-                }
-                val currentFiles = currentFolder.listFiles()?.toList() ?: emptyList()
-                submitList(currentFiles)
-                fileOperationCallback?.get()?.onRefreshNeeded()
-            }
-        }
-    }
-
     fun decryptSelectedFiles() {
         val selectedFiles = getSelectedItems()
         if (selectedFiles.isEmpty()) return
@@ -774,73 +556,40 @@ class FileAdapter(
             .setTitle(context.getString(R.string.decrypt_files))
             .setMessage(context.getString(R.string.decryption_disclaimer))
             .setPositiveButton(context.getString(R.string.decrypt)) { _, _ ->
-                performDecryption(selectedFiles)
+                FileManager(context, lifecycleOwner).performDecryption(selectedFiles) {
+                    updateItemsAfterDecryption(it)
+                }
             }
             .setNegativeButton(context.getString(R.string.cancel), null)
             .show()
     }
 
-    private fun performDecryption(selectedFiles: List<File>) {
+    fun updateItemsAfterEncryption(encryptedFiles: Map<File, File>) {
-        lifecycleOwner.lifecycleScope.launch {
-            var successCount = 0
-            var failCount = 0
-            val updatedFiles = mutableListOf<File>()
 
-            for (file in selectedFiles) {
+        val currentList = FolderManager().getFilesInFolder(currentFolder)
-                try {
+        val updatedList = currentList.map { file ->
-                    val hiddenFile = hiddenFileRepository.getHiddenFileByPath(file.absolutePath)
+            encryptedFiles[file] ?: file
-                    if (hiddenFile?.isEncrypted != true) continue
+        }.toMutableList()
-                    val originalExtension = hiddenFile.originalExtension
+        selectedItems.clear()
-                    val decryptedFile = SecurityUtils.changeFileExtension(file, originalExtension)
+        exitSelectionMode()
-                    if (SecurityUtils.decryptFile(context, file, decryptedFile)) {
+        submitList(updatedList)
-                        if (decryptedFile.exists() && decryptedFile.length() > 0) {
+        mainHandler.postDelayed({
-                            hiddenFile.let {
-                                hiddenFileRepository.updateEncryptionStatus(
-                                    filePath = file.absolutePath,
-                                    newFilePath = decryptedFile.absolutePath,
-                                    encryptedFileName = decryptedFile.name,
-                                    isEncrypted = false
-                                )
-                            }
-                            if (file.delete()) {
-                                updatedFiles.add(decryptedFile)
-                                successCount++
-                            } else {
-                                decryptedFile.delete()
-                                failCount++
-                            }
-                        } else {
-                            decryptedFile.delete()
-                            failCount++
-                        }
-                    } else {
-                        if (decryptedFile.exists()) {
-                            decryptedFile.delete()
-                        }
-                        failCount++
-                    }
-                } catch (e: Exception) {
-                    failCount++
-                }
-            }
 
-            mainHandler.post {
+            filesOperationCallback?.get()?.onRefreshNeeded()
-                exitSelectionMode()
+        },20)
-                when {
+    }
-                    successCount > 0 && failCount == 0 -> {
+
-                        Toast.makeText(context, "Decrypted $successCount file(s)", Toast.LENGTH_SHORT).show()
+    fun updateItemsAfterDecryption(decryptedFiles: Map<File, File>) {
-                    }
+        val currentList = FolderManager().getFilesInFolder(currentFolder)
-                    successCount > 0 && failCount > 0 -> {
+        val updatedList = currentList.map { file ->
-                        Toast.makeText(context, "Decrypted $successCount file(s), failed to decrypt $failCount", Toast.LENGTH_LONG).show()
+            decryptedFiles[file] ?: file
-                    }
+        }.toMutableList()
-                    failCount > 0 -> {
+        selectedItems.clear()
-                        Toast.makeText(context, "Failed to decrypt $failCount file(s)", Toast.LENGTH_SHORT).show()
+        exitSelectionMode()
-                    }
+        submitList(updatedList)
-                }
+        mainHandler.postDelayed({
-                val currentFiles = currentFolder.listFiles()?.toList() ?: emptyList()
+
-                submitList(currentFiles)
+            filesOperationCallback?.get()?.onRefreshNeeded()
-                fileOperationCallback?.get()?.onRefreshNeeded()
+        },20)
-            }
-        }
     }
 }

app/src/main/java/devs/org/calculator/adapters/FileDiffCallback.kt

@@ -37,6 +37,10 @@ class FileDiffCallback : DiffUtil.ItemCallback<File>() {
             changes.add("EXISTENCE_CHANGED")
         }
 
+        if (oldItem.absolutePath != newItem.absolutePath) {
+            changes.add("FILE_CHANGED")
+        }
+
         return changes.ifEmpty { null }
     }
 }

app/src/main/java/devs/org/calculator/adapters/ImagePreviewAdapter.kt

@@ -5,6 +5,7 @@ import android.media.MediaPlayer
 import android.net.Uri
 import android.os.Handler
 import android.os.Looper
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -71,109 +72,124 @@ class ImagePreviewAdapter(
         private var currentPosition = 0
         private var tempDecryptedFile: File? = null
 
-        fun bind(file: File, position: Int,decryptedFileType: FileManager.FileType) {
+        fun bind(file: File, position: Int, decryptedFileType: FileManager.FileType) {
             currentPosition = position
 
             releaseMediaPlayer()
             resetAudioUI()
             cleanupTempFile()
+            
             try {
                 lifecycleOwner.lifecycleScope.launch {
                     val hiddenFile = hiddenFileRepository.getHiddenFileByPath(file.absolutePath)
-                    if (hiddenFile != null){
+                    if (hiddenFile != null) {
                         val isEncrypted = hiddenFile.isEncrypted
                         val fileType = hiddenFile.fileType
                         if (isEncrypted) {
-                            val tempDecryptedFile = getDecryptedPreviewFile(context, hiddenFile)
+                            tempDecryptedFile = getDecryptedPreviewFile(context, hiddenFile)
-                            if (tempDecryptedFile != null && tempDecryptedFile.exists() && tempDecryptedFile.length() > 0) {
+                            if (tempDecryptedFile != null && tempDecryptedFile!!.exists() && tempDecryptedFile!!.length() > 0) {
-                                displayFile(tempDecryptedFile, fileType,true)
+                                displayFile(tempDecryptedFile!!, fileType, true)
                             } else {
+                                Log.e("ImagePreviewAdapter", "Failed to get decrypted preview file for: ${file.absolutePath}")
                                 showEncryptedError()
                             }
                         } else {
-                            displayFile(file, decryptedFileType,false)
+                            displayFile(file, decryptedFileType, false)
                         }
-                    }else{
+                    } else {
-                        displayFile(file, decryptedFileType,false)
+                        displayFile(file, decryptedFileType, false)
                     }
-
                 }
-
+            } catch (e: Exception) {
-            } catch (_: Exception) {
+                Log.e("ImagePreviewAdapter", "Error in bind: ${e.message}")
-
+                displayFile(file, decryptedFileType, false)
-                displayFile(file, decryptedFileType,false)
             }
-
         }
 
-        private fun displayFile(file: File, fileType: FileManager.FileType,isEncrypted: Boolean = false) {
+        private fun displayFile(file: File, fileType: FileManager.FileType, isEncrypted: Boolean = false) {
-            val uri = getUriForPreviewFile(context, file)
+            try {
-            when (fileType) {
+                val uri = if (isEncrypted) {
-                FileManager.FileType.VIDEO -> {
+                    getUriForPreviewFile(context, file)
-                    binding.imageView.visibility = View.GONE
+                } else {
-                    binding.audioBg.visibility = View.GONE
+                    Uri.fromFile(file)
-                    binding.videoView.visibility = View.VISIBLE
+                }
 
-                    val videoUri = if (isEncrypted){
+                if (uri == null) {
-                        uri
+                    Log.e("ImagePreviewAdapter", "Failed to get URI for file: ${file.absolutePath}")
-                    }else{
+                    showEncryptedError()
-                        Uri.fromFile(file)
+                    return
-                    }
+                }
-                    binding.videoView.setVideoURI(videoUri)
-                    binding.videoView.start()
 
-                    val mediaController = MediaController(context)
+                when (fileType) {
-                    mediaController.setAnchorView(binding.videoView)
+                    FileManager.FileType.VIDEO -> {
-                    binding.videoView.setMediaController(mediaController)
+                        binding.imageView.visibility = View.GONE
+                        binding.audioBg.visibility = View.GONE
+                        binding.videoView.visibility = View.VISIBLE
 
-                    mediaController.setPrevNextListeners(
+                        binding.videoView.setVideoURI(uri)
-                        {
+                        binding.videoView.start()
+
+                        val mediaController = MediaController(context)
+                        mediaController.setAnchorView(binding.videoView)
+                        binding.videoView.setMediaController(mediaController)
+
+                        mediaController.setPrevNextListeners(
+                            {
+                                val nextPosition = (adapterPosition + 1) % images.size
+                                playVideoAtPosition(nextPosition)
+                            },
+                            {
+                                val prevPosition = if (adapterPosition - 1 < 0) images.size - 1 else adapterPosition - 1
+                                playVideoAtPosition(prevPosition)
+                            }
+                        )
+
+                        binding.videoView.setOnCompletionListener {
                             val nextPosition = (adapterPosition + 1) % images.size
                             playVideoAtPosition(nextPosition)
-                        },
-                        {
-                            val prevPosition = if (adapterPosition - 1 < 0) images.size - 1 else adapterPosition - 1
-                            playVideoAtPosition(prevPosition)
                         }
-                    )
+                    }
+                    FileManager.FileType.IMAGE -> {
+                        binding.imageView.visibility = View.VISIBLE
+                        binding.videoView.visibility = View.GONE
+                        binding.audioBg.visibility = View.GONE
+                        Glide.with(context)
+                            .load(uri)
+                            .error(R.drawable.encrypted)
+                            .into(binding.imageView)
+                    }
+                    FileManager.FileType.AUDIO -> {
+                        val audioFile: File? = if (isEncrypted) {
+                            getFileFromUri(context, uri)
+                        } else {
+                            file
+                        }
+                        if (audioFile == null) {
+                            Log.e("ImagePreviewAdapter", "Failed to get audio file from URI")
+                            showEncryptedError()
+                            return
+                        }
+                        binding.imageView.visibility = View.GONE
+                        binding.audioBg.visibility = View.VISIBLE
+                        binding.videoView.visibility = View.GONE
+                        binding.audioTitle.text = file.name
 
