Fix case where measure is called with a view that is now off screen (and removed from clipping)

Reviewed By: astreet

Differential Revision: D2760119

fb-gh-sync-id: cf2723ddc94de64bba961e9390ce54f39ca4651f

ReactAndroid/src/main/java/com/facebook/react/uimanager/NativeViewHierarchyManager.java

@@ -467,6 +467,11 @@ public class NativeViewHierarchyManager {
     }
 
     View rootView = (View) RootViewUtil.getRootView(v);
+    // It is possible that the RootView can't be found because this view is no longer on the screen
+    // and has been removed by clipping
+    if (rootView == null) {
+      throw new NoSuchNativeViewException("Native view " + tag + " is no longer on screen");
+    }
     rootView.getLocationInWindow(outputBuffer);
     int rootX = outputBuffer[0];
     int rootY = outputBuffer[1];

ReactAndroid/src/main/java/com/facebook/react/uimanager/RootViewUtil.java

@@ -26,7 +26,9 @@ public class RootViewUtil {
         return (RootView) current;
       }
       ViewParent next = current.getParent();
-      Assertions.assertNotNull(next);
+      if (next == null) {
+        return null;
+      }
       Assertions.assertCondition(next instanceof View);
       current = (View) next;
     }