fix pendingIntent

Signed-off-by: tobiasKaminsky <[email protected]>

Author: tobiasKaminsky

app/src/main/java/it/niedermann/owncloud/notes/shared/util/WidgetUtil.java

@@ -28,6 +28,9 @@ private WidgetUtil() {
      * @return {@param flags} | {@link PendingIntent#FLAG_MUTABLE}
      */
     public static int pendingIntentFlagCompat(int flags) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+            return flags | PendingIntent.FLAG_IMMUTABLE;
+        }
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
             return flags | PendingIntent.FLAG_MUTABLE;
         }