createTweens method
Build the animations driven by controller. Called from initState
after controller has been created.
Implementation
@override
void createTweens() {
final CurvedAnimation curved =
CurvedAnimation(parent: controller, curve: widget.curve);
_scale = TweenSequence<double>(<TweenSequenceItem<double>>[
TweenSequenceItem(tween: Tween(begin: 0.3, end: 1.1), weight: 20),
TweenSequenceItem(tween: Tween(begin: 1.1, end: 0.9), weight: 20),
TweenSequenceItem(tween: Tween(begin: 0.9, end: 1.03), weight: 20),
TweenSequenceItem(tween: Tween(begin: 1.03, end: 0.97), weight: 20),
TweenSequenceItem(tween: Tween(begin: 0.97, end: 1.0), weight: 20),
]).animate(curved);
_opacity = TweenSequence<double>(<TweenSequenceItem<double>>[
TweenSequenceItem(tween: Tween(begin: 0.0, end: 1.0), weight: 60),
TweenSequenceItem(tween: Tween(begin: 1.0, end: 1.0), weight: 40),
]).animate(curved);
}