Created
November 10, 2022 10:18
-
-
Save kelleyvanevert/4c3b4d3f9218e22792b4c6891c80276f to your computer and use it in GitHub Desktop.
React Native Reanimated
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import React from "react"; | |
import { View, StyleSheet, Dimensions } from "react-native"; | |
import { darken } from "polished"; | |
import Animated, { | |
useAnimatedStyle, | |
Extrapolate, | |
useSharedValue, | |
useAnimatedProps, | |
interpolate, | |
useAnimatedGestureHandler, | |
withSpring, | |
cancelAnimation, | |
runOnJS, | |
} from "react-native-reanimated"; | |
import { PanGestureHandler } from "react-native-gesture-handler"; | |
import AnimateableText from "react-native-animateable-text"; | |
import { useRefCallback } from "@mywheels/common/util"; | |
import { magic, theme } from "../../../ui"; | |
type Props = { | |
initialValue: number; | |
onChange: (value: number) => void; | |
}; | |
const range = [0, 99]; | |
const size = 34; | |
export const MinScoreSlider = React.memo( | |
({ initialValue, onChange }: Props) => { | |
const isInitialized = useSharedValue(0); | |
const containerWidth = useSharedValue(Dimensions.get("window").width - 48); | |
const x = useSharedValue(0); | |
const _onChange = useRefCallback(onChange); | |
const cursorAnimStyle = useAnimatedStyle(() => { | |
return { | |
transform: [ | |
{ | |
translateX: x.value, | |
}, | |
], | |
}; | |
}, [x]); | |
const onPan = useAnimatedGestureHandler( | |
{ | |
onStart() { | |
cancelAnimation(x); | |
}, | |
onActive(e) { | |
x.value = Math.min( | |
containerWidth.value - size, | |
Math.max(0, e.x - size / 2) | |
); | |
}, | |
onEnd(e) { | |
const endX = Math.min( | |
containerWidth.value - size, | |
Math.max(0, e.x - size / 2) | |
); | |
const newValue = Math.round( | |
interpolate( | |
endX, | |
[0, containerWidth.value - size], | |
range, | |
Extrapolate.CLAMP | |
) | |
); | |
x.value = withSpring( | |
interpolate(newValue, range, [0, containerWidth.value - size]), | |
magic | |
); | |
runOnJS(_onChange)(newValue); | |
}, | |
}, | |
[x] | |
); | |
const cursorLabelProps = useAnimatedProps(() => { | |
return { | |
text: | |
"≥ " + | |
Math.round( | |
interpolate( | |
x.value, | |
[0, containerWidth.value - size], | |
range, | |
Extrapolate.CLAMP | |
) | |
), | |
}; | |
}, [x, containerWidth]); | |
return ( | |
<PanGestureHandler maxPointers={1} minDist={0} onGestureEvent={onPan}> | |
<Animated.View | |
style={styles.container} | |
onLayout={(e) => { | |
const contWidth = e.nativeEvent.layout.width; | |
containerWidth.value = contWidth; | |
x.value = interpolate(initialValue, range, [ | |
0, | |
containerWidth.value - size, | |
]); | |
isInitialized.value = 1; | |
}} | |
> | |
<View style={styles.line} /> | |
<Animated.View style={[styles.cursor, cursorAnimStyle]}> | |
<AnimateableText | |
style={styles.value} | |
animatedProps={cursorLabelProps} | |
/> | |
<View style={styles.cursorBorder} /> | |
</Animated.View> | |
</Animated.View> | |
</PanGestureHandler> | |
); | |
} | |
); | |
const styles = StyleSheet.create({ | |
container: { | |
position: "relative", | |
height: size, | |
justifyContent: "center", | |
}, | |
line: { | |
marginHorizontal: 8, | |
height: 8, | |
borderWidth: 1, | |
borderColor: theme.colors.gray200, | |
borderRadius: 2, | |
backgroundColor: theme.colors.gray100, | |
}, | |
cursor: { | |
height: size, | |
width: size, | |
position: "absolute", | |
top: 0, | |
left: 0, | |
backgroundColor: theme.colors.yellow, | |
borderRadius: 3, | |
justifyContent: "center", | |
alignItems: "center", | |
}, | |
cursorBorder: { | |
...StyleSheet.absoluteFillObject, | |
borderWidth: 2, | |
borderColor: darken(0.05, theme.colors.yellow), | |
borderRadius: 3, | |
}, | |
value: { | |
color: "white", | |
fontWeight: "bold", | |
fontSize: 12, | |
lineHeight: 14, | |
height: 14, | |
padding: 0, | |
textAlign: "center", | |
}, | |
}); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment