android - Detecting overscroll in NestedScrollView -


i want vertical overscroll in nestedscrollview trigger 1 of methods, displays contentloadingprogressbar while retrieving data device.

the swiperefreshlayout widget not app , there not seem way of customizing actual animation (see this question).

i have tried subclassing nestedscrollview , overriding onoverscrolled:

@override public void onoverscrolled(int scrollx, int scrolly, boolean clampedx, boolean clampedy) {   super.onoverscrolled(scrollx, scrolly, clampedx, clampedy);    if (clampedy && scrolly == 0) {     log.d("mynestedscrollview", "top overscroll detected");     // mytopoverscrollmethod();   } else if (clampedy && scrolly > 0) {     log.d("mynestedscrollview", "bottom overscroll detected");     // mybottomoverscrollmethod();   } }

however, logging messages printed 5-10 times per overscroll since gesture not instantaneous , takes while complete.

i looking way of recognizing overscroll gesture in order display contentloadingprogressbar indicate data being refreshed.

is there nice, clean way of doing this? or need deal fact onoverscrolled called multiple times?


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