async-storage-extra

AsyncStorage扩展,所有AsyncStorage中的数据都可以同步进行读写,同时数据也会被持久化.可以监听每个key的变化


Install

``bash
$ npm i @react-native-pure/async-storage-extra --save
`

Simple Usage

`
import Storage from "@react-native-pure/async-storage-extra

const User=new Storage("@user");

User.setItem("name","Mr");
User.setItem("age",10);
User.setItem("birthday",new Date());
User.setItem("other",{});

`

绑定Storage中的数据到Component

`
import * as React from "react"
import {View,Text} from "react-native"
import {storage} from "@react-native-pure/async-storage-extra

@storage(
User.connect(["name","age"],([name,age])=>({name,age}))
)
class User extends React.Component{
render(){
return (

Name : {this.props.name}
Age : {this.props.age}

);
}
}

`

$3

默认情况下,在初始化Storage时会自动从AsyncStorage中恢复数据,数据恢复完成会触发onPreload事件.

PS:当使用setItem,multiSet设置的数据和存在的数据一样时(DeepEqual),将不会触发任何事件和写操作.

- constructor (option:string|StorageOption={prefix:"@storage",preload:true})=>void
- getItem (key:string)=>any
- multiGet (keys:Array)=>Array<[key,value]>
- search (pattern:RegExp)=>Array<[key,value]>
- setItem (key:string,value:any)=>void
- multiSet (keyValuePairs:Array<[key,value]>)=>void
- removeItem (key:string)=>void
- multiRemove (keys:Array)=>void
- clear ()=>void
- getAllKeys ()=>Array
- getKeys (pattern:RegExp)=>Array
- addListener (key:string,callback:(value:any)=>void)=>Object
- once (key:string,callback:(value:any)=>void)=>Object
- removeAllListeners (key:string)=>void
- connect (keys:Array,mapStateToProps:(Array)=>Object)=>void
- restore ()=>void 从AsyncStorage中恢复数据
- release ()=>void 释放内存,Storage中的数据将不可用

$3

- prefix string
- preload boolean
- onPreload` (self:Storage)=>void