This issue has come up a number of times before. What you need to
do is to define another aidl interface that is a 'callback' interface
that contains the methods that you want to go from your service to
your activity. Add a 'registerCallback' method to your existent aidl
interface which registers this interface as a call back from the
service. You then implement this interface in your activity. Your
service will need to have a RemoteCallbackList defined, so that the
callback can be registered. In the sdk examples the 'remote service'
sample is an example of how to do this. It does work, I have this
working in several different applications now.
Add a reference for your callback interface in your service. Have an
implentation of the callback in your activity. Add a registerCallback
() method to your current interface that might look something like
this in your service class:
MyInterface.Stub cInterface = new MyInterface.Stub()
{
public void registerCallback(MyCallback callback)
{
System.out.println("Registering Callback:
"+callback.toString());
my_service.this.mycallback=callback;
mCallbacks.register(my_service.this.callback);
System.out.println("Callback Registered:");
}
where mycallback is reference to the callback implmentation and
mCallbacks is a RemoteCallbackList. Check the 'remote service' example
also to the full code.
Mark
On Nov 24, 7:50 am, G <ghack...@gmail.com> wrote:
> After a long working weekend I finally have a grasp on how activities
> bind to services (as well as how services outlive the activities that
> started them). But it seems that through binding, the communication is
> only 1-way (Activity -> Service). How can my service notify my
> activity of something? Do I need to define a BroadcastReceiver and
> sendBroadcast() from my service or is there an easier way to do it
> while the Service and Activity are binded?
>
> (This is a Remote Service btw, and if you're going to tell me to use a
> Handler, please please please include a link to a tutorial or some
> good sample code, cause I can't seem to find any)
>
> Thanks in advance :)
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