6行代码实现微信小程序页面返回顶部效果

本文实例为大家分享了微信小程序页面返回顶部的具体代码,供大家参考,具体内容如下

效果预览:

js部分:

Page({

data: {

topNum: 0

},

returnTop: function () {

this.setData({

topNum: this.data.topNum = 0

});

}

})

wxml部分:

<scroll-view scroll-y scroll-with-animation='true' scroll-top='{{ topNum }}'>

<view>1</view>

<view>1</view>

<view>1</view>

<view>1</view>

<view>1</view>

<view>1</view>

<view>1</view>

<view>1</view>

<view>1</view>

<view>1</view>

</scroll-view>

<view class='top' catchtap='returnTop'>顶部</view>

wxss部分:

page{

width: 100%;

height: 100%;

}

scroll-view{

height: 100%;

width: 100%;

}

view{

width: 100%;

height: 200px;

text-align: center;

line-height: 200px;

font-weight: 600;

}

view:nth-child(odd){

background-color: red;

}

.top{

width: 50px;

height: 50px;

position: fixed;

right: 10px;

bottom: 10px;

z-index: 1;

background-color: yellow;

color: red;

text-align: center;

line-height: 50px;

}

以上是 6行代码实现微信小程序页面返回顶部效果 的全部内容, 来源链接: utcz.com/z/332897.html

回到顶部