number of "screens"

[boten]

Any way to know how many "home screens" are on the phone? and possibly when the number changes? (user trash/add a home screen)

 

[thedesolatesoul]

I think that would depend on the Launcher sending an intent to your app to notify it.

 

[boten]

yes. but I wish the number of screen would be something that the Phone library "knows" , so the "user" can obtain this from the Phone object.

 

[thedesolatesoul]

Here is an answer: java - Get number of Home screens in Android? - Stack Overflow
Needs some more research.

Maybe this can help you (quoted from Erel's livewallpaper tutorial):

Offsets
On most devices the wallpaper virtual size is wider than a single screen. When the user moves to a different screen the offset changes.
You can use the OffsetChanged event to handle those changes.
LWEngine.FullWallpaperWidth / Height return the full size of the wallpaper.
LWEngine.CurrentOffsetX / Y return the current position.
Note that the wallpaper scrolls less than the foreground layer with the icons.

 

[boten]

the problem is that when the uses switches to a different screen the OffsetChanged event fires in rapid succession until the new screen "comes to a rest" (see my post http://www.b4x.com/forum/basic4android-updates-questions/17114-live-wallpaper-too-sensitive.html#post97847)

 

[thedesolatesoul]

Well xOffsetStep and yOffsetStep are not exposed in B4A.
But I dont see how that will help you with much. Will you update the screen only on a page change? It does make sense.
Erel will probably have to modifiy his library to expose these.
You could also check for CurrentOffset - LastOffset > ScreenSize or something like that, I am not sure.