✨

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

@@ -32,7 +32,7 @@ class AudioGalleryActivity : BaseGalleryActivity(), FileProcessCallback {
                             uriList.add(uri)
                         }
                     } else {
-                        result.data?.data?.let { uriList.add(it) } // Single file selected
+                        result.data?.data?.let { uriList.add(it) }
                     }
 
                     if (uriList.isNotEmpty()) {

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

@@ -32,7 +32,6 @@ abstract class BaseGalleryActivity : AppCompatActivity() {
         if (granted || Build.VERSION.SDK_INT >= Build.VERSION_CODES.R && Environment.isExternalStorageManager()) {
             loadFiles()
         } else {
-            // Handle permission denial case
             showPermissionDeniedDialog()
         }
     }
@@ -47,6 +46,29 @@ abstract class BaseGalleryActivity : AppCompatActivity() {
 
         fileManager = FileManager(this, this)
 
+        binding.fabAdd.text = when(fileType){
+            FileManager.FileType.IMAGE -> {
+                 "Add Image"
+            }
+            FileManager.FileType.AUDIO -> {
+                "Add Audio"
+            }
+            FileManager.FileType.VIDEO -> {
+                "Add Video"
+            }
+            FileManager.FileType.DOCUMENT -> {
+                "Add Files"
+            }
+        }
+        binding.recyclerView.setOnScrollChangeListener { _, _, scrollY, _, oldScrollY ->
+            if (scrollY > oldScrollY && binding.fabAdd.isExtended) {
+
+                binding.fabAdd.shrink()
+            } else if (scrollY < oldScrollY && !binding.fabAdd.isExtended) {
+
+                binding.fabAdd.extend()
+            }
+        }
         setupRecyclerView()
         checkPermissionsAndLoadFiles()
     }
@@ -56,7 +78,7 @@ abstract class BaseGalleryActivity : AppCompatActivity() {
             ActivityResultContracts.StartIntentSenderForResult()
         ) { result ->
             if (result.resultCode == RESULT_OK) {
-                loadFiles() // Refresh the list after deletion
+                loadFiles()
             }
         }
     }
@@ -103,7 +125,7 @@ abstract class BaseGalleryActivity : AppCompatActivity() {
     abstract fun openPreview()
 
     private fun showPermissionDeniedDialog() {
-        // Show a dialog or a message informing the user about the importance of permissions
+        // permission denied
     }
 
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {

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

@@ -33,11 +33,7 @@ class ImageGalleryActivity : BaseGalleryActivity(), FileProcessCallback  {
         setupFabButton()
 
         intentSenderLauncher = registerForActivityResult(ActivityResultContracts.StartIntentSenderForResult()){
-            if (it.resultCode == RESULT_OK){
+            if (it.resultCode != RESULT_OK) Toast.makeText(this, "Failed to hide/unhide photo", Toast.LENGTH_SHORT).show()
-//                Toast.makeText(this, "Photo Deleted Successfully", Toast.LENGTH_SHORT).show()
-            }else{
-                Toast.makeText(this, "Failed to hide/unhide photo", Toast.LENGTH_SHORT).show()
-            }
         }
 
         pickImageLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
@@ -51,7 +47,7 @@ class ImageGalleryActivity : BaseGalleryActivity(), FileProcessCallback  {
                         uriList.add(uri)
                     }
                 } else {
-                    result.data?.data?.let { uriList.add(it) } // Single file selected
+                    result.data?.data?.let { uriList.add(it) }
                 }
 
                 if (uriList.isNotEmpty()) {

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

@@ -125,6 +125,7 @@ class MainActivity : AppCompatActivity(), DialogActionsCallback {
 
     private fun clearDisplay() {
         currentExpression = "0"
+        binding.total.text = ""
         lastWasOperator = false
         hasDecimal = false
         updateDisplay()
@@ -187,7 +188,30 @@ class MainActivity : AppCompatActivity(), DialogActionsCallback {
 
     private fun updateDisplay() {
         binding.display.text = currentExpression
+
+        if (currentExpression == "0"){
+            binding.total.text = ""
+            return
         }
+        // Evaluate the expression and update total
+        try {
+            val expression = ExpressionBuilder(currentExpression).build()
+            val result = expression.evaluate()
+
+            // Format the result and update total.text
+            val formattedResult = if (result.toLong().toDouble() == result) {
+                result.toLong().toString()
+            } else {
+                String.format("%.2f", result)
+            }
+
+            binding.total.text = formattedResult
+        } catch (e: Exception) {
+            // Show a blank or placeholder for invalid expressions
+            binding.total.text = ""
+        }
+    }
+
     private fun cutNumbers() {
         if (currentExpression.isNotEmpty()){
             if (currentExpression.length == 1){

