@bam.tech/lottie-react-native
v2.5.10
Published
React Native bindings for Lottie (fork to fix xCode 10 waiting for upstream to release merged PR)
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Lottie for React Native, iOS, and Android
Lottie component for React Native (iOS and Android)
Lottie is a mobile library for Android and iOS that parses Adobe After Effects animations exported as JSON with bodymovin and renders them natively on mobile!
For the first time, designers can create and ship beautiful animations without an engineer painstakingly recreating it by hand.
Getting Started
Get started with Lottie by installing the node module with yarn or npm:
yarn add lottie-react-native
or
npm i --save lottie-react-native
iOS
Use react-native link
to add the library to your project:
react-native link lottie-ios
react-native link lottie-react-native
After this, open the Xcode project configuration and add the Lottie.framework
as Embedded Binaries
.
Android
For android, you can react-native link
as well:
react-native link lottie-react-native
Usage
LottieView can be used in a declarative way:
import React from 'react';
import LottieView from 'lottie-react-native';
export default class BasicExample extends React.Component {
render() {
return (
<LottieView
source={require('./animation.json')}
autoPlay
loop
/>
);
}
}
Additionally, there is an imperative API which is sometimes simpler.
import React from 'react';
import LottieView from 'lottie-react-native';
export default class BasicExample extends React.Component {
componentDidMount() {
this.animation.play();
// Or set a specific startFrame and endFrame with:
this.animation.play(30, 120);
}
render() {
return (
<LottieView
ref={animation => {
this.animation = animation;
}}
source={require('../path/to/animation.json')}
/>
);
}
}
Lottie's animation progress can be controlled with an Animated
value:
import React from 'react';
import { Animated, Easing } from 'react-native';
import LottieView from 'lottie-react-native';
export default class BasicExample extends React.Component {
constructor(props) {
super(props);
this.state = {
progress: new Animated.Value(0),
};
}
componentDidMount() {
Animated.timing(this.state.progress, {
toValue: 1,
duration: 5000,
easing: Easing.linear,
}).start();
}
render() {
return (
<LottieView source={require('../path/to/animation.json')} progress={this.state.progress} />
);
}
}
API
You can find The full list of props and methods available in our API document. These are the most commont ones:
| Prop | Description | Default |
|---|---|---|
|source
| Mandatory - The source of animation. This must be a JS object of an animation, obtained (for example) with something like require('../path/to/animation.json')
. This is needed in order to fix things. | None |
|style
| Style attributes for the view, as expected in a standard View
. | The aspectRatio
exported by Bodymovin will be set. Also the width
if you haven't provided a width
or height
|
|loop
| A boolean flag indicating whether or not the animation should loop. | false
|
|autoPlay
| A boolean flag indicating whether or not the animation should start automatically when mounted. This only affects the imperative API. | false
|
More
View more documentation, FAQ, help, examples, and more at airbnb.io/lottie