A.MSG_CHECK_FOCUS
B.MSG_DISPATCH_DRAG_EVENT
C.MSG_UPDATE_CONFIGURATION
D.MSG_DISPATCH_INPUT_EVENT

A.收尾阶段
B.整合阶段
C.启动阶段
D.预测量阶段

A.PUTMeasuredWidth（）/Height（）获得
B.PostMeasuredWidth（）/Height（）获得
C.getMeasuredWidth（）/Height（）获得
D.huodeMeasuredWidth（）/Height（）获得

A.performTraverasls
B.perfromTraversals
C.performTraversals
D.performTreversals

A.Choreographer.getInstance（）.postFrameCallback（）
B.Choreagrapher.getInstance（）.postFrameCallback（）
C.Choreogrepher.getInstance（）.postFrameCallback（）
D.Choreographer.getInstance（）.postFremaCallback（）

A.ViewRootImpl.schaduleTraversals
B.ViewRootImpl.scheduleTraversals
C.ViewRootImpl.scheduleTiaversals
D.ViewRootImpl.schiduleTraversals

A.Choreographer.FrameHandler
B.Choreogrepher.FrameHandler
C.Choreagrapher.FrameHandler
D.Chareographer.FrameHandler

A.ViewRootHandlers
B.ViewRootHandler
C.ViowRootHandler
D.ViewRootHabdler

A.view.postDelayed（）
B.view.getDelayed（）
C.view.postDalayed（）
D.view.postDelayerd（）

A.ViewRootHandlr
B.RootHandler
C.ViewHandler
D.ViewRootHandler

A.ViewRootImpl
B.ViewsRootImpl
C.ViewerRootImpl
D.ViewRootImpI