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

@@ -6,6 +6,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.lifecycleScope
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import devs.org.calculator.adapters.ImagePreviewAdapter
+import devs.org.calculator.callbacks.DialogActionsCallback
 import devs.org.calculator.databinding.ActivityPreviewBinding
 import devs.org.calculator.utils.DialogUtil
 import devs.org.calculator.utils.FileManager
@@ -21,6 +22,7 @@ class PreviewActivity : AppCompatActivity() {
     private lateinit var filetype: FileManager.FileType
     private lateinit var adapter: ImagePreviewAdapter
     private lateinit var fileManager: FileManager
+    private val dialogUtil = DialogUtil(this)
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -62,7 +64,7 @@ class PreviewActivity : AppCompatActivity() {
 
     private fun setupImagePreview() {
         adapter = ImagePreviewAdapter(this, filetype)
-        adapter.images = files // Set initial data
+        adapter.images = files
         binding.viewPager.adapter = adapter
 
         binding.viewPager.setCurrentItem(currentPosition, false)
@@ -75,40 +77,58 @@ class PreviewActivity : AppCompatActivity() {
         binding.delete.setOnClickListener {
             val fileUri = FileManager.FileManager().getContentUriImage(this, files[binding.viewPager.currentItem], filetype)
             if (fileUri != null) {
-                MaterialAlertDialogBuilder(this)
+                dialogUtil.showMaterialDialog(
-                    .setTitle("Delete File")
+                    "Delete File",
-                    .setMessage("Are you sure you want to Delete this file?")
+                    "Are you sure to Delete this file permanently?",
-                    .setPositiveButton("Delete") { dialog, _ ->
+                    "Delete Permanently",
+                    "Cancel",
+                    object : DialogActionsCallback{
+                        override fun onPositiveButtonClicked() {
                             lifecycleScope.launch {
                                 FileManager(this@PreviewActivity, this@PreviewActivity).deletePhotoFromExternalStorage(fileUri)
                                 removeFileFromList(binding.viewPager.currentItem)
                             }
-                        dialog.dismiss()
                         }
-                    .setNegativeButton("Cancel") { dialog, _ ->
+
-                        dialog.dismiss()
+                        override fun onNegativeButtonClicked() {
+
                         }
-                    .show()
+
+                        override fun onNaturalButtonClicked() {
+
+                        }
+
+                    }
+                )
             }
         }
 
         binding.unHide.setOnClickListener {
             val fileUri = FileManager.FileManager().getContentUriImage(this, files[binding.viewPager.currentItem], filetype)
             if (fileUri != null) {
-                MaterialAlertDialogBuilder(this)
+                dialogUtil.showMaterialDialog(
-                    .setTitle("Unhide File")
+                    "Unhide File",
-                    .setMessage("Are you sure you want to Unhide this file?")
+                    "Are you sure you want to Unhide this file?",
-                    .setPositiveButton("Unhide") { dialog, _ ->
+                    "Unhide",
+                    "Cancel",
+                    object : DialogActionsCallback{
+                        override fun onPositiveButtonClicked() {
                             lifecycleScope.launch {
                                 FileManager(this@PreviewActivity, this@PreviewActivity).copyFileToNormalDir(fileUri)
                                 removeFileFromList(binding.viewPager.currentItem)
                             }
-                        dialog.dismiss()
                         }
-                    .setNegativeButton("Cancel") { dialog, _ ->
+
-                        dialog.dismiss()
+                        override fun onNegativeButtonClicked() {
+
                         }
-                    .show()
+
+                        override fun onNaturalButtonClicked() {
+
+                        }
+
+                    }
+                )
             }
         }
     }

