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React Native Animated.sequence()
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import React, { Component } from 'react'; | |
import { | |
AppRegistry, | |
StyleSheet, | |
Text, | |
View, | |
Animated | |
} from 'react-native' | |
const arr = [] | |
for (var i = 0; i < 500; i++) { | |
arr.push(i) | |
} | |
class animations extends Component { | |
constructor () { | |
super() | |
this.animatedValue = [] | |
arr.forEach((value) => { | |
this.animatedValue[value] = new Animated.Value(0) | |
}) | |
} | |
componentDidMount () { | |
this.animate() | |
} | |
animate () { | |
const animations = arr.map((item) => { | |
return Animated.timing( | |
this.animatedValue[item], | |
{ | |
toValue: 1, | |
duration: 50 | |
} | |
) | |
}) | |
Animated.sequence(animations).start() | |
} | |
render () { | |
const animations = arr.map((a, i) => { | |
return <Animated.View key={i} style={{opacity: this.animatedValue[a], height: 20, width: 20, backgroundColor: 'red', marginLeft: 3, marginTop: 3}} /> | |
}) | |
return ( | |
<View style={styles.container}> | |
{animations} | |
</View> | |
) | |
} | |
} | |
const styles = StyleSheet.create({ | |
container: { | |
flex: 1, | |
flexDirection: 'row', | |
flexWrap: 'wrap' | |
} | |
}) | |
AppRegistry.registerComponent('animations', () => animations); |
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