Android官方下拉刷新控件SwipeRefreshLayout

SwipeRefreshLayout是Google提供的一个官方的下拉刷新控件，比传统的使用起来更简易。

效果图：

主要方法：

• OnRefreshListener：刷新监听，下拉触发。
• setRefreshing（true）：设置刷新动画，取消传false。
• setColorSchemeResources：设置刷新时动画的颜色。

1.布局文件 SwipeRefreshLayout是V4包下提供的，使用时需要把要刷新的控件包裹起来。

<android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipRefreshLayout"
        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" >
        </ListView>
        
    </android.support.v4.widget.SwipeRefreshLayout>

2.Activity

package com.bestyc.swiperefreshlayout;

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

import com.bestyc.swiperefreshlayout.R;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.view.Window;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends Activity implements OnRefreshListener{

  private ListView mListView;
  private ArrayAdapter<String> adapter;
  private List<String> mData;
  private SwipeRefreshLayout mSwipeRefreshLayout;
  
  Handler handler = new Handler(){
    public void handleMessage(android.os.Message msg) {
      //关闭刷新
      mSwipeRefreshLayout.setRefreshing(false);
      mListView.setAdapter(adapter);
    };
  };
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_main);
    mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipRefreshLayout);
    mSwipeRefreshLayout.setOnRefreshListener(this);
    //设置刷新时的颜色
    mSwipeRefreshLayout.setColorSchemeResources(
        android.R.color.holo_blue_bright,
        android.R.color.holo_green_light,
        android.R.color.holo_orange_light);
    mListView=(ListView) findViewById(R.id.listview);
    mData = new ArrayList<String>();
    for (int i=0;i<=10;i++) {
      mData.add("加载的数据"+i);
    }
    adapter = new ArrayAdapter<String>(this, R.layout.item, R.id.text,mData);
  }

  @Override
  public void onRefresh() {//更新数据
    handler.sendEmptyMessageDelayed(1, 3000);
  }
}

源码下载地址：​​https://github.com/yechaoa/SwipeRefreshLayout​​