wifi權限
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
wifi處理類
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public class WifiUtil { //定義一個WifiManager對象 private WifiManager mWifiManager; //定義一個WifiInfo對象 private WifiInfo mWifiInfo; //掃描出的網絡連接列表 private List<ScanResult> mWifiList; //網絡連接列表 private List<WifiConfiguration> mWifiConfigurations; WifiLock mWifiLock; public WifiAdmin(Context context){ //取得WifiManager對象 mWifiManager=(WifiManager) context.getSystemService(Context.WIFI_SERVICE); //取得WifiInfo對象 mWifiInfo=mWifiManager.getConnectionInfo(); } //打開wifi public void openWifi(){ if(!mWifiManager.isWifiEnabled()){ mWifiManager.setWifiEnabled(true); } } //關閉wifi public void closeWifi(){ if(!mWifiManager.isWifiEnabled()){ mWifiManager.setWifiEnabled(false); } } // 檢查當前wifi狀態 public int checkState() { return mWifiManager.getWifiState(); } //鎖定wifiLock public void acquireWifiLock(){ mWifiLock.acquire(); } //解鎖wifiLock public void releaseWifiLock(){ //判斷是否鎖定 if(mWifiLock.isHeld()){ mWifiLock.acquire(); } } //創建一個wifiLock public void createWifiLock(){ mWifiLock=mWifiManager.createWifiLock("test"); } //得到配置好的網絡 public List<WifiConfiguration> getConfiguration(){ return mWifiConfigurations; } //指定配置好的網絡進行連接 public void connetionConfiguration(int index){ if(index>mWifiConfigurations.size()){ return ; } //連接配置好指定ID的網絡 mWifiManager.enableNetwork(mWifiConfigurations.get(index).networkId, true); } public void startScan(){ mWifiManager.startScan(); //得到掃描結果 mWifiList=mWifiManager.getScanResults(); //得到配置好的網絡連接 mWifiConfigurations=mWifiManager.getConfiguredNetworks(); } //得到網絡列表 public List<ScanResult> getWifiList(){ return mWifiList; } //查看掃描結果 public StringBuffer lookUpScan(){ StringBuffer sb=new StringBuffer(); for(int i=0;i<mWifiList.size();i++){ sb.append("Index_" + new Integer(i + 1).toString() + ":"); // 將ScanResult信息轉換成一個字符串包 // 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 int getIpAddress(){ return (mWifiInfo==null)?0:mWifiInfo.getIpAddress(); } //得到連接的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(); } //添加一個網絡並連接 public void addNetWork(WifiConfiguration configuration){ int wcgId=mWifiManager.addNetwork(configuration); mWifiManager.enableNetwork(wcgId, true); } //斷開指定ID的網絡 public void disConnectionWifi(int netId){ mWifiManager.disableNetwork(netId); mWifiManager.disconnect(); } } |