react-native-app-intro-slider

react-native-app-intro-slider

Easy-to-use yet very configurable app introduction slider/swiper based on FlatList

npm i react-native-app-intro-slider --save

Table of contents

• Usage
  • Basic Example
  • Configuring Buttons
  • Custom Slide Layout
• Props and options
  • Configure behaviour
  • Configure looks
• Example

Usage

Basic example

No configuration	showSkipButton	bottomButton and showSkipButton

The component is based on FlatList so usage is very similar. Pass a data-array to AppIntroSlider along with a renderItem-function (or you can use the default basic layout).

import React from 'react';
import { StyleSheet } from 'react-native';
import AppIntroSlider from 'react-native-app-intro-slider';

const slides = [
  {
    key: 'somethun',
    title: 'Title 1',
    text: 'Description.\nSay something cool',
    image: require('./assets/1.jpg'),
    backgroundColor: '#59b2ab',
  },
  {
    key: 'somethun-dos',
    title: 'Title 2',
    text: 'Other cool stuff',
    image: require('./assets/2.jpg'),
    backgroundColor: '#febe29',
  },
  {
    key: 'somethun1',
    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={style.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} slides={slides} onDone={this._onDone}/>;
    }
  }
}

Configuring buttons

import React from 'react';
import { Ionicons } from '@expo/vector-icons';
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',
  },
  image: {
    width: 320,
    height: 320,
  },
});

// slides = [...]

export default class App extends React.Component {
  _renderNextButton = () => {
    return (
      <View style={styles.buttonCircle}>
        <Ionicons
          name="md-arrow-round-forward"
          color="rgba(255, 255, 255, .9)"
          size={24}
          style={{ backgroundColor: 'transparent' }}
        />
      </View>
    );
  };
  _renderDoneButton = () => {
    return (
      <View style={styles.buttonCircle}>
        <Ionicons
          name="md-checkmark"
          color="rgba(255, 255, 255, .9)"
          size={24}
          style={{ backgroundColor: 'transparent' }}
        />
      </View>
    );
  };
  render() {
    return (
      <AppIntroSlider
        slides={slides}
        renderDoneButton={this._renderDoneButton}
        renderNextButton={this._renderNextButton}
      />
    );
  }
}

Custom slide layout

import React from 'react';
import { Ionicons } from '@expo/vector-icons';
import { StyleSheet, View, Text, Image } from 'react-native';
import { LinearGradient } from 'expo';
import AppIntroSlider from 'react-native-app-intro-slider';

const styles = StyleSheet.create({
  mainContent: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'space-around',
  },
  image: {
    width: 320,
    height: 320,
  },
  text: {
    color: 'rgba(255, 255, 255, 0.8)',
    backgroundColor: 'transparent',
    textAlign: 'center',
    paddingHorizontal: 16,
  },
  title: {
    fontSize: 22,
    color: 'white',
    backgroundColor: 'transparent',
    textAlign: 'center',
    marginBottom: 16,
  },
});

const slides = [
  {
    key: 'somethun',
    title: 'Quick setup, good defaults',
    text:
      'React-native-app-intro-slider is easy to setup with a small footprint and no dependencies. And it comes with good default layouts!',
    icon: 'ios-images-outline',
    colors: ['#63E2FF', '#B066FE'],
  },
  {
    key: 'somethun1',
    title: 'Super customizable',
    text:
      'The component is also super customizable, so you can adapt it to cover your needs and wants.',
    icon: 'ios-options-outline',
    colors: ['#A3A1FF', '#3A3897'],
  },
  {
    key: 'somethun2',
    title: 'No need to buy me beer',
    text: 'Usage is all free',
    icon: 'ios-beer-outline',
    colors: ['#29ABE2', '#4F00BC'],
  },
];

export default class App extends React.Component {
  _renderItem = props => (
    <LinearGradient
      style={[
        styles.mainContent,
        {
          width: props.width,
          height: props.height,
        },
      ]}
      colors={props.colors}
      start={{ x: 0, y: 0.1 }}
      end={{ x: 0.1, y: 1 }}
    >
      <Ionicons
        style={{ backgroundColor: 'transparent' }}
        name={props.icon}
        size={200}
        color="white"
      />
      <View>
        <Text style={styles.title}>{props.title}</Text>
        <Text style={styles.text}>{props.text}</Text>
      </View>
    </LinearGradient>
  );

  render() {
    return <AppIntroSlider slides={slides} renderItem={this._renderItem} bottomButton />;
  }
}

Here a custom renderItem is supplied and the bottomButton-props has been set to true. Notice how the setup of slides has been configured to support icons and gradient backgrounds.

Props and options

The component extends FlatList so all FlatList-props are valid.

Configure looks

Name	Type	Default	Description
skipLabel	string	Skip	Custom label for Skip button
doneLabel	string	Done	Custom label for Done button
nextLabel	string	Next	Custom label for Next button
prevLabel	string	Back	Custom label for Prev button
bottomButton	boolean	false	Enable to show a full-width button under pagination
buttonStyle	style	null	Styling of outer button component
buttonTextStyle	style	null	Styling of button text component
dotStyle	style	{backgroundColor: 'rgba(0, 0, 0, .2)'}	Style of inactive pagination dots
activeDotStyle	style	{backgroundColor: 'rgba(255, 255, 255, .9)'}	Style of active pagination dot
paginationStyle	style	null	Styling of the pagination dots
hidePagination	boolean	false	Enable to hide the pagination
renderNextButton	function	renders a Text-component	Use to supply your own next button
renderPrevButton	function	renders a Text-component	Use to supply your own prev button
renderDoneButton	function	renders a Text-component	Use to supply your own done button
renderSkipButton	function	renders a Text-component	Use to supply your own skip button
renderItem	function	renders DefaultSlide	(FlatList's renderItem)[https://facebook.github.io/react-native/docs/flatlist.html#renderitem]. Receives {item, index, dimensions} where dimensions contains height and width of the slides.

Configure behavior

Name	Type	Default	Description
slides	object	No default, required	An array of objects (they should either contain a unique key-prop or you should pass a keyExtractor-function to the component)
showSkipButton	boolean	false	Enable 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
showPrevButton	boolean	false	Enable 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
showNextButton	boolean	true	Disable to hide the next button
showDoneButton	boolean	true	Disable to hide the done button
onSlideChange	function	void	Called when user goes changes slide (by swiping or pressing next/prev). Function called with arguments index: number, lastIndex: number
onDone	function	void	Called when user ends the introduction by pressing the done button
onSkip	function	Scroll the list to the end	Called when user presses the skip button

Slide object

If you want to use the default slide layout, your slides can contain the following information:

Name	Type	Note
title	string	The title
titleStyle	Style-prop	Styling for the title (e.g color, fontSize)
text	string	Main text of slide
textStyle	Style-prop	Styling for the text (e.g color, fontSize)
image	Image-source prop	Slide image
imageStyle	Style-prop	Styling for the image (e.g. size)
backgroundColor	string	Slide background color

Methods

Method Name	Arguments	Description
goToSlide	number	Change to slide with specified index
getListRef	none	Returns the Flat List ref

Example

You can run the example Expo-app by cloning the repo:

git clone https://github.com/Jacse/react-native-app-intro-slider.git
cd react-native-app-intro-slider/Example
yarn
yarn start