android WIFI连接开发

首先附上一个工具类，有各种WIFI操作方法：

 

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001.public class WifiAdmin {

002.// 定义WifiManager对象 

003.private WifiManager mWifiManager;

004.// 定义WifiInfo对象 

005.private WifiInfo mWifiInfo;

006.// 扫描出的网络连接列表 

007.private List<ScanResult> mWifiList;

008.// 网络连接列表 

009.private List<WifiConfiguration> mWifiConfiguration;

010.// 定义一个WifiLock 

011.WifiLock mWifiLock;

012. 

013.// 构造器 

014.public WifiAdmin(Context context) {

015.// 取得WifiManager对象 

016.mWifiManager = (WifiManager) context

017..getSystemService(Context.WIFI_SERVICE);

018.// 取得WifiInfo对象 

019.mWifiInfo = mWifiManager.getConnectionInfo();

020.}

021. 

022.// 打开WIFI 

023.public void openWifi() {

024.if (!mWifiManager.isWifiEnabled()) {

025.mWifiManager.setWifiEnabled(true);

026.}

027.}

028. 

029.// 关闭WIFI 

030.public void closeWifi() {

031.if (mWifiManager.isWifiEnabled()) {

032.mWifiManager.setWifiEnabled(false);

033.}

034.}

035. 

036.// 检查当前WIFI状态 

037.public int checkState() {

038.return mWifiManager.getWifiState();

039.}

040. 

041.// 锁定WifiLock 

042.public void acquireWifiLock() {

043.mWifiLock.acquire();

044.}

045. 

046.// 解锁WifiLock 

047.public void releaseWifiLock() {

048.// 判断时候锁定 

049.if (mWifiLock.isHeld()) {

050.mWifiLock.acquire();

051.}

052.}

053. 

054.// 创建一个WifiLock 

055.public void creatWifiLock() {

056.mWifiLock = mWifiManager.createWifiLock("Test");

057.}

058. 

059.// 得到配置好的网络 

060.public List<WifiConfiguration> getConfiguration() {

061.return mWifiConfiguration;

062.}

063. 

064.// 指定配置好的网络进行连接 

065.public void connectConfiguration(int index) {

066.// 索引大于配置好的网络索引返回 

067.if (index > mWifiConfiguration.size()) {

068.return;

069.}

070.// 连接配置好的指定ID的网络 

071.mWifiManager.enableNetwork(mWifiConfiguration.get(index).networkId,

072.true);

073.}

074. 

075.public void startScan() {

076.mWifiManager.startScan();

077.// 得到扫描结果 

078.mWifiList = mWifiManager.getScanResults();

079.// 得到配置好的网络连接 

080.mWifiConfiguration = mWifiManager.getConfiguredNetworks();

081.}

082. 

083.// 得到网络列表 

084.public List<ScanResult> getWifiList() {

085.return mWifiList;

086.}

087. 

088.// 查看扫描结果 

089.public StringBuilder lookUpScan() {

090.StringBuilder stringBuilder = new StringBuilder();

091.for (int i = 0; i < mWifiList.size(); i++) {

092.stringBuilder

093..append("Index_" + new Integer(i + 1).toString() + ":");

094.// 将ScanResult信息转换成一个字符串包 

095.// 其中把包括：BSSID、SSID、capabilities、frequency、level 

096.stringBuilder.append((mWifiList.get(i)).toString());

097.stringBuilder.append("/n");

098.}

099.return stringBuilder;

100.}

101. 

102.// 得到MAC地址 

103.public String getMacAddress() {

104.return (mWifiInfo == null) ? "NULL" : mWifiInfo.getMacAddress();

105.}

106. 

107.// 得到接入点的BSSID 

108.public String getBSSID() {

109.return (mWifiInfo == null) ? "NULL" : mWifiInfo.getBSSID();

110.}

111. 

112.// 得到IP地址 

113.public int getIPAddress() {

114.return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress();

115.}

116. 

117.// 得到连接的ID 

118.public int getNetworkId() {

119.return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId();

120.}

121. 

122.// 得到WifiInfo的所有信息包 

123.public String getWifiInfo() {

124.return (mWifiInfo == null) ? "NULL" : mWifiInfo.toString();

125.}

126. 

127.// 添加一个网络并连接 

128.public void addNetwork(WifiConfiguration wcg) {

129.int wcgID = mWifiManager.addNetwork(wcg);

130.boolean b =  mWifiManager.enableNetwork(wcgID, true);

131.System.out.println("a--" + wcgID);

132.System.out.println("b--" + b);

133.}

134. 

135.// 断开指定ID的网络 

136.public void disconnectWifi(int netId) {

137.mWifiManager.disableNetwork(netId);

138.mWifiManager.disconnect();

139.}

140.}

然后是一个实际应用方法，只验证过没有密码的情况：

 

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01.WifiConfiguration CreateWifiInfo(String SSID, String Pass<a href="http://www./edu/ebg/" target="_blank" class="keylink">word</a>, int Type)

02.{

03.WifiConfiguration config = new WifiConfiguration();  

04.config.allowedAuthAlgorithms.clear();

05.config.allowedGroupCiphers.clear();

06.config.allowedKeyManagement.clear();

07.config.allowedPairwiseCiphers.clear();

08.config.allowedProtocols.clear();

09.config.SSID = "\"" + SSID + "\"";  

10.if(Type == Data.WIFICIPHER_NOPASS)

11.{

12.config.wepKeys[0] = "";

13.config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);

14.config.wepTxKeyIndex = 0;

15.}

16.if(Type == Data.WIFICIPHER_WEP)

17.{

18.config.hiddenSSID = true;

19.config.wepKeys[0]= "\""+Pass<a href="http://www./edu/ebg/" target="_blank" class="keylink">word</a>+"\"";

20.config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.SHARED);

21.config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);

22.config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);

23.config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);

24.config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP104);

25.config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);

26.config.wepTxKeyIndex = 0;

27.}

28.if(Type == Data.WIFICIPHER_WPA)

29.{

30.config.preSharedKey = "\""+Password+"\"";

31.config.hiddenSSID = true;  

32.config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);  

33.config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);                        

34.config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);                        

35.config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);                   

36.config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);                     

37.config.status = WifiConfiguration.Status.ENABLED;  

38.}

39. 

40.return config;

41.}

42. 

43. 

44.}

分为三种情况：1没有密码2用wep加密3用wpa加密