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我正在使用 Eclipse，android sdk 3.2 但在connection is lost.

首先我检查了网络的类型以确保我理解得很好：

ConnectivityManager manager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
            boolean is3g = manager.getNetworkInfo(
                    ConnectivityManager.TYPE_MOBILE)
                    .isConnectedOrConnecting();
            boolean isWifi = manager.getNetworkInfo(
                    ConnectivityManager.TYPE_WIFI)
                    .isConnectedOrConnecting();

            NetworkInfo info = manager.getActiveNetworkInfo();
            if (info != null)
                Toast.makeText(getApplicationContext(), info.getTypeName(),
                        Toast.LENGTH_LONG).show();
            else
                Toast.makeText(getApplicationContext(), "Pas de connexion",
                        Toast.LENGTH_LONG).show();

            if (!is3g)
                Log.i("Network Listener", "DISCONNECTED");
            else
                Log.i("Network Listener", "CONNECTED");

==> 这是一个移动网络，我已连接

然后我按 F8 或者我做：

telnet localhost 5554
gsm data off

停止连接

这是我dynamic broadcast receiver的活动：

public class ActivityA extends Activity { 
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.query);
this.registerReceiver(this.networkStateReceiver, new IntentFilter(
     ConnectivityManager.CONNECTIVITY_ACTION));

}


BroadcastReceiver networkStateReceiver = new BroadcastReceiver() {

    @Override
    public void onReceive(Context context, Intent intent) {

        ConnectivityManager connMgr = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
//i have tried several things : State networkState = networkInfo.getState();
// if (networkState.compareTo(State.DISCONNECTED) == 0) ...
        if (networkInfo != null && networkInfo.isConnected()) {
            Toast.makeText(getApplicationContext(), "CONNECTED",
                    Toast.LENGTH_LONG).show();
                   Log.i("Network Listener", "Connected");
        } else {
            Toast.makeText(getApplicationContext(), "DISCONNECTED",
                    Toast.LENGTH_LONG).show();
            Log.i("Network Listener", "Network Type Changed");
            Intent offline = new Intent(AccountInfoActivity.this,
                    OfflineWorkService.class);
            startService(offline);
        }


};

我的清单：

 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

问题是：当activityA启动时，我的广播接收到一些东西，它显示“已连接”（日志）和我的吐司。当我手动关闭连接时，什么也没发生。我的服务没有启动，日志消息没有显示，只有 toast 消息有效......

更好的是，当我再次打开连接时 ( by pressing F8)，我再次测试连接类型，显示 Toast 消息，但这次 Log 消息不起作用。按 F8 时出现问题。无论如何，我想我错过了广播接收器的一些东西，这并不完全清楚。

请帮我。

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0 回答 0