Wish Allow #Extends for service modules

[corwin42]

I'm currently trying to create a library for Android Wear watchfaces. Watchfaces in Android Wear are implemented as a service module. The Watchface Service needs to extend android.support.wearable.watchface.CanvasWatchFaceService.

My idea is to write a class that itself extends CanvasWatchFaceService and implements all needed methods for the watchface and will call some B4A Subs with raiseEvent() which will draw the watchface. In the B4A Service module I wanted to extend the class from my special service class.

Unfortunately the #Extends attribute is not supported in Service modules. So I'm stuck with my idea. Why is #Extends not supported in Services? Should be no problem if the class itself is a subclass of android.app.service.

 

[Erel]

#Extends for services can be added. However you can also implement your library right now. You need to create the service in your library and call a known B4A service.

It will probably work better then a service that extends a different class as B4A services make all kinds of assumptions that might be broken if you extend a different class.

Check the LiveWallpaper source code an an example.

 

[corwin42]

Thanks. It seems that LiveWallpapers are very similar to Watchfaces. I will give it a try this way.

 

[barx]

I believe the same thing was done in the wearable datalayer lib for the listener service...

 

[corwin42]

#Extends for services can be added. However you can also implement your library right now. You need to create the service in your library and call a known B4A service.

It will probably work better then a service that extends a different class as B4A services make all kinds of assumptions that might be broken if you extend a different class.

Check the LiveWallpaper source code an an example.

The big disadvantage with this method is that you can have only one watchface service for one app so only one watchface is possible. I need to create more than one watchface in one app. I think extending service modules will allow this.

 

[Erel]

You can use multiple services. In the case of LWP it was not needed.

There are all kinds of ways to implement it.

 

[corwin42]

I think I will open a new thread in the Libraries Development section.