-                    binding.videoView.setOnCompletionListener {
+                        setupAudioPlayer(audioFile)
-                        val nextPosition = (adapterPosition + 1) % images.size
+                        setupPlaybackControls()
-                        playVideoAtPosition(nextPosition)
+                    }
+                    else -> {
+                        binding.imageView.visibility = View.VISIBLE
+                        binding.audioBg.visibility = View.GONE
+                        binding.videoView.visibility = View.GONE
+                        Glide.with(context)
+                            .load(uri)
+                            .error(R.drawable.encrypted)
+                            .into(binding.imageView)
                     }
                 }
-                FileManager.FileType.IMAGE -> {
+            } catch (e: Exception) {
-                    val imageUri = if (isEncrypted){
+                Log.e("ImagePreviewAdapter", "Error displaying file: ${e.message}")
-                        uri
+                showEncryptedError()
-                    }else{
-                        Uri.fromFile(file)
-                    }
-                    binding.imageView.visibility = View.VISIBLE
-                    binding.videoView.visibility = View.GONE
-                    binding.audioBg.visibility = View.GONE
-                    Glide.with(context)
-                        .load(imageUri)
-                        .into(binding.imageView)
-                }
-                FileManager.FileType.AUDIO -> {
-                    val audioFile: File? = if (isEncrypted) {
-                        getFileFromUri(context, uri!!)
-                    } else {
-                        file
-                    }
-                    binding.imageView.visibility = View.GONE
-                    binding.audioBg.visibility = View.VISIBLE
-                    binding.videoView.visibility = View.GONE
-                    binding.audioTitle.text = file.name
-
-                    setupAudioPlayer(audioFile!!)
-                    setupPlaybackControls()
-                }
-                else -> {
-                    binding.imageView.visibility = View.VISIBLE
-                    binding.audioBg.visibility = View.GONE
-                    binding.videoView.visibility = View.GONE
-                }
             }
         }
 
@@ -199,11 +215,12 @@ class ImagePreviewAdapter(
         }
 
         private fun cleanupTempFile() {
-            tempDecryptedFile?.let { file ->
+            tempDecryptedFile?.let {
-                if (file.exists()) {
+                if (it.exists()) {
                     try {
-                        file.delete()
+                        it.delete()
-                    } catch (_: Exception) {
+                    } catch (e: Exception) {
+                        Log.e("ImagePreviewAdapter", "Error cleaning up temp file: ${e.message}")
                     }
                 }
                 tempDecryptedFile = null

app/src/main/java/devs/org/calculator/utils/FileManager.kt

@@ -1,5 +1,6 @@
 package devs.org.calculator.utils
 
+import android.Manifest
 import android.app.Activity
 import android.app.RecoverableSecurityException
 import android.content.ActivityNotFoundException
@@ -8,6 +9,8 @@ import android.content.Intent
 import android.net.Uri
 import android.os.Build
 import android.os.Environment
+import android.os.Handler
+import android.os.Looper
 import android.provider.MediaStore
 import android.provider.Settings
 import android.webkit.MimeTypeMap
@@ -15,29 +18,23 @@ import android.widget.Toast
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.IntentSenderRequest
 import androidx.core.app.ActivityCompat
+import androidx.core.content.FileProvider
 import androidx.documentfile.provider.DocumentFile
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.lifecycleScope
 import devs.org.calculator.callbacks.FileProcessCallback
+import devs.org.calculator.database.AppDatabase
+import devs.org.calculator.database.HiddenFileEntity
+import devs.org.calculator.database.HiddenFileRepository
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import java.io.File
-import android.Manifest
-import androidx.core.content.FileProvider
-import devs.org.calculator.R
-import devs.org.calculator.database.AppDatabase
-import devs.org.calculator.database.HiddenFileRepository
-import devs.org.calculator.utils.PrefsUtil
-import android.util.Log
-import devs.org.calculator.database.HiddenFileEntity
-import java.io.FileOutputStream
 
 class FileManager(private val context: Context, private val lifecycleOwner: LifecycleOwner) {
     private lateinit var intentSenderLauncher: ActivityResultLauncher<IntentSenderRequest>
     val intent = Intent()
-    private val prefs: PrefsUtil by lazy { PrefsUtil(context) }
     val hiddenFileRepository: HiddenFileRepository by lazy {
         HiddenFileRepository(AppDatabase.getDatabase(context).hiddenFileDao())
     }
@@ -67,15 +64,6 @@ class FileManager(private val context: Context, private val lifecycleOwner: Life
         return dir
     }
 
-    fun getFilesInHiddenDir(type: FileType): List<File> {
-        val hiddenDir = getHiddenDirectory()
-        val typeDir = File(hiddenDir, type.dirName)
-        if (!typeDir.exists()) {
-            typeDir.mkdirs()
-            File(typeDir, ".nomedia").createNewFile()
-        }
-        return typeDir.listFiles()?.filterNotNull()?.filter { it.name != ".nomedia" } ?: emptyList()
-    }
     fun getFilesInHiddenDirFromFolder(type: FileType, folder: String): List<File> {
         val typeDir = File(folder)
         if (!typeDir.exists()) {
@@ -117,8 +105,6 @@ class FileManager(private val context: Context, private val lifecycleOwner: Life
                 throw Exception("File copy failed")
             }
 
