android WIFI连接开发

首先附上一个工具类，有各种WIFI操作方法：

public class WifiAdmin {

// 定义WifiManager对象

private WifiManager mWifiManager;

// 定义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> mWifiConfiguration;

// 定义一个WifiLock

WifiLock mWifiLock;

// 构造器

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);

}

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);

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

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

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

}

// 断开指定ID的网络

public void disconnectWifi(int netId) {

mWifiManager.disableNetwork(netId);

mWifiManager.disconnect();

}

}

然后是一个实际应用方法，只验证过没有密码的情况：

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 + "\"";

if(Type == Data.WIFICIPHER_NOPASS)

{

config.wepKeys[0] = "";

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

config.wepTxKeyIndex = 0;

}

if(Type == Data.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 == Data.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.status = WifiConfiguration.Status.ENABLED;

}

return config;

}

}

分为三种情况：1没有密码2用wep加密3用wpa加密