decorview that was originally added here or java.lang.IllegalArgumentException: View not attached to window manager

12-11 17:47:49.776: E/WindowManager(11461): android.view.WindowLeaked: Activity TestActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{42204800 V.E..... R.....I. 0,0-640,164} that was originally added here12-11 17:47:49.77