[android] - harden mapZoomButtonController to avoid null pointer exceptions (#8332)

1 files changed, 4 insertions, 2 deletions

diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java
index 8fa2d0b152..ac6c15f671 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java
@@ -521,13 +521,15 @@ public class MapView extends FrameLayout {
   @CallSuper
   protected void onDetachedFromWindow() {
     super.onDetachedFromWindow();
-    mapZoomButtonController.setVisible(false);
+    if (mapZoomButtonController != null) {
+      mapZoomButtonController.setVisible(false);
+    }
   }
 
   // Called when view is hidden and shown
   @Override
   protected void onVisibilityChanged(@NonNull View changedView, int visibility) {
-    if (isInEditMode()) {
+    if (isInEditMode() || mapZoomButtonController == null) {
       return;
     }
     mapZoomButtonController.setVisible(visibility == View.VISIBLE);