Writing files to publicly accessible documents folder in Android Q - Scoped Storage

Question

Background

After migrating to Android Q I can no longer find a suitable way to gain write access to the documents folder (/storage/emulated/0/Documents

Answer 1

For Android Q only.

String collection = "content://media/1c11-2404/file"; // One can even write to micro SD card
String relative_path = "Documents/MyFolder";

Uri collectionUri = Uri.parse(collection);

ContentValues contentValues = new ContentValues();

contentValues.put(MediaStore.MediaColumns.DISPLAY_NAME, displayName);
contentValues.put(MediaStore.MediaColumns.MIME_TYPE, mimeType);
contentValues.put(MediaStore.MediaColumns.SIZE, filesize);
contentValues.put(MediaStore.MediaColumns.DATE_MODIFIED, modified );
contentValues.put(MediaStore.MediaColumns.RELATIVE_PATH, relative_path);
contentValues.put(MediaStore.MediaColumns.IS_PENDING, 1)

Uri fileUri = context.getContentResolver().insert(collectionUri, contentValues);

Having an uri one can open an output stream to write the content for the file.

Answer 2

try to put this line in your manifest file for android Q: android:requestLegacyExternalStorage="true" in application tag.