OpacityEffect.by constructor
OpacityEffect.by(
- double offset,
- EffectController controller, {
- String? paintId,
This constructor will set the opacity in relation to it's current opacity over time.
Implementation
OpacityEffect.by(
double offset,
EffectController controller, {
this.paintId,
}) : _alphaOffset = (255 * offset).round(),
super(controller);