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

@@ -11,17 +11,33 @@ import com.google.android.material.textfield.TextInputEditText
 import devs.org.calculator.databinding.ActivitySetupPasswordBinding
 import devs.org.calculator.utils.PrefsUtil
 import devs.org.calculator.R
+import devs.org.calculator.databinding.ActivityChangePasswordBinding
 
 class SetupPasswordActivity : AppCompatActivity() {
     private lateinit var binding: ActivitySetupPasswordBinding
+    private lateinit var binding2: ActivityChangePasswordBinding
     private lateinit var prefsUtil: PrefsUtil
+    private var hasPassword = false
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = ActivitySetupPasswordBinding.inflate(layoutInflater)
+        binding2 = ActivityChangePasswordBinding.inflate(layoutInflater)
         setContentView(binding.root)
-        prefsUtil = PrefsUtil(this)
 
+        prefsUtil = PrefsUtil(this)
+        hasPassword = prefsUtil.hasPassword()
+
+        if (hasPassword){
+            setContentView(binding2.root)
+        }else{
+            setContentView(binding.root)
+        }
+        clickListeners()
+
+    }
+
+    private fun clickListeners(){
         binding.btnSavePassword.setOnClickListener {
             val password = binding.etPassword.text.toString()
             val confirmPassword = binding.etConfirmPassword.text.toString()
@@ -62,7 +78,38 @@ class SetupPasswordActivity : AppCompatActivity() {
             else Toast.makeText(this, "Security question not set yet.", Toast.LENGTH_SHORT).show()
 
         }
+        binding2.btnChangePassword.setOnClickListener{
+            val oldPassword = binding2.etOldPassword.text.toString()
+            val newPassword = binding2.etNewPassword.text.toString()
+            if (oldPassword.isEmpty()) {
+                binding2.etOldPassword.error = "This field can't be empty"
+                return@setOnClickListener
+            }
+            if (newPassword.isEmpty()) {
+                binding2.etNewPassword.error = "This field can't be empty"
+                return@setOnClickListener
+            }
 
+            if (prefsUtil.validatePassword(oldPassword)){
+                if (oldPassword != newPassword){
+                    prefsUtil.savePassword(newPassword)
+                    Toast.makeText(this, "Password reset successfully", Toast.LENGTH_SHORT).show()
+                    startActivity(Intent(this, MainActivity::class.java))
+                    finish()
+
+                }else {
+                    Toast.makeText(this, "Old Password And New Password Not Be Same", Toast.LENGTH_SHORT).show()
+                    binding2.etNewPassword.error = "Old Password And New Password Not Be Same"
+                }
+            }else {
+                Toast.makeText(this, "Wrong password entered", Toast.LENGTH_SHORT).show()
+                binding2.etOldPassword.error = "Old Password Not Matching"
+            }
+        }
+        binding2.btnResetPassword.setOnClickListener{
+            if (prefsUtil.getSecurityQuestion() != null) showSecurityQuestionDialog(prefsUtil.getSecurityQuestion().toString())
+            else Toast.makeText(this, "Security question not set yet.", Toast.LENGTH_SHORT).show()
+        }
     }
 
     private fun showSecurityQuestionDialog(securityQuestion: String) {
@@ -71,6 +118,7 @@ class SetupPasswordActivity : AppCompatActivity() {
         val questionTextView: TextView = dialogView.findViewById(R.id.security_question)
         questionTextView.text = securityQuestion
 
+
         MaterialAlertDialogBuilder(this)
             .setTitle("Answer the Security Question!")
             .setView(dialogView)

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

@@ -16,6 +16,8 @@ import com.bumptech.glide.Glide
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import devs.org.calculator.R
 import devs.org.calculator.activities.PreviewActivity
+import devs.org.calculator.callbacks.DialogActionsCallback
+import devs.org.calculator.utils.DialogUtil
 import devs.org.calculator.utils.FileManager
 import kotlinx.coroutines.launch
 import java.io.File
@@ -30,6 +32,23 @@ class FileAdapter(
     private val selectedItems = mutableSetOf<Int>()
     private var isSelectionMode = false
     private var fileName = "Unknown File"
+    private var fileTypes = when (fileType) {
+
+        FileManager.FileType.IMAGE -> {
+            "IMAGE"
+        }
+
+        FileManager.FileType.VIDEO -> {
+            "VIDEO"
+        }
+
+        FileManager.FileType.AUDIO -> {
+            "AUDIO"
+        }
+
+        else -> "DOCUMENT"
+
+    }
 
     inner class FileViewHolder(view: View) : RecyclerView.ViewHolder(view) {
         private val imageView: ImageView = view.findViewById(R.id.imageView)
@@ -63,24 +82,6 @@ class FileAdapter(
             }
             itemView.setOnClickListener {
 
