android wifi测试小程序

//比较简单，直接来代码

package com.myos;

import java.util.List;

import android.app.Activity;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class WifiTestActivity extends Activity {

	private WifiManager mWifiManager;
	private Button bn_switch;
	private Button bn_scan;
	private TextView tx_scan;
	private WifiAdmin mWifiAdmin;

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
//		mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
		mWifiAdmin = new WifiAdmin(WifiTestActivity.this);
		bn_switch = (Button) findViewById(R.id.button);
		bn_scan = (Button) findViewById(R.id.bn_scan);
		tx_scan = (TextView) findViewById(R.id.tx_scan);
		
		mWifiAdmin.Createwifilock();
		
		bn_switch.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				if (mWifiAdmin.isWifiEnabled()) {
					mWifiAdmin.CloseWife();
//					mWifiManager.setWifiEnabled(false);
				} else {
					mWifiAdmin.OpenWifi();
//					mWifiManager.setWifiEnabled(true);
				}
			}
		});
		
		bn_scan.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				mWifiAdmin.StartScan();
				StringBuilder s = mWifiAdmin.LookUpScan();
				List<WifiConfiguration> mListWifiCgn = mWifiAdmin.GetConfinguration();
				tx_scan.setText(s);
			}
		});
	}

}

package com.myos;

import java.util.List;

import android.R.bool;
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;
   
/**  
 * com.Aina.Android Pro_wifi  
 *   
 * @author Aina.huang E-mail: [email protected]  
 * @version 创建时间：2010 Jul 21, 2010 12:29:00 PM 类说明  
 */    
public class WifiAdmin {    
   
    private WifiManager mWifiManager = null;    
    private WifiInfo mWifiInfo = null;    
    private List<ScanResult> mWifiList = null;// 扫描出的网络连接列表    
    private List<WifiConfiguration> mWifiConfiguration = null;// 网络连接列表    
    private WifiLock mWifiLock = null;    
   
    public WifiAdmin(Context mContext) {    
        mWifiManager = (WifiManager) mContext.getSystemService(mContext.WIFI_SERVICE);    
        mWifiInfo = mWifiManager.getConnectionInfo();    
    }    
   
    public boolean isWifiEnabled(){
    	return mWifiManager.isWifiEnabled();
    }
    
    public void OpenWifi() {    
        if (!mWifiManager.isWifiEnabled()) {    
            mWifiManager.setWifiEnabled(true);// 打开wifi    
        }    
    }    
   
    public void CloseWife() {    
        if (mWifiManager.isWifiEnabled()) {    
            mWifiManager.setWifiEnabled(false);// 关闭wifi    
        }    
    }    
   
    public void lockWifi() {    
        mWifiLock.acquire();// 锁定wifi    
    }    
   
    public void rlockWifi() {    
        if (mWifiLock.isHeld()) {    
            mWifiLock.acquire();// 解锁wifi    
        }    
    }    
   
    public void Createwifilock() {    
        mWifiLock = mWifiManager.createWifiLock("Testss");// 创建一个wifilock    
    }    
   
    public List<WifiConfiguration> GetConfinguration() {    
        return mWifiConfiguration;// 得到配置好的网络    
    }    
   
    public void ConnectConfiguration(int index) {    
        if (index > mWifiConfiguration.size()) {    
            return;    
        }    
        mWifiManager.enableNetwork(mWifiConfiguration.get(index).networkId, true);//连接配置好的指定ID的网络    
    }    
    public void StartScan()    
    {    
        mWifiManager.startScan();    
        //得到扫描结果    
        mWifiList = mWifiManager.getScanResults();    
        //得到配置好的网络连接    
        mWifiConfiguration = mWifiManager.getConfiguredNetworks();    
    }    
    //得到网络列表    
    public List<ScanResult> GetWifiList()    
    {    
        return mWifiList;    
    }    
    //查看扫描结果    
    public StringBuilder LookUpScan()    
    {    
        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();    
    }    
}  

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.myos"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />
	
    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name=".WifiTestActivity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
    <uses-permission 
        android:name="android.permission.ACCESS_WIFI_STATE"
    />
	<uses-permission 
        android:name="android.permission.CHANGE_WIFI_STATE">
    </uses-permission>
    <uses-permission 
    	android:name="android.permission.WAKE_LOCK">
    </uses-permission>
</manifest>

布局xml

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

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />
    <Button 
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="按钮"/>
    <Button
        android:id="@+id/bn_scan"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="扫描"/>
    <TextView
        android:text="haha"
        android:id="@+id/tx_scan"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
        

</LinearLayout>