Posted in Javascript onDecember 28, 2018
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; }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持三水点靠木。
6行代码实现微信小程序页面返回顶部效果
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