android测试中如何控制wifi

import java.util.List;  
  
import android.content.Context;  
import android.net.wifi.ScanResult;  
import android.net.wifi.WifiConfiguration;  
import android.net.wifi.WifiInfo;  
import android.net.wifi.WifiManager;  
import android.net.wifi.WifiManager.WifiLock;  
  
public class WifiAdmin{//代码来自网络，原址找不到了……  
    private WifiManager mWifiManager;   //定义WifiManager对象  
  
    private WifiInfo mWifiInfo; //定义WifiInfo对象  
  
    private List<ScanResult> mWifiList;   //扫描出的网络连接列表  
  
    private List<WifiConfiguration> mWifiConfiguration;   //网络连接列表  
  
    WifiLock mWifiLock; //定义一个WifiLock  
  
    public  WifiAdmin(Context context){  
        mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);        //取得WifiManager对象  
        mWifiInfo = mWifiManager.getConnectionInfo();       //取得WifiInfo对象  
    }  
    //打开WIFI  
    public void openWifi(){  
        if (!mWifiManager.isWifiEnabled()){  
            mWifiManager.setWifiEnabled(true);  
        }  
    }  
    //关闭WIFI  
    public void closeWifi(){  
        if (mWifiManager.isWifiEnabled()){  
            mWifiManager.setWifiEnabled(false);   
        }  
    }  
    //锁定WifiLock，当下载大文件时需要锁定  
    public void acquireWifiLock(){  
        mWifiLock.acquire();  
    }  
      
    public void releaseWifiLock(){//解锁WifiLock  
        //判断时候锁定  
        if (mWifiLock.isHeld()){  
            mWifiLock.acquire();  
        }  
    }  
      
    public void creatWifiLock(){//创建一个WifiLock  
        mWifiLock = mWifiManager.createWifiLock("Test");  
    }  
  
    public List<WifiConfiguration> getConfiguration(){    //得到配置好的网络  
        return mWifiConfiguration;  
    }  
      
    public void connectConfiguration(int index){//指定配置好的网络进行连接  
        //索引大于配置好的网络索引返回  
        if(index > mWifiConfiguration.size()){  
            return;  
        }  
        //连接配置好的指定ID的网络  
        mWifiManager.enableNetwork(mWifiConfiguration.get(index).networkId, true);  
    }  
      
    public void startScan(){  
        mWifiManager.startScan();       //得到扫描结果   
        mWifiList = mWifiManager.getScanResults();   
        mWifiConfiguration = mWifiManager.getConfiguredNetworks();//得到配置好的网络连接  
    }  
      
    public List<ScanResult> getWifiList(){//得到网络列表  
        return mWifiList;  
    }  
      
    public StringBuilder lookUpScan(){//查看扫描结果  
        StringBuilder stringBuilder = new StringBuilder();  
        for (int i = 0; i < mWifiList.size(); i++){  
            stringBuilder.append("Index_"+new Integer(i + 1).toString() + ":");  
            //将ScanResult信息转换成一个字符串包  
            //其中把包括：BSSID、SSID、capabilities、frequency、level  
            stringBuilder.append((mWifiList.get(i)).toString());  
            stringBuilder.append("\n");  
        }  
        return stringBuilder;  
    }  
      
    //得到MAC地址  
    public String getMacAddress()   {  
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getMacAddress();  
    }  
      
    //得到接入点的BSSID  
    public String getBSSID(){  
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getBSSID();  
    }  
      
    //得到IP地址  
    public int getIPAddress(){  
        return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress();  
    }  
      
    //得到连接的ID  
    public int getNetworkId(){  
        return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId();  
    }  
    //得到WifiInfo的所有信息包  
    public String getWifiInfo(){  
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.toString();  
    }  
      
    //添加一个网络并连接  
    public void addNetwork(WifiConfiguration wcg){  
        int wcgID = mWifiManager.addNetwork(wcg);   
        mWifiManager.enableNetwork(wcgID, true);   
    }  
    //断开指定ID的网络  
    public void disconnectWifi(int netId){  
        mWifiManager.disableNetwork(netId);  
        mWifiManager.disconnect();  
    }  
}