-
-                var fileTypes = when (fileType) {
-
-                    FileManager.FileType.IMAGE -> {
-                        "IMAGE"
-                    }
-
-                    FileManager.FileType.VIDEO -> {
-                        "VIDEO"
-                    }
-
-                    FileManager.FileType.AUDIO -> {
-                        "AUDIO"
-                    }
-
-                    else -> "DOCUMENT"
-
-                }
                 val intent = Intent(context, PreviewActivity::class.java).apply {
                     putExtra("type", fileTypes)
                     putExtra("position", position)
@@ -101,11 +102,14 @@ class FileAdapter(
                 fileName = FileManager.FileName(context).getFileNameFromUri(fileUri)?.toString()
                     ?: "Unknown File"
 
-
+                DialogUtil(context).showMaterialDialogWithNaturalButton(
-                MaterialAlertDialogBuilder(context)
+                    "$fileTypes DETAILS",
-                    .setTitle("Details")
+                    "File Name: $fileName\n\nFile Path: $file\n\nYou can permanently delete or unhide this file.",
-                    .setMessage("File Name: $fileName\n\nFile Path: $file\n\nYou can delete or unhide this file.")
+                    "Delete Permanently",
-                    .setPositiveButton("Delete") { dialog, _ ->
+                    "Unhide",
+                    "Cancel",
+                    object : DialogActionsCallback {
+                        override fun onPositiveButtonClicked() {
                             lifecycleOwner.lifecycleScope.launch {
                                 FileManager(context, lifecycleOwner).deletePhotoFromExternalStorage(
                                     fileUri
@@ -114,16 +118,20 @@ class FileAdapter(
                             val currentList = currentList.toMutableList()
                             currentList.remove(file)
                             submitList(currentList)
-                        dialog.dismiss()
                         }
-                    .setNegativeButton("Unhide") { dialog, _ ->
+
+                        override fun onNegativeButtonClicked() {
                             FileManager(context, lifecycleOwner).copyFileToNormalDir(fileUri)
                             val currentList = currentList.toMutableList()
                             currentList.remove(file)
                             submitList(currentList)
-                        dialog.dismiss()
                         }
-                    .show()
+
+                        override fun onNaturalButtonClicked() {
+
+                        }
+                    }
+                )
 
                 return@setOnLongClickListener true
             }
@@ -145,12 +153,10 @@ class FileAdapter(
 
     class FileDiffCallback : DiffUtil.ItemCallback<File>() {
         override fun areItemsTheSame(oldItem: File, newItem: File): Boolean {
-            // Compare based on file path or another unique identifier
             return oldItem.path == newItem.path
         }
 
         override fun areContentsTheSame(oldItem: File, newItem: File): Boolean {
-            // Compare the content of files if needed
             return oldItem == newItem
         }
     }

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

@@ -5,12 +5,15 @@ import android.content.Context
 import android.net.Uri
 import android.os.Build
 import android.provider.MediaStore
+import android.view.View
 import android.widget.Toast
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.IntentSenderRequest
 import androidx.documentfile.provider.DocumentFile
 import androidx.lifecycle.LifecycleOwner
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import com.google.android.material.textfield.TextInputEditText
+import devs.org.calculator.R
 import devs.org.calculator.callbacks.DialogActionsCallback
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext

app/src/main/res/drawable/plus.xml

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:viewportHeight="20" android:viewportWidth="20" android:width="24dp">
+      
+    <path android:fillColor="@color/textColor" android:fillType="evenOdd" android:pathData="M9,17a1,1 0,1 0,2 0v-6h6a1,1 0,1 0,0 -2h-6V3a1,1 0,1 0,-2 0v6H3a1,1 0,0 0,0 2h6v6z"/>
+    
+</vector>

