使用: public class CustomBehavior extends AppBarLayout.Behavior { private OverScroller mScroller; public CustomBehavior() { } public CustomBehavior(Context context, AttributeSet attrs) { super(context, attrs); getParentScroller(context); } /** * 反射获得滑动属性。 * * @param context */ private void getParentScroller(Context context) { if (mScroller != null) return; mScroller = new OverScroller(context); try { Class<?> reflex_class = getClass().getSuperclass().getSuperclass();//父类AppBarLayout.Behavior父类的父类HeaderBehavior Field fieldScroller = reflex_class.getDeclaredField("mScroller"); fieldScroller.setAccessible(true); fieldScroller.set(this, mScroller); } catch (Exception e) { } } //fling上滑appbar然后迅速fling下滑recycler时, HeaderBehavior的mScroller并未停止, 会导致上下来回晃动 @Override public void onNestedPreScroll(CoordinatorLayout coordinatorLayout, AppBarLayout child, View target, int dx, int dy, int[] consumed, int type) { if (mScroller != null) { //当recyclerView 做好滑动准备的时候 直接干掉Appbar的滑动 if (mScroller.computeScrollOffset()) { mScroller.abortAnimation(); } } if (type == ViewCompat.TYPE_NON_TOUCH && getTopAndBottomOffset() == 0) { //recyclerview的惯性比较大 ,会顶在头部一会儿, 到头直接干掉它的滑动 ViewCompat.stopNestedScroll(target, type); } super.onNestedPreScroll(coordinatorLayout, child, target, dx, dy, consumed, type); } @Override public boolean onTouchEvent(CoordinatorLayout parent, AppBarLayout child, MotionEvent e) { switch (e.getActionMasked()) { case MotionEvent.ACTION_DOWN: break; } return super.onTouchEvent(parent, child, e); } }