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Card.js
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Card.js
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import React from 'react';
import {
StyleSheet,
Text,
Image as RNImage,
Dimensions,
Animated,
PanResponder,
} from 'react-native';
const SCREEN_HEIGHT = Dimensions.get('window').height;
const SCREEN_WIDTH = Dimensions.get('window').width;
export default class App extends React.Component {
constructor(props) {
super(props);
this.position = this.props.position;
this.rotate = this.position.x.interpolate({
inputRange: [-SCREEN_WIDTH, 0, SCREEN_WIDTH],
outputRange: ['-10deg', '0deg', '10deg'],
extrapolate: 'clamp',
});
const defaultScale = this.props.isActive ? 0.9 : 0.85;
this.nextCardScale = this.props.parentPosition ? this.props.parentPosition.x.interpolate({
inputRange: [-SCREEN_WIDTH/2, 0, SCREEN_WIDTH/2],
outputRange: [0.9, 0.85, 0.9],
extrapolate: 'clamp',
}) : defaultScale;
this.rotateAndTranslate = {
transform: [
{ rotate: this.rotate },
{ scale: this.nextCardScale },
...this.position.getTranslateTransform()
]
};
this.likeOpacity = this.position.x.interpolate({
inputRange: [-SCREEN_WIDTH/2, 0, SCREEN_WIDTH/2],
outputRange: [1, 0, 0],
extrapolate: 'clamp',
});
this.nopeOpacity = this.position.x.interpolate({
inputRange: [-SCREEN_WIDTH/2, 0, SCREEN_WIDTH/2],
outputRange: [0, 0, 1],
extrapolate: 'clamp',
});
}
componentWillMount() {
this.PanResponder = PanResponder.create({
onStartShouldSetPanResponder:(evt, gestureState) => this.props.isActive,
onPanResponderMove:(evt, gestureState) => {
this.position.setValue({x: gestureState.dx, y: gestureState.dy});
},
onPanResponderRelease:(evt, gestureState) => {
if (gestureState.dx > 120) {
this.props.handleNopeSelect(gestureState.dy, this.position);
} else if (gestureState.dx < -120) {
this.props.handleLikeSelect(gestureState.dy, this.position);
} else {
Animated.spring(this.position, {
toValue: {x: 0, y: 0},
friction: 4
}).start();
}
}
})
}
render() {
return (
<Animated.View {...this.PanResponder.panHandlers} // <----- This is what binds to the PanResponder's onPanResponderMove handler
style={[
this.rotateAndTranslate,
styles.card,
]} >
<Animated.View
style={[
styles.cardTextContainer,
styles.cardTextContainerLike,
{ opacity: this.likeOpacity }
]}
>
<Text style={[styles.cardText, styles.cardTextLike]} >LIKE</Text>
</Animated.View>
<Animated.View
style={[
styles.cardTextContainer,
styles.cardTextContainerNope,
{ opacity: this.nopeOpacity }
]}
>
<Text style={[styles.cardText, styles.cardTextNope]} >NOPE</Text>
</Animated.View>
<RNImage style={styles.cardImg} source={this.props.image} />
</Animated.View>
);
}
}
const styles = StyleSheet.create({
cardImg: {
borderRadius: 20,
height: null,
width: null,
resizeMode: 'cover',
flex: 1,
},
card: {
position: 'absolute',
height: '105%',
width: SCREEN_WIDTH,
// shadowOffset:{ width: 0, height: 2, },
// shadowOpacity: .2,
// shadowRadius: 5,
},
cardTextContainer: {
position: 'absolute',
top: 45,
zIndex: 999,
},
cardText: {
borderWidth: 2,
fontSize: 30,
fontWeight: '800',
padding: 10,
borderRadius: 4,
},
cardTextContainerLike: {
right: 45,
transform: [
{rotate: '15deg'}
]
},
cardTextLike: {
color: '#4bdb79',
borderColor: '#4bdb79',
},
cardTextContainerNope: {
left: 45,
transform: [
{rotate: '-15deg'}
]
},
cardTextNope: {
color: '#D80027',
borderColor: '#D80027',
}
});