Android 關於wifi管理的代碼

開啟和關閉wifi的代碼 1、需要申請的權限 　　android.permission.ACCESS_WIFI_STATE 　　android.permission.CHANGE_WIFI_STATE 　　android.permission.WAKE_LOCK 2、獲取WifiManager 　　wifiManager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE); 3、開啟、關閉wifi 　　if (wifiManager.isWifiEnabled()) { 　　wifiManager.setWifiEnabled(false); 　　} else { 　　wifiManager.setWifiEnabled(true); 　　}   Android設置wifi 1.new 一個wificonfiguration對象。 2.設置這個對象的一些屬性。 [java]   <span style="font-size:18px">WifiConfiguration wc = new WifiConfiguration();   wc.SSID = "\""+sr.SSID+"\"";      //<span style="color: rgb(255, 0, 0); ">這個地方一定要注意了。旁邊的“是不能夠省略的。密碼的地方也一樣。</span>   wc.preSharedKey = "\""+etPassword.getText().toString()+"\"";      //該熱點的密碼   wc.hiddenSSID = true;   wc.status = WifiConfiguration.Status.ENABLED;   wc.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);   wc.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);   wc.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);   wc.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);   wc.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);   wc.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);   wc.allowedProtocols.set(WifiConfiguration.Protocol.WPA);</span>   3.判斷wifi是否加密： [java]  <span style="font-size:18px">    public static int getSecurity(ScanResult result) {           if (result.capabilities.contains("WEP")) {               return 1;           } else if (result.capabilities.contains("PSK")) {               return 2;           } else if (result.capabilities.contains("EAP")) {               return 3;           }           return 0;       }       </span>   4.連接未加密wifi連接： [java]   <span style="font-size:18px"><pre name="code" class="java">WifiConfiguration config = new WifiConfiguration();   config.SSID = "\"" + sr.SSID + "\"";   config.allowedKeyManagement.set(KeyMgmt.NONE);   int networkId = wifiManager.addNetwork(config);   if(networkId != -1){       wifiManager.enableNetwork(networkId, false);       wifiManager.saveConfiguration();   }</pre><p></p>   <pre></pre>   <p></p>   </span>