我定义了两个TextInput字段如下:

<TextInput 
   style = {styles.titleInput}
   returnKeyType = {"next"}
   autoFocus = {true}
   placeholder = "Title" />
<TextInput
   style = {styles.descriptionInput}          
   multiline = {true}
   maxLength = {200}
   placeholder = "Description" />

但在按下键盘上的“next”按钮后,我的react-native应用程序并没有跳转到第二个TextInput字段。我怎样才能做到呢?

谢谢!


当前回答

如果你的TextInput在另一个组件中,要让这个被接受的解决方案工作,你需要从ref“弹出”到父容器的引用。

// MyComponent
render() {
    <View>
        <TextInput ref={(r) => this.props.onRef(r)} { ...this.props }/>
    </View>
}

// MyView
render() {
    <MyComponent onSubmitEditing={(evt) => this.myField2.focus()}/>
    <MyComponent onRef={(r) => this.myField2 = r}/>
}

其他回答

如果你正在使用NativeBase作为UI组件,你可以使用这个示例

<Item floatingLabel>
    <Label>Title</Label>
    <Input
        returnKeyType = {"next"}
        autoFocus = {true}
        onSubmitEditing={(event) => {
            this._inputDesc._root.focus(); 
        }} />
</Item>
<Item floatingLabel>
    <Label>Description</Label>
    <Input
        getRef={(c) => this._inputDesc = c}
        multiline={true} style={{height: 100}} />
        onSubmitEditing={(event) => { this._inputLink._root.focus(); }} />
</Item>

下面是如何为reactjs的电话代码输入实现这一点

import React, { useState, useRef } from 'react';

function Header(props) {

  const [state , setState] = useState({
        phone_number:"",
        code_one:'',
        code_two:'',
        code_three:'',
        code_four:'',
        submitted:false,

  })

   const codeOneInput = useRef(null);
   const codeTwoInput = useRef(null);
   const codeThreeInput = useRef(null);
   const codeFourInput = useRef(null);

   const handleCodeChange = (e) => {
        const {id , value} = e.target
        if(value.length < 2){
            setState(prevState => ({
                ...prevState,
                [id] : value
            }))
            if(id=='code_one' && value.length >0){
                codeTwoInput.current.focus();
            }
            if(id=='code_two'  && value.length >0){
                codeThreeInput.current.focus();
            }
            if(id=='code_three'  && value.length >0){
                codeFourInput.current.focus();
            }
        }
    }

    const sendCodeToServer = () => {

         setState(prevState => ({
                ...prevState,
                submitted : true,
          }))
  let codeEnteredByUser = state.code_one + state.code_two + state.code_three + state.code_four

        axios.post(API_BASE_URL, {code:codeEnteredByUser})
        .then(function (response) {
            console.log(response)
        })

   }

   return(
        <>

           <div className="are">
                 <div className="POP-INN-INPUT">
                                        <input type="text" id="code_one" ref={codeOneInput}    value={state.code_one}  onChange={handleCodeChange} autoFocus/>
                                        <input type="text" id="code_two"  ref={codeTwoInput}  value={state.code_two} onChange={handleCodeChange}/>
                                        <input type="text" id="code_three"  ref={codeThreeInput} value={state.code_three}  onChange={handleCodeChange}/>
                                        <input type="text" id="code_four" ref={codeFourInput}  value={state.code_four}  onChange={handleCodeChange}/>
                                    </div>

            <button disabled={state.submitted} onClick={sendCodeToServer}>
   
    </div>

       </>
    )
}
export default

如果您恰好像我一样使用tcomb-form-native,您也可以这样做。这里有一个技巧:不是直接设置TextInput的道具,而是通过选项来实现。您可以将表单的字段引用为:

this.refs.form.getComponent('password').refs.input.focus()

所以最终的产品看起来是这样的:

var t = require('tcomb-form-native');
var Form = t.form.Form;

var MyForm = t.struct({
  field1:     t.String,
  field2:     t.String,
});

var MyComponent = React.createClass({

  _getFormOptions () {
    return {
      fields: {
        field1: {
          returnKeyType: 'next',
          onSubmitEditing: () => {this.refs.form.getComponent('field2').refs.input.focus()},
        },
      },
    };
  },

  render () {

    var formOptions = this._getFormOptions();

    return (
      <View style={styles.container}>
        <Form ref="form" type={MyForm} options={formOptions}/>
      </View>
    );
  },
});

(感谢remcoanker在这里发布的想法:https://github.com/gcanti/tcomb-form-native/issues/96)

在你的组件中:

constructor(props) {
        super(props);
        this.focusNextField = this
            .focusNextField
            .bind(this);
        // to store our input refs
        this.inputs = {};
    }
    focusNextField(id) {
        console.log("focus next input: " + id);
        this
            .inputs[id]
            ._root
            .focus();
    }

注意:我使用了._root,因为它是NativeBase' library ' Input中的TextInput的引用

在文本输入中,像这样

<TextInput
         onSubmitEditing={() => {
                          this.focusNextField('two');
                          }}
         returnKeyType="next"
         blurOnSubmit={false}/>


<TextInput      
         ref={input => {
              this.inputs['two'] = input;
                        }}/>

对于RN 0.50.3的我来说,这是可能的:

<TextInput 
  autoFocus={true} 
  onSubmitEditing={() => {this.PasswordInputRef._root.focus()}} 
/>

<TextInput ref={input => {this.PasswordInputRef = input}} />

你必须看到这个。