知乎下拉刷新SwipeRefreshLayout下拉刷新用法类似知乎下拉刷新

首先我们需要导入support v4的包，然后选择SwipeRefreshLayout，放到布局中。

在layout布局中，以listview举例，以以下格式使用SwipeRefreshLayout。

<android.support.v4.widget.SwipeRefreshLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/SwipeRefresh" >
<ListView
android:dividerHeight="0.5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/newsListView" />

</android.support.v4.widget.SwipeRefreshLayout>

在java文件中

private List<Map<String, Object>> list = new ArrayList<>();

private SwipeRefreshLayout swipeRefresh;

newsListView = (ListView) view.findViewById(R.id.newsListView);
swipeRefresh = (SwipeRefreshLayout) view.findViewById(R.id.SwipeRefresh);

swipeRefresh.setColorSchemeResources(R.color.colorAccent);//设置圆形旋转图标中的箭头的颜色
swipeRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {  //下滑listview时回调
newsListView.setAdapter(null); //不显示listview
list.clear(); //list集合清空，
new newsThread().start(); //启动线程加载数据
}
});

private class newsThread extends Thread {
@Override
public void run() {
super.run();
setNewsData("范冰冰");
String path = getNewsDataUrl(params); //获取接口地址，不要照抄，这是自己写的方法
data = GetInternetJson(path, "GET"); //获取json数据，不要照抄，这是自己写的方法
resolutionJson(data); //解析json添加到list集合中
Message msg = new Message();
msg.what = 0x12;
mHandler.sendMessage(msg);
}
}

private Handler mHandler = new Handler(new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
if (msg.what == 0x12) {
swipeRefresh.setRefreshing(false); //关闭刷新
MyAdapter adapter = new MyAdapter(getActivity(), list); //自定义baseAdapter，传入list集合
newsListView.setAdapter(adapter);
}
return false;
}
});