Javascript 如何在TimelineMax中获取当前动画序列的进度

我正在使用timelinemax执行一系列tweens，如下所示：

this.backgroundColorTimeline = new TimelineMax({
    repeat: -1,
    yoyo: true,
    onUpdate:this.updateTimeline,
});

palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime, {
        easel: { tint: paletteColor },
    }));
});

在每个TweenMax实例运行时，我希望能够获得其进度。因此，如果我的时间轴有10个tweenmax动画，我希望在更新时获得每个动画的进度（从0到1的比例）

我看到timelinemax有一个

progress

事件，但这不会将时间除以每个动画

---

如何获取当前动画的进度？

只需使用

onUpdate

回调来跟踪每个实例的进度：

ES5方式

function getProgress () {
    var currProgress = this.progress();
}
palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime,{
        easel: { tint: paletteColor },
        onUpdate: getProgress
    }));
});

const getProgress = t {
    const currProgress = t.progress();
}
palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime,{
        easel: { tint: paletteColor },
        onUpdate: getProgress, onUpdateParams: ["{self}"]
    }));
});

---

ES6+方式

function getProgress () {
    var currProgress = this.progress();
}
palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime,{
        easel: { tint: paletteColor },
        onUpdate: getProgress
    }));
});

const getProgress = t {
    const currProgress = t.progress();
}
palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime,{
        easel: { tint: paletteColor },
        onUpdate: getProgress, onUpdateParams: ["{self}"]
    }));
});

---

只需使用

onUpdate

回调来跟踪每个实例的进度：

ES5方式

function getProgress () {
    var currProgress = this.progress();
}
palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime,{
        easel: { tint: paletteColor },
        onUpdate: getProgress
    }));
});

const getProgress = t {
    const currProgress = t.progress();
}
palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime,{
        easel: { tint: paletteColor },
        onUpdate: getProgress, onUpdateParams: ["{self}"]
    }));
});

---

ES6+方式

function getProgress () {
    var currProgress = this.progress();
}
palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime,{
        easel: { tint: paletteColor },
        onUpdate: getProgress
    }));
});

const getProgress = t {
    const currProgress = t.progress();
}
palette.bg.forEach((paletteColor) => {
    this.backgroundColorTimeline.add(TweenMax.to(this.bg, settings.colorAnimTime,{
        easel: { tint: paletteColor },
        onUpdate: getProgress, onUpdateParams: ["{self}"]
    }));
});