Android GCM将令牌发送到服务器

Question

GCM Sample Project提供了一个向您的服务器发送GCM令牌的简略示例：

public class RegistrationIntentService extends IntentService {

    ...

    @Override
    protected void onHandleIntent(Intent intent) {
        try {
            ...
            String token = instanceID.getToken(getString(R.string.gcm_defaultSenderId),
                    GoogleCloudMessaging.INSTANCE_ID_SCOPE, null);

            Log.i(TAG, "GCM Registration Token: " + token);

            // TODO: Implement this method to send any registration to your app's servers.
            sendRegistrationToServer(token);
            ...
        } catch (Exception e) {
            ...
        }
    }

    /**
     * Persist registration to third-party servers.
     *
     * Modify this method to associate the user's GCM registration token with any server-side account
     * maintained by your application.
     *
     * @param token The new token.
     */
    private void sendRegistrationToServer(String token) {
        // Add custom implementation, as needed.
    }
}

但是这是在IntentService中完成的，只要onHandleIntent返回就完成了吗？因此，如果启动http调用以使用热门android-async-http库发送令牌，我甚至不会看到onStart点击：

private void sendRegistrationToServer(String token) {
    post("/devices", params, new AsyncHttpResponseHandler() {
        // TODO: MAKE SURE ONSTART ACTUALLY CALLED TO MAKE SURE REQUEST AT LEAST GOES UPSTREAM EVEN IF I DON'T RECEIVE A CALLBACK SINCE IN INTENTSERVICE
        // IF NOT THEN MIGHT HAVE TO CHANGE THE INTENTSERVICE TO A SERVICE FOR DEVICE REGISTRATION
        @Override
        public void onStart() {
            // not actually using callback because request sent from intentservice
            Log.d("tagzzz", "sending upstream");
        }

        @Override
        public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
            // not actually using callback because request sent from intentservice
        }

        @Override
        public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {
            // not actually using callback because request sent from intentservice
        }
    });
}

我的http请求是否会在onHandleIntent返回并完成IntentService之前向上游发送？如果没有，为什么Google会将此作为将您的令牌发送到服务器的示例？