学步园

1.wifi工具类

package com.example.test;

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 {
    // 定义一个WifiManager对象
    private WifiManager mWifiManager;
    // 定义一个WifiInfo对象
    private WifiInfo mWifiInfo;
    // 扫描出的网络连接列表
    private List<ScanResult> mWifiList;
    // 网络连接列表
    private List<WifiConfiguration> mWifiConfigurations;
    WifiLock mWifiLock;

    public WifiAdmin(Context context) {
        // 取得WifiManager对象
        mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
        // 取得WifiInfo对象
        mWifiInfo = mWifiManager.getConnectionInfo();
    }

    // 打开wifi
    public void openWifi() {
        if (!mWifiManager.isWifiEnabled()) {
            mWifiManager.setWifiEnabled(true);
        }
    }

    // 关闭wifi
    public void closeWifi() {
        if (!mWifiManager.isWifiEnabled()) {
            mWifiManager.setWifiEnabled(false);
        }
    }

    // 检查当前wifi状态
    public int checkState() {
        return mWifiManager.getWifiState();
    }

    // 锁定wifiLock
    public void acquireWifiLock() {
        mWifiLock.acquire();
    }

    // 解锁wifiLock
    public void releaseWifiLock() {
        // 判断是否锁定
        if (mWifiLock.isHeld()) {
            mWifiLock.acquire();
        }
    }

    // 创建一个wifiLock
    public void createWifiLock() {
        mWifiLock = mWifiManager.createWifiLock("test");
    }

    // 得到配置好的网络
    public List<WifiConfiguration> getConfiguration() {
        return mWifiConfigurations;
    }

    // 指定配置好的网络进行连接
    public void connetionConfiguration(int index) {
        if (index > mWifiConfigurations.size()) {
            return;
        }
        // 连接配置好指定ID的网络
        mWifiManager.enableNetwork(mWifiConfigurations.get(index).networkId, true);
    }

    public void startScan() {
        mWifiManager.startScan();
        // 得到扫描结果
        mWifiList = mWifiManager.getScanResults();
        // 得到配置好的网络连接
        mWifiConfigurations = mWifiManager.getConfiguredNetworks();
    }

    // 得到网络列表
    public List<ScanResult> getWifiList() {
        return mWifiList;
    }

    // 查看扫描结果
    public StringBuffer lookUpScan() {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < mWifiList.size(); i++) {
            sb.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
            sb.append((mWifiList.get(i)).toString()).append("\n");
        }
        return sb;
    }

    public String getMacAddress() {
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getMacAddress();
    }

    public String getBSSID() {
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getBSSID();
    }

    public String getSSID() {
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getSSID();
    }

    public int getIpAddress() {
        return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress();
    }

    // 得到连接的ID
    public int getNetWordId() {
        return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId();
    }

    // 得到wifiInfo的所有信息
    public String getWifiInfo() {
        return (mWifiInfo == null) ? "NULL" : mWifiInfo.toString();
    }

    // 添加一个网络并连接
    public void addNetWork(WifiConfiguration configuration) {
        int wcgId = mWifiManager.addNetwork(configuration);
        boolean isSuccess = mWifiManager.enableNetwork(wcgId, true);
        Log.d("yzy", "isSuccess=" + isSuccess);

    }

    // 断开指定ID的网络
    public void disConnectionWifi(int netId) {
        mWifiManager.disableNetwork(netId);
        mWifiManager.disconnect();
    }

    /**
     * 配置wifi
     * 
     * @param SSID
     * @param Password
     * @param Type
     * @return
     */
    public WifiConfiguration createWifiInfo(String SSID,
            String Password, int Type)
    {
        WifiConfiguration config = new WifiConfiguration();
        config.allowedAuthAlgorithms.clear();
        config.allowedGroupCiphers.clear();
        config.allowedKeyManagement.clear();
        config.allowedPairwiseCiphers.clear();
        config.allowedProtocols.clear();
        config.SSID = "\"" + SSID + "\"";

        WifiConfiguration tempConfig = isExsits(SSID, mWifiManager);
        if (tempConfig != null) {
            mWifiManager.removeNetwork(tempConfig.networkId);
        }

        if (Type == 1) // WIFICIPHER_NOPASS
        {
            config.wepKeys[0] = "";
            config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
            config.wepTxKeyIndex = 0;
        }
        if (Type == 2) // WIFICIPHER_WEP
        {
            config.hiddenSSID = true;
            config.wepKeys[0] = "\"" + Password + "\"";
            config.allowedAuthAlgorithms
                    .set(WifiConfiguration.AuthAlgorithm.SHARED);
            config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
            config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
            config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
            config.allowedGroupCiphers
                    .set(WifiConfiguration.GroupCipher.WEP104);
            config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
            config.wepTxKeyIndex = 0;
        }
        if (Type == 3) // WIFICIPHER_WPA
        {
            config.preSharedKey = "\"" + Password + "\"";
            config.hiddenSSID = true;
            config.allowedAuthAlgorithms
                    .set(WifiConfiguration.AuthAlgorithm.OPEN);
            config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
            config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
            config.allowedPairwiseCiphers
                    .set(WifiConfiguration.PairwiseCipher.TKIP);
            // config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
            config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
            config.allowedPairwiseCiphers
                    .set(WifiConfiguration.PairwiseCipher.CCMP);
            config.status = WifiConfiguration.Status.ENABLED;
        }
        return config;
    }

    /**
     * 判断wifi是否存在
     * 
     * @param SSID
     * @param wifiManager
     * @return
     */
    private static WifiConfiguration isExsits(String SSID,
            WifiManager wifiManager)
    {
        List<WifiConfiguration> existingConfigs = wifiManager
                .getConfiguredNetworks();
        for (WifiConfiguration existingConfig : existingConfigs) {
            if (existingConfig.SSID.equals("\"" + SSID + "\"")) {
                return existingConfig;
            }
        }
        return null;
    }
}

2.

private WifiAdmin mWifiAdmin;    
    // 扫描结果列表    
    private List<ScanResult> list;  
    private ScanResult mScanResult;    
    private StringBuffer sb=new StringBuffer();  
    public void getAllNetWorkList(){  
        // 每次点击扫描之前清空上一次的扫描结果    
      if(sb!=null){  
          sb=new StringBuffer();  
      }  
      //开始扫描网络  
      mWifiAdmin.startScan();  
      list=mWifiAdmin.getWifiList();  
      if(list!=null){  
          for(int i=0;i<list.size();i++){  
              //得到扫描结果  
              mScanResult=list.get(i);  
              sb=sb.append(mScanResult.BSSID+"  ").append(mScanResult.SSID+"   ")  
              .append(mScanResult.capabilities+"   ").append(mScanResult.frequency+"   ")  
              .append(mScanResult.level+"\n\n");  
          }
          Log.d("yzy",""+sb.toString());
      }  
  }  

 mWifiAdmin = new WifiAdmin(this);    
            getAllNetWorkList();
//            Log.d("yzy",""+mWifiAdmin.getConfiguration().toString());
            WifiConfiguration config = mWifiAdmin.createWifiInfo("spreadst", "SpreadST1124", 3);
            mWifiAdmin.addNetWork(config);