本文实例讲述了Android编程监听网络连接状态改变的方法。分享给大家供大家参考,具体如下:
BroadcastReceiver
public class MyReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { // TODO Auto-generated method stub //Toast.makeText(context, intent.getAction(), 1).show(); ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo mobileInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE); NetworkInfo wifiInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI); NetworkInfo activeInfo = manager.getActiveNetworkInfo(); Toast.makeText(context, "mobile:"+mobileInfo.isConnected()+"\n"+"wifi:"+wifiInfo.isConnected() +"\n"+"active:"+activeInfo.getTypeName(), 1).show(); } //如果无网络连接activeInfo为null }
在清单文件中注册 BroadcastReceiver
<receiver android:name=".MyReceiver"> <intent-filter> <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/> </intent-filter> </receiver>
要读取网络状态记得要加权限
希望本文所述对大家Android程序设计有所帮助。