BreathingAnimation constructor
const
BreathingAnimation({})
创建呼吸动画配置
Implementation
const BreathingAnimation({
this.enabled = true,
this.color = Colors.white,
this.duration = const Duration(seconds: 2),
this.opacityMin = 0.2,
this.opacityMax = 0.9,
this.gap = 2.0,
this.strokeWidth = 3.0,
});