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2025-10-27 15:55:29 +08:00
commit 6632080b83
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<!-- 回到顶部的按钮 -->
<template>
<image
class="mescroll-totop"
:class="[value ? 'mescroll-totop-in' : 'mescroll-totop-out']"
:src="$util.img('public/uniapp/common/mescroll-totop.png')"
mode="widthFix"
@click="toTopClick"
/>
</template>
<script>
export default {
data() {
return {
value: true
};
},
methods: {
toTopClick() {
this.$emit('toTop'); // 派发点击事件
}
}
};
</script>
<style>
/* 回到顶部的按钮 */
.mescroll-totop {
z-index: 99;
position: fixed !important; /* 加上important避免编译到H5,在多mescroll中定位失效 */
right: 46rpx !important;
bottom: 272rpx !important;
width: 72rpx;
height: 72rpx;
border-radius: 50%;
opacity: 0;
transition: opacity 0.5s; /* 过渡 */
margin-bottom: var(--window-bottom); /* css变量 */
}
/* 适配 iPhoneX */
.mescroll-safe-bottom {
margin-bottom: calc(var(--window-bottom) + constant(safe-area-inset-bottom)); /* window-bottom + 适配 iPhoneX */
margin-bottom: calc(var(--window-bottom) + env(safe-area-inset-bottom));
}
/* 显示 -- 淡入 */
.mescroll-totop-in {
opacity: 1;
}
/* 隐藏 -- 淡出且不接收事件*/
.mescroll-totop-out {
opacity: 0;
pointer-events: none;
}
</style>