Question

With java and android programming. Imagine you have an unresponsive user interface. How would you go about

troubleshooting it?

Answer 1

Solution :

When the user interface is unresponsive , following steps need to be taken :

1. The problem could be overdraw that is you waste GPU processing time by coloring some pixels however that can be done on the later stage by something else. Although you can't remove all the overdraw but we can minimize some of the overdraws if possible.

Detect overdraw : we can detect the overdraw by the app only , go to setting , developer's branch and click on show overdraw areas.

Once you identify those areas you can minimize them easily.

2. The other problem could be memory leaks.Garbage collection only removes objects that looks unreachable but what if the object does not look as unreachable.

Detect memory leaks to solve the issue.