react-native/RNTester/js/AnimatedGratuitousApp/AnExSet.js

150 lines
4.0 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule AnExSet
* @flow
*/
'use strict';
var React = require('react');
var ReactNative = require('react-native');
var {
Animated,
PanResponder,
StyleSheet,
Text,
View,
} = ReactNative;
var AnExBobble = require('./AnExBobble');
var AnExChained = require('./AnExChained');
var AnExScroll = require('./AnExScroll');
var AnExTilt = require('./AnExTilt');
class AnExSet extends React.Component<Object, any> {
constructor(props: Object) {
super(props);
function randColor() {
var colors = [0,1,2].map(() => Math.floor(Math.random() * 150 + 100));
return 'rgb(' + colors.join(',') + ')';
}
this.state = {
closeColor: randColor(),
openColor: randColor(),
};
}
render(): React.Node {
var backgroundColor = this.props.openVal ?
this.props.openVal.interpolate({
inputRange: [0, 1],
outputRange: [
this.state.closeColor, // interpolates color strings
this.state.openColor
],
}) :
this.state.closeColor;
var panelWidth = this.props.containerLayout && this.props.containerLayout.width || 320;
return (
<View style={styles.container}>
<Animated.View
style={[styles.header, { backgroundColor }]}
{...this.state.dismissResponder.panHandlers}>
<Text style={[styles.text, styles.headerText]}>
{this.props.id}
</Text>
</Animated.View>
{this.props.isActive &&
<View style={styles.stream}>
<View style={styles.card}>
<Text style={styles.text}>
July 2nd
</Text>
<AnExTilt isActive={this.props.isActive} />
<AnExBobble />
</View>
<AnExScroll panelWidth={panelWidth}/>
<AnExChained />
</View>
}
</View>
);
}
UNSAFE_componentWillMount() {
this.state.dismissY = new Animated.Value(0);
this.state.dismissResponder = PanResponder.create({
onStartShouldSetPanResponder: () => this.props.isActive,
onPanResponderGrant: () => {
Animated.spring(this.props.openVal, { // Animated value passed in.
toValue: this.state.dismissY.interpolate({ // Track dismiss gesture
inputRange: [0, 300], // and interpolate pixel distance
outputRange: [1, 0], // to a fraction.
}),
useNativeDriver: true,
}).start();
},
onPanResponderMove: Animated.event(
[null, {dy: this.state.dismissY}], // track pan gesture
{useNativeDriver: true}
),
onPanResponderRelease: (e, gestureState) => {
if (gestureState.dy > 100) {
this.props.onDismiss(gestureState.vy); // delegates dismiss action to parent
} else {
Animated.spring(this.props.openVal, {
toValue: 1, // animate back open if released early
useNativeDriver: true,
}).start();
}
},
});
}
}
var styles = StyleSheet.create({
container: {
flex: 1,
},
header: {
alignItems: 'center',
paddingTop: 18,
height: 90,
},
stream: {
flex: 1,
backgroundColor: 'rgb(230, 230, 230)',
},
card: {
margin: 8,
padding: 8,
borderRadius: 6,
backgroundColor: 'white',
shadowRadius: 2,
shadowColor: 'black',
shadowOpacity: 0.2,
shadowOffset: {height: 0.5},
},
text: {
padding: 4,
paddingBottom: 10,
fontWeight: 'bold',
fontSize: 18,
backgroundColor: 'transparent',
},
headerText: {
fontSize: 25,
color: 'white',
shadowRadius: 3,
shadowColor: 'black',
shadowOpacity: 1,
shadowOffset: {height: 1},
},
});
module.exports = AnExSet;