React Native Blinking Animation

React Native Blinking Animation

This is an example of React Native Blinking Animation. Example contains :

  • Making a CustomBlinkingTxt with blinking animation.
  • Use CustomBlinkingTxt in our App Class.
  • Pass the text using props.

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 for Blinking Animation

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

App.js

// React Native Blinking Animation
// https://aboutreact.com/react-native-blinking-animation/

// import React in our code
import React, {useState, useEffect} from 'react';

// import all the components we are going to use
import {SafeAreaView, StyleSheet, Text, View} from 'react-native';

const App = () => {
  const [showText, setShowText] = useState(true);

  useEffect(() => {
    // Change the state every second or the time given by User.
    const interval = setInterval(() => {
      setShowText((showText) => !showText);
    }, 1000);
    return () => clearInterval(interval);
  }, []);

  return (
    <SafeAreaView style={{flex: 1}}>
      <View style={styles.container}>
        <Text style={styles.titleText}>
          React Native Blinking Animation
        </Text>
        <Text
          style={[
            styles.textStyle,
            {display: showText ? 'none' : 'flex'}
          ]}>
          Lorem Ipsum is simply dummy text of the printing..
        </Text>
      </View>
    </SafeAreaView>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 20,
  },
  titleText: {
    fontSize: 22,
    textAlign: 'center',
    fontWeight: 'bold',
  },
  textStyle: {
    textAlign: 'center',
    marginTop: 10,
  },
});

export default App;

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 (macOS only)

react-native run-ios

Download Source Code

Output Screenshots

IOS

     

Android

     

Output in Online Emulator

That was the React Native blinking Animation. If you have any doubts 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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