react-native-app-intro-slider

An easy-to-use yet very configurable app introduction slider/swiper based on FlatList that supports RTL.

npm add @keeex/react-native-app-intro-slider

Usage

Simple examples

Basic	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:

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

const slides = [
  {
    key: 'one',
    title: 'Title 1',
    text: 'Description.\nSay something cool',
    image: require('./assets/1.jpg'),
    backgroundColor: '#59b2ab',
  },
  {
    key: 'two',
    title: 'Title 2',
    text: 'Other cool stuff',
    image: require('./assets/2.jpg'),
    backgroundColor: '#febe29',
  },
  {
    key: 'three',
    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}/>;
    }
  }
}

Configuring buttons

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}>
        <Icon
          name="md-checkmark"
          color="rgba(255, 255, 255, .9)"
          size={24}
        />
      </View>
    );
  };
  render() {
    return (
      <AppIntroSlider
        data={slides}
        renderDoneButton={this._renderDoneButton}
        renderNextButton={this._renderNextButton}
      />
    );
  }
}

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 methods

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

Props

Name	Type	Default	Description
data	object	None, required	An array of objects (they should either contain a unique key-prop or you should pass a keyExtractor-function to the component)
renderItem	function	None, required	FlatList's renderItem. Receives ({item, index, dimensions}) where dimensions contains height and width of the slides
onSlideChange	function	void	Called when user goes changes slide (by swiping or pressing next/prev). Function called with arguments (index: number, lastIndex: number)
renderPagination	function		Function to render a custom pagination/button component on top of slides. Receives the index of the currently active slide
onDone	function	void	Called when user ends the introduction by pressing the done button
onSkip	function	Scrolls to the end	Called when user presses the skip button
bottomButton	boolean	false	Enable to show a full-width button under pagination
dotStyle	style	{backgroundColor: 'rgba(0, 0, 0, .2)'}	Style of inactive pagination dots
dotClickEnabled	boolean	true	Whether users can navigate using the pagination dots
activeDotStyle	style	{backgroundColor: 'rgba(255, 255, 255, .9)'}	Style of active pagination dot
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
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
renderNextButton	function	renders a component (with onPress as first arg)	Use to supply your own next button. Has no effect if using renderPagination.
renderPrevButton	function	renders a component (with onPress as first arg)	Use to supply your own prev button . Has no effect if using renderPagination
renderDoneButton	function	renders a component (with onPress as first arg)	Use to supply your own done button. Has no effect if using renderPagination
renderSkipButton	function	renders a component (with onPress as first arg)	Use to supply your own skip button. Has no effect if using renderPagination

Methods

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

Examples

• Basic
• Bottom buttons
• Custom buttons
• Custom pagination with log in / sign up buttons
• Full-size background Images
• RTL