uniApp中uView组件库的丰富布局方法-编程知识

基本使用

#分栏间隔

#混合布局

#分栏偏移

#对齐方式

API

#Row Props

#Col Props

#Row Events

#Col Events

UniApp的uView组件库是一个丰富的UI组件库，提供了各种常用的UI组件和布局方法，帮助开发者快速构建美观、灵活的界面。下面给你写一篇关于uView组件库的布局方法的博客：

基本使用

通过col组件的span设置需要分栏的比例

<template><view class="u-page"><view class="u-demo-block"><text class="u-demo-block__title">基础使用</text><view class="u-demo-block__content"><u-row customStyle="margin-bottom: 10px"><u-col span="6"><view class="demo-layout bg-purple-light"></view></u-col><u-col span="6"><view class="demo-layout bg-purple"></view></u-col></u-row><u-row customStyle="margin-bottom: 10px"><u-col span="4"><view class="demo-layout bg-purple"></view></u-col><u-col span="4"><view class="demo-layout bg-purple-light"></view></u-col><u-col span="4"><view class="demo-layout bg-purple-dark"></view></u-col></u-row><u-row justify="space-between"><u-col span="3"><view class="demo-layout bg-purple"></view></u-col><u-col span="3"><view class="demo-layout bg-purple-light"></view></u-col><u-col span="3"><view class="demo-layout bg-purple"></view></u-col><u-col span="3"><view class="demo-layout bg-purple-light"></view></u-col></u-row></view></view></view>
</template><style lang="scss">.wrap {padding: 12px;}.demo-layout {height: 25px;border-radius: 4px;}.bg-purple {background: #CED7E1;}.bg-purple-light {background: #e5e9f2;}.bg-purple-dark {background: #99a9bf;}
</style>

#分栏间隔

通过设置row组件的gutter参数，来指定每一栏之间的间隔(最终表现为左边内边距各为gutter/2)，默认间隔为0

<view class="u-demo-block__content"><u-rowjustify="space-between"gutter="10"><u-col span="3"><view class="demo-layout bg-purple"></view></u-col><u-col span="3"><view class="demo-layout bg-purple-light"></view></u-col><u-col span="3"><view class="demo-layout bg-purple"></view></u-col><u-col span="3"><view class="demo-layout bg-purple-light"></view></u-col></u-row>
</view><style lang="scss">.wrap {padding: 12px;}.demo-layout {height: 25px;border-radius: 4px;}.bg-purple {background: #CED7E1;}.bg-purple-light {background: #e5e9f2;}.bg-purple-dark {background: #99a9bf;}
</style>

#混合布局

通过指定col组件的span属性，指定不同的值，达到不同的比例

<view class="u-demo-block__content"><u-rowjustify="space-between"gutter="10"><u-col span="2"><view class="demo-layout bg-purple-light"></view></u-col><u-col span="4"><view class="demo-layout bg-purple"></view></u-col><u-col span="6"><view class="demo-layout bg-purple-dark"></view></u-col></u-row>
</view><style lang="scss">.wrap {padding: 12px;}.demo-layout {height: 25px;border-radius: 4px;}.bg-purple {background: #CED7E1;}.bg-purple-light {background: #e5e9f2;}.bg-purple-dark {background: #99a9bf;}
</style>

#分栏偏移

通过指定col组件的offset属性可以指定分栏偏移的栏数。

<view class="u-demo-block__content"><u-rowjustify="space-between"customStyle="margin-bottom: 10px"><u-colspan="3"offset="3"><view class="demo-layout bg-purple-light"></view></u-col><u-colspan="3"offset="3"><view class="demo-layout bg-purple"></view></u-col></u-row><u-row><u-col span="3"><view class="demo-layout bg-purple-light"></view></u-col><u-colspan="3"offset="3"><view class="demo-layout bg-purple"></view></u-col></u-row>
</view>

#对齐方式

通过row组件的justify来对分栏进行灵活的对齐，可选值为start(或flex-start)、end(或flex-end)、center、around(或space-around)、between(或space-between)，其最终的表现类似于css的justify-content属性。

注意：由于持微信小程序编译后的特殊结构，此方式不支持微信小程序。

<view class="u-demo-block__content"><u-rowjustify="space-between"customStyle="margin-bottom: 10px"><u-colspan="3"><view class="demo-layout bg-purple-light"></view></u-col><u-colspan="3"><view class="demo-layout bg-purple"></view></u-col></u-row><u-row><u-col span="3"><view class="demo-layout bg-purple-light"></view></u-col><u-colspan="3"><view class="demo-layout bg-purple"></view></u-col></u-row>
</view>

API

#Row Props

参数	说明	类型	默认值	可选值
gutter	栅格间隔，左右各为此值的一半，单位任意	String \| Number	0	-
justify	水平排列方式(微信小程序暂不支持)	String	`start`(或`flex-start`)	`end`(或`flex-end`) / `center` / `around`(或`space-around`) / `between`(或`space-between`)
align	垂直排列方式	String	center	top / bottom

#Col Props

参数	说明	类型	默认值	可选值
span	栅格占据的列数，总12等分	String \| Number	0	1-12
offset	分栏左边偏移，计算方式与`span`相同	String \| Number	0	-
justify	水平排列方式	String	start	`start`(或`flex-start`)、`end`(或`flex-end`)、`center`、`around`(或`space-around`)、`between`(或`space-between`)
align	垂直对齐方式	String	stretch	`top`、`center`、`bottom`、`stretch`
textAlign	文字水平对齐方式	String	left	center / right