amp-carousel 画廊活动缩略图

Question

在 amp-carousel 的基本示例中（带预览的图片库）有没有办法改变活动按钮的风格？所以焦点按钮（即使在自动播放模式下）以 css 样式

突出显示

<amp-carousel id="carousel-with-preview"  width="400" height="300" layout="responsive" type="slides" autoplay>
<amp-img src="https://unsplash.it/400/300?image=10" width="400" height="300" layout="responsive" alt="a sample image"></amp-img>
<amp-img src="https://unsplash.it/400/300?image=11" width="400" height="300" layout="responsive" alt="a sample image"></amp-img>
<amp-img src="https://unsplash.it/400/300?image=12" width="400" height="300" layout="responsive" alt="a sample image"></amp-img>
<amp-img src="https://unsplash.it/400/300?image=13" width="400" height="300" layout="responsive" alt="a sample image"></amp-img>
</amp-carousel>
<div class="carousel-preview">
<button on="tap:carousel-with-preview.goToSlide(index=0)"><amp-img src="https://unsplash.it/60/40?image=10" width="60" height="40" layout="responsive" alt="a sample image"></amp-img></button>
<button on="tap:carousel-with-preview.goToSlide(index=1)"><amp-img src="https://unsplash.it/60/40?image=11" width="60" height="40" layout="responsive" alt="a sample image"></amp-img></button>
<button on="tap:carousel-with-preview.goToSlide(index=2)"><amp-img src="https://unsplash.it/60/40?image=12" width="60" height="40" layout="responsive" alt="a sample image"></amp-img></button>
<button on="tap:carousel-with-preview.goToSlide(index=3)"><amp-img src="https://unsplash.it/60/40?image=13" width="60" height="40" layout="responsive" alt="a sample image"></amp-img></button>
</div>

Answer 1

尽管我在发帖前花了几个小时寻找方法，但我在发帖后立即找到了解决方案:)

这可以使用 amp-bind 完成，将 amp-bind 添加到头部

<script async custom-element=\"amp-bind\" src=\"https://cdn.ampproject.org/v0/amp-bind-0.1.js\"></script>

在轮播之前添加这个

<amp-state id="selected"><script type="application/json"> {"slide": 0} </script></amp-state>

并将此添加到 amp-carousel 代码

on="slideChange:AMP.setState({selected: {slide: event.index}})"

将 class 添加到活动按钮 class 如果选中

<div class="carousel-preview">
<button [class]="selected.slide == 0 ? 'active' : ''" class="active" on="tap:carousel-with-preview.goToSlide(index=0)">title1</button>
<button [class]="selected.slide == 1 ? 'active' : ''" on="tap:carousel-with-preview.goToSlide(index=1)">title2</button>
<button [class]="selected.slide == 2 ? 'active' : ''" on="tap:carousel-with-preview.goToSlide(index=2)">title3</button>
<button [class]="selected.slide == 3 ? 'active' : ''" on="tap:carousel-with-preview.goToSlide(index=3)">title4</button>
<button [class]="selected.slide == 4 ? 'active' : ''" on="tap:carousel-with-preview.goToSlide(index=4)">title5</button>
</div>

amp-carousel 画廊活动缩略图

amp-carousel galleries active thumbnail

amp-html