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React Native Semi Circular Progress bar
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import React, { useEffect, useState } from 'react' | |
import { Animated, View, StyleSheet, ViewPropTypes } from 'react-native' | |
const CustomSemiCircleProgress = ({ | |
children, | |
animationSpeed = 2, | |
initialPercentage = 0, | |
percentage = 10, | |
minValue, | |
maxValue, | |
currentValue, | |
circleRadius = 75, | |
progressShadowColor = "#F0F0F0", | |
progressColor = "#ECA20F", | |
progressWidth = 20, | |
interiorCircleColor = "#FFFFFF", | |
exteriorCircleStyle = {}, | |
interiorCircleStyle = {} | |
}) => { | |
const [rotationAnimation, setRotationAnimation] = useState(new Animated.Value(initialPercentage)) | |
useEffect(() => { | |
animate() | |
}, []); | |
const animate = () => { | |
const toValue = getPercentage() | |
const speed = animationSpeed | |
Animated.spring(rotationAnimation, { | |
toValue, | |
speed, | |
useNativeDriver: true | |
}).start(); | |
} | |
const getPercentage = () => { | |
if (percentage) | |
return Math.max(Math.min(percentage, 100), 0) | |
if (currentValue && minValue && maxValue) { | |
const newPercent = (currentValue - minValue) / (maxValue - minValue) * 100 | |
return Math.max(Math.min(newPercent, 100), 0) | |
} | |
return 0 | |
} | |
const getStyles = () => { | |
const interiorCircleRadius = circleRadius - progressWidth | |
return StyleSheet.create({ | |
exteriorCircle: { | |
width: circleRadius * 2, | |
height: circleRadius, | |
borderRadius: circleRadius, | |
backgroundColor: progressShadowColor | |
}, | |
rotatingCircleWrap: { | |
width: circleRadius * 2, | |
height: circleRadius, | |
top: circleRadius | |
}, | |
rotatingCircle: { | |
width: circleRadius * 2, | |
height: circleRadius, | |
borderRadius: circleRadius, | |
backgroundColor: progressColor, | |
transform: [ | |
{ translateY: -circleRadius / 2 }, | |
{ | |
rotate: rotationAnimation.interpolate({ | |
inputRange: [0, 100], | |
outputRange: ['0deg', '180deg'] | |
}) | |
}, | |
{ translateY: circleRadius / 2 } | |
] | |
}, | |
interiorCircle: { | |
width: interiorCircleRadius * 2, | |
height: interiorCircleRadius, | |
borderRadius: interiorCircleRadius, | |
backgroundColor: interiorCircleColor, | |
top: progressWidth | |
} | |
}) | |
} | |
const styles = getStyles() | |
return ( | |
<View style={[defaultStyles.exteriorCircle, styles.exteriorCircle, exteriorCircleStyle]}> | |
<View style={[defaultStyles.rotatingCircleWrap, styles.rotatingCircleWrap]}> | |
<Animated.View style={[defaultStyles.rotatingCircle, styles.rotatingCircle]} /> | |
</View> | |
<View style={[defaultStyles.interiorCircle, styles.interiorCircle, interiorCircleStyle]}> | |
{children} | |
</View> | |
</View> | |
) | |
}; | |
export default CustomSemiCircleProgress; | |
const defaultStyles = StyleSheet.create({ | |
exteriorCircle: { | |
borderBottomLeftRadius: 0, | |
borderBottomRightRadius: 0, | |
alignItems: 'center', | |
overflow: 'hidden' | |
}, | |
rotatingCircleWrap: { | |
position: 'absolute', | |
left: 0 | |
}, | |
rotatingCircle: { | |
position: 'absolute', | |
top: 0, | |
left: 0, | |
borderTopLeftRadius: 0, | |
borderTopRightRadius: 0, | |
}, | |
interiorCircle: { | |
overflow: 'hidden', | |
justifyContent: 'flex-end', | |
alignItems: 'center', | |
borderBottomLeftRadius: 0, | |
borderBottomRightRadius: 0, | |
} | |
}) |
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Thanks for this! Helped me immensely :)