SwipeRefreshLayout 使用

最新推荐文章于 2024-09-15 08:29:39 发布

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最新推荐文章于 2024-09-15 08:29:39 发布

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分类专栏： android基础

本文链接：https://blog.youkuaiyun.com/lib739449500/article/details/51491346

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本文展示了一个使用SwipeRefreshLayout实现下拉刷新功能的示例代码。该示例中，SwipeRefreshLayout包裹了一个ListView，并通过监听器处理刷新逻辑，更新数据列表并通知适配器刷新视图。

直接上代码：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/id_swipe_ly"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <ListView
            android:id="@+id/listview"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </android.support.v4.widget.SwipeRefreshLayout>

</LinearLayout>

public class MainActivity extends Activity implements SwipeRefreshLayout.OnRefreshListener  
{  
  
    private static final int REFRESH_COMPLETE = 0X110;  
    private SwipeRefreshLayout mSwipeLayout;  
    private ListView mListView;  
    private ArrayAdapter<String> mAdapter;  
    private List<String> mDatas = new ArrayList<String>(Arrays.asList("aaaaa", "bbbbb", "ccccc", "ddddd"));  
  
    private Handler mHandler = new Handler()  
    {  
        public void handleMessage(android.os.Message msg)  
        {  
            switch (msg.what)  
            {  
            case REFRESH_COMPLETE:  
                mDatas.addAll(Arrays.asList("eee", "fff", "gggg"));  
                mAdapter.notifyDataSetChanged();  
                mSwipeLayout.setRefreshing(false);  
                break;  
  
            }  
        };  
    };  
  
    @SuppressLint("InlinedApi")  
    protected void onCreate(Bundle savedInstanceState)  
    {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);  
  
        mListView = (ListView) findViewById(R.id.id_listview);  
        mSwipeLayout = (SwipeRefreshLayout) findViewById(R.id.id_swipe_ly);  
        mSwipeLayout.setOnRefreshListener(this);  
<span style="white-space:pre">	</span>mSwipeLayout.setColorSchemeResources(R.color.aliceblue,
<span style="white-space:pre">				</span>R.color.black,
<span style="white-space:pre">				</span>R.color.gold,
<span style="white-space:pre">				</span>R.color.red);
        mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mDatas);  
        mListView.setAdapter(mAdapter);  
  
    }  
  
    public void onRefresh()  
    {  
        mHandler.sendEmptyMessageDelayed(REFRESH_COMPLETE, 2000);  
  
    }  
}