clearCachedData cmdViewHandle coreView createDynamicShapeView getGestureEnabled getMainView getView onPause onResume onTap onTouchDrag setBackgroundDrawable setContextActionEnabled setGestureEnabled setOnCommandChangedListener setOnContentChangedListener setOnContextActionListener setOnDynamicChangedListener setOnDynDrawEndedListener setOnFirstRegenListener setOnGestureListener setOnSelectionChangedListener setOnShapeClickedListener setOnShapeDblClickedListener setOnShapeDeletedListener setOnShapesRecordedListener setOnShapeWillDeleteListener setOnZoomChangedListener snapshot snapshot stop

setOnContentChangedListener() void rhcad.touchvg.IGraphView.setOnContentChangedListener ( OnContentChangedListener  listener ) 添加图形数据改变的观察者 在 rhcad.touchvg.view.SFGraphView , 以及 rhcad.touchvg.view.StdGraphView 内被实现.