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Update bigSlider.js from example #3

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95 changes: 44 additions & 51 deletions BigSlider.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,64 +3,58 @@
* @flow
*/


import React, { Component } from 'react'
import {
Animated,
PanResponder,
StyleSheet,
Text,
View,
} from 'react-native'

import React, { Component } from "react"
import { Animated, PanResponder, StyleSheet, Text, View } from "react-native"

export default class BigSlider extends Component {
static defaultProps = {
value: 40,
maximumValue: 100,
minimumValue: 0,
onSlidingStart: () => { },
onValueChange: () => { },
onSlidingComplete: () => { },
onSlidingStart: () => {},
onValueChange: () => {},
onSlidingComplete: () => {}
}


constructor (props: Object) {
constructor(props: Object) {
super()
this.state = {
anchorValue: props.value,
value: props.value,
width: 120, // provisional value
height: 360, // provisional value
height: 360 // provisional value
}


this.range = props.maximumValue - props.minimumValue
}

state: {
anchorValue: number,
value: number,
width: number,
height: number,
height: number
}

componentWillMount () {
componentWillMount() {
this.panResponder = PanResponder.create({
onStartShouldSetPanResponder: () => true,
onPanResponderGrant: () => {
this.props.onSlidingStart()
this.setState({ anchorValue: this.state.value })
},
onPanResponderMove: Animated.event([null, {}], { listener: this.handleSlide }),
onPanResponderRelease: () => { this.props.onSlidingComplete() },
onPanResponderMove: Animated.event([null, {}], {
listener: this.handleSlide
}),
onPanResponderRelease: () => {
this.props.onSlidingComplete()
}
})
}

onLayout = ({ nativeEvent }: Object) => {
this.setState({
width: nativeEvent.layout.width,
height: nativeEvent.layout.height,
height: nativeEvent.layout.height
})
}

Expand All @@ -75,80 +69,79 @@ export default class BigSlider extends Component {
nextValue = nextValue >= maximumValue ? maximumValue : nextValue
nextValue = nextValue <= minimumValue ? minimumValue : nextValue


this.props.onValueChange(nextValue)
this.setState({ value: nextValue })
}

panResponder: Object
range: number

render () {
render() {
const value = this.state.value
const unitValue = (value - this.props.minimumValue) / this.range


return (
<View
onLayout={this.onLayout}
style={[styles.container, this.props.style]}
{...this.panResponder.panHandlers}>
{...this.panResponder.panHandlers}
>
<View style={[styles.pendingTrack, { flex: 1 - unitValue }]} />
<View style={[styles.track, { flex: unitValue }, this.props.trackStyle]}>
<View
style={[styles.track, { flex: unitValue }, this.props.trackStyle]}
>
<View style={styles.thumb} />
{this.props.renderLabel
? this.props.renderLabel()
: <View style={styles.trackLabel}>
{this.props.renderLabel ? (
this.props.renderLabel()
) : (
<View style={styles.trackLabel}>
<Text style={styles.trackLabelText}>
{this.props.label || `${formatNumber(this.props.value)}%`}
</Text>
</View>
}
)}
</View>
</View>
)
}
}


const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: 'rgb(241, 242, 247)',
justifyContent: "center",
alignItems: "center",
backgroundColor: "rgb(241, 242, 247)",
borderRadius: 12,
overflow: 'hidden',
width: 120,
},
pendingTrack: {
overflow: "hidden",
width: 120
},
pendingTrack: {},
track: {
flex: 1,
backgroundColor: 'rgb(1, 160, 188)',
backgroundColor: "rgb(1, 160, 188)",
borderRadius: 12,
alignSelf: 'stretch',
alignSelf: "stretch"
},
trackLabel: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
justifyContent: "center",
alignItems: "center"
},
trackLabelText: {
color: 'white',
fontWeight: '600',
color: "white",
fontWeight: "600"
},
thumb: {
backgroundColor: 'rgba(0,0,0,.5)',
backgroundColor: "rgba(0,0,0,.5)",
borderRadius: 12,
height: 3,
width: 24,
marginTop: 6,
alignSelf: 'center',
},
alignSelf: "center"
}
})


function formatNumber (x) {
return x.toFixed(1).replace(/\.?0*$/, '')
function formatNumber(x) {
return x.toFixed(1).replace(/\.?0*$/, "")
}
112 changes: 62 additions & 50 deletions example/BigSlider.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,14 +3,8 @@
* @flow
*/

import React, { Component } from 'react';
import {
Animated,
PanResponder,
StyleSheet,
Text,
View,
} from 'react-native';
import React, { Component } from "react"
import { Animated, PanResponder, StyleSheet, Text, View } from "react-native"

