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AnimatedComponent.js
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AnimatedComponent.js
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import React from "react";
import {Animated, Easing} from "react-native";
class AnimatedComponent extends React.PureComponent {
constructor(props){
super(props);
this.opacityAnimate = new Animated.Value(0);
this.slideDown= {
transform: [
{
translateY: this.opacityAnimate.interpolate({
inputRange: [0,1],
outputRange: [0, 30]
})
}
],
opacity:this.opacityAnimate,
};
this.slideUp= {
transform: [
{
translateY: this.opacityAnimate.interpolate({
inputRange: [0,1],
outputRange: [30, 0]
})
}
],
opacity:this.opacityAnimate,
};
this.show=this.show.bind(this);
this.toggle=this.toggle.bind(this);
}
show(){
this.animateStagger.apply(this,arguments)
}
toggle(){
this.animateToggle.apply(this,arguments)
}
animateStagger(delay=2000) {
Animated.stagger(delay,
[
Animated.timing(
this.opacityAnimate,
{
toValue: 1,
duration: 300,
easing: Easing.linear,
}
),
Animated.timing(
this.opacityAnimate,
{
toValue: 0,
duration: 300,
easing: Easing.linear,
}
),
]
).start()
}
animateToggle(delay=2000){
if(this.opacityAnimate._value===0){
this.animateStagger(delay);
}else {
Animated.timing(
this.opacityAnimate,
{
toValue: 0,
duration: 300,
easing: Easing.linear,
}
).start()
}
}
}
export default AnimatedComponent;