How to forget the “Never ask again” choice in Android M runtime permission dialog

Question

I wish to know where the \"Never ask again\" checkbox boolean flag is stored and how to clear its value? Not necessarily programmatically, but manually - via settin

Answer 1

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    boolean dontAsk = false;
    if (requestCode == REQUEST_CAM_STORAGE_PERMISSION) {
        for (String allowedPermissions : permissions) {
            if (ActivityCompat.shouldShowRequestPermissionRationale(context, allowedPermissions)) {
                Log.e("Permission: ", "User Has Denied Permission");
            } else if (PermissionChecker.checkCallingOrSelfPermission(context, allowedPermissions) != PackageManager.PERMISSION_GRANTED) {
                Log.e("Permission: ", "User Has Denied Permission with Don't Ask Again");
                dontAsk = true;
                break;
            } else {
                Log.e("Permission: ", "User Has Allowed Permission");
            }
        }

        if (!dontAsk) {
            Log.e("Permission: ", "Dont'Ask False");
            checkPermission();
        } else {
            Log.e("Permission: ", "Dont'Ask True");
            startActivity(new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, Uri.parse("package:" + this.getPackageName())));
        }
    }
}