How to get Access to External Storage in Android 10 (Android Q)?

Question

I just migrated my sourcecode to Androidx, since I did that my share function to share a sound is no longer working. the Logcat says:

Failed to save file: /s         


        

Answer 1

I have been stuck for a long time and this worked fine for me

  StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
    StrictMode.setVmPolicy(builder.build());
    File = new File(filepath);

and don't forget to request legacy Storage in manifest file.

  <application android:requestLegacyExternalStorage="true" >

Answer 2

If you target Android 10 or higher, set the value of requestLegacyExternalStorage to true in your app's manifest file:

<manifest ... >
  <!-- This attribute is "false" by default on apps targeting
       Android 10 or higher. -->
  <application android:requestLegacyExternalStorage="true" ... >
    ...
  </application>
</manifest>

Access files

To load media files, call one of the following methods from ContentResolver:

 Uri contentUri = ContentUris.withAppendedId(
        MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
        cursor.getLong(Integer.parseInt(BaseColumns._ID)));
String fileOpenMode = "r";
ParcelFileDescriptor parcelFd = resolver.openFileDescriptor(uri, fileOpenMode);
if (parcelFd != null) {
    int fd = parcelFd.detachFd();
    // Pass the integer value "fd" into your native code. Remember to call
    // close(2) on the file descriptor when you're done using it.
}

On devices running Android 10 (API level 29) and higher, your app can get exclusive access to a media file as it's written to disk by using the IS_PENDING flag.

ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.DISPLAY_NAME, "IMG1024.JPG");
values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
values.put(MediaStore.Images.Media.IS_PENDING, 1);

ContentResolver resolver = context.getContentResolver();
Uri collection = MediaStore.Images.Media.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY);
Uri item = resolver.insert(collection, values);

try (ParcelFileDescriptor pfd = resolver.openFileDescriptor(item, "w", null)) {
    // Write data into the pending image.
} catch (IOException e) {
    e.printStackTrace();
}

// Now that we're finished, release the "pending" status, and allow other apps
// to view the image.
values.clear();
values.put(MediaStore.Images.Media.IS_PENDING, 0);
resolver.update(item, values, null, null);