在滚动列表视图中使用“拉到刷新"时出现问题 [英] Issue while scroll List view with Pull to Refresh

问题描述

我已经开发了一个具有一个列表视图的应用程序，并且在下拉时使用Pull刷新刷新列表数据，因此我在代码中实现的很好，但是当我向上滚动列表时却出现一个问题，但是当我向下滚动时向下滚动其未滚动完成，因为它考虑了拉刷新和刷新数据，但是我想在显示列表索引0时使它成功，然后拉动刷新即可

I have develop an application that have one list view and i used Pull to refresh for refresh list data while pull down so i implemented in my code perfectly but i get one issue when i am scroll up list scroll down but when i am scroll down its not scroll done because its consider pull to refresh and refresh data but i want to make it when display list index 0 then it work pull to refresh

所以请帮助我

我的代码是

 listNotification = (ListView) rootView.findViewById(R.id.listNotification);
    listNotification.setCacheColorHint(0);


    swipeLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swipe_container);
    swipeLayout.setOnRefreshListener(this);
    swipeLayout.setColorScheme(android.R.color.holo_blue_bright, android.R.color.holo_green_light, android.R.color.holo_orange_light, android.R.color.holo_red_light);

    if (Global.notifications == null) {
        swipeLayout.setRefreshing(true);
        new GetNotificationList().execute();
    }
    LoadNotificationToListView();

刷新

 @Override
public void onRefresh() {

    new GetNotificationList().execute();
}

推荐答案

我认为这总是使开发人员感到困惑，所以我得到了一些技巧，希望对您有所帮助

I think this always make confuse to developer so i get some trick for it hope you help

用于获取可见项索引的第一个重写列表视图setOnScrollListener方法

First override list view setOnScrollListener method for geting index of visible item

ListView.setOnScrollListener(new AbsListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView view, int scrollState) {

        }

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
            if (firstVisibleItem == 0) {
                swipeLayout.setEnabled(true);
            } else swipeLayout.setEnabled(false);
        }
    });

然后在第一个可见项为0时设置条件，然后滑动启用，否则禁用您可以看到的代码.

then set condition while firstvisible item is 0 then swipe enable otherwise disable as code you can see..

我希望这个技巧能对您有所帮助.

i hope this trick help you..

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