wepy-redux
redux文件
- type
types里是触发action的函数名称 只是存储函数名字
按照模块去创建type.js
//base.js
export const GETALLHOMEINFO = 'GETALLHOMEINFO'
写好了函数名称 在index.js中export出来
export * from './counter'
export * from './base'
- reducers
随着应用变得复杂,需要对 reducer 函数 进行拆分,拆分后的每一块独立负责管理 state 的一部分
这个时候多个模块的reducer通过combineReducers合并成一个最终的 reducer 函数,
import { combineReducers } from 'redux'
import base from './base'
import counter from './counter'
export default combineReducers({
base,
counter
})
模块使用handleActions 来处理reducer,将多个相关的reducers写在一起
handleActions有两个参数:第一个是多个reducers,第二个是初始state
GETALLHOMEINFO reducer是将异步action返回的值赋值给data
//base.js
import { handleActions } from 'redux-actions'
import { GETALLHOMEINFO } from '../types/base'
const initialState = {
data: {}
}
export default handleActions({
[GETALLHOMEINFO] (state, action) {
return {
...state,
data: action.payload
}
}
}, initialState)
- actions
actions是对数据的处理
在index.js中export出来
export * from './counter'
export * from './base'
createAction用来创建Action的
import { GETALLHOMEINFO } from '../types/base'
import { createAction } from 'redux-actions'
import { Http, Apis } from '../../libs/interface'
export const getAllHoomInfo = createAction(GETALLHOMEINFO, (base) => {
return new Promise(async resolve => {
let data = await Http.get({
url: Apis.ls_url + Apis.allHomeInfo,
data: {}
})
resolve(data)//返回到reduer的action.payload
})
})
- 用法
<script>
import wepy from 'wepy'
import { connect } from 'wepy-redux'
import { getAllHoomInfo } from '../store/actions/base.js'// 引入action方法
import { getStore } from 'wepy-redux'
const store = getStore()
@connect({
data(state) {
return state.base.data //注意这里是base下的state 所有要加上base.
}
}, {
getAllHoomInfo
})
export default class Index extends wepy.page {
data = {
}
computed = {
}
onLoad() {
store.dispatch(getAllHoomInfo(store.getState().base))
}
}
</script>