-            // Encrypt file if encryption is enabled
-
             // Media scan the new file to hide it
             val mediaScanIntent = Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE)
             mediaScanIntent.data = Uri.fromFile(targetDir)
@@ -172,62 +158,6 @@ class FileManager(private val context: Context, private val lifecycleOwner: Life
             null
         }
     }
-
-    fun unHideFile(file: File, onSuccess: (() -> Unit)? = null, onError: ((String) -> Unit)? = null) {
-        lifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
-            try {
-                // Create target directory (Downloads)
-                val targetDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
-                targetDir.mkdirs()
-
-                // Create target file with same name or timestamp
-                val targetFile = File(targetDir, file.name)
-
-                // If file with same name exists, add timestamp
-                val finalTargetFile = if (targetFile.exists()) {
-                    val nameWithoutExt = file.nameWithoutExtension
-                    val extension = file.extension
-                    File(targetDir, "${nameWithoutExt}_${System.currentTimeMillis()}.${extension}")
-                } else {
-                    targetFile
-                }
-
-                // Check if file is encrypted
-                if (file.extension == ENCRYPTED_EXTENSION) {
-                    // Decrypt file
-                    val decryptedFile = SecurityUtils.changeFileExtension(file, SecurityUtils.getFileExtension(file))
-                    if (SecurityUtils.decryptFile(context, file, decryptedFile)) {
-                        decryptedFile.copyTo(finalTargetFile, overwrite = false)
-                        decryptedFile.delete()
-                    } else {
-                        throw Exception("Failed to decrypt file")
-                    }
-                } else {
-                    // Copy file content
-                    file.copyTo(finalTargetFile, overwrite = false)
-                }
-
-                // Verify copy success
-                if (!finalTargetFile.exists() || finalTargetFile.length() == 0L) {
-                    throw Exception("File copy failed")
-                }
-
-                // Media scan the new file
-                val mediaScanIntent = Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE)
-                mediaScanIntent.data = Uri.fromFile(finalTargetFile)
-                context.sendBroadcast(mediaScanIntent)
-
-                withContext(Dispatchers.Main) {
-                    onSuccess?.invoke()
-                }
-            } catch (e: Exception) {
-                e.printStackTrace()
-                withContext(Dispatchers.Main) {
-                    onError?.invoke(e.message ?: "Unknown error occurred")
-                }
-            }
-        }
-    }
     
     suspend fun deletePhotoFromExternalStorage(photoUri: Uri) {
         withContext(Dispatchers.IO) {
@@ -235,7 +165,7 @@ class FileManager(private val context: Context, private val lifecycleOwner: Life
                 // First try to delete using DocumentFile
                 val documentFile = DocumentFile.fromSingleUri(context, photoUri)
                 if (documentFile?.exists() == true && documentFile.canWrite()) {
-                    val deleted = documentFile.delete()
+                    documentFile.delete()
                     withContext(Dispatchers.Main) {
 //                            Toast.makeText(context, "File deleted successfully", Toast.LENGTH_SHORT).show()
                     }
@@ -400,5 +330,141 @@ class FileManager(private val context: Context, private val lifecycleOwner: Life
         ALL("all")
     }
 
+    fun performEncryption(selectedFiles: List<File>,onEncryptionEnded :(MutableMap<File, File>)-> Unit) {
+        lifecycleOwner.lifecycleScope.launch {
+            var successCount = 0
+            var failCount = 0
+            val encryptedFiles = mutableMapOf<File, File>()
+
+            for (file in selectedFiles) {
+                try {
+                    val hiddenFile = hiddenFileRepository.getHiddenFileByPath(file.absolutePath)
+                    if (hiddenFile?.isEncrypted == true) continue
+                    val originalExtension = ".${file.extension.lowercase()}"
+                    val fileType = FileManager(context,lifecycleOwner).getFileType(file)
+                    val encryptedFile = SecurityUtils.changeFileExtension(file, devs.org.calculator.utils.FileManager.ENCRYPTED_EXTENSION)
+                    if (SecurityUtils.encryptFile(context, file, encryptedFile)) {
+                        if (encryptedFile.exists()) {
+                            if (hiddenFile == null){
+                                hiddenFileRepository.insertHiddenFile(
+                                    HiddenFileEntity(
+                                        filePath = encryptedFile.absolutePath,
+                                        isEncrypted = true,
+                                        encryptedFileName = encryptedFile.name,
+                                        fileType = fileType,
+                                        fileName = file.name,
+                                        originalExtension = originalExtension
+                                    )
+                                )
+                            }else{
+                                hiddenFile.let {
+                                    hiddenFileRepository.updateEncryptionStatus(
+                                        filePath = hiddenFile.filePath,
+                                        newFilePath = encryptedFile.absolutePath,
+                                        encryptedFileName = encryptedFile.name,
+                                        isEncrypted = true
+                                    )
+                                }
+                            }
+                            if (file.delete()) {
+                                encryptedFiles[file] = encryptedFile
+                                successCount++
+                            } else {
+                                failCount++
+                            }
+                        } else {
+                            failCount++
+                        }
+                    } else {
+                        failCount++
+                    }
+                } catch (e: Exception) {
+                    failCount++
+                }
+            }
+
+            Handler(Looper.getMainLooper()).post{
+                when {
+                    successCount > 0 && failCount == 0 -> {
+                        Toast.makeText(context, "Files encrypted successfully", Toast.LENGTH_SHORT).show()
+                        onEncryptionEnded(encryptedFiles)
+                    }
+                    successCount > 0 && failCount > 0 -> {
+                        Toast.makeText(context, "Some files could not be encrypted", Toast.LENGTH_SHORT).show()
+                        onEncryptionEnded(encryptedFiles)
+                    }
+                    else -> {
+                        Toast.makeText(context, "Failed to encrypt files", Toast.LENGTH_SHORT).show()
+                        onEncryptionEnded(encryptedFiles)
+                    }
+                }
+            }
+        }
+    }
+
+    fun performDecryption(selectedFiles: List<File>,onDecryptionEnded :(MutableMap<File, File>) -> Unit) {
+        lifecycleOwner.lifecycleScope.launch {
+            var successCount = 0
+            var failCount = 0
+            val decryptedFiles = mutableMapOf<File, File>()
+
+            for (file in selectedFiles) {
+                try {
+                    val hiddenFile = hiddenFileRepository.getHiddenFileByPath(file.absolutePath)
+                    if (hiddenFile?.isEncrypted == true) {
+                        val originalExtension = hiddenFile.originalExtension
+                        val decryptedFile = SecurityUtils.changeFileExtension(file, originalExtension)
+                        if (SecurityUtils.decryptFile(context, file, decryptedFile)) {
+                            if (decryptedFile.exists() && decryptedFile.length() > 0) {
+                                hiddenFile.let {
+                                    hiddenFileRepository.updateEncryptionStatus(
+                                        filePath = file.absolutePath,
+                                        newFilePath = decryptedFile.absolutePath,
+                                        encryptedFileName = decryptedFile.name,
+                                        isEncrypted = false
+                                    )
+                                }
+                                if (file.delete()) {
+                                    decryptedFiles[file] = decryptedFile
+                                    successCount++
+                                } else {
+                                    decryptedFile.delete()
+                                    failCount++
+                                }
+                            } else {
+                                decryptedFile.delete()
+                                failCount++
+                            }
+                        } else {
+                            if (decryptedFile.exists()) {
+                                decryptedFile.delete()
+                            }
+                            failCount++
+                        }
+                    }
+                } catch (e: Exception) {
+                    failCount++
+                }
+            }
+
+            Handler(Looper.getMainLooper()).post{
+                when {
+                    successCount > 0 && failCount == 0 -> {
+                        Toast.makeText(context, "Files decrypted successfully", Toast.LENGTH_SHORT).show()
+                        onDecryptionEnded(decryptedFiles)
+                    }
+                    successCount > 0 && failCount > 0 -> {
+                        Toast.makeText(context, "Some files could not be decrypted", Toast.LENGTH_SHORT).show()
+                        onDecryptionEnded(decryptedFiles)
+                    }
+                    else -> {
+                        Toast.makeText(context, "Failed to decrypt files", Toast.LENGTH_SHORT).show()
+                        onDecryptionEnded(decryptedFiles)
+                    }
+                }
+            }
+        }
+    }
+
 
