<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />        <receiver android:name=".NetworkConnectionChangeReceiver"             android:enabled="true"              android:exported="false">            <intent-filter>                <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>            </intent-filter>        </receiver>




import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.net.NetworkInfo.State;public class NetworkConnectionChangeReceiver extends BroadcastReceiver {  @Override  public void onReceive(Context context, Intent intent) {    Intent myIntent = new Intent(context, WAMPClient.class);        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);    NetworkInfo info = cm.getActiveNetworkInfo();        if (null != info) {      State state = info.getState();      if (State.CONNECTED == state) {        // connected to network        context.startService(myIntent);      }    }    else {
      // network connection lost      context.stopService(myIntent);    }  }}
   
                                                                                             







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