Fix crash if Shared Element ID is invalid (#6511)

Fixes a hard-crash on iOS if the specified Shared Element ID could not be found/invalid nativeID has been set Co-authored-by: Yogev Ben David <yogev132@gmail.com>
wix · Sep 1, 2020 · fcf23d2 · fcf23d2
1 parent 0869fd0
commit fcf23d2
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/ios/SharedElementTransitionsCreator.m b/lib/ios/SharedElementTransitionsCreator.m
@@ -16,6 +16,10 @@ @implementation SharedElementTransitionsCreator
     for (SharedElementTransitionOptions* transitionOptions in sharedElementTransitions) {
         UIView *fromView = [RNNElementFinder findElementForId:transitionOptions.fromId inView:fromVC.reactView];
         UIView *toView = [RNNElementFinder findElementForId:transitionOptions.toId inView:toVC.reactView];
+        if (fromView == nil || toView == nil) {
+            break;
+        }
+
         SharedElementAnimator* sharedElementAnimator = [[SharedElementAnimator alloc] initWithTransitionOptions:transitionOptions
                                                                                                        fromView:fromView
                                                                                                          toView:toView