This is an Example of React Native Enable Disable TextInput Programmatically. In this Example, we will make a TextInput Enable/Disable on a click of a button. This type of task can be used while making any form which has interdependent fields like F1 needs to be filed before F2, so in that case, you can disable F2 until the user fill the field F1. We will use editable prop of the TextInput to make it Enable or Disable. So Let’s get started.
To Make a React Native App
Getting started with React Native will help you to know more about the way you can make a React Native project. We are going to use react-native init to make our React Native App.
Assuming that you have node installed, you can use npm to install the react-native-cli command line utility.
Open the terminal and go to the workspace and run
Run the following commands to create a new React Native projectnpm install -g react-native-cli
This will make a project structure with an index file named App.js in your project directory.react-native init ProjectName
Open App.js in any code editor and replace the code with the following code.
App.js
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | /*This is an example of React Native Enable Disable TextInput Programmatically*/ import React, { Component } from 'react'; import { View, TextInput, StyleSheet, Button } from 'react-native'; export default class App extends React.Component { constructor() { super(); this.state = { isEditable: false, buttonLabel: 'Enable TextInput', }; } _clickhandler(){ //Handler to enable of disable TextInput this.setState({ isEditable: !this.state.isEditable }); //Make TextInput Enable/Disable this.setState({ buttonLabel: this.state.isEditable ? 'Enable TextInput':'Disable TextInput' //updating the label of the button }); } render() { return ( <View style={styles.MainContainer}> <TextInput placeholder="Enter Password" underlineColorAndroid="transparent" style={[ styles.TextInput, { borderColor: this.state.isEditable ? 'red' : 'blue', //updating the border color on enable/disable }, ]} //editable is used to make TextInput enable/disable editable={this.state.isEditable} /> <Button title={this.state.buttonLabel} onPress={this._clickhandler.bind(this)}/> </View> ); } } const styles = StyleSheet.create({ MainContainer: { flex: 1, margin: 10, marginTop:30, padding:30, }, TextInput: { textAlign: 'center', height: 40, borderWidth: 1, marginTop: 10, marginButtom: 10, }, }); |
To Run the React Native App
Open the terminal again and jump into your project using.cd ProjectNamereact-native run-androidreact-native run-ios (macOS only).IOS
Android
This is how you can enable or disable a TextInput. If you have any doubt or you want to share something about the topic you can comment below or contact us here. There will be more posts coming soon. Stay tuned!
Hope you liked it. 🙂
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