One possible solution is to use a Handler / Runnable combo.
http://developer.android.com/reference/android/os/Handler.html
Before you start the worker thread (and therefore executing the UI
thread), get the thread's Hander object (use the default constructor for
that) and make it available to the worker thread.
In the worker thread, use a subclass of Runnable (can be a anonymous
inner class) with Handler.post.
-- Kostya
02.09.2010 10:22, kukukk пишет:
Thank you!
I have successfully implemented a background service communicating
with more activities using BroadcasReceiver. In this service I start a
new thread for soket communication. Now my question is: what is the
best way to communicate between the newly created thread and the
service (I want to send back to the service the message received from
tcp server)? I have implemented the new thread class as an inner
class, so I can access members and methods from service class. It is
working, but it is the right way to do this?
On Sep 1, 10:05 pm, Jeremy Wadsack<[email protected]> wrote:
Probably the best path to take would be to move your thread into a
Service<http://developer.android.com/reference/android/app/Service.html>.
Then use
Intents<http://developer.android.com/guide/topics/intents/intents-filters.html>or
binding to connect activities to the service. Similarly you can have
the
service broadcast intents and use a
BroadcastReceiver<http://developer.android.com/reference/android/content/BroadcastRecei...>with
an
IntenetFilter<http://developer.android.com/guide/topics/intents/intents-filters.html>to
listen for those messages from the service.
Have a look at the Application
Fundamentals<http://developer.android.com/guide/topics/fundamentals.html>in
the Dev Guide and the sample code that ships with the SDK for examples
of
how to do this.
--
Jeremy Wadsack
On Sun, Aug 29, 2010 at 12:16 PM, kukukk<[email protected]> wrote:
Hy!
I want to create an application to remote control my PC. For example:
Volume (get actual volume level, increase/decrease/mute volume),
TVtime (start/quit tvtime, get actual channel, toggle fulscreen,
channel up/down, toggle input source, toggle aspect ratio), Amarok
(start/quit amarok, get current song, prev/next song, play/stop/
pause), etc.
The application for the PC is done (in python).
The communication protocol used is very simple. For example:
"volume:get_level", "volume:up", "volume:mute", etc.
Now I'm working on the android application. What I have implemented
till now is to create an activity, with:
- an edittext to enter host:port
- a button to connect/disconnect to/from server
- the onCreate method creates a new thread for socket communication to
send/receive messages to/from PC.
- a textview to display information received from PC (eg. volume
level)
- a button to send command to PC
I'm using handler to communicate between the tcpclient thread and the
main activity. It is working...
But I want to use more than 1 activity. I want to use different
activity for every program controlled. Searching for a solution to
transfer the thread's handler to a new activity I have found that it
is not possible, and I have to use a service.
So, my question is: how to send message from different activities to
the same service, how to send message from service to the actual
activity and how can I check in the service which is the actual
activity?
Because the service is running in the same thread as the activities I
suppose that I still have to create a new thread for socket
communication. How can I send the data received by the socket to the
service?
Thanks in advance,
kukukk
PS. I hope you understand my question and sorry if it is not the right
forum for it
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