如何同时执行拖动和点击

Question

我正在用Flame开发一款流畅的游戏，在实现控制器时遇到了问题。控制器基本上是操纵杆和按钮atack。我需要操纵杆上的panStart，panUpdate和panEnd手势，以及进攻按钮onTapUp和onTapDown。但是我不能同时做两个，只能一次做一个手势

MultiTapGestureRecognizer tapper = MultiTapGestureRecognizer();
PanGestureRecognizer panGesture = PanGestureRecognizer();

panGesture.onEnd = game.onPanEnd;
panGesture.onUpdate = game.onPanUpdate;
panGesture.onStart = game.onPanStart;
panGesture.onCancel = game.onPanCancel;
tapper.onTapDown = game.onTapDown;
tapper.onTapUp = game.onTapUp;
tapper.onTapCancel = game.onTapCancel;
flameUtil.addGestureRecognizer(tapper);
flameUtil.addGestureRecognizer(panGesture);

Answer 1

[而不是使用GestureRecognizers，而是直接在游戏类上使用PanDetector和TapDetector mixins，并覆盖所需的方法。

class MyGame extends BaseGame with TapDetector, PanDetector {

  MyGame();

  @override
  void onTap() {}

  @override
  void onTapCancel() {}

  @override
  void onTapDown(TapDownDetails details) {}

  @override
  void onTapUp(TapUpDetails details) {}

  @override
  void onPanDown(DragDownDetails details) {}

  @override
  void onPanStart(DragStartDetails details) {}

  @override
  void onPanUpdate(DragUpdateDetails details) {}

  @override
  void onPanEnd(DragEndDetails details) {}

  @override
  void onPanCancel() {}
}