android下获取无线wif信号、ssid、MAC等操作类

一个android下获取无线wif信号、ssid、MAC等操作的类。
WifiAdmin.java
package com.afu;  
  
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;  
import android.util.Log;  
  
public class WifiAdmin {  
    private final static String TAG = "WifiAdmin";  
    private StringBuffer mStringBuffer = new StringBuffer();  
    private List<ScanResult> listResult;  
    private ScanResult mScanResult;  
    // 定义WifiManager对象   
    private WifiManager mWifiManager;  
    // 定义WifiInfo对象   
    private WifiInfo mWifiInfo;  
    // 网络连接列表   
    private List<WifiConfiguration> mWifiConfiguration;  
    // 定义一个WifiLock   
    WifiLock mWifiLock;  
  
    /** 
     * 构造方法 
     */  
    public WifiAdmin(Context context) {  
        mWifiManager = (WifiManager) context  
                .getSystemService(Context.WIFI_SERVICE);  
        mWifiInfo = mWifiManager.getConnectionInfo();  
    }  
  
    /** 
     * 打开Wifi网卡 
     */  
    public void openNetCard() {  
        if (!mWifiManager.isWifiEnabled()) {  
            mWifiManager.setWifiEnabled(true);  
        }  
    }  
  
    /** 
     * 关闭Wifi网卡 
     */  
    public void closeNetCard() {  
        if (mWifiManager.isWifiEnabled()) {  
            mWifiManager.setWifiEnabled(false);  
        }  
    }  
  
    /** 
     * 检查当前Wifi网卡状态 
     */  
    public void checkNetCardState() {  
        if (mWifiManager.getWifiState() == 0) {  
            Log.i(TAG, "网卡正在关闭");  
        } else if (mWifiManager.getWifiState() == 1) {  
            Log.i(TAG, "网卡已经关闭");  
        } else if (mWifiManager.getWifiState() == 2) {  
            Log.i(TAG, "网卡正在打开");  
        } else if (mWifiManager.getWifiState() == 3) {  
            Log.i(TAG, "网卡已经打开");  
        } else {  
            Log.i(TAG, "没有获取到状态-_-");  
        }  
    }  
  
    /** 
     * 扫描周边网络 
     */  
    public void scan() {  
        mWifiManager.startScan();  
        listResult = mWifiManager.getScanResults();  
        if (listResult != null) {  
            Log.i(TAG, "当前区域存在无线网络，请查看扫描结果");  
        } else {  
            Log.i(TAG, "当前区域没有无线网络");  
        }  
    }  
  
    /** 
     * 得到扫描结果 获取无线信号列表 
     */  
    public String getScanResult() {  
        // 每次点击扫描之前清空上一次的扫描结果   
        if (mStringBuffer != null) {  
            mStringBuffer = new StringBuffer();  
        }  
        // 开始扫描网络   
        scan();  
        listResult = mWifiManager.getScanResults();  
        if (listResult != null) {  
            for (int i = 0; i < listResult.size(); i++) {  
                mScanResult = listResult.get(i);  
                mStringBuffer = mStringBuffer.append("NO.").append(i + 1)  
                        .append(" :").append(mScanResult.SSID).append("->")  
                        .append(mScanResult.BSSID).append("->")  
                        .append(mScanResult.capabilities).append("->")  
                        .append(mScanResult.frequency).append("->")  
                        .append(mScanResult.level).append("->")  
                        .append(mScanResult.describeContents()).append("\n\n");  
            }  
        }  
        Log.i(TAG, mStringBuffer.toString());  
        return mStringBuffer.toString();  
    }  
  
    /** 
     * 连接指定网络 
     */  
    public void connect() {  
          
        mWifiInfo = mWifiManager.getConnectionInfo();  
        if (mWifiInfo != null) {  
            Log.d("wifiInfo", mWifiInfo.toString());    
            Log.d("SSID",mWifiInfo.getSSID());    
        }  
    }  
  
    /** 
     * 断开当前连接的网络 
     */  
    public void disconnectWifi() {  
        int netId = getNetworkId();  
        mWifiManager.disableNetwork(netId);  
        mWifiManager.disconnect();  
        mWifiInfo = null;  
    }  
  
    /** 
     * 检查当前网络状态 
     * 
     * @return String 
     */  
    public void checkNetWorkState() {  
        if (mWifiInfo != null) {  
            Log.i(TAG, "网络正常工作");  
        } else {  
            Log.i(TAG, "网络已断开");  
        }  
    }  
  
    /** 
     * 得到连接的ID 
     */  
    public int getNetworkId() {  
        return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId();  
    }  
  
    /** 
     * 得到IP地址 
     */  
    public int getIPAddress() {  
        return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress();  
    }  
  
    // 锁定WifiLock   
    public void acquireWifiLock() {  
        mWifiLock.acquire();  
    }  
  
    // 解锁WifiLock   
    public void releaseWifiLock() {  
        // 判断时候锁定   
        if (mWifiLock.isHeld()) {  
            mWifiLock.acquire();  
        }  
    }  
  
    // 创建一个WifiLock   
    public void creatWifiLock() {  
        mWifiLock = mWifiManager.createWifiLock("Test");  
    }  
  
    // 得到配置好的网络   
    public List<WifiConfiguration> getConfiguration() {  
        return mWifiConfiguration;  
    }  
  
    // 指定配置好的网络进行连接   
    public void connectConfiguration(int index) {  
        // 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);  
    }  
  
    // 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 int addNetwork(WifiConfiguration wcg) {  
        int wcgID = mWifiManager.addNetwork(mWifiConfiguration.get(3));  
        mWifiManager.enableNetwork(wcgID, true);  
        return wcgID;  
    }  
}  

package com.afu;

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;
import android.util.Log;

public class WifiAdmin {
    private final static String TAG = "WifiAdmin";
    private StringBuffer mStringBuffer = new StringBuffer();
    private List<ScanResult> listResult;
    private ScanResult mScanResult;
    // 定义WifiManager对象
    private WifiManager mWifiManager;
    // 定义WifiInfo对象
    private WifiInfo mWifiInfo;
    // 网络连接列表
    private List<WifiConfiguration> mWifiConfiguration;
    // 定义一个WifiLock
    WifiLock mWifiLock;

    /**
     * 构造方法
     */
    public WifiAdmin(Context context) {
        mWifiManager = (WifiManager) context
                .getSystemService(Context.WIFI_SERVICE);
        mWifiInfo = mWifiManager.getConnectionInfo();
    }

    /**
     * 打开Wifi网卡
     */
    public void openNetCard() {
        if (!mWifiManager.isWifiEnabled()) {
            mWifiManager.setWifiEnabled(true);
        }
    }

    /**
     * 关闭Wifi网卡
     */
    public void closeNetCard() {
        if (mWifiManager.isWifiEnabled()) {
            mWifiManager.setWifiEnabled(false);
        }
    }

    /**补充：移动开发 , Android ,