1. Add the following example Navigation Window code into app.js.
2. Run the app.
3. Once app open, DO NOT click the button.
4. First of all, swipe to the right from the edge of the left screen (sometimes maybe do it twice).
5. Then click the button.
You will notice the screen is frozen, and app stop working.
1. if you put the app in background, and re-open it, it will back to work.
2. I tested app on different SDK versions, It happens on SDK 5.3.1 and 5.2.2. And no such problem on SDK 5.1.1