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Fix unique key issue when number has multiple of the same digit. #10

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Fix unique key issue when number has multiple of the same digit. #10

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256 changes: 136 additions & 120 deletions NumberTicker.js
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Original file line number Diff line number Diff line change
@@ -1,140 +1,156 @@
import React, {Component} from "react";
import {Animated, Easing, StyleSheet, Text, View} from "react-native";
import React, { Component } from "react";
import { Animated, Easing, StyleSheet, Text, View } from "react-native";
import PropTypes from "prop-types";

const NumberTicker = ({style, textSize = 35, textStyle, number, duration}) => {

const mapToDigits = () => {
return (number + '').split('').map((data) => {
if (data === '.' || data === ',') {
return (
<Text key={data} style={[textStyle, {fontSize: textSize}]}>{data}</Text>
);
}
return (
<TextTicker
key={data}
textSize={textSize}
textStyle={textStyle}
targetNumber={parseFloat(data, 10)}
duration={duration}
/>
);
})
};

return (
<View style={style}>
<View style={{flexDirection: 'row'}}>
{mapToDigits()}
</View>
</View>
);
const NumberTicker = ({
style,
textSize = 35,
textStyle,
number,
duration,
}) => {
const mapToDigits = () => {
return (number + "").split("").map((data, index) => {
if (data === "." || data === ",") {
return (
<Text
key={`${data}${index}`}
style={[textStyle, { fontSize: textSize }]}
>
{data}
</Text>
);
}
return (
<TextTicker
key={`${data}${index}`}
textSize={textSize}
textStyle={textStyle}
targetNumber={parseFloat(data, 10)}
duration={duration}
/>
);
});
};

return (
<View style={style}>
<View style={{ flexDirection: "row" }}>{mapToDigits()}</View>
</View>
);
};

class TextTicker extends Component {

constructor(props) {
super(props);
this.state = {
animatedValue: new Animated.Value(0),
isAnimating: true,
delay: 800,
number: 1
};
const {targetNumber} = this.props;

if (this.props.targetNumber > 5) {
for (let i = 0; i <= targetNumber; i++) {
this.numberList.push({id: i});
}
} else {
for (let i = 9; i >= targetNumber; i--) {
this.numberList.push({id: i});
}
}
}

componentDidMount() {
this.startAnimation();
}

numberList = [];

startAnimation = () => {
const {animatedValue} = this.state;
Animated.timing(animatedValue, {
toValue: 1,
duration: this.props.duration,
easing: Easing.out(Easing.cubic),
useNativeDriver: true,
}).start(() => {
// on finish..
});
};

getInterpolatedVal = (val) => {
return val.interpolate({
inputRange: [0, 1],
outputRange: [this.props.textSize * this.numberList.length, this.props.textSize*0.2],
extrapolate: 'clamp',
});
constructor(props) {
super(props);
this.state = {
animatedValue: new Animated.Value(0),
isAnimating: true,
delay: 800,
number: 1,
};


renderNumbers = (styles) => {
return this.numberList.map((data) => {
return (
<Text key={data.id} style={[this.props.textStyle, styles.text]}>{data.id}</Text>
)
});
};

render() {
const {animatedValue} = this.state;
const styles = generateStyles(this.props.textSize);

return (
<View style={styles.container}>
<Animated.View style={{
transform: [{
translateY: this.getInterpolatedVal(animatedValue)
}]
}}>
{this.renderNumbers(styles)}
</Animated.View>
</View>
);
const { targetNumber } = this.props;

if (this.props.targetNumber > 5) {
for (let i = 0; i <= targetNumber; i++) {
this.numberList.push({ id: i });
}
} else {
for (let i = 9; i >= targetNumber; i--) {
this.numberList.push({ id: i });
}
}
}

componentDidMount() {
this.startAnimation();
}

numberList = [];

startAnimation = () => {
const { animatedValue } = this.state;
Animated.timing(animatedValue, {
toValue: 1,
duration: this.props.duration,
easing: Easing.out(Easing.cubic),
useNativeDriver: true,
}).start(() => {
// on finish..
});
};

getInterpolatedVal = (val) => {
return val.interpolate({
inputRange: [0, 1],
outputRange: [
this.props.textSize * this.numberList.length,
this.props.textSize * 0.2,
],
extrapolate: "clamp",
});
};

renderNumbers = (styles) => {
return this.numberList.map((data) => {
return (
<Text key={data.id} style={[this.props.textStyle, styles.text]}>
{data.id}
</Text>
);
});
};

render() {
const { animatedValue } = this.state;
const styles = generateStyles(this.props.textSize);

return (
<View style={styles.container}>
<Animated.View
style={{
transform: [
{
translateY: this.getInterpolatedVal(animatedValue),
},
],
}}
>
{this.renderNumbers(styles)}
</Animated.View>
</View>
);
}
}

TextTicker.defaultProps = {
duration: 1800,
targetNumber: 7,
movingDown: true,
textSize: 35,
duration: 1800,
targetNumber: 7,
movingDown: true,
textSize: 35,
};

TextTicker.propTypes = {
duration: PropTypes.number,
targetNumber: PropTypes.number,
movingDown: PropTypes.bool,
textSize: PropTypes.number,
textStyle: PropTypes.any,
duration: PropTypes.number,
targetNumber: PropTypes.number,
movingDown: PropTypes.bool,
textSize: PropTypes.number,
textStyle: PropTypes.any,
};

const generateStyles = (textSize) => StyleSheet.create({
const generateStyles = (textSize) =>
StyleSheet.create({
container: {
width: textSize * 0.62,
height: textSize,
overflow: 'hidden',
alignItems: 'center',
justifyContent: 'flex-end',
width: textSize * 0.62,
height: textSize,
overflow: "hidden",
alignItems: "center",
justifyContent: "flex-end",
},
text: {
fontSize: textSize,
lineHeight: textSize,
fontSize: textSize,
lineHeight: textSize,
},
});
});

export default NumberTicker;
export default NumberTicker;