Question

在amp-carousel的基本示例中（带有预览的图像库）有没有办法改变活动按钮的样式？所以聚焦按钮（即使在自动播放模式下）也会以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

虽然在发布之前花了我几个小时寻找方法，但我发现了解决方案：）

这可以使用amp-bind完成，将amp-bind添加到head

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

在轮播之前添加此内容

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

这是放大器轮播代码

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

如果选择了

，则将类添加到具有活动类的按钮

<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画廊活跃的缩略图

1 个答案: