Android SwipeRefreshLayout 官方下拉刷新控件介绍

转载自：http://blog.csdn.net/lmj623565791/article/details/24521483

现在App基本都有下拉刷新的功能，以前基本都使用XListView或者自己写一个下拉刷新，近期Google提供了一个官方的下拉刷新控件SwipeRefreshLayout，我感觉还不错啊，见惯了传统的下拉刷新，这个反而给人耳目一新的感觉（貌似知乎的APP已经使用这种下拉刷新了）。

Google也在官方网站给出了V4的兼容包：

顺便看一眼API呗：

和XlistView差不多，还是很方便使用的，大概就这4个常用的方法，下面贴个简单的例子。
1、布局文件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="match_parent"  
    android:layout_height="match_parent" >  

    <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/id_listview"  
            android:layout_width="match_parent"  
            android:layout_height="match_parent" >  
        </ListView>  
    </android.support.v4.widget.SwipeRefreshLayout>  

</RelativeLayout> 

2、MainActivty:

package com.zhy.swiperefreshlayoutdemo;  

import java.util.ArrayList;  
import java.util.Arrays;  
import java.util.List;  

import android.annotation.SuppressLint;  
import android.app.Activity;  
import android.os.Bundle;  
import android.os.Handler;  
import android.support.v4.widget.SwipeRefreshLayout;  
import android.util.Log;  
import android.widget.ArrayAdapter;  
import android.widget.ListView;  

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("Java", "Javascript", "C++", "Ruby", "Json",  
            "HTML"));  

    private Handler mHandler = new Handler()  
    {  
        public void handleMessage(android.os.Message msg)  
        {  
            switch (msg.what)  
            {  
            case REFRESH_COMPLETE:  
                mDatas.addAll(Arrays.asList("Lucene", "Canvas", "Bitmap"));  
                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);  
        mSwipeLayout.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);  
        mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mDatas);  
        mListView.setAdapter(mAdapter);  

    }  

    public void onRefresh()  
    {  
        // Log.e("xxx", Thread.currentThread().getName()); 
        // UI Thread 

        mHandler.sendEmptyMessageDelayed(REFRESH_COMPLETE, 2000);  

    }  
}  

好了，结束，我感觉效果挺好看的.