wxml:
<view class="one-click-top" bindtap="oneClickTop" wx:if='{{scrollTop > 750}}'>
<image class="one-click-top-icon" src="https://eventimg.oss-cn-shenzhen.aliyuncs.com/activity_applet/top_icon.png"></image>
</view>
js:
// 一鍵置頂
onPageScroll: function (res) {
// 頁面滾動監聽
let that = this
setTimeout(function () {
// 節流
that.setData({
scrollTop : res.scrollTop
})
}, 100)
},
oneClickTop(e){
if(wx.pageScrollTo){
wx.pageScrollTo({
scrollTop: 0,
})
}else{
wx.showModal({
title: '提示',
content:'當前微信版本過低,無法使用該功能,請升級到最新微信版本後重試'
})
}
},