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@yued/wechat-weapp-redux

v0.1.7

Published

Wechat weapp redux bindings

Downloads

9

Readme

微信小程序Redux绑定

用于在微信小程序为页面绑定Redux Store。

PS: 代码是基于react-redux修改的

安装

  1. clone或者下载代码库到本地:

     git clone https://github.com/charleyw/wechat-weapp-redux
  2. dist/wechat-weapp-redux.js(或者拷贝minify的也可以)文件直接拷贝到小程序的工程中,例如(下面假设我们把第三方包都安装在libs目录下):

     cd wechat-weapp-redux
     cp -r dist/wechat-weapp-redux.js <小程序根目录>/libs

    上面的命令将包拷贝到小程序的libs目录下

使用

  1. 将Redux Store绑定到App上。

     const store = createStore(reducer) // redux store
        
     const WeAppRedux = require('./libs/wechat-weapp-redux/index.js');
     const {Provider} = WeAppRedux;
        

    Provider是用来把Redux的store绑定到App上。

    App(Provider(store)({
      onLaunch: function () {
        console.log("onLaunch")
      }
    }))

    provider的实现只是简单的将store加到App这个global对象上,方便在页面中用getApp取出来

    上面这段代码等同于:

    App({
      onLaunch: function() {
          console.log( "onLaunch" )
        },
        store: store
    })
  2. 在页面的定义上使用connect,绑定redux store到页面上。

     const pageConfig = {
       data: {
       },
       ...
     }
    

    页面的定义

     const mapStateToData = state => ({
       todos: state.todos,
       visibilityFilter: state.visibilityFilter
     })

    定义要映射哪些state到页面

     const mapDispatchToPage = dispatch => ({
       setVisibilityFilter: filter => dispatch(setVisibilityFilter(filter)),
       toggleTodo: id => dispatch(toggleTodo(id)),
       addTodo: text => dispatch(addTodo(text)),
     })

    定义要映射哪些方法到页面

     const nextPageConfig = connect(mapStateToData, mapDispatchToPage)(pageConfig)

    使用connect将上述定义添加到pageConfig中。

     Page(nextPageConfig);

    注册小程序的页面

  3. 说明

    完成上述两步之后,你就可以在this.data中访问你在mapStateToData定义的数据了。

    mapDispatchToPage定义的action会被映射到this对象上。

Example

详细的使用例子可以参照: wechat-weapp-redux-todos

真机实测版请clone下面这个repo,用小程序开发工具开启预览:

git clone -b release https://github.com/charleyw/wechat-weapp-redux-todos.git