import React from 'react' import { View, ART } from 'react-native' const {Surface} = ART; import Wedge from './Wedge' export default class Fan extends React.Component{ render(){ return( <View style={this.props.style}> <Surface width={100} height={100}> <Wedge outerRadius={50} startAngle={0} endAngle={60} originX={50} originY={50} fill="blue"/> </Surface> </View> ) } }
综合示例
相关代码：
/** * Sample React Native App * https://github.com/facebook/react-native * @flow */ import React, { Component }from 'react'; import { ART as Art, StyleSheet, View, Dimensions, TouchableWithoutFeedback, Animated } from 'react-native'; var HEART_SVG = "M130.4-0.8c25.4 0 46 20.6 46 46.1 0 13.1-5.5 24.9-14.2 33.3L88 153.6 12.5 77.3c-7.9-8.3-12.8-19.6-12.8-31.9 0-25.5 20.6-46.1 46-46.2 19.1 0 35.5 11.7 42.4 28.4C94.9 11 111.3-0.8 130.4-0.8" var HEART_COLOR = 'rgb(226,38,77,1)'; var GRAY_HEART_COLOR = "rgb(204,204,204,1)"; var FILL_COLORS = [ 'rgba(221,70,136,1)', 'rgba(212,106,191,1)', 'rgba(204,142,245,1)', 'rgba(204,142,245,1)', 'rgba(204,142,245,1)', 'rgba(0,0,0,0)' ]; var PARTICLE_COLORS = [ 'rgb(158, 202, 250)', 'rgb(161, 235, 206)', 'rgb(208, 148, 246)', 'rgb(244, 141, 166)', 'rgb(234, 171, 104)', 'rgb(170, 163, 186)' ] getXYParticle = (total, i, radius) => { var angle = ( (2 * Math.PI) / total ) * i; var x = Math.round((radius * 2) * Math.cos(angle - (Math.PI / 2))); var y = Math.round((radius * 2) * Math.sin(angle - (Math.PI / 2))); return { x: x, y: y, } } getRandomInt = (min, max) => { return Math.floor(Math.random() * (max - min)) + min; } shuffleArray = (array) => { for (var i = array.length - 1; i > 0; i--) { var j = Math.floor(Math.random() * (i + 1)); var temp = array[i]; array[i] = array[j]; array[j] = temp; } return array; } var { Surface, Group, Shape, Path } = Art; //使用Animated.createAnimatedComponent对其他组件创建对话 //创建一个灰色的新型图片 var AnimatedShape = Animated.createAnimatedComponent(Shape); var { width: deviceWidth, height: deviceHeight } = Dimensions.get('window'); export default class ArtAnimView extends Component { constructor(props) { super(props); this.state = { animation: new Animated.Value(0) }; } explode = () => { Animated.timing(this.state.animation, { duration: 1500, toValue: 28 }).start(() => { this.state.animation.setValue(0); this.forceUpdate(); }); } getSmallExplosions = (radius, offset) => { return [0, 1, 2, 3, 4, 5, 6].map((v, i, t) => { var scaleOut = this.state.animation.interpolate({ inputRange: [0, 5.99, 6, 13.99, 14, 21], outputRange: [0, 0, 1, 1, 1, 0], extrapolate: 'clamp' }); var moveUp = this.state.animation.interpolate({ inputRange: [0, 5.99, 14], outputRange: [0, 0, -15], extrapolate: 'clamp' }); var moveDown = this.state.animation.interpolate({ inputRange: [0, 5.99, 14], outputRange: [0, 0, 15], extrapolate: 'clamp' }); var color_top_particle = this.state.animation.interpolate({ inputRange: [6, 8, 10, 12, 17, 21], outputRange: shuffleArray(PARTICLE_COLORS) }) var color_bottom_particle = this.state.animation.interpolate({ inputRange: [6, 8, 10, 12, 17, 21], outputRange: shuffleArray(PARTICLE_COLORS) }) var position = getXYParticle(7, i, radius) return ( <Group x={position.x + offset.x } y={position.y + offset.y} rotation={getRandomInt(0, 40) * i} > <AnimatedCircle x={moveUp} y={moveUp} radius={15} scale={scaleOut} fill={color_top_particle} /> <AnimatedCircle x={moveDown} y={moveDown} radius={8} scale={scaleOut} fill={color_bottom_particle} /> </Group> ) }, this) } render() { var heart_scale = this.state.animation.interpolate({ inputRange: [0, .01, 6, 10, 12, 18, 28], outputRange: [1, 0, .1, 1, 1.2, 1, 1], extrapolate: 'clamp' }); var heart_fill = this.state.animation.interpolate({ inputRange: [0, 2], outputRange: [GRAY_HEART_COLOR, HEART_COLOR], extrapolate: 'clamp' }) var heart_x = heart_scale.interpolate({ inputRange: [0, 1], outputRange: [90, 0], }) var heart_y = heart_scale.interpolate({ inputRange: [0, 1], outputRange: [75, 0], }) var circle_scale = this.state.animation.interpolate({ inputRange: [0, 1, 4], outputRange: [0, .3, 1], extrapolate: 'clamp' }); var circle_stroke_width = this.state.animation.interpolate({ inputRange: [0, 5.99, 6, 7, 10], outputRange: [0, 0, 15, 8, 0], extrapolate: 'clamp' }); var circle_fill_colors = this.state.animation.interpolate({ inputRange: [1, 2, 3, 4, 4.99, 5], outputRange: FILL_COLORS, extrapolate: 'clamp' }) var circle_opacity = this.state.animation.interpolate({ inputRange: [1, 9.99, 10], outputRange: [1, 1, 0], extrapolate: 'clamp' }) return ( <View style={styles.container}> <TouchableWithoutFeedback onPress={this.explode} style={styles.container}> <View style={{transform: [{scale: .8}]}}> <Surface width={deviceWidth} height={deviceHeight}> <Group x={75} y={200}> <AnimatedShape d={HEART_SVG} x={heart_x} y={heart_y} scale={heart_scale} fill={heart_fill} /> <AnimatedCircle x={89} y={75} radius={150} scale={circle_scale} strokeWidth={circle_stroke_width} stroke={FILL_COLORS[2]} fill={circle_fill_colors} opacity={circle_opacity} /> {this.getSmallExplosions(75, {x: 89, y: 75})} </Group> </Surface> </View> </TouchableWithoutFeedback> </View> ); } }; class AnimatedCircle extends Component { render() { var radius = this.props.radius; var path = Path().moveTo(0, -radius) .arc(0, radius * 2, radius) .arc(0, radius * -2, radius) .close(); return React.createElement(AnimatedShape); } } var styles = StyleSheet.create({ container: { flex: 1, } });