Share sheet previews (AND-139)

mastodon/src/main/java/org/joinmastodon/android/TweakedFileProvider.java

@@ -0,0 +1,38 @@
+package org.joinmastodon.android;
+
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.ParcelFileDescriptor;
+import android.util.Log;
+
+import java.io.FileNotFoundException;
+import java.util.Arrays;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+public class TweakedFileProvider extends FileProvider{
+	private static final String TAG="TweakedFileProvider";
+
+	@Override
+	public String getType(@NonNull Uri uri){
+		Log.d(TAG, "getType() called with: uri = ["+uri+"]");
+		if(uri.getPathSegments().get(0).equals("image_cache")){
+			Log.i(TAG, "getType: HERE!");
+			return "image/jpeg"; // might as well be a png but image decoding APIs don't care, needs to be image/* though
+		}
+		return super.getType(uri);
+	}
+
+	@Override
+	public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder){
+		Log.d(TAG, "query() called with: uri = ["+uri+"], projection = ["+Arrays.toString(projection)+"], selection = ["+selection+"], selectionArgs = ["+Arrays.toString(selectionArgs)+"], sortOrder = ["+sortOrder+"]");
+		return super.query(uri, projection, selection, selectionArgs, sortOrder);
+	}
+
+	@Override
+	public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException{
+		Log.d(TAG, "openFile() called with: uri = ["+uri+"], mode = ["+mode+"]");
+		return super.openFile(uri, mode);
+	}
+}