tween

ZKTween

TIP

ZKTween is a easing animation processing class.

CODE:

ZKTween(text.position)
	.to({"x": event.dx, "y": event.dy}, 2000)
    .easing(Ease.elastic.easeOut)
    .onUpdate((obj) {
    	node1.rotation++;
    })
    .start();

ZKTween(node1)
    .to({
    	"x": event.dx + 100,
    	"y": event.dy + 100,
    	"scaleX": Random().nextDouble() * 2,
    	"scaleY": Random().nextDouble() * 2
    }, 1000)
    .easing(Ease.back.easeInOut)
    .start();

Constructor

• ZKTween(dynamic target)

Methods

• ZKTween to(Map<String, dynamic> properties, [int duration = 1000])

  • Adds a tween from the current values to the specified properties. Set duration to 0 to jump to these value.

• ZKTween start([time])

  • Start easing animation.

• ZKTween stop()

  • Stop easing animation.

• ZKTween delay(int amount)

  • Set the delay animation time.

• ZKTween easing(easing)

  • Set easing animation.

• ZKTween chain(ZKTween chainedTween)

  • Execute the second animation in sequence.

• ZKTween onUpdate(Function onUpdateCallback)

  • Update simultaneous execution function.

• ZKTween onComplete(Function onCompleteCallback)

  • Complete simultaneous execution function.

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Ease

TIP

Various easing functions

Static Properties

class Ease {
  static BaseEasing linear = Linear();
  static BaseEasing quad = Quad();
  static BaseEasing cubic = Cubic();
  static BaseEasing quart = Quart();
  static BaseEasing quint = Quint();
  static BaseEasing sine = Sine();
  static BaseEasing expo = Expo();
  static BaseEasing circ = Circ();
  static BaseEasing elastic = Elastic();
  static BaseEasing back = Back();
  static BaseEasing bounce = Bounce();
}