+ @Override
+ public void onCloseDownloadLocationPermissionDialog(int downloadType) {
+ switch (downloadType) {
+ case DownloadLocationPermissionDialog.DOWNLOAD_FILE:
+ // Request the WRITE_EXTERNAL_STORAGE permission with a file request code.
+ ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_FILE_REQUEST_CODE);
+ break;
+
+ case DownloadLocationPermissionDialog.DOWNLOAD_IMAGE:
+ // Request the WRITE_EXTERNAL_STORAGE permission with an image request code.
+ ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_IMAGE_REQUEST_CODE);
+ break;
+ }
+ }
+
+ @Override
+ public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
+ switch (requestCode) {
+ case DOWNLOAD_FILE_REQUEST_CODE:
+ // Show the download file alert dialog. When the dialog closes, the correct command will be used based on the permission status.
+ AppCompatDialogFragment downloadFileDialogFragment = DownloadFileDialog.fromUrl(downloadUrl, downloadContentDisposition, downloadContentLength);
+
+ // On API 23, displaying the fragment must be delayed or the app will crash.
+ if (Build.VERSION.SDK_INT == 23) {
+ new Handler().postDelayed(() -> downloadFileDialogFragment.show(getSupportFragmentManager(), getString(R.string.download)), 500);
+ } else {
+ downloadFileDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+ }
+
+ // Reset the download variables.
+ downloadUrl = "";
+ downloadContentDisposition = "";
+ downloadContentLength = 0;
+ break;
+
+ case DOWNLOAD_IMAGE_REQUEST_CODE:
+ // Show the download image alert dialog. When the dialog closes, the correct command will be used based on the permission status.
+ AppCompatDialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(downloadImageUrl);
+
+ // On API 23, displaying the fragment must be delayed or the app will crash.
+ if (Build.VERSION.SDK_INT == 23) {
+ new Handler().postDelayed(() -> downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download)), 500);
+ } else {
+ downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+ }
+
+ // Reset the image URL variable.
+ downloadImageUrl = "";
+ break;
+ }
+ }
+