1
votes

Comment obtenir des valeurs de TextInput

Je suis coincé dans une fonction apparemment simple. Comment puis-je obtenir une valeur (chaîne) à partir d'un TextInput?

Voici un extrait du code:

const Insert = props => {
  const [enteredName, setEnteredName] = useState();


const sendValues = (enteredName) => {

    console.log(enteredName);

  };

 <TextInput
          placeholder="Your Name"
          blurOnSubmit
          autoCorrect={false}
          maxLength={30}
          autoCapitalized="words"
          placeholderTextColor="#777"
          value={enteredName}
          onChangeText={text => setEnteredSurname(text)}

        />

        <View>
          <Button title="Submit" onPress={sendValues(enteredName)} />

J'obtiens la saisie lorsque je tape mais ce n'est pas le cas soumettre quoi que ce soit.

Une idée à ce sujet ??

Merci d'avance!

react-native textinput react-native-textinput

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3 Réponses :

0
votes

class AwesomeProject extends Component {

  constructor(props){
    super(props)

    this.state = {
      username: '',
      password: '',
    }
  }

  _handlePress() {
     console.log(this.state.username);
     console.log(this.state.password);
  }

  render() {
    return (
    <ScrollView style={styles.content}>
      <View style={styles.content}>

        <Text style={styles.welcome}>
          Create Account
        </Text>

        <Text style={styles.textStyle}>
          Name
        </Text>

        <TextInput
          style={styles.textInputStyle}
          placeholder="Enter Name"
          returnKeyLabel = {"next"}
          onChangeText={(text) => this.setState({username:text})}
        />

        <Text style={styles.textStyle}>
          Name
        </Text>

        <TextInput
          style={styles.textInputStyle}
          placeholder="Enter Name"
          returnKeyLabel = {"next"}
          onChangeText={(text) => this.setState({password:text})}
        />

        <Button 
          onPress={() => this._handlePress()}
          style={styles.buttonStyle}>
              Submit
        </Button>

        </View>
      </ScrollView>
    );
  }
}

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0
votes

Vous devez transformer votre onPress d'une expression en une fonction et initialiser votre état

const Insert = props => {
  const [enteredName, setEnteredName] = useState(''); //INIT TO EMPTY


function sendValues(enteredName) {
    console.log(enteredName);
};

 <TextInput
    placeholder="Your Name"
    blurOnSubmit
    autoCorrect={false}
    maxLength={30}
    autoCapitalized="words"
    placeholderTextColor="#777"
    value={enteredName}
    onChangeText={text => setEnteredSurname(text)} />

    <View>
      <Button title="Submit" onPress={() => sendValues(enteredName)} /> //Function not expression
    </View>

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0
votes

Essayez ceci, vous devez l'utiliser comme ceci:

import React, { useState } from 'react';
import {Text, View,TextInput,Button} from 'react-native';
export default  Example = () =>  {

   const [enteredName, setEnteredName] = useState(''); 
  sendValues = (enteredName) =>{
    console.log(enteredName);
};
  return (
    <View>
    <Text>Hey</Text>
    <TextInput
    placeholder="Your Name"
    blurOnSubmit
    autoCorrect={false}
    maxLength={30}
    autoCapitalized="words"
    placeholderTextColor="#777"
    value={enteredName}
    onChangeText={text => setEnteredSurname(text)} />

    <View>
      <Button title="Submit" onPress={() => sendValues(enteredName)} />
    </View>
    </View>
  );
}

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