ShineM Zhong

ObservableWebView has call NestedScrollView.onInterceptTouchEvent(event) in onTouchEvent and then NestedScrollView's mLastMotionY will changed to Y coordinate value of this event's,but this value maybe is bigger than NestedScrollView's max height(when scrolled the...

When using `RecyclerView.canScrollVertically()` , the first item is not completely visible but it still return false. Refer to the code from `LinearLayoutManager` ，use `findFirstCompletelyVisibleItemPosition` and `findLastCompletelyVisibleItemPosition` is the effective way...