 }

app/src/main/java/devs/org/calculator/utils/SecurityUtils.kt

@@ -17,11 +17,13 @@ import android.content.SharedPreferences
 import androidx.core.content.FileProvider
 import devs.org.calculator.database.HiddenFileEntity
 import androidx.core.content.edit
+import android.util.Log
 
 object SecurityUtils {
     private const val ALGORITHM = "AES"
     private const val TRANSFORMATION = "AES/CBC/PKCS5Padding"
     private const val KEY_SIZE = 256
+    val ENCRYPTED_EXTENSION = ".enc"
 
     private fun getSecretKey(context: Context): SecretKey {
         val keyStore = context.getSharedPreferences("keystore", Context.MODE_PRIVATE)
@@ -109,44 +111,59 @@ object SecurityUtils {
         try {
             val encryptedFile = File(meta.filePath)
             if (!encryptedFile.exists()) {
+                Log.e("SecurityUtils", "Encrypted file does not exist: ${meta.filePath}")
                 return null
             }
 
             val tempDir = File(context.cacheDir, "preview_temp")
-            if (!tempDir.exists()) tempDir.mkdirs()
+            if (!tempDir.exists()) {
+                if (!tempDir.mkdirs()) {
+                    Log.e("SecurityUtils", "Failed to create temp directory")
+                    return null
+                }
+            }
+
+            // Clean up old preview files
+            tempDir.listFiles()?.forEach { 
+                if (it.lastModified() < System.currentTimeMillis() - 5 * 60 * 1000) { // 5 minutes
+                    it.delete()
+                }
+            }
 
             val tempFile = File(tempDir, "preview_${System.currentTimeMillis()}_${meta.fileName}")
-
+            
-            tempDir.listFiles()?.forEach { it.delete() }
-
             val success = decryptFile(context, encryptedFile, tempFile)
             
             if (success && tempFile.exists() && tempFile.length() > 0) {
                 return tempFile
             } else {
+                Log.e("SecurityUtils", "Failed to decrypt preview file: ${meta.filePath}")
                 if (tempFile.exists()) tempFile.delete()
                 return null
             }
-        } catch (_: Exception) {
+        } catch (e: Exception) {
+            Log.e("SecurityUtils", "Error in getDecryptedPreviewFile: ${e.message}")
             return null
         }
     }
 
-
     fun getUriForPreviewFile(context: Context, file: File): Uri? {
         return try {
+            if (!file.exists() || file.length() == 0L) {
+                Log.e("SecurityUtils", "Preview file does not exist or is empty: ${file.absolutePath}")
+                return null
+            }
             FileProvider.getUriForFile(
                 context,
-                "${context.packageName}.provider", // Must match AndroidManifest
+                "${context.packageName}.provider",
                 file
             )
-        } catch (_: Exception) {
+        } catch (e: Exception) {
+            Log.e("SecurityUtils", "Error getting URI for preview file: ${e.message}")
             null
         }
     }
 
-
-
     fun decryptFile(context: Context, inputFile: File, outputFile: File): Boolean {
         return try {
             if (!inputFile.exists()) {

app/src/main/java/devs/org/calculator/utils/StoragePermissionUtil.kt

@@ -7,6 +7,7 @@ import android.net.Uri
 import android.os.Build
 import android.os.Environment
 import android.provider.Settings
+import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.ActivityCompat
@@ -15,20 +16,15 @@ import androidx.core.content.PermissionChecker
 import androidx.core.net.toUri
 
 class StoragePermissionUtil(private val activity: AppCompatActivity) {
-    
-    private val requestPermissionLauncher = activity.registerForActivityResult(
-        ActivityResultContracts.RequestMultiplePermissions()
-    ) { permissions ->
-        if (permissions.all { it.value }) {
-            onPermissionGranted?.invoke()
-        }
-    }
 
