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将组件放到某个组件的children里面无法获取ref #4527

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pollux2015 opened this issue Sep 24, 2019 · 1 comment
Closed

将组件放到某个组件的children里面无法获取ref #4527

pollux2015 opened this issue Sep 24, 2019 · 1 comment

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@pollux2015
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问题描述
将目标组件放入到 某个组件的children里面无法触发函数创建 ref 如下

复现步骤

import Taro, { Component } from '@tarojs/taro'
import { View, Swiper, SwiperItem } from '@tarojs/components'

class PaperCreate extends Component {
  
  refQues = node => {
    this.questionRefs = this.questionRefs || []
    this.questionRefs.push(node)
    console.log(node)
  }

  render() {
    
    return (
      <View className='page-create-wrapper'>
     
        <Swiper
          className='page-create-content'
          indicatorDots
        >
          <SwiperItem>
            <View className='swiper-content'>
              <QuesStart

                /*  这里是OK的  */
                ref={this.refQues}
                edit
                {...base}
                onSubmit={this.onSubmitStart.bind(this)}
              />
            </View>
          </SwiperItem>

          {questions.map((item, index) => (

           /*  这里是OK的  */
            <SwiperItem key={item.qkey} ref={this.refQues}>
              <QuesType
                edit
                {...item}
                number={index + 1}

               /*********  这个地方不会触发  **********/
                ref={this.refQues}
                onSubmit={this.onSubmitQuestion.bind(this)}
              />
            </SwiperItem>
          ))}
        </Swiper>
      </View>
    )
  }
}

export default PaperCreate

期望行为
可以触发ref函数

报错信息

image

image

系统信息

Taro v1.2 及以上版本已添加 taro info 命令,方便大家查看系统及依赖信息,运行该命令后将结果贴下面即可。

  • 操作系统: [e.g. mac os]
  • Taro 版本 [e.g. v.1.3.18]
  • Node.js 版本 [e.g. v10.13.0]
  • 报错平台 [weapp]

补充信息
{questions.map((item, index) => {})} 外面有一层循环, 是这个引起的??

@taro-bot
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taro-bot bot commented Sep 24, 2019

欢迎提交 Issue~

如果你提交的是 bug 报告,请务必遵循 Issue 模板的规范,尽量用简洁的语言描述你的问题,最好能提供一个稳定简单的复现。🙏🙏🙏

如果你的信息提供过于模糊或不足,或者已经其他 issue 已经存在相关内容,你的 issue 有可能会被关闭。

Good luck and happy coding~

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