SwipeRefreshLayout下拉刷新冲突解决

最新推荐文章于 2023-10-09 14:30:42 发布

转载最新推荐文章于 2023-10-09 14:30:42 发布 · 692 阅读

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本文介绍了一种解决ListView与下拉刷新组件Scroll事件冲突的方法，通过自定义监听器SwipeListViewOnScrollListener，确保在ListView滚动时下拉刷新功能正常工作。

/** 由于Listview与下拉刷新的Scroll事件冲突, 使用这个ScrollListener可以避免Listview滑动异常 */
public static class SwpipeListViewOnScrollListener implements AbsListView.OnScrollListener {
 
    private SwipeRefreshLayout mSwipeView;
    private AbsListView.OnScrollListener mOnScrollListener;
 
    public SwpipeListViewOnScrollListener(SwipeRefreshLayout swipeView) {
        mSwipeView = swipeView;
    }
 
    public SwpipeListViewOnScrollListener(SwipeRefreshLayout swipeView,
            OnScrollListener onScrollListener) {
        mSwipeView = swipeView;
        mOnScrollListener = onScrollListener;
    }
 
    @Override
    public void onScrollStateChanged(AbsListView absListView, int i) {
    }
 
    @Override
    public void onScroll(AbsListView absListView, int firstVisibleItem,
                         int visibleItemCount, int totalItemCount) {
        View firstView = absListView.getChildAt(firstVisibleItem);
 
        // 当firstVisibleItem是第0位。如果firstView==null说明列表为空，需要刷新;或者top==0说明已经到达列表顶部, 也需要刷新
        if (firstVisibleItem == 0 && (firstView == null || firstView.getTop() == 0)) {
            mSwipeView.setEnabled(true);
        } else {
            mSwipeView.setEnabled(false);
        }
        if (null != mOnScrollListener) {
            mOnScrollListener.onScroll(absListView, firstVisibleItem,
                    visibleItemCount, totalItemCount);
        }
    }
}