README.md

React Native Crossfade Image

React Native component for changing images with crossfade transition effect when a new source prop received. Works as a replacement for React Native's Image or ImageBackground components, both local files and remote URLs supported.

Installation

yarn

yarn add react-native-crossfade-image

npm

npm install react-native-crossfade-image

Use as an image

Simply replace Image with CrossfadeImage in your component. Please note that you have to specify image dimensions using the style prop to avoid collapsing.

import React from 'react';
import { View, StyleSheet } from 'react-native';
import { CrossfadeImage } from 'react-native-crossfade-image';

const MyComponent = ({ imageSource }) => (
  <View style={styles.wrapper}>
    <CrossfadeImage style={styles.image} source={imageSource} resizeMode="cover" />
  </View>
);

const styles = StyleSheet.create({
  wrapper: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  image: {
    width: 100,
    height: 100,
  },
});

export default MyComponent;

Use as a background image

You can provide children like you would with ImageBackground component. The content will be shown on top of the image. Adding blurRadius will create a nice blurred background effect.

import React from 'react';
import { StyleSheet, Text } from 'react-native';
import { CrossfadeImage } from 'react-native-crossfade-image';

const MyComponent = ({ imageSource }) => (
  <CrossfadeImage style={styles.background} source={imageSource} resizeMode="cover" blurRadius={50}>
    <Text style={styles.text}>Text over blurred background</Text>
  </CrossfadeImage>
);

const styles = StyleSheet.create({
  background: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  text: {
    color: '#fff',
    fontSize: 20,
    fontWeight: 'bold',
  },
});

export default MyComponent;

Props

Prop	Type	Default	Description
source	ImageSourcePropType		The image source (either a remote URL or a local file resource).
duration	number	500	Duration of the fade transition in ms.
easing	EasingFunction	Easing.ease	Easing function, see available options.
style	ViewStyle		Style object applied to the wrapping View.
resizeMode	ImageResizeMode	cover	Image resize mode, see available options.
reverseFade	boolean	false	Fade the images simultaneously so the old image fades out while the new image fades in. Use true for transparent images.
blurRadius	number		The blur radius of the blur filter applied to the image.
children	ReactNode		Any children provided will be shown on top of the image similar to ImageBackground component.

Example app demo

demo.mp4

Feedback

I appreciate your feedback, so please star the repository if you like it. This is the best motivation for me to maintain the package and add new features. If you have any feature requests, found a bug, or have ideas for improvement, feel free to open an issue.

Also, please check out my other React Native components that might be a good fit for your project:

• React Native Avatar - Display user avatars like a pro.
• React Native Rating - An interactive rating component.
• React Native Page Indicator - Show the current page of a swiper, slideshow, carousel, etc.
• React Native Parallax Swiper - Build a horizontal scroll swiper with a parallax effect.

License

Licensed under the MIT license.