CODEWITHSUNDEEP
reactjsreact-native
Vipin Dubey
Vipin Dubey

Reputation: 592

Focus to next text input or submit not working in custom text input

First of all here is my custom component.

 return (
      <View style={[styles.container, this.props.style]}>

        <TextField
          style={styles.inputText}
          autoCapitalize={this.props.autoCapitalize}
          ref={this.props.ref}
          autoCorrect={false}
          onFocus={() => this.setState({isFocus:true})}
          onBlur={() => this.setState({isFocus:false})}
          value={this.state.text}
          label={this.props.placeholder}
          secureTextEntry={this.props.secureTextEntry}
          blurOnSubmit={this.props.blurOnSubmit}
          keyboardType={this.props.keyboardType}
          returnKeyType={this.props.returnKeyType}
          textContentType={this.props.textContentType}
        //  onSubmitEditing={this.props.focus(this.props.textInput)}
          onSubmitEditing={this.props.onSubmit}
          placeholderTextColor='grey'
          onChangeText={this.props.onChangeText ? this.props.onChangeText : (text) => this.setState({ text })}
          editable={this.props.editable}
        />
      </View>
    );

Now on submit the email field i want to make focus to password field and on submit on password i want to submit the form .

Here is the code for that :


<MaterialTextInput
             placeholder="Email"
           //  ref={(input) => { this.emailInput = input; }}
             ref={ref => (this.emailInput = ref)}
             onSubmit = {() => this.passwordInput.focus()}
             onChangeText={(text) => this.handleEmailchange(text)}/>


          <MaterialTextInput
             placeholder="Password"
             ref={ref => this.passwordInput = ref}
             onSubmit = {() => this.submit()}
             onChangeText={(text) => this.handlePasswordchange(text)}/>

But this does not works . It gives error ,

this.passwordInput.focus is undefined

Please tell me what i am doing wrong here ?

Upvotes: 0

Views: 656

Answers (2)

TalESid
TalESid

Reputation: 2514

You cannot use ref directly in your custom component. Use React.forwardRef(). Also don't use this.props. but use props. as your component isn't class-based.

Because your component <MaterialTextInput> in this.passwordInput is actually a <View> not <TextField>. And View don't have any method named focus()!!!

Above isn't the case anymore.

1) Export your Component from its file e.g. MaterialTextInput.js

export default MaterialTextInput = React.forwardRef((props, ref) => (
  <View style={[styles.container, props.style]}>
    <TextField ref={ref}
    onSubmitEditing={props.onSubmit}
    ...
    />
  </View>
));

2) Then import you component:

import MaterialTextInput from 'MaterialTextInput';

3) And use your component as you did

...
<MaterialTextInput ref={ref => this.emailInput = ref}
onSubmit={() => this.passwordInput.focus()}
... />

<MaterialTextInput ref={ref => this.passwordInput = ref}
onSubmit={() => this.submit()}
... />

Upvotes: 0

Kishan Bharda
Kishan Bharda

Reputation: 5690

You cannot use ref directly in your custom component. You have to declare your custom component as below : 

const MaterialTextInput = React.forwardRef((props, ref) => {
  return (
    <View style={[styles.container, this.props.style]}>
      <TextField
        style={styles.inputText}
        autoCapitalize={this.props.autoCapitalize}
        ref={ref} // Change Here also
        autoCorrect={false}
        onFocus={() => this.setState({isFocus:true})}
        onBlur={() => this.setState({isFocus:false})}
        value={this.state.text}
        label={this.props.placeholder}
        secureTextEntry={this.props.secureTextEntry}
        blurOnSubmit={this.props.blurOnSubmit}
        keyboardType={this.props.keyboardType}
        returnKeyType={this.props.returnKeyType}
        textContentType={this.props.textContentType}
      //  onSubmitEditing={this.props.focus(this.props.textInput)}
        onSubmitEditing={this.props.onSubmit}
        placeholderTextColor='grey'
        onChangeText={this.props.onChangeText ? this.props.onChangeText : (text) => this.setState({ text })}
        editable={this.props.editable}
      />
    </View>
  )
})

Now, you can use ref in your component.

Upvotes: 2

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