[英]How to send data from IntentService to Non-Activity class
I have two Service class. 我有两个服务类。 one is
WebsocketService(extends Service)
to manage Websocket related function
and SocketMessageProcessing(extends IntentService)
to process response Received in WebSocketService
. 一个是
WebsocketService(extends Service)
来管理Websocket related function
,一个是SocketMessageProcessing(extends IntentService)
来process response Received in WebSocketService
。 From Non-Activity(SocketImpl)
class I am successfully able to send data to WebsocketService
. 从
Non-Activity(SocketImpl)
类我成功地能够将数据发送到WebsocketService
。 But I am having trouble in sending response back to SocketImpl
class from SocketMessageProcessing
class. 但是我在从
SocketMessageProcessing
类发送响应回SocketImpl
类时遇到了麻烦。
//Common Class To send data to WebsocketService and Receive response from SocketMessageProcessing Service When Work Done. I am using this class as callback.
public class SocketImpl{
private String json;
private Context mContext;
private WebServiceResponseListener mListener;
public SocketImpl(Context context, String json, WebServiceResponseListener mListener){
//Initilize variables
}
public void execute() {
//Send request to websocket
WebSocketService.sendMessage(mAdapter.getContxet(), json);
}
public void onResponse(String resp, String tag) {
//Here I would like to receive response from IntenService Class.
}
}
//This class will perform Websocket related function and it will send response to SocketMessageProcessing once response received.
public class WebSocketService extends Service {
...
private void processResponse(String message){
Intent intent = new Intent(mContext, SocketMessageProcessing.class);
intent.putExtra("DATA", message);
mContext.startService(intent);
}
}
//Intent service to Process the incoming websocket response, And Send response Back to Class Where Its originate(SocketImpl).
public class SocketMessageProcessing extends IntentService{
@Override
protected void onHandleIntent(Intent intent) {
String json = intent.getStringExtra("DATA");
//Process json and send data back to class from where request originate?
}
}
Below things I have tried so far. 以下我到目前为止尝试过的事情。
LocalBroadcastManager
As I want to receive response in Non-Activity class I don't know how to manage the register
and unregister
the BroadcastReceiver
. 因为我想在Non-Activity类中接收响应,所以我不知道如何管理
register
并unregister
BroadcastReceiver
。
Cache SocketImpl
Object and get that Object in SocketMessageProcessing
and tried calling onResponse()
. 缓存
SocketImpl
对象并在SocketMessageProcessing
获取该对象并尝试调用onResponse()
。 But I did get "sending message to a handler on a dead thread"
exception, So think it is not a good idea. 但我确实得到了
"sending message to a handler on a dead thread"
异常,所以认为这不是一个好主意。 because onResponse method perform many UI related operations. 因为onResponse方法执行许多与UI相关的操作。
Any help is appreciated. 任何帮助表示赞赏。 Thanks in advance!
提前致谢!
Option #1 that you suggested is the standard way. 您建议的选项#1是标准方式。 And you just need a context object to be able to register and unregister
而且您只需要一个上下文对象即可注册和取消注册
LocalBroadcastManager.getInstance(context).registerReceiver(...
I've just tried that in my app from a non-Activity class (using an activity context which it needs anyway) and it works fine. 我刚刚在我的应用程序中尝试了非Activity类(使用它需要的活动上下文)并且它工作正常。 I'm not sure what you mean by
我不确定你的意思
I don't know how to manage the register and unregister the BroadcastReceiver
我不知道如何管理寄存器并取消注册BroadcastReceiver
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