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tt小程序context是undefined #3301

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BrookShuihuaLee opened this issue Jun 3, 2019 · 6 comments
Closed

tt小程序context是undefined #3301

BrookShuihuaLee opened this issue Jun 3, 2019 · 6 comments

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@BrookShuihuaLee
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问题描述
[问题描述:站在其它人的角度尽可能清晰地、简洁地把问题描述清楚]

发现1.3.0-beta.6支持了context,就试了一下。但是设置contextType之后,this.context是undefined

复现步骤
[复现问题的步骤]

import { Component } from "@tarojs/taro";
import { View } from "@tarojs/components";
import { ThemeContext } from "../dsf";

export default class Ddd extends Component {
  public static contextType = ThemeContext

  public render() {
    const value = this.context
    console.error('adsf', this.context, value)
    return (
      <View>234 {value}</View>
    )
  }
}

期望行为
[这里请用简洁清晰的语言描述你期望的行为]

context在tt小程序中应该正常工作

报错信息

[这里请贴上你的完整报错截图或文字]

系统信息

👽 Taro v1.3.0-beta.6

Taro CLI 1.3.0-beta.6 environment info:
System:
OS: macOS 10.14.5
Shell: 5.3 - /bin/zsh
Binaries:
Node: 11.10.1 - ~/.nvm/versions/node/v11.10.1/bin/node
Yarn: 1.13.0 - /usr/local/bin/yarn
npm: 6.9.0 - ~/.nvm/versions/node/v11.10.1/bin/npm
npmPackages:
@tarojs/components: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/mobx: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/mobx-h5: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/mobx-rn: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/plugin-babel: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/plugin-csso: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/plugin-less: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/plugin-uglifyjs: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/rn-runner: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/router: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/taro: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/taro-alipay: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/taro-h5: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/taro-swan: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/taro-tt: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/taro-weapp: 1.3.0-beta.6 => 1.3.0-beta.6
@tarojs/webpack-runner: 1.3.0-beta.6 => 1.3.0-beta.6
eslint-config-taro: 1.3.0-beta.6 => 1.3.0-beta.6
eslint-plugin-taro: 1.3.0-beta.6 => 1.3.0-beta.6
nervjs: ^1.4.0-beta.5 => 1.4.0-beta.5

补充信息

加油

@taro-bot
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taro-bot bot commented Jun 3, 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~

@yuche
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yuche commented Jun 3, 2019

你的 Provider 是怎么设置的

@BrookShuihuaLee
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你的 Provider 是怎么设置的

<ThemeContext.Provider value="cccs">
        <View className="index">
          <Button onClick={this.increment}>+</Button>
          <Button onClick={this.decrement}>-</Button>
          <Button onClick={this.incrementAsync}>Add Async</Button>
          <Text>{counter}</Text>

          <Ddd />
        </View>
      </ThemeContext.Provider>

@BrookShuihuaLee
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你的 Provider 是怎么设置的

我试过,编译成微信小程序没有问题。但是tt小程序就不行

@yuche
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yuche commented Jun 3, 2019

用 useContext 可以吗

@BrookShuihuaLee
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用 useContext 可以吗

可以,但是useContext不可以在componentDidMount里用,这个很难受。。。

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