How To Show App Intro Slider in React Native

About The Tutorial –

In this tutorial, we are going to learn “How To Show App Intro Slider in React Native“.

What is app intro functionality –

We use the app intro slider to show the basic information about the app the first time when you start the app.

So it’s basically used for introducing your app. here you showcase your attractive feature.

To create an app Intro Slider we are going to use the react-native-app-intro-slider library. here you find a AppIntroSlider component that is very easy to integrate.

So these are the 3 – types of app intro slider that meet your requirement implement that one in your app.

So let’s start to implement these.

Step 1 – Installation

First, we need to install the third-party npm plugin.

npm install react-native-app-intro-slider            
                or
yarn add react-native-app-intro-slider

Step 2 – Import

After installing the npm plugin successfully, now we need to import that plugin into your file.

import AppIntroSlider from 'react-native-app-intro-slider';

Step 3 – Set up the data

Now we are going to create a formate for data, which we show in this app intro, you can customize it based on your requirements.

const slides = [
  {
    key: 1,
    title: 'Title 1',
    text: 'Description.\nSay something cool',
    image: require('./assets/1.jpg'),
    backgroundColor: '#59b2ab',
  },
  {
    key: 2,
    title: 'Title 2',
    text: 'Other cool stuff',
    image: require('./assets/2.jpg'),
    backgroundColor: '#febe29',
  },
  {
    key: 3,
    title: 'Rocket guy',
    text: 'I\'m already out of descriptions\n\nLorem ipsum bla bla bla',
    image: require('./assets/3.jpg'),
    backgroundColor: '#22bcb5',
  }
];

Step 4 – Setup States

Here you need to define a variable based on that variable condition you show the slider.

this.state = {
    showRealApp: false
  }

Step 5 – Design the view

Now we set up the view for showing the app slider.

render() {
    if (this.state.showRealApp) {
      return <App />;
    } else {
      return <AppIntroSlider renderItem={this._renderItem}   data={slides} onDone={this._onDone}/>;
    }
  }

Step 6 – Complete code

Here we see the complete code of all three types of intro sliders.

Types of Intro Slider –

This third-party library provides you 3 types of sliders.

1. Simple Intro Slider – Basic

import React from 'react';
import { StyleSheet } from 'react-native';
import AppIntroSlider from 'react-native-app-intro-slider';
 
const slides = [
  {
    key: 1,
    title: 'Title 1',
    text: 'Description.\nSay something cool',
    image: require('./assets/1.jpg'),
    backgroundColor: '#59b2ab',
  },
  {
    key: 2,
    title: 'Title 2',
    text: 'Other cool stuff',
    image: require('./assets/2.jpg'),
    backgroundColor: '#febe29',
  },
  {
    key: 3,
    title: 'Rocket guy',
    text: 'I\'m already out of descriptions\n\nLorem ipsum bla bla bla',
    image: require('./assets/3.jpg'),
    backgroundColor: '#22bcb5',
  }
];
export default class App extends React.Component {
  this.state = {
    showRealApp: false
  }
  _renderItem = ({ item }) => {
    return (
      <View style={styles.slide}>
        <Text style={styles.title}>{item.title}</Text>
        <Image source={item.image} />
        <Text style={styles.text}>{item.text}</Text>
      </View>
    );
  }
  _onDone = () => {
    // User finished the introduction. Show real app through
    // navigation or simply by controlling state
    this.setState({ showRealApp: true });
  }
  render() {
    if (this.state.showRealApp) {
      return <App />;
    } else {
      return <AppIntroSlider renderItem={this._renderItem} data={slides} onDone={this._onDone}/>;
    }
  }
}

2. Configuring buttons – showSkipButton

Here is one twist, you need to show the icon so we need to install the third party for the icon.

