项目中的wifi管理工具类

// 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;
private Context mctx;
private int TIME_OUT=25;

OnConnectWifiStateListener mOnConnectWifiStateListener = null;

public interface OnConnectWifiStateListener{
/**
* 连接成功时调用
*/
void connectWifiSuccess();
/**
* 连接wife失败时调用
*/
void connectWifiFailed();
}

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

}

public void setOnConnectWifiStateListener(OnConnectWifiStateListener l) {
mOnConnectWifiStateListener = l;
}

// 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 boolean checkState() {
return mWifiManager.isWifiEnabled();
//        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).SSID).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();
}

//得到接入点的SSID
public String getSSID(){
return (mWifiInfo==null) ? "NULL" : mWifiInfo.getSSID();
}

// 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);
}

/**
* 连接配置好的Wifi
*/
public boolean connectConfigurationWifi(WifiConfiguration wcg){
boolean b =  mWifiManager.enableNetwork(wcg.networkId, true);
return b;
}

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

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 = this.IsExsits(SSID);
//          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;
}

/**
* 判断某个网络是否已保存在配置中
* @param ssid
* @return
*/
public WifiConfiguration IsExsits(String SSID)
{
//        List<WifiConfiguration> existingConfigs = mWifiManager.getConfiguredNetworks();
for (WifiConfiguration existingConfig : mWifiConfiguration)
{
if (existingConfig.SSID.equals("\"" + SSID + "\"")||existingConfig.SSID.equals(SSID))
{
return existingConfig;
}
}
return null;
}

/**
* 判断某个网络有没有连接
* @param ssid
* @return
*/
public boolean checkSSIDState(String ssid){
mWifiInfo = mWifiManager.getConnectionInfo();
if(mWifiInfo!=null&&getSSID()!=null){
if(getSSID().equals("\"" + ssid + "\"")||getSSID().equals(ssid)){
return true;
}
}

return false;
}

/**
* 获取扫描的结果
* @return
*/
public List<String> getScanResultList(){
List<String> list=new ArrayList<String>();
if(mWifiList!=null&&mWifiList.size()>0){
for (int i = 0; i < mWifiList.size(); i++) {
list.add(i+"号--  "+mWifiList.get(i).SSID);
}
}

return list;
}

/**
* 获取已保存配置的网络
* @return
*/
public List<String> getConfigWifiList(){
List<String> list=new ArrayList<String>();
if(mWifiConfiguration!=null&&mWifiConfiguration.size()>0){
for(int i=0;i<mWifiConfiguration.size();i++){
list.add(i+"号--  "+mWifiConfiguration.get(i).SSID);

}
}

return list;

}

/**
* 判断能不能搜索到指定的网络
* @param SSID
* @return
*/
public boolean checkScanResult(String SSID){
if(mWifiList!=null&&mWifiList.size()>0){
for (int i = 0; i < mWifiList.size(); i++) {
if(mWifiList.get(i).SSID.equals(SSID)||mWifiList.get(i).SSID.equals("\"" + SSID + "\"")){
return true;
}
}
}

return false;
}

public void connectWifi(){

new connectWifiThr().start();
}

class connectWifiThr extends Thread {

@Override
public void run() {
int timeCount = 0;
if (!checkState()) {
openWifi();// 打开wifi

while (!checkState()) {// 每隔1秒钟检查一次wifi是否启用成功
if (timeCount >= TIME_OUT) {// 如果打开时间超过15秒，退出这次打开
mOnConnectWifiStateListener.connectWifiFailed();
return;
}
try {
sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
mOnConnectWifiStateListener.connectWifiFailed();
return;
}
timeCount++;
}

try {
sleep(2000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
mOnConnectWifiStateListener.connectWifiFailed();
return;
}

}

// 检测现有的连接是否是配置中的路由
if (checkSSIDState(MyApplication.wifi_ssid)) {// 如果配置中的网络已连接，直接上传数据
timeCount = 0;
while (!(checkState()
&& checkSSIDState(MyApplication.wifi_ssid) && NetUtils
.IsHaveInternet(mctx))) {// 每隔1秒钟检查一次wifi是否启用成功并且已连接上网络
if (timeCount >= TIME_OUT) {// 如果打开时间超过15秒，退出这次打开
mOnConnectWifiStateListener.connectWifiFailed();
return;
}
try {
sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
mOnConnectWifiStateListener.connectWifiFailed();
return;
}
timeCount++;
}
LogHelper.trace("连接路由花费时间：" + timeCount + "秒");
mOnConnectWifiStateListener.connectWifiSuccess();
} else {
startScan();

// if (wifiAdmin.checkScanResult(MyApplication.wifi_ssid)) {//
// 如果配置中的网络在可搜索范围内

WifiConfiguration wcg = IsExsits(MyApplication.wifi_ssid);
if (wcg != null) {// 如果该网络已经保存在配置中,直接连到该网络
connectConfigurationWifi(wcg);

} else {
int encryptionType = 1;// 加密类型
if (!StringUtil.isEmpty(MyApplication.wifi_password)) {
encryptionType = 3;
}
addNetwork(CreateWifiInfo(
MyApplication.wifi_ssid,
MyApplication.wifi_password, encryptionType));

}

timeCount = 0;
while (!(checkState()
&& checkSSIDState(MyApplication.wifi_ssid) && NetUtils
.IsHaveInternet(mctx))) {// 每隔1秒钟检查一次是否连接上指定的网络
if (timeCount >= TIME_OUT) {// 如果打开时间超过15秒，退出这次连接
mOnConnectWifiStateListener.connectWifiFailed();
return;
}

try {
sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
mOnConnectWifiStateListener.connectWifiFailed();
return;
}

timeCount++;
}

LogHelper.trace("连接路由花费时间：" + timeCount + "秒");
mOnConnectWifiStateListener.connectWifiSuccess();
}

}
}