Determinate if the WallpaperService was ran by the app or Android-CodePudding

Within the app, I call an intent to open the Android Native Live Wallpaper Preview Screen like this:

    val intent = Intent( WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER )
    intent.putExtra( WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT,
        ComponentName(
            this,
            RendererWallpaperService::class.java
        )
    )
    intent.putExtra( "testtt", 123 )
    intent.flags = Intent.FLAG_ACTIVITY_CLEAR_TOP
    startActivity( intent )

And my RendererWallpaperService looks like this:

class RendererWallpaperService : WallpaperService()
{
    private var inputSensory : InputSensory?= null

    override fun onCreateEngine(): Engine
    {
        return GLESEngine()
    }

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        return super.onStartCommand(intent, flags, startId)
    }

    override fun onCreate() {
        super.onCreate()
    }

    internal inner class GLESEngine : GLEngine()
    {
      ....
    }
}

The problem is that I can't access the 'testtt' Extra from the intent from within the RendererWallpaperService. The getIntent method is available in Activity and since this is an WallpaperService class, there's no such method.

I was hoping to get the intent from the onStartCommand, but it never gets called ether (but the wallpaper works).

All I want to do is to be able to distinguish if the Native Live Wallpaper Preview Screen was called from within the app or from Android->Live Wallpapers section. I was hoping to simply pass the flag over the intent and that way I would know it was called from the app, otherwise if this flag is missing, then user opened the wallpaper through the android native UI.

How can I read the value from the intent or maybe there's a better way to determinate if the RendererWallpaperService was ran from the app itself or from native android wallpaper selection screen? Thank you!

CodePudding user response：

Here's an easy hack:

private val changeWasOurs = false

class RendererWallpaperService : WallpaperService()
{
  companion object {
    fun setWasOurs() {
        changeWasOurs = true
    }
  }
}

The variable will be set to true when it was our change, and you can then skip it. Remember to set the variable to false when done with each onStartCommand.

CodePudding user response：

WallpaperService.Engine has a method isPreview() specifically to distinguish between the case where the user is previewing your live wallpaper in the ACTION_CHANGE_LIVE_WALLPAPER activity and the case where your live wallpaper is the active wallpaper for the device.