Activities cannot draw during the period that their windows are animating in.
Syntax
[Android.Runtime.Register("onEnterAnimationComplete", "()V", "GetOnEnterAnimationCompleteHandler")] public virtual voidOnEnterAnimationComplete ()
Remarks
Activities cannot draw during the period that their windows are animating in. In order
to know when it is safe to begin drawing they can override this method which will be
called when the entering animation has completed.