以编程方式滚动到NestedScrollView的顶部 [英] Programmatically scroll to the top of a NestedScrollView

问题描述

有没有一种方法可以通过触发父级的滚动事件来以编程方式滚动到NestedScrollView的顶部? smoothScrollTo(x, y)不会将滚动事件委托给NestedScrollingParent.

Is there a way to programmatically scroll to the top of a NestedScrollView by also triggering the scroll events for the parent? smoothScrollTo(x, y) doesn't delegate the scroll events to the NestedScrollingParent.

推荐答案

我设法做到了(动画滚动):

I managed to do it (animated scrolling):

CoordinatorLayout.LayoutParams params = (CoordinatorLayout.LayoutParams) appBarLayout.getLayoutParams();
AppBarLayout.Behavior behavior = (AppBarLayout.Behavior) params.getBehavior();
if (behavior != null) {
    behavior.onNestedFling(coordinatorLayout, appBarLayout, null, 0, 10000, true);
}

其中10000是y方向的速度.

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