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sherlock-form

v1.0.1

Published

链尚网React-Native 组件库组件:Form

Downloads

12

Readme

sherlock-form

一、简介

链尚网React-Native 组件库组件:Form

用于组织表单数据,以及获取输入项表单的值

二、安装

npm install sherlock-form --save

或者使用我们的组件库: 

npm install sherlock-mind --save
   import Form from 'sherlock-form'
   import {Form} from 'sherlock-mind';

三、用例


    import Form from 'sherlock-form';
    //或者 
    import {Form} from 'sherlock-mind'

    
    import {TextInput} from 'react-native'

    //零配置使用 使用内置的表单
    <Form.TextInput></Form.TextInput>
    <Form.Checkbox></Form.Checkbox>
    //等等 

    //方案一:包裹一个第三方表单组件
    const ITextInput =  Form.Interface(TextInput);

    //方案二:设定change与value方式包裹
    // onChange 为Checkbox 组件输入改变时,用于Interface内部同步value使用 
    // checked 为设置checkbox组件值得属性名 
    const ICheckbox = Form.Interface(ICheckbox,'onChange','checked');

    //方案三:复杂组件包裹
    const IList = Form.Interface((props,formRef)=>{
      return (<List {...props} onSelected={formRef.onNativeFormChange}  value={formRef.value} ></List>);
    })

    //方案四:继承方式实现
    class ProductNameList extends Form.ValueInterface{
        constructor(props){
          super(props);
          this.state  ={nameList:[]};
          this.setSelected = this.setSelected.bind(this);
        }
       /**
        *  重要:
              用于判断是否为输入型组件,如果是输入型组件,则在表单组件onChange时 强制渲染
              具体参见 ValueInterface 
              set value(){ 
                ...
                if(this.isInputControl){
                  this.forceUpdate();
                }
              }
              否则在onChange时不触发刷新
              从而提高性能
        */
        isInputControl = false

        componentDidMount(){
          this.remoteList().then((items)=>{
            this.setState({nameList:items});
          })
        }

        setSelected(item){
          this.value = item;
        }

        remoteList(){
          //this.contxt.form 由 <Form></Form>提供
          var data = this.context.form.getValue();
          return fetch('https://p.lianshang.com/product/name-list',{userName:data.userName});
        }

        render(){
          return (<List data={this.state.nameList} getSelected={}  selectedItem={this.value}></List>);
        }
    }
    

    class Demo extends React.Component{

      constructor(props){
        super(props);
        this.submit = this.submit.bind(this);
        this.formRef = (instance)=>{
          this.form = instance;
        }
      }

      submit(){
        var data = this.form.data;
        /**
         *  data:  {
              userName:'xxxx',
              password:'xxx',
              agreement:true/false,
              favorite:['足球','...'],
              productName:'灯芯绒'
            }
         */
      }

      render(){
            //Form: onChange 当表单容器中任意表单发生改变时触发
            //Interface: onChangeValue: 当当前表单值发生改变时触发
            <Form ref={this.formRef}  onChange={(v,item)=>...}  >
              <ITextInput name="userName" value="sss" />
              <ITextInput name="password" secureTextEntry={true}  value="sss" />
              <ICheckbox name="agreement" checked={this.state.checked}>
              <IList name="favorite" onChangeValue={(v)=>console.log(v)  }>
                <List.Item>足球</List.Item>
                <List.Item>篮球</List.Item>
                <List.Item>皮球</List.Item>
              </IList>
              <ProductNameList name="productName" />
              <Button onPress={this.submit}>
          </Form>
      }
    }

四、开源许可

基于 MIT License 开源,使用代码只需说明来源,或者引用 license.txt 即可。