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    private void permission() {
        if ((ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_MEDIA_AUDIO) != PackageManager.PERMISSION_GRANTED) ||
                (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_MEDIA_VIDEO) != PackageManager.PERMISSION_GRANTED) ||
                (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_MEDIA_IMAGES) != PackageManager.PERMISSION_GRANTED) ||
                (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) ||
                (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.MANAGE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) ||
                (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)) {

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
                ActivityCompat.requestPermissions(MainActivity.this,
                        new String[]{
                                Manifest.permission.MANAGE_EXTERNAL_STORAGE,
                                Manifest.permission.READ_MEDIA_AUDIO,
                                Manifest.permission.READ_MEDIA_IMAGES,
                                Manifest.permission.READ_MEDIA_VIDEO
                        }, 1);
                if (!Environment.isExternalStorageManager()) {
                    Intent intent = new Intent(Settings.ACTION_MANAGE_ALL_FILES_ACCESS_PERMISSION);
                    startActivity(intent);
                }


            } else {
                ActivityCompat.requestPermissions(MainActivity.this,
                        new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,
                                Manifest.permission.WRITE_EXTERNAL_STORAGE}, 2);
            }

        } else {

        }
    }


    /*Handle permission request results*/
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 1) {
            boolean allPermissionsGranted = true;

            for (int grantResult : grantResults) {
                if (grantResult != PackageManager.PERMISSION_GRANTED) {
                    allPermissionsGranted = false;
                    break;
                }
            }

            if (allPermissionsGranted) {
            } else {
                showPermissionRequiredDialog();
            }
        }
    }