Unregister ZoomLayout's OnGlobalLayoutListener about zoomlayout

[dmazzoni]

Yes, I'll probably be able to open it tomorrow

[natario1]

Yes, we want to keep listening to changes in child, not just the first time.

It's not clear to me where the leak is... I thought ViewTreeObserver would die with the view.
You could unregister the listener during removeView, but I don't know if that's called in your case. Is it?

[dmazzoni]

Thanks for your feedback!
No, in my case removeView is not called, so I can't unregister the listener there.

[dmazzoni]

Anyway, regardless of its cause, the leak may be prevented by turning the anonymous layout listener into a static nested class which holds weak references to mEngine, mChildRect and the view being added.

[markusressel]

@dmazzoni Since you have already done a lot of work on this are you interested in opening a PR for this?