React Native CountDown Timer using react-native-countdown-component

This is an Example of React Native CountDown Timer using react-native-countdown-component. A CountDown Timer is the reverse of the timer we usually see.  To make a CountDown Timer we will use CountDown component from react-native-countdown-component.

CountDown Timer can be used if you are making an App which has some time constraints like if you are making a quiz App, You need some sort of timer to show the remaining time. Let’s see the example below.

In our Example, we will make a CountDown Timer which will show the Count Down from the Expiry DateTime to the Current DateTime. If you want to make a simple quiz app using this you can directly pass the time for the CountDown Timer in seconds. We have used a library called moment which is very helpful if you are playing around the Date and Time.

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.

Installation of Dependencies

To install dependencies open the terminal and jump into your project

1. To use CountDown you need to install react-native-countdown-component dependency.

To install this run the following command

2. To use moment you need to install moment.

To install this run the following command

These commands will copy all the dependencies into your node_module directory. –save is optional, it is just to update the react-native-countdown-component and moment dependancies in your package.json file.

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

App.js

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).

Android

IOS

 

That was the React Native Count Down Timer. 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. 🙂

4 thoughts on “React Native CountDown Timer using react-native-countdown-component”

    • Hey hi Tarik, Thank you for the appreciation. CountDown used in this example is an imported component form the react-native-countdown-component library. Do you want to add : in between or want to show the time?

    • You can use setInterval for that. You can set the interval parallel to the countdown timer and can clear the interval using onFinish={() => alert(‘finished’)} as countdown is finished.

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