Androidpn学习与使用5

connectivityReceiver = new ConnectivityReceiver(this);

这个类也是继承了BroadCastReceiver类，看他的onReceive方法就好：

 @Override
    public void onReceive(Context context, Intent intent) {
        Log.d(LOGTAG, "ConnectivityReceiver.onReceive()...");
        String action = intent.getAction();
        Log.d(LOGTAG, "action=" + action);

        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();

        if (networkInfo != null) {
            Log.d(LOGTAG, "Network Type  = " + networkInfo.getTypeName());
            Log.d(LOGTAG, "Network State = " + networkInfo.getState());
            if (networkInfo.isConnected()) {
                Log.i(LOGTAG, "Network connected");
                notificationService.connect();
            }
        } else {
            Log.e(LOGTAG, "Network unavailable");
            notificationService.disconnect();
        }
    }

主要就是输出一下网络的连接形式，网络状态，如果网络连接正常，就connetct,否则disconnect。

看看connnect方法。