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

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    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
+        android:id="@+id/tvTitle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Change 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/tilOldPassword"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="32dp"
+        android:hint="Enter Old Password"
+        app:endIconMode="password_toggle"
+        app:layout_constraintTop_toBottomOf="@id/tvTitle">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/etOldPassword"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:imeOptions="actionNext"
+            android:singleLine="true"
+            android:inputType="number" />
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:id="@+id/tilNewPassword"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:hint="Enter New Password"
+        app:endIconMode="password_toggle"
+        app:layout_constraintTop_toBottomOf="@id/tilOldPassword">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/etNewPassword"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:imeOptions="actionNext"
+            android:singleLine="true"
+            android:inputType="number" />
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <com.google.android.material.button.MaterialButton
+        android:id="@+id/btnChangePassword"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="32dp"
+        android:padding="12dp"
+        android:text="Change Password"
+        app:layout_constraintTop_toBottomOf="@id/tilNewPassword" />
+
+    <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="Forgot Password?"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/btnChangePassword" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -3,6 +3,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
+
     android:layout_height="match_parent">
 
     <androidx.recyclerview.widget.RecyclerView
@@ -11,14 +12,28 @@
         android:layout_height="match_parent"
         android:padding="8dp" />
 
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
+<!--    <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton-->
+<!--        android:id="@+id/fabAdd"-->
+<!--        android:layout_width="wrap_content"-->
+<!--        android:layout_height="wrap_content"-->
+<!--        android:layout_gravity="bottom|end"-->
+<!--        android:layout_margin="16dp"-->
+<!--        android:contentDescription="Compose"-->
+<!--        android:icon="@drawable/plus"-->
+<!--        android:text="Add File"-->
+<!--        app:elevation="6dp"/>-->
+
+    <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
         android:id="@+id/fabAdd"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="bottom|end"
         android:layout_marginEnd="25dp"
         android:layout_marginBottom="35dp"
-        android:contentDescription="Add file"
+        android:contentDescription="Compose"
-        android:src="@android:drawable/ic_input_add" />
+        app:iconPadding="8dp"
+        app:icon="@android:drawable/ic_input_add"
+        android:text="Add file"/>
+
 
 </androidx.coordinatorlayout.widget.CoordinatorLayout> 

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

@@ -13,8 +13,8 @@
 
     <com.google.android.material.floatingactionbutton.FloatingActionButton
         android:id="@+id/fabAdd"
-        android:layout_width="wrap_content"
+        android:layout_width="60dp"
-        android:layout_height="wrap_content"
+        android:layout_height="60dp"
         android:layout_gravity="bottom|end"
         android:layout_marginEnd="25dp"
         android:layout_marginBottom="35dp"

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

@@ -9,14 +9,19 @@
     tools:context=".activities.MainActivity">
 
     <!-- Calculator Display -->
-    <TextView
+    <LinearLayout
-        android:id="@+id/display"
         android:layout_width="match_parent"
         android:layout_height="160dp"
         android:layout_margin="16dp"
         android:layout_weight="3"
         android:layout_marginTop="0dp"
         android:elevation="4dp"
+        android:orientation="vertical"
+        android:gravity="right|bottom">
+        <TextView
+            android:id="@+id/display"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
             android:gravity="end|bottom"
             android:padding="10dp"
             android:text="0"
@@ -27,6 +32,23 @@
             android:autoSizeStepGranularity="2sp"
             tools:ignore="Suspicious0dp" />
 
+        <TextView
+            android:id="@+id/total"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="end|bottom"
+            android:paddingRight="10dp"
+            android:paddingBottom="10dp"
+            android:text=""
+            android:textSize="26sp"
+            android:autoSizeTextType="uniform"
+            android:autoSizeMinTextSize="20sp"
+            android:autoSizeMaxTextSize="48sp"
+            android:autoSizeStepGranularity="2sp"
+            tools:ignore="Suspicious0dp" />
+    </LinearLayout>
+
+
 
 
 

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@mipmap/ic_launcher_background"/>
+    <background android:drawable="@color/ic_launcher_background"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
     <monochrome android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@mipmap/ic_launcher_background"/>
+    <background android:drawable="@color/ic_launcher_background"/>
     <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
     <monochrome android:drawable="@mipmap/ic_launcher_foreground"/>
 </adaptive-icon>

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

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#3DDC84</color>
+</resources>