原文:http://my.oschina.net/djone/blog/408110
使用SwipeRefreshLayout,网上资料copy了一个OnScrollListener给ListView,

结果当第一个item长度超过一屏,明明还没有到达列表顶部,Scroll事件就被拦截,列表无法滚动,同时启动了刷新。
修正代码后,自定义的OnScrollListener如下:

/** 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);
}
}
}

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