Lập tình

package cheng.com.bai5broadcast;
 
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;
 
/**
 * Created by chien on 11/23/16.
 */
 
public class NetworkChangeReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "Network is turned ON/OF", Toast.LENGTH_SHORT).show();
    }
}