Contents
React Native Slider
This is an Example to Show the Working of Slider in React Native. React Native Slider is a component to select a single value from a range of values. We have mostly seen slider while increasing or decreasing the volume or brightness of our phone. Here is the example of the slider which will be helpful for you to integrate slider in your app.
To Import Slider in Code
import Slider from '@react-native-community/slider'
Render Using
<Slider
maximumValue={100}
minimumValue={0}
step={1}
value='initial value'
/>
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 Dependency
To use Slider
we need to install @react-native-community/slider
dependency. To install this open the terminal and jump into your project using
cd ProjectName
Run the following command to install
npm install @react-native-community/slider --save
This command will copy all the dependency into your node_module directory. –save is optional, it is just to update the @react-native-community/slider dependency in your package.json file.
CocoaPods Installation
We need to install the pods for iOS
cd ios && pod install && cd ..
Code
Open App.js in any code editor and replace the code with the following code
App.js
//React Native Slider
//https://aboutreact.com/react-native-slider/
//import React in our code
import React, {useState} from 'react';
//import all the components we are going to use
import {View, Text, SafeAreaView, StyleSheet} from 'react-native';
import Slider from '@react-native-community/slider';
const App = () => {
const [sliderValue, setSliderValue] = useState(15);
return (
<SafeAreaView style={{flex: 1}}>
<View style={styles.container}>
{/*Text to show slider value*/}
<Text style={{color: 'black'}}>
Value of slider is : {sliderValue}
</Text>
{/*Slider with max, min, step and initial value*/}
<Slider
maximumValue={100}
minimumValue={0}
minimumTrackTintColor="#307ecc"
maximumTrackTintColor="#000000"
step={1}
value={sliderValue}
onValueChange={
(sliderValue) => setSliderValue(sliderValue)
}
/>
</View>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
padding: 20,
justifyContent: 'center',
backgroundColor: '#ecf0f1',
},
});
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
Output Screenshot
Output in Online Emulator
That was the example to show the working of Slider in React Native. 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!
Hope you liked it. 🙂
I follow your code, and I have eror in emulator like this:
Invariant Violation: requireNativeComponent.
‘RNCSlider’ was not found in the UIManager
what the solution please..
Use
npx pod-install
orcd ios && pod install && cd ..
in root of your project.I can see only a dot in my project
Slider needs a proper styling. Please use a parent view over slider and provide
flex: 1
to the parent.If you have applied any centre align property to the parent please remove it.
when we are using step={1} i have an error,
TypeError: newValue.toFixed is not a function
(anonymous function)
D:/ReactLearning/React Native/native/node_modules/@react-native-community/slider/dist/RNCSliderNativeComponent.web.js:1
Can you please share your code to debug?