tree 03c9ec510dc8162033326db6110a7902c155735d
parent e8d735c70a594abdfbf9ff16ef2ccfc9b87a3635
author longyu.huang <longyu.huang@ck-telecom.com> 1430901983 -0700
committer longyu.huang <longyu.huang@ck-telecom.com> 1430902656 -0700

optimize wallpaper load,avoid show black wallpaper.

[Preconditions]
open auto-rotate

[Procedures]
1.enter Contacts app, and rotate 90 degrees to the right
2.press power key to lock screen,and unlock
3.rotare 90 degrees to the left and exit Contacts app
4.the wallpaper will be black first,then show the really wallpaper