如何将数据从服务到活动的地方回调的参与？ [英] How to Get data from Service to Activity where Callback is Involved?
问题描述
下面的情景，
-
我想从服务到活动获得的数据
I want to get Data from the Service to Activity
每当服务获取新数据从服务器，下面的函数（回调）会导致自动调用
Whenever The Service gets new data from the server, the following function(callback) gets automatically called
公共无效publishArrived（等等，等等）{
//一些操作在这里
}
public void publishArrived(blah, blah) {
//some operation here
}
- 如何我得到上述功能回到我的活动得到的数据？ （我想我应该使用使者在这里，但我不能够把握的概念）
- How to I get the Data got from the above function back to my activity ? (I think I am supposed to use "Messenger" here but i am not able to grasp the concept)
背景：在我的活动我执行其成功取决于到达publishArrived上述结果的登录操作
CONTEXT: In my activity i Perform a Login operation whose success depends on the above result that arrives in publishArrived.
在此先感谢。
推荐答案
假设你需要开始在同一时间的活动和服务（而不是您收到的数据在服务启动后的活动），你可以注册一个BroadcastReceiver在您的活动，然后从该服务发送广播消息，一旦你拥有的数据。
Assuming that you need to start the activity and service at the same time (rather than start the activity after you receive data in the service) you can register a BroadcastReceiver in your activity, and then send a broadcast message from the service once you have the data.
在code注册在活动的广播接收机将与此类似，但你可以定义自己的自定义消息：
http://stackoverflow.com/a/2959290/483708
The code to register a broadcast receiver in your activity will be similar to this, but you'll be defining your own custom message:
http://stackoverflow.com/a/2959290/483708
要发送从你的服务，你将使用这个自定义的播放（从 HTTP解除：//www.vogella.de/articles/AndroidServices/article.html ）：
To send a custom broadcasts from your service you'll be using this (lifted from http://www.vogella.de/articles/AndroidServices/article.html):
Intent intent = new Intent();
intent.setAction("de.vogella.android.mybroadcast");
sendBroadcast(intent);
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