Question

我有这个IntentService（HttpService）从webservice中获取原始json数据：

public class HttpService extends IntentService {

    public static final String BROADCAST_ACTION = "com.example.HttpService";

    public HttpService() {
        super("HttpService");
    }

    @Override
    protected void onHandleIntent(Intent intent) {

        //code to get a String with jsonData


         //Then I send a broadcast
         Intent broadcastHttpResponseIntent = new Intent();
         broadcastHttpResponseIntent.setAction(BROADCAST_ACTION);
         broadcastHttpResponseIntent.putExtra("jsonData", jsonData);

         sendBroadcast(broadcastHttpResponseIntent);

    }
}

现在来自使用HttpService的IntentService，我试图接收广播：

public class RestaurantModel extends IntentService {

    public static final String BROADCAST_ACTION = "com.example.RestaurantModel";

    public RestaurantModel() {
        super("RestaurantModel");
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        Log.v("RestaurantModel", "onHandleIntent");

        BroadcastReceiver httpBroadcastReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                Log.v("RestaurantModel", "onReceive");

                String jsonResponse = intent.getStringExtra("jsonData");

            }
        };

        Intent getRestaurantsJsonIntent = new Intent(RestaurantModel.this, HttpService.class);
        getRestaurantsJsonIntent.putExtra("urlRestaurants", intent.getStringExtra("urlRestaurants"));
        startService(getRestaurantsJsonIntent);

        registerReceiver(httpBroadcastReceiver, new IntentFilter(HttpService.BROADCAST_ACTION));
    }
}

所以我收到了这个错误：

RestaurantModel已泄露最初在此注册的IntentReceiver com.example.RestaurantModel $ 1 @ 42374590。你是否错过了对unregisterReceiver（）的调用？

所以我尝试取消注册Receiver，但似乎需要一个Context才能取消注册接收者。

如何从IntentService接收到另一个IntentService的值？

Answer 1

最佳答案是：只有一个IntentService。

下一个最佳答案是：完全摆脱广播内容，并让第一个IntentService来电startService()启动第二个IntentService。

Answer 2

同意@CommonsWare，如果你想在IntentService中使用BroadcaseReceiver，请在onCreate方法中注册它并在onDestroy方法中取消注册。

public class RestaurantModel extends IntentService {

public static final String BROADCAST_ACTION = "com.example.RestaurantModel";

private BroadcastReceiver httpBroadcastReceiver;

public RestaurantModel() {
    super("RestaurantModel");
}

@Override
public void onCreate() {
    super.onCreate();
     httpBroadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            Log.v("RestaurantModel", "onReceive");

            String jsonResponse = intent.getStringExtra("jsonData");

        }
    };

    LocalBroadcastManager.getInstance(getApplicationContext()).registerReceiver(httpBroadcastReceiver);
}

@Override
public void onDestroy() {
    super.onDestroy();
    LocalBroadcastManager.getInstance(getApplicationContext()).unregisterReceiver(httpBroadcastReceiver);
}

@Override
protected void onHandleIntent(Intent intent) {
    Log.v("RestaurantModel", "onHandleIntent");


    Intent getRestaurantsJsonIntent = new Intent(RestaurantModel.this, HttpService.class);
    getRestaurantsJsonIntent.putExtra("urlRestaurants", intent.getStringExtra("urlRestaurants"));
    startService(getRestaurantsJsonIntent);


}

}

如何从另一个IntentService中的IntentService接收值？

2 个答案: