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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| /** | ||
| * The examples provided by Facebook are for non-commercial testing and | ||
| * evaluation purposes only. | ||
| * | ||
| * Facebook reserves all rights not expressly granted. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | ||
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL | ||
| * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN | ||
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | ||
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| * | ||
| * @flow | ||
| */ | ||
| 'use strict'; | ||
|
|
||
| var React = require('react-native'); | ||
| var { | ||
| Animated, | ||
| Easing, | ||
| StyleSheet, | ||
| Text, | ||
| View, | ||
| } = React; | ||
| var UIExplorerButton = require('./UIExplorerButton'); | ||
|
|
||
| exports.framework = 'React'; | ||
| exports.title = 'Animated - Examples'; | ||
| exports.description = 'Animated provides a powerful ' + | ||
| 'and easy-to-use API for building modern, ' + | ||
| 'interactive user experiences.'; | ||
|
|
||
| exports.examples = [ | ||
| { | ||
| title: 'FadeInView', | ||
| description: 'Uses a simple timing animation to ' + | ||
| 'bring opacity from 0 to 1 when the component ' + | ||
| 'mounts.', | ||
| render: function() { | ||
| class FadeInView extends React.Component { | ||
| constructor(props) { | ||
| super(props); | ||
| this.state = { | ||
| fadeAnim: new Animated.Value(0), // opacity 0 | ||
| }; | ||
| } | ||
| componentDidMount() { | ||
| Animated.timing( // Uses easing functions | ||
| this.state.fadeAnim, // The value to drive | ||
| { | ||
| toValue: 1, // Target | ||
| duration: 2000, // Configuration | ||
| }, | ||
| ).start(); // Don't forget start! | ||
| } | ||
| render() { | ||
| return ( | ||
| <Animated.View // Special animatable View | ||
| style={{ | ||
| opacity: this.state.fadeAnim, // Binds | ||
| }}> | ||
| {this.props.children} | ||
| </Animated.View> | ||
| ); | ||
| } | ||
| } | ||
| class FadeInExample extends React.Component { | ||
| constructor(props) { | ||
| super(props); | ||
| this.state = { | ||
| show: true, | ||
| }; | ||
| } | ||
| render() { | ||
| return ( | ||
| <View> | ||
| <UIExplorerButton onPress={() => { | ||
| this.setState((state) => ( | ||
| {show: !state.show} | ||
| )); | ||
| }}> | ||
| Press to {this.state.show ? | ||
| 'Hide' : 'Show'} | ||
| </UIExplorerButton> | ||
| {this.state.show && <FadeInView> | ||
| <View style={styles.content}> | ||
| <Text>FadeInView</Text> | ||
| </View> | ||
| </FadeInView>} | ||
| </View> | ||
| ); | ||
| } | ||
| } | ||
| return <FadeInExample />; | ||
| }, | ||
| }, | ||
| { | ||
| title: 'Transform Bounce', | ||
| description: 'One `Animated.Value` is driven by a ' + | ||
| 'spring with custom constants and mapped to an ' + | ||
| 'ordered set of transforms. Each transform has ' + | ||
| 'an interpolation to convert the value into the ' + | ||
| 'right range and units.', | ||
| render: function() { | ||
| this.anim = this.anim || new Animated.Value(0); | ||
| return ( | ||
| <View> | ||
| <UIExplorerButton onPress={() => { | ||
| Animated.spring(this.anim, { | ||
| toValue: 0, // Returns to the start | ||
| velocity: 3, // Velocity makes it move | ||
| tension: -10, // Slow | ||
| friction: 1, // Oscillate a lot | ||
| }).start(); }}> | ||
| Press to Fling it! | ||
| </UIExplorerButton> | ||
| <Animated.View | ||
| style={[styles.content, { | ||
| transform: [ // Array order matters | ||
| {scale: this.anim.interpolate({ | ||
| inputRange: [0, 1], | ||
| outputRange: [1, 4], | ||
| })}, | ||
| {translateX: this.anim.interpolate({ | ||
| inputRange: [0, 1], | ||
| outputRange: [0, 500], | ||
| })}, | ||
| {rotate: this.anim.interpolate({ | ||
| inputRange: [0, 1], | ||
| outputRange: [ | ||
| '0deg', '360deg' // 'deg' or 'rad' | ||
| ], | ||
| })}, | ||
| ]} | ||
| ]}> | ||
| <Text>Transforms!</Text> | ||
| </Animated.View> | ||
| </View> | ||
| ); | ||
| }, | ||
| }, | ||
| { | ||
| title: 'Composite Animations with Easing', | ||
| description: 'Sequence, parallel, delay, and ' + | ||
| 'stagger with different easing functions.', | ||
| render: function() { | ||
| this.anims = this.anims || [1,2,3].map( | ||
| () => new Animated.Value(0) | ||
| ); | ||
| return ( | ||
| <View> | ||
| <UIExplorerButton onPress={() => { | ||
| var timing = Animated.timing; | ||
| Animated.sequence([ // One after the other | ||
| timing(this.anims[0], { | ||
| toValue: 200, | ||
| easing: Easing.linear, | ||
| }), | ||
| Animated.delay(400), // Use with sequence | ||
| timing(this.anims[0], { | ||
| toValue: 0, | ||
| easing: Easing.elastic(2), // Springy | ||
| }), | ||
| Animated.delay(400), | ||
| Animated.stagger(200, | ||
| this.anims.map((anim) => timing( | ||
| anim, {toValue: 200} | ||
| )).concat( | ||
| this.anims.map((anim) => timing( | ||
| anim, {toValue: 0} | ||
| ))), | ||
| ), | ||
| Animated.delay(400), | ||
| Animated.parallel([ | ||
| Easing.inOut(Easing.quad), // Symmetric | ||
| Easing.back(1.5), // Goes backwards first | ||
| Easing.ease // Default bezier | ||
| ].map((easing, ii) => ( | ||
| timing(this.anims[ii], { | ||
| toValue: 320, easing, duration: 3000, | ||
| }) | ||
| ))), | ||
| Animated.delay(400), | ||
| Animated.stagger(200, | ||
| this.anims.map((anim) => timing(anim, { | ||
| toValue: 0, | ||
| easing: Easing.bounce, // Like a ball | ||
| duration: 2000, | ||
| })), | ||
| ), | ||
| ]).start(); }}> | ||
| Press to Animate | ||
| </UIExplorerButton> | ||
| {['Composite', 'Easing', 'Animations!'].map( | ||
| (text, ii) => ( | ||
| <Animated.View | ||
| style={[styles.content, { | ||
| left: this.anims[ii] | ||
| }]}> | ||
| <Text>{text}</Text> | ||
| </Animated.View> | ||
| ) | ||
| )} | ||
| </View> | ||
| ); | ||
| }, | ||
| }, | ||
| { | ||
| title: 'Continuous Interactions', | ||
| description: 'Gesture events, chaining, 2D ' + | ||
| 'values, interrupting and transitioning ' + | ||
| 'animations, etc.', | ||
| render: () => ( | ||
| <Text>Checkout the Gratuitous Animation App!</Text> | ||
| ), | ||
| } | ||
| ]; | ||
|
|
||
| var styles = StyleSheet.create({ | ||
| content: { | ||
| backgroundColor: 'deepskyblue', | ||
| borderWidth: 1, | ||
| borderColor: 'dodgerblue', | ||
| padding: 20, | ||
| margin: 20, | ||
| borderRadius: 10, | ||
| alignItems: 'center', | ||
| }, | ||
| }); |
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