npm i react-native-vector-icons
import React from 'react';
import Icon from 'react-native-vector-icons/Ionicons';
import { StyleSheet, View } from 'react-native';
import AppIntroSlider from 'react-native-app-intro-slider';
 
const styles = StyleSheet.create({
  buttonCircle: {
    width: 40,
    height: 40,
    backgroundColor: 'rgba(0, 0, 0, .2)',
    borderRadius: 20,
    justifyContent: 'center',
    alignItems: 'center',
  },
  //[...]
});
 
// slides = [...]
 
export default class App extends React.Component {
  _renderItem = ({ item }) => {
    return (
      <View style={styles.slide}>
        <Text style={styles.title}>{item.title}</Text>
        <Image source={item.image} />
        <Text style={styles.text}>{item.text}</Text>
      </View>
    );
  }
  _renderNextButton = () => {
    return (
      <View style={styles.buttonCircle}>
        <Ion
          name="md-arrow-round-forward"
          color="rgba(255, 255, 255, .9)"
          size={24}
        />
      </View>
    );
  };
  _renderDoneButton = () => {
    return (
      <View style={styles.buttonCircle}>
        <Ion
          name="md-checkmark"
          color="rgba(255, 255, 255, .9)"
          size={24}
        />
      </View>
    );
  };
  render() {
    return (
      <AppIntroSlider
        data={slides}
        renderDoneButton={this._renderDoneButton}
        renderNextButton={this._renderNextButton}
      />
    );
  }
}

3. Custom Buttons – bottomButtonandshowSkipButton

Step 7 – Run the app

Now you can run your app and see your sliders.

react-native run-android

react-native run-ios

Step 8 – Props

NameTypeDefaultDescription
dataobjectNone, requiredAn array of objects (they should either contain a unique key-prop or you should pass a keyExtractor-function to the component)
renderItemfunctionNone, requiredFlatList’s renderItem. Receives ({item, index, dimensions}) where dimensions contains height and width of the slides
onSlideChangefunctionvoidCalled when user goes changes slide (by swiping or pressing next/prev). Function called with arguments (index: number, lastIndex: number)
renderPaginationfunctionFunction to render a custom pagination/button component on top of slides. Receives the index of the currently active slide
onDonefunctionvoidCalled when user ends the introduction by pressing the done button
onSkipfunctionScrolls to the endCalled when user presses the skip button
bottomButtonbooleanfalseEnable to show a full-width button under pagination
dotStylestyle{backgroundColor: ‘rgba(0, 0, 0, .2)’}Style of inactive pagination dots
dotClickEnabledbooleantrueWhether users can navigate using the pagination dots
activeDotStylestyle{backgroundColor: ‘rgba(255, 255, 255, .9)’}Style of active pagination dot
skipLabelstringSkipCustom label for Skip button
doneLabelstringDoneCustom label for Done button
nextLabelstringNextCustom label for Next button
prevLabelstringBackCustom label for Prev button
showSkipButtonbooleanfalseEnable to show a skip button to the left of pagination dots. When bottomButton == true the skip button is a small text under the full-width next button
showPrevButtonbooleanfalseEnable to show a previous button. If showSkipButton is true, the skip button will be displayed on the first page and prev button on subsequent one
showNextButtonbooleantrueDisable to hide the next button
showDoneButtonbooleantrueDisable to hide the done button
renderNextButtonfunctionrenders a Text-componentUse to supply your own next button. Has no effect if using renderPagination.
renderPrevButtonfunctionrenders a Text-componentUse to supply your own prev button . Has no effect if using renderPagination
renderDoneButtonfunctionrenders a Text-componentUse to supply your own done button. Has no effect if using renderPagination
renderSkipButtonfunctionrenders a Text-componentUse to supply your own skip button. Has no effect if using renderPagination

Step 9 – Methods

Method NameArgumentsDescription
goToSlidenumberChange to slide with specified index
getListRefnoneReturns the Flat List ref

So we completed the react-native drag and drop functionality which is “How To Show App Intro Slider in React Native

You can find my next post here.

You can find my post on medium as well click here please follow me on medium as well.

If have any query or issues, please feel free to ask.

For more info – https://www.npmjs.com/package/react-native-app-intro-slider

Happy Coding Guys.

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