React Native Button

React Native Button

This post will show you How to Make a Button in React Native. React Native Button component to perform a click event. It is in one of the UI control components for handling touches. If you want to use a simple button to click and show result then Button is enough but if you want a stylish button then there are some limitations which make us suggest you use alternates like TouchableOpacity which are very easy to use and will provide you to style better.

Button has the prop “color” to change the color but other than that you can not style it as Button does not support “style” prop.

You can’t set text the like <Button>txt</Button> but only via the title property <Button title="txt" />

To Import Button in the Code

import { Button} from 'react-native'

Render Using

<Button 
    onPress={handlerFunction} 
    title="Click Here"
    color="#0000ff"/>

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

npm install -g react-native-cli

Run the following commands to create a new React Native project

react-native init ProjectName

If you want to start a new project with a specific React Native version, you can use the --version argument:

react-native init ProjectName --version X.XX.X
react-native init ProjectName --version react-native@next

This will make a project structure with an index file named App.js in your project directory.

Code

Open App.js in any code editor and replace the code with the following code.

App.js

//This is an example code to understand Button// 
import React from 'react';
//import react in our code. 
import { Button, View, StyleSheet, Text } from 'react-native';
//import all the components we are going to use. 
export default class App extends React.Component {
  onPressLearnMore(){
    //For generating alert on buttton click
    alert('Hello');
  }
  render() {
    return (
      // enclose all components in this View tag
      <View style={styles.container}>
        {/* View is used here to wrap all component in one */}
        <Text>Button Example</Text> 
        {/* Button whith handler function named onPressLearnMore*/}
        <Button
         onPress={this.onPressLearnMore}
         title="Click Me"
         color="#841584"
        />
      </View>
    );  
  } 
}
const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
});

To Run the React Native App

Open the terminal again and jump into your project using.
cd ProjectName
To run the project on an Android Virtual Device or on real debugging device
react-native run-android
or on the iOS Simulator by running
react-native run-ios (macOS only).

Output Screenshot

      

Output in Online Emulator

That was the React Native Button. If you have any doubts or you want to share something about the topic you can comment below or contact us here. The remaining components will be covered in the next article. Stay tuned!

Have a happy codding. 🙂


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