SwipeRefreshLayout下拉刷新沖突解決

使用SwipeRefreshLayout，網上資料copy了一個OnScrollListener給ListView，

結果當第一個item長度超過一屏，明明還沒有到達列表頂部，Scroll事件就被攔截，列表無法滾動，同時啟動了刷新。

修正代碼后，自定義的OnScrollListener如下：

/* 由于Listview與下拉刷新的Scroll事件沖突, 使用這個ScrollListener可以避免Listview滑動異常 /
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);

    // 當firstVisibleItem是第0位。如果firstView==null說明列表為空，需要刷新;或者top==0說明已經到達列表頂部, 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);
    }
}

}</pre>