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小程序如何监听swiper的变化?

这里有个swiper 我设置了自动轮播 我想监听它的滑动到哪个swiper-item了 应该怎么监听?有个current属性 但是不能像vue那样监听

<swiper circular="true" autoplay="true" interval="3000" duration="500" class="sw">
    <swiper-item class="item1">
    </swiper-item>
    <swiper-item class="item2">
    </swiper-item>
</swiper>

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by (71.8m points)

你不触发它内部也会触发change事件的,你想取current的值就写一个函数就好了。
image.png

<swiper bindchange="changeEvent"> </swiper>

changeEvent(e) {
    console.log(e.detail.current, 'current')
 }

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