     private var onPermissionGranted: (() -> Unit)? = null
 
-    fun requestStoragePermission(onGranted: () -> Unit) {
+    fun requestStoragePermission(
+        launcher: ActivityResultLauncher<Array<String>>,
+        onGranted: () -> Unit
+    ) {
         onPermissionGranted = onGranted
-        
+
         when {
             Build.VERSION.SDK_INT >= Build.VERSION_CODES.R -> {
                 if (Environment.isExternalStorageManager()) {
@@ -45,7 +41,7 @@ class StoragePermissionUtil(private val activity: AppCompatActivity) {
                     Manifest.permission.READ_EXTERNAL_STORAGE,
                     Manifest.permission.WRITE_EXTERNAL_STORAGE
                 )
-                requestPermissionLauncher.launch(permissions)
+                launcher.launch(permissions)
             }
         }
     }
@@ -66,4 +62,10 @@ class StoragePermissionUtil(private val activity: AppCompatActivity) {
                     writePermission == PermissionChecker.PERMISSION_GRANTED
         }
     }
-} 
+
+    fun handlePermissionResult(permissions: Map<String, Boolean>) {
+        if (permissions.all { it.value }) {
+            onPermissionGranted?.invoke()
+        }
+    }
+}

app/src/main/res/layout/activity_change_password.xml

@@ -5,74 +5,86 @@
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:padding="16dp"
     tools:context=".activities.SetupPasswordActivity">
 
-    <com.google.android.material.textview.MaterialTextView
+    <LinearLayout
-        android:id="@+id/tvTitle"
+        android:layout_width="match_parent"
-        android:layout_width="wrap_content"
+        android:layout_height="0dp"
-        android:layout_height="wrap_content"
+        android:gravity="center_horizontal"
-        android:text="@string/change_password"
+        android:orientation="vertical"
-        android:textSize="24sp"
+        android:padding="18dp"
-        android:textStyle="bold"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toTopOf="parent">
 
-    <com.google.android.material.textfield.TextInputLayout
+        <com.google.android.material.textview.MaterialTextView
-        android:id="@+id/tilOldPassword"
+            android:id="@+id/tvTitle"
-        android:layout_width="match_parent"
+            android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+            android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
+            android:text="@string/change_password"
-        android:hint="@string/enter_old_password"
+            android:textSize="24sp"
-        app:endIconMode="password_toggle"
+            android:textStyle="bold"
-        app:layout_constraintTop_toBottomOf="@id/tvTitle">
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
 
-        <com.google.android.material.textfield.TextInputEditText
+        <com.google.android.material.textfield.TextInputLayout
-            android:id="@+id/etOldPassword"
+            android:id="@+id/tilOldPassword"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:imeOptions="actionNext"
+            android:layout_marginTop="32dp"
-            android:singleLine="true"
+            android:hint="@string/enter_old_password"
-            android:inputType="number" />
+            app:endIconMode="password_toggle"
-    </com.google.android.material.textfield.TextInputLayout>
+            app:layout_constraintTop_toBottomOf="@id/tvTitle">
 
-    <com.google.android.material.textfield.TextInputLayout
+            <com.google.android.material.textfield.TextInputEditText
-        android:id="@+id/tilNewPassword"
+                android:id="@+id/etOldPassword"
-        android:layout_width="match_parent"
+                android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+                android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
+                android:imeOptions="actionNext"
-        android:hint="@string/enter_new_password"
+                android:inputType="number"
-        app:endIconMode="password_toggle"
+                android:singleLine="true" />
-        app:layout_constraintTop_toBottomOf="@id/tilOldPassword">
+        </com.google.android.material.textfield.TextInputLayout>
 
-        <com.google.android.material.textfield.TextInputEditText
+        <com.google.android.material.textfield.TextInputLayout
-            android:id="@+id/etNewPassword"
+            android:id="@+id/tilNewPassword"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:imeOptions="actionNext"
+            android:layout_marginTop="16dp"
-            android:singleLine="true"
+            android:hint="@string/enter_new_password"
-            android:inputType="number" />
+            app:endIconMode="password_toggle"
-    </com.google.android.material.textfield.TextInputLayout>
+            app:layout_constraintTop_toBottomOf="@id/tilOldPassword">
 
-    <com.google.android.material.button.MaterialButton
+            <com.google.android.material.textfield.TextInputEditText
-        android:id="@+id/btnChangePassword"
+                android:id="@+id/etNewPassword"
-        android:layout_width="match_parent"
+                android:layout_width="match_parent"
-        android:layout_height="50dp"
+                android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
+                android:imeOptions="actionNext"
-        android:padding="12dp"
+                android:inputType="number"
-        android:text="@string/change_password"
+                android:singleLine="true" />
-        app:layout_constraintTop_toBottomOf="@id/tilNewPassword" />
+        </com.google.android.material.textfield.TextInputLayout>
 
-    <com.google.android.material.button.MaterialButton
+        <com.google.android.material.button.MaterialButton
-        android:id="@+id/btnResetPassword"
+            android:id="@+id/btnChangePassword"
-        style="@style/Widget.MaterialComponents.Button.TextButton"
+            android:layout_width="match_parent"
-        android:layout_width="wrap_content"
+            android:layout_height="50dp"
-        android:layout_height="wrap_content"
+            android:layout_marginTop="32dp"
-        android:layout_marginTop="8dp"
+            android:padding="12dp"
-        android:text="@string/forgot_password"
+            android:text="@string/change_password"
-        app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/tilNewPassword" />
-        app:layout_constraintStart_toStartOf="parent"
+
-        app:layout_constraintTop_toBottomOf="@id/btnChangePassword" />
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/btnResetPassword"
+            style="@style/Widget.MaterialComponents.Button.TextButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:text="@string/forgot_password"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/btnChangePassword" />
+
+    </LinearLayout>
 
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_main.xml

@@ -48,7 +48,7 @@
                     android:gravity="end|bottom"
                     android:autoSizeTextType="uniform"
                     android:padding="10dp"
-                    android:text=""
+                    android:text="0"
                     android:textSize="70sp"
                     tools:ignore="Suspicious0dp" />
             </LinearLayout>

app/src/main/res/layout/activity_preview.xml

@@ -2,6 +2,7 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
+    android:id="@+id/main"
     android:layout_height="match_parent"
     android:orientation="vertical">
 

app/src/main/res/layout/activity_settings.xml

@@ -3,6 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
+    android:id="@+id/main"
     android:layout_height="match_parent"
     tools:context=".activities.SettingsActivity">
 

app/src/main/res/layout/activity_setup_password.xml

@@ -5,104 +5,116 @@
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:padding="16dp"
     tools:context=".activities.SetupPasswordActivity">
 
-    <com.google.android.material.textview.MaterialTextView
+    <LinearLayout
-        android:id="@+id/tvTitle"
+        android:layout_width="match_parent"
-        android:layout_width="wrap_content"
+        android:layout_height="0dp"
-        android:layout_height="wrap_content"
+        android:orientation="vertical"
-        android:text="@string/setup_password"
+        android:padding="18dp"
-        android:textSize="24sp"
+        android:gravity="center_horizontal"
-        android:textStyle="bold"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toTopOf="parent">
 
-    <com.google.android.material.textfield.TextInputLayout
-        android:id="@+id/tilPassword"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
-        android:hint="@string/enter_password"
-        app:endIconMode="password_toggle"
-        app:layout_constraintTop_toBottomOf="@id/tvTitle">
 
-        <com.google.android.material.textfield.TextInputEditText
+        <com.google.android.material.textview.MaterialTextView
-            android:id="@+id/etPassword"
+            android:id="@+id/tvTitle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/setup_password"
+            android:textSize="24sp"
+            android:textStyle="bold"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/tilPassword"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:imeOptions="actionNext"
+            android:layout_marginTop="32dp"
-            android:singleLine="true"
+            android:hint="@string/enter_password"
-            android:inputType="number" />
+            app:endIconMode="password_toggle"
-    </com.google.android.material.textfield.TextInputLayout>
+            app:layout_constraintTop_toBottomOf="@id/tvTitle">
 
-    <com.google.android.material.textfield.TextInputLayout
+            <com.google.android.material.textfield.TextInputEditText
-        android:id="@+id/tilConfirmPassword"
+                android:id="@+id/etPassword"
-        android:layout_width="match_parent"
+                android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+                android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
+                android:imeOptions="actionNext"
-        android:hint="@string/confirm_password"
+                android:inputType="number"
-        app:endIconMode="password_toggle"
+                android:singleLine="true" />
-        app:layout_constraintTop_toBottomOf="@id/tilPassword">
+        </com.google.android.material.textfield.TextInputLayout>
 
-        <com.google.android.material.textfield.TextInputEditText
+        <com.google.android.material.textfield.TextInputLayout
-            android:id="@+id/etConfirmPassword"
+            android:id="@+id/tilConfirmPassword"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:imeOptions="actionNext"
+            android:layout_marginTop="16dp"
-            android:singleLine="true"
+            android:hint="@string/confirm_password"
-            android:inputType="number" />
+            app:endIconMode="password_toggle"
-    </com.google.android.material.textfield.TextInputLayout>
+            app:layout_constraintTop_toBottomOf="@id/tilPassword">
 
-    <com.google.android.material.textfield.TextInputLayout
+            <com.google.android.material.textfield.TextInputEditText
-        android:id="@+id/tilSecurityQuestion"
+                android:id="@+id/etConfirmPassword"
-        android:layout_width="match_parent"
+                android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+                android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
+                android:imeOptions="actionNext"
-        android:hint="@string/security_question_for_password_reset"
+                android:inputType="number"
-        app:layout_constraintTop_toBottomOf="@id/tilConfirmPassword">
+                android:singleLine="true" />
+        </com.google.android.material.textfield.TextInputLayout>
 
-        <com.google.android.material.textfield.TextInputEditText
+        <com.google.android.material.textfield.TextInputLayout
-            android:id="@+id/etSecurityQuestion"
+            android:id="@+id/tilSecurityQuestion"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:inputType="text" />
+            android:layout_marginTop="16dp"
-    </com.google.android.material.textfield.TextInputLayout>
+            android:hint="@string/security_question_for_password_reset"
+            app:layout_constraintTop_toBottomOf="@id/tilConfirmPassword">
 
-    <com.google.android.material.textfield.TextInputLayout
+            <com.google.android.material.textfield.TextInputEditText
-        android:id="@+id/tilSecurityAnswer"
+                android:id="@+id/etSecurityQuestion"
-        android:layout_width="match_parent"
+                android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+                android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
+                android:inputType="text" />
-        android:hint="@string/security_answer"
+        </com.google.android.material.textfield.TextInputLayout>
-        app:layout_constraintTop_toBottomOf="@id/tilSecurityQuestion">
 
-        <com.google.android.material.textfield.TextInputEditText
+        <com.google.android.material.textfield.TextInputLayout
-            android:id="@+id/etSecurityAnswer"
+            android:id="@+id/tilSecurityAnswer"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:inputType="text" />
+            android:layout_marginTop="16dp"
-    </com.google.android.material.textfield.TextInputLayout>
+            android:hint="@string/security_answer"
+            app:layout_constraintTop_toBottomOf="@id/tilSecurityQuestion">
 
