react-native-animatable-promise v1.2.4

react-native-animatable

Easy to use declarative transitions and a standard set of animations for React Native

Original project: https://github.com/oblador/react-native-animatable

What's new?

Added promise for functions 'transitionTo' and 'transition'. Now you can use them like that:

this.refs.objectRef.transitionTo({ opacity: 0 }).then(() => alert('Hey! Transition ends!'));

or:

this.refs.objectRef.transition({ opacity: 1 }, { opacity: 0 }).then(() => alert('Hey! Transition ends!'));

Installation

$ npm install react-native-animatable-promise --save

Usage

To animate things you must use the createAnimatableComponent composer similar to the Animated.createAnimatedComponent. The common components View, Text and Image are precomposed and exposed under the Animatable namespace. If you have your own component that you wish to animate, simply wrap it with a Animatable.View or compose it with:

import * as Animatable from 'react-native-animatable';
MyCustomComponent = Animatable.createAnimatableComponent(MyCustomComponent);

Declarative Usage

Animations

<Animatable.Text animation="zoomInUp">Zoom me up, Scotty</Animatable.Text>

Looping

To make looping animations simply set the iterationCount to infinite. Most animations except the attention seekers work best when setting direction to alternate.

<Animatable.Text animation="slideInDown" iterationCount={5} direction="alternate">Up and down you go</Animatable.Text>
<Animatable.Text animation="pulse" easing="ease-out" iterationCount="infinite" style={{ textAlign: 'center' }}>❤️</Animatable.Text>

Generic transitions

You can create your own simple transitions of a style property of your own choosing. The following example will increase the font size by 5 for every tap – all animated, all declarative! If you don't supply a duration property, a spring animation will be used.

Note: If you are using colors, please use rgba() syntax.

Note: Transitions require StyleSheet.flatten available in React Native 0.15 or later. If you are running on anything lower, please polyfill as described under imperative usage.

<TouchableOpacity onPress={() => this.setState({fontSize: (this.state.fontSize || 10) + 5 })}>
  <Animatable.Text transition="fontSize" style={{fontSize: this.state.fontSize || 10}}>Size me up, Scotty</Animatable.Text>
</TouchableOpacity>

Properties

Note: Other properties will be passed down to underlying component.

Imperative Usage

Animations

All animations are exposed as functions on Animatable elements, they take an optional duration argument. They return a promise that is resolved when animation completes successfully or is cancelled.

import * as Animatable from 'react-native-animatable';

class ExampleView extends Component {
  render() {
    return (
      <TouchableWithoutFeedback onPress={() => this.refs.view.bounce(800).then((endState) => console.log(endState.finished ? 'bounce finished' : 'bounce cancelled');}>
        <Animatable.View ref="view">
          <Text>Bounce me!</Text>
        </Animatable.View>
      </TouchableWithoutFeedback>
    );
  }
}

To stop any ongoing animations, just invoke stopAnimation() on that element.

Generic transitions

transition(fromValues, toValues[[, duration], easing])

Will transition between given styles. If no duration or easing is passed a spring animation will be used.

transitionTo(toValues[[, duration], easing])

This function will try to determine the current styles and pass it along to transition() as fromValues.

import * as Animatable from 'react-native-animatable';

class ExampleView extends Component {
  render() {
    return (
      <TouchableWithoutFeedback onPress={() => this.refs.text.transitionTo({opacity: 0.2});}>
        <Animatable.Text ref="text">Fade me!</Animatable.Text>
      </TouchableWithoutFeedback>
    );
  }
}

Custom Animations

Animations can be referred to by a global name or a definition object.

Animation Definition Schema

An animation definition is a plain object that contains an optional easing property, an optional style property for static non-animated styles (useful for perspective, backfaceVisibility, zIndex etc) and a list of keyframes. The keyframes are refered to by a number between 0 to 1 or from and to. Inspect the source in the definitions folder to see more in depth examples.

A simple fade in animation:

const fadeIn = {
  from: {
    opacity: 0,
  },
  to: {
    opacity: 1,
  },
};

Combining multiple styles to create a zoom out animation:

const zoomOut = {
  0: {
    opacity: 1,
    scale: 1,
  },
  0.5: {
    opacity: 1,
    scale: 0.3,
  },
  1: {
    opacity: 0,
    scale: 0,
  },
};

To make your animations globally available by referring to them by a name, you can register them with initializeRegistryWithDefinitions. This function can also be used to replace built in animations in case you want to tweak some value.

Animatable.initializeRegistryWithDefinitions({
  myFancyAnimation: {
    from: { ... },
    to: { ... },
  }
});

Demo / Example

See Example folder.

Animations

Animations are heavily inspired by Animated.css.

Attention Seekers

• bounce
• flash
• jello
• pulse
• rotate
• rubberBand
• shake
• swing
• tada
• wobble

Bouncing Entrances

• bounceIn
• bounceInDown
• bounceInUp
• bounceInLeft
• bounceInRight

Bouncing Exits

• bounceOut
• bounceOutDown
• bounceOutUp
• bounceOutLeft
• bounceOutRight

Fading Entrances

• fadeIn
• fadeInDown
• fadeInDownBig
• fadeInUp
• fadeInUpBig
• fadeInLeft
• fadeInLeftBig
• fadeInRight
• fadeInRightBig

Fading Exits

• fadeOut
• fadeOutDown
• fadeOutDownBig
• fadeOutUp
• fadeOutUpBig
• fadeOutLeft
• fadeOutLeftBig
• fadeOutRight
• fadeOutRightBig

Flippers

• flipInX
• flipInY
• flipOutX
• flipOutY

Lightspeed

• lightSpeedIn
• lightSpeedOut

Sliding Entrances

• slideInDown
• slideInUp
• slideInLeft
• slideInRight

Sliding Exits

• slideOutDown
• slideOutUp
• slideOutLeft
• slideOutRight

Zooming Entrances

• zoomIn
• zoomInDown
• zoomInUp
• zoomInLeft
• zoomInRight

Zooming Exits

• zoomOut
• zoomOutDown
• zoomOutUp
• zoomOutLeft
• zoomOutRight

Changelog

License

MIT License. © Joel Arvidsson 2015