Android:如何以编程方式启用/禁用Wifi或Internet连接
使用Connectivity Manager Class,我们可以访问wifi或Internetnetworking:
ConnectivityManager connec = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE); // ARE WE CONNECTED TO THE NET if ( connec.getNetworkInfo(0).getState() == NetworkInfo.State.CONNECTED || connec.getNetworkInfo(1).getState() == NetworkInfo.State.CONNECTED ) { // ... }
其中0
和1
分别指移动和wifi连接
如果我的Android设备连接到两者,我们可以在任何networking之间切换,或者我们可以禁用任何networking? 像使用一个函数一样:
connec.getNetworkInfo(0).setState(NetworkInfo.State.DISCONNECTED);
我知道启用或禁用wifi:
WifiManager wifiManager = (WifiManager)this.context.getSystemService(Context.WIFI_SERVICE); wifiManager.setWifiEnabled(status);
根据要求,状态可能为true
或false
。
启用WiFi:
WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); wifi.setWifiEnabled(true);
禁用WiFi:
WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); wifi.setWifiEnabled(false);
注意:要使用WiFi状态访问,我们必须在AndroidManifest.xml文件中添加以下权限:
android.permission.ACCESS_WIFI_STATE android.permission.UPDATE_DEVICE_STATS android.permission.CHANGE_WIFI_STATE
完成解决scheme..
try { WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); WifiConfiguration wc = new WifiConfiguration(); wc.SSID = "\"SSIDName\""; wc.preSharedKey = "\"password\""; wc.hiddenSSID = true; wc.status = WifiConfiguration.Status.ENABLED; 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.RSN); boolean b=wifi.isWifiEnabled(); if(b){ wifi.setWifiEnabled(false); Toast.makeText(context,"yes", Toast.LENGTH_SHORT).show(); }else { wifi.setWifiEnabled(true); Toast.makeText(context, "no", Toast.LENGTH_SHORT).show(); } //Log.d("WifiPreference", "enableNetwork returned " + b ); } catch (Exception e) { e.printStackTrace(); }
…………………………………….. http:// amitkumar- android.blogspot.com/p/installation-steps.html
要启用禁用Wifi使用WifiManager
类来获取系统(安卓设备)的无线服务:
WifiManager wifi =(WifiManager)getSystemService(Context.WIFI_SERVICE);
现在使用WifiManager
类的对象wifi
来获得wifi状态:
if(wifi.isWifiEnabled()) //Perform Operation else //Other Operation
最重要的是别忘了在Android清单文件中给出以下权限:
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/> <uses-permission android:name="android.permission.UPDATE_DEVICE_STATS" /> <uses-permission android:name="android.permission.WAKE_LOCK" />
要获得详细的信息和项目的完整示例代码,以启用/禁用Android上的Wifi访问我的网站链接 。
在清单中添加此权限,并使用上面的代码更改WiFi状态:
<!--permission ge enable and disable WIFI in android--> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>