export default class BigSlider extends Component {
static defaultProps = {
Expand All @@ -19,46 +13,58 @@ export default class BigSlider extends Component {
minimumValue: 0,
onSlidingStart: () => {},
onValueChange: () => {},
onSlidingComplete: () => {},
onSlidingComplete: () => {}
}

constructor(props) {
constructor(props: Object) {
super()
this.state = {
anchorValue: props.value,
value: props.value,
width: 120, // provisional value
height: 360 // provisional value
}

this.range = props.maximumValue - props.minimumValue
}

componentWillMount () {
state: {
anchorValue: number,
value: number,
width: number,
height: number
}

componentWillMount() {
this.panResponder = PanResponder.create({
onStartShouldSetPanResponder: (e, gestureState) => true,
onPanResponderGrant: (evt, gestureState) => {
onStartShouldSetPanResponder: () => true,
onPanResponderGrant: () => {
this.props.onSlidingStart()
this.setState({ anchorValue: this.state.value })
},
onPanResponderMove: Animated.event([null, {}], { listener: this.handleSlide }),
onPanResponderRelease: (evt, gestureState) => {
onPanResponderMove: Animated.event([null, {}], {
listener: this.handleSlide
}),
onPanResponderRelease: () => {
this.props.onSlidingComplete()
},
}
})
}

slideTo = (value) => {
this.setState({value})
}

onLayout = ({ nativeEvent }) => {
onLayout = ({ nativeEvent }: Object) => {
this.setState({
width: nativeEvent.layout.width,
height: nativeEvent.layout.height,
height: nativeEvent.layout.height
})
}

handleSlide = (evt, gestureState) => {
slideTo = (value: number) => {
this.setState({ value })
}

handleSlide = (evt: Object, gestureState: Object) => {
const { maximumValue, minimumValue } = this.props
let valueIncrement = (-gestureState.dy * this.range) / this.state.height
const valueIncrement = (-gestureState.dy * this.range) / this.state.height
let nextValue = this.state.anchorValue + valueIncrement
nextValue = nextValue >= maximumValue ? maximumValue : nextValue
nextValue = nextValue <= minimumValue ? minimumValue : nextValue
Expand All @@ -67,69 +73,75 @@ export default class BigSlider extends Component {
this.setState({ value: nextValue })
}

render () {
panResponder: Object
range: number

render() {
const value = this.state.value
const unitValue = (value - this.props.minimumValue) / this.range

return (
<View
onLayout={this.onLayout}
style={[styles.container, this.props.style]}
{...this.panResponder.panHandlers}>
{...this.panResponder.panHandlers}
>
<View style={[styles.pendingTrack, { flex: 1 - unitValue }]} />
<View style={[styles.track, { flex: unitValue }, this.props.trackStyle]}>
<View
style={[styles.track, { flex: unitValue }, this.props.trackStyle]}
>
<View style={styles.thumb} />
{this.props.renderLabel
? this.props.renderLabel()
: <View style={styles.trackLabel}>
{this.props.renderLabel ? (
this.props.renderLabel()
) : (
<View style={styles.trackLabel}>
<Text style={styles.trackLabelText}>
{this.props.label || `${formatNumber(this.props.value)}%`}
</Text>
</View>
}
)}
</View>
</View>
);
)
}
}

const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: 'rgb(241, 242, 247)',
justifyContent: "center",
alignItems: "center",
backgroundColor: "rgb(241, 242, 247)",
borderRadius: 12,
overflow: 'hidden',
width: 120,
},
pendingTrack: {
overflow: "hidden",
width: 120
},
pendingTrack: {},
track: {
flex: 1,
backgroundColor: 'rgb(1, 160, 188)',
backgroundColor: "rgb(1, 160, 188)",
borderRadius: 12,
alignSelf: 'stretch',
alignSelf: "stretch"
},
trackLabel: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
justifyContent: "center",
alignItems: "center"
},
trackLabelText: {
color: 'white',
fontWeight: '600',
color: "white",
fontWeight: "600"
},
thumb: {
backgroundColor: 'rgba(0,0,0,.5)',
backgroundColor: "rgba(0,0,0,.5)",
borderRadius: 12,
height: 3,
width: 24,
marginTop: 6,
alignSelf: 'center',
},
alignSelf: "center"
}
})

function formatNumber (x) {
return x.toFixed(1).replace(/\.?0*$/, '')
function formatNumber(x) {
return x.toFixed(1).replace(/\.?0*$/, "")
}