Don't use transient states for wallpaper animation.
The WindowManagerService member mLowerWallpaperTarget is not stable
throughout an app transition. Relying on it to be stable causes the
intra-wallpaper animation to start out right but after the windows
have been relayed out there is no longer a lower wallpaper target.
This causes the wallpaper to start tracking the animation of the
current wallpaper target rather than remain stable.
Switching to a new variable that saves the state of wallpaper
animation at the start of the animation fixes bug 11240590.
3 files changed