Created
November 10, 2022 10:18
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React Native Reanimated
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| 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", | |
| }, | |
| }); |
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