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

onTouchDrag() boolean rhcad.touchvg.IGraphView.onTouchDrag ( int  action, float  x, float  y  ) 传递单指触摸事件，可用于拖放操作 在 rhcad.touchvg.view.SFGraphView , 以及 rhcad.touchvg.view.StdGraphView 内被实现.