androidx.recyclerview.widget.RecyclerView#isEnabled ( )源码实例Demo

@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
    super.onScrollStateChanged(recyclerView, newState);

    if (recyclerView.isEnabled()) {
        switch (newState) {
            case RecyclerView.SCROLL_STATE_DRAGGING:
                handler.removeCallbacks(mScrollbarHider);
                if (mScrollbar.getVisibility() != View.VISIBLE) {
                    Utility.cancelAnimation(mScrollbarAnimator);
                    if (!Utility.isViewVisible(mScrollbar) && (recyclerView.computeVerticalScrollRange()
                            - mViewHeight > 0)) {

                        mScrollbarAnimator = Utility.showScrollbar(mScrollbar, Pix.this);
                    }
                }
                break;
            case RecyclerView.SCROLL_STATE_IDLE:
                if (mHideScrollbar && !mHandleView.isSelected()) {
                    handler.postDelayed(mScrollbarHider, sScrollbarHideDelay);
                }
                break;
            default:
                break;
        }
    }
}
 

@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
    if (!mHandleView.isSelected() && recyclerView.isEnabled()) {
        setViewPositions(getScrollProportion(recyclerView));
    }
}