如何在滚动时显示视图并在Android中停止滚动后隐藏视图

Question

我有一个线性布局视图，在布局的底部带有一些按钮。布局包含许多元素，因此我添加了scrollview以显示所有内容。

现在，当我向上或向下滚动时，我想隐藏我的底部线性布局内容，并且当用户停止滚动列表视图时，我想再次显示它。

谁能建议我一些解决方案来实现这一目标。 任何帮助都是适当的谢谢

Answer 1

您可以尝试实现ScrollView OnScrollListener 。 它有一个方法：

        /**
         * Callback method to be invoked while the list view or grid view is being scrolled. If the
         * view is being scrolled, this method will be called before the next frame of the scroll is
         * rendered. In particular, it will be called before any calls to
         * {@link Adapter#getView(int, View, ViewGroup)}.
         *
         * @param view The view whose scroll state is being reported
         *
         * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE},
         * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}.
         */
        public void onScrollStateChanged(AbsListView view, int scrollState);

滚动状态更改时，可以将setVisibility()设置为要显示/隐藏的Button 。