/react-native-app-intro-slider

Simple and configurable app introduction slider for react native

Primary LanguageJavaScriptMIT LicenseMIT

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
Button example gif Custom layout example gif

Table of contents

Usage

Basic example

No configuration showSkipButton bottomButton and showSkipButton
Basic example gif showSkipButton example image bottomButton example image

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

Button example gif

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

Custom layout example gif

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, {
        paddingTop: props.topSpacer,
        paddingBottom: props.bottomSpacer,
        width: props.width,
        height: props.height,
      }]}
      colors={props.colors}
      start={{x: 0, y: .1}} end={{x: .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 Function returning a slide. The function is passed the slide object as wells as { topSpacer: Number, bottomSpacer: Number }. These show the "safe-space" where other UI is not interfering - take a look at DefaultSlide.js too see how they are set up.

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

Methods

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

Slide object

If you use the default layout your object can furthermore contain:

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

If you use a custom renderItem-method you can design your slide objects as you see fit.

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