Reading Notes About Gesture Recognition
The PDF as follows illustrates the mechanics of Gesture Recognition. Flutter providers differents kinds of gesture recognizer which handles corresponding
pointer event, DoubleTap Recognizer dealing with double tap, i.e.. When one pointer event takes place, it will be delocated a pointer ID and a gesture arena.
The gesture arena is owned by a global mangaer called Gesture Manager. Gesture Manager is in charge of a global routers which handles the reponsibility of dispatching pointer route event
added by Gesture Recognizers. Every time a pointer event happens, the gesture manager will first dispatch the added pointer route and event and then choose to close or sweep the arena based
on its state. A more specific example of double tap is illustrated in the final part of this PDF in details.
参考
https://www.epubit.com/bookDetails?id=UB7812bd93e7e58
