Vant UI

Taro3 support development with Vant Weapp component liabrary. This is sample warehouse: taro3-vant-sample.

Notice：The projects which developed using native third-party component libraries, no longer has the capability of multi-terminal conversion .

How to use it?

Configure to ignore vant style size conversion

If you use the vant component directly, you will find that the style is too small. This is because Taro converts the vant style size from px to rpx by default. You can configure selectorblacklist to disable the conversion.

configuration：

// config/index.js
const config = {
  // ...
  mini: {
    postcss: {
      pxtransform: {
        enable: true,
        config: {
          selectorBlackList: [/van-/]
        }
      }
    }
  },
}

Configure copy of some native files in mini-program.

There are some dependencies on the native files of mini programs in vant component, but Taro has not analyzed these dependencies. Therefore, you need to configure copy to move these dependencies to the dist directory. For example, If you need to copy wxs and other style files, Part of the configuration is as follows:

// config/index.js
const config = {
  // ...
  copy: {
    patterns: [
      { from: 'src/components/vant-weapp/dist/wxs', to: 'dist/components/vant-weapp/dist/wxs' },
      { from: 'src/components/vant-weapp/dist/common/style', to: 'dist/components/vant-weapp/dist/common/style' },
      { from: 'src/components/vant-weapp/dist/common/index.wxss', to: 'dist/components/vant-weapp/dist/common/index.wxss' },
      { from: 'src/components/vant-weapp/dist/calendar/index.wxs', to: 'dist/components/vant-weapp/dist/calendar/index.wxs' },
      { from: 'src/components/vant-weapp/dist/calendar/utils.wxs', to: 'dist/components/vant-weapp/dist/calendar/utils.wxs' },
      { from: 'src/components/vant-weapp/dist/calendar/calendar.wxml', to: 'dist/components/vant-weapp/dist/calendar/calendar.wxml' },
      { from: 'src/components/vant-weapp/dist/calendar/components/month/index.wxs', to: 'dist/components/vant-weapp/dist/calendar/components/month/index.wxs' },
    ],
    options: {
    }
  },
}

Import vant component

First, you need to configure the usingComponents field in the app config or page config file, such as:

export default {
  navigationBarTitleText: '首页',
  usingComponents: {
    'van-button': '../../components/vant-weapp/dist/button/index'
  }
}

Then you can directly use it in your pages.

Use vant component

1. Binding properties

React

import React, { Component } from 'react'
import { View } from '@tarojs/components'

export default class Index extends Component {
  render () {
    return (
      <View>
        <van-button type='primary' loading loading-text='ing'>Button</van-button>
      </View>
    )
  }
}

Vue

<template>
  <view>
    <van-button type='primary' :loading='true' loading-text='ing'>Button</van-button>
  </view>
</template>

<script>
export default {
  name: 'index'
}
</script>

Note: If some properties of the component are written with the default value true in the vant document, they still need to be explicitly set to true when used in Taro.

2. Binding events

React

import React, { Component } from 'react'
import { View } from '@tarojs/components'

export default class Index extends Component {
  handleClick = () => {
    console.log('click')
  }

  onAfterRead = res => {
    console.log(res)
  }

  render () {
    return (
      <View>
        // corresponding bind:click event
        <van-button type='primary' onClick={this.handleClick} >Button</van-button>
        // corresponding bind:after-read event
        <van-uploader fileList={[]} onAfterRead={this.onAfterRead} />
      </View>
    )
  }
}

Vue

<template>
  <view>
    <van-button type='primary' @click='handleClick'>Button</van-button>
    <van-uploader :fileList='[]' @after-read='onAfterRead' />
  </view>
</template>

<script>
export default {
  methods: {
    handleClick () {
      console.log('click')
    },
    onAfterRead (res) {
      console.log(res)
    }
  }
}
</script>

3. Slot

React

import React, { Component } from 'react'
import { View, Slot } from '@tarojs/components'

export default class Index extends Component {
  render () {
    return (
      <View>
        <van-calendar poppable show>
          <Slot name='title'>
            <View>Hello world</View>
          </Slot>
        </van-calendar>
      </View>
    )
  }
}

Vue

<template>
  <view>
    <van-calendar :poppable='true' :show='true'>
      <slot-view :name='"title"'>
        <view>Hello world</view>
      </slot-view>
    </van-calendar>
  </view>
</template>

<script>
export default {
  name: 'index'
}
</script>