ActivityStackSuperVisor
PhoneStatusBartoggleSplitScreenMode(xxx)
moveTaskToStackLocked(xxx)
StackDevider流程frameworks/base/package/SystemUIframeworks/base/services/core/java/com/android/server/am or wm
RecentsImpldockTopTask(xxx)
RecentsdockTopTask(xxx)
ActivityManagerServicemoveTaskToDockStack(xxx)
WindowManagerServicemoveTaskToStack(xxx)
resizeTaskLocked(xxx)
moveTaskToStackUncheckedLocked(xxx)