-    <com.google.android.material.button.MaterialButton
+            <com.google.android.material.textfield.TextInputEditText
-        android:id="@+id/btnSavePassword"
+                android:id="@+id/etSecurityAnswer"
-        android:layout_width="match_parent"
+                android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+                android:layout_height="wrap_content"
-        android:layout_marginTop="32dp"
+                android:inputType="text" />
-        android:padding="12dp"
+        </com.google.android.material.textfield.TextInputLayout>
-        android:text="@string/save_password"
-        app:layout_constraintTop_toBottomOf="@id/tilSecurityAnswer" />
 
-    <com.google.android.material.button.MaterialButton
+        <com.google.android.material.button.MaterialButton
-        android:id="@+id/btnResetPassword"
+            android:id="@+id/btnSavePassword"
-        style="@style/Widget.MaterialComponents.Button.TextButton"
+            android:layout_width="match_parent"
-        android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
-        android:layout_height="wrap_content"
+            android:layout_marginTop="32dp"
-        android:layout_marginTop="8dp"
+            android:padding="12dp"
-        android:text="@string/forgot_password"
+            android:text="@string/save_password"
-        app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/tilSecurityAnswer" />
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/btnSavePassword" />
 
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/btnResetPassword"
+            style="@style/Widget.MaterialComponents.Button.TextButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:text="@string/forgot_password"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/btnSavePassword" />
+
+    </LinearLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_view_folder.xml

@@ -45,20 +45,27 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             app:icon="@drawable/ic_more"
+            android:visibility="gone"
             style="@style/Widget.Material3.Button.IconButton"/>
 
     </LinearLayout>
 
-    <androidx.recyclerview.widget.RecyclerView
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
-        android:id="@+id/recyclerView"
         android:layout_width="match_parent"
-        android:layout_height="0dp"
+        android:id="@+id/swipeLayout"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/toolBar">
+        app:layout_constraintTop_toBottomOf="@+id/toolBar"
+        android:layout_height="0dp">
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recyclerView"
+            android:layout_width="match_parent"
+            android:layout_height="0dp">
+
+        </androidx.recyclerview.widget.RecyclerView>
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
 
-    </androidx.recyclerview.widget.RecyclerView>
 
     <LinearLayout
         android:id="@+id/noItems"

app/src/main/res/layout/bottom_sheet_folder_selection.xml

@@ -4,6 +4,7 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:orientation="vertical"
+
     android:padding="16dp">
 
     <androidx.cardview.widget.CardView

app/src/main/res/layout/list_item_file.xml

@@ -35,8 +35,7 @@
                         android:layout_width="match_parent"
                         android:layout_height="match_parent"
                         android:layout_gravity="center"
-                        android:scaleType="centerCrop"
+                        android:scaleType="centerCrop"/>
-                        android:src="@drawable/add_image" />
                     <View
                         android:id="@+id/shade"
                         android:layout_width="match_parent"

app/src/main/res/values/strings.xml

@@ -1,5 +1,6 @@
 <resources>
-    <string name="app_name">Calculator</string>
+    <string name="app_name" translatable="false">Calculator</string>
+    <string name="version" translatable="false">Version 1.4.1</string>
     <string name="invalid_message">Invalid Value Entered</string>
     <string name="add_image">Add Image</string>
     <string name="add_audio">Add Audio</string>
@@ -121,7 +122,6 @@
     <string name="app_settings">App Settings</string>
     <string name="restrict_screenshots_in_hidden_section">Restrict Screenshots in Hidden Section</string>
     <string name="security_settings">Security Settings</string>
-    <string name="version">Version 1.4.0</string>
     <string name="app_details">App Details</string>
     <string name="setup_password">Setup Password</string>
     <string name="security_question_for_password_reset">Security Question (For Password Reset)</string>

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-agp = "8.9.3"
+agp = "8.11.1"
 documentfile = "1.1.0"
 exp4j = "0.4.8"
 glide = "4.16.0"
@@ -8,7 +8,7 @@ coreKtx = "1.16.0"
 junit = "4.13.2"
 junitVersion = "1.2.1"
 espressoCore = "3.6.1"
-appcompat = "1.7.0"
+appcompat = "1.7.1"
 lottie = "6.2.0"
 material = "1.12.0"
 activity = "1.10.1"
@@ -17,6 +17,7 @@ materialColorUtilities = "1.3.0"
 gridlayout = "1.1.0"
 photoview = "2.3.0"
 roomRuntime = "2.7.1"
+swiperefreshlayout = "1.2.0-beta01"
 viewpager = "1.1.0"
 zoomage = "1.3.1"
 
@@ -26,6 +27,7 @@ androidx-documentfile = { module = "androidx.documentfile:documentfile", version
 androidx-room-compiler = { module = "androidx.room:room-compiler", version.ref = "roomRuntime" }
 androidx-room-ktx = { module = "androidx.room:room-ktx", version.ref = "roomRuntime" }
 androidx-room-runtime = { module = "androidx.room:room-runtime", version.ref = "roomRuntime" }
+androidx-swiperefreshlayout = { module = "androidx.swiperefreshlayout:swiperefreshlayout", version.ref = "swiperefreshlayout" }
 androidx-viewpager = { module = "androidx.viewpager:viewpager", version.ref = "viewpager" }
 exp4j = { module = "net.objecthunter:exp4j", version.ref = "exp4j" }
 glide = { module = "com.github.bumptech.glide:glide", version.ref = "glide" }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 #Sun Nov 03 19:53:13 IST 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists