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React-Native 学习Animated -2

React-Native 学习Animated -2

作者: 煎包小混沌 | 来源:发表于2017-07-06 10:28 被阅读0次
    //研究Animated的顺序执行,延时执行,同时执行的效果动画
    import React, {Component} from 'react';
    import {
        AppRegistry,
        StyleSheet,
        Animated,
        View,
        Text,
        TouchableHighlight
    } from 'react-native';
    
    class RnAnimatedView extends Component {
        constructor(poros){
            super(poros);
            this.state = {
                //创建动画的数组,并map遍历赋值
                anim: [1,2,3].map(() => new Animated.Value(0)),
            }
        }
    
        animation1 = () => {
            let timing = Animated.timing;
            //stagger 延时执行数组中的动画
            let stagger = Animated.stagger;
            //parallel 同时执行数组中的动画
            let parallel = Animated.parallel;
            //sequence 顺序执行数组中的动画
            Animated.sequence([
            //依次延时200毫秒,执行数组中的动画
                stagger(200, this.state.anim.map(left => {
                    return timing(left, {
                        toValue: 1,
                        duration: 2000,
                    })
                })),
                // Animated.delay(400),
                parallel(this.state.anim.map(left => {
                    return timing(left, {
                        toValue: 0,
                        duration: 2000,
                    })
                })),
            ]).start();
        };
    
        render() {
            let views = this.state.anim.map(function (value, i) {
                console.log('sssss', value,i);
                return(
                    <Animated.View key={i} style={[test4Style.test4AnimationView, i === 0 ? {transform: [
                        {rotateX: value.interpolate({
                            inputRange: [0, 1],
                            outputRange: ['0deg', '360deg'],
                        })}
                    ]} : i === 1 ? {transform: [
                        {rotateY: value.interpolate({
                            inputRange: [0, 1],
                            outputRange: ['0deg', '360deg'],
                        })}
                    ]} : {transform: [
                        {rotateZ: value.interpolate({
                            inputRange: [0, 1],
                            outputRange: ['0deg', '360deg'],
                        })}
                    ]},
                    ]}>
                        <Text>我是第{i}个View</Text>
                    </Animated.View>
                )
            });
    
            return(
                <View style={test4Style.test4View}>
                    <TouchableHighlight onPress={this.animation1}>
                        <Text> 点我执行 动画 </Text>
                    </TouchableHighlight>
                    {views}
                </View>
            )
        }
    }
    
    const test4Style = StyleSheet.create({
        test4View: {
            flex: 1,
            backgroundColor: '#f1d433',
            alignItems: 'center',
            justifyContent: 'center',
        },
        test4AnimationView: {
            backgroundColor: '#f35d22',
            marginTop: 20,
        }
    });
    
    AppRegistry.registerComponent('RnAnimatedView', () => RnAnimatedView);
    
    Untitled2.gif

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