Fix sample app

Author: adimiz1

ui/src/main/java/com/cloudinary/android/uploadwidget/UploadWidget.java

@@ -125,7 +125,7 @@ public static UploadRequest preprocessResult(Context context, @NonNull UploadReq
      * @param requestCode A request code to start the native android picker with.
      */
     public static void openMediaChooser(Activity activity, int requestCode) {
-        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+        Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
         intent.addCategory(Intent.CATEGORY_OPENABLE);
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
             intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);

ui/src/main/java/com/cloudinary/android/uploadwidget/ui/UploadWidgetActivity.java

@@ -72,7 +72,7 @@ protected void onActivityResult(int requestCode, int resultCode, @Nullable Inten
                 ArrayList<Uri> uris = extractImageUris(data);
 
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
-                    final int takeFlags = data.getFlags() & (Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION);
+                    final int takeFlags = data.getFlags() & (Intent.FLAG_GRANT_READ_URI_PERMISSION);
                     for (Uri uri : uris) {
                         if (DocumentsContract.isDocumentUri(this, uri)) {
                             getContentResolver().takePersistableUriPermission(uri, takeFlags);