In React Native iOS, I would like to slide in and out of a like in the following picture.
In the following example, when a button is pressed, the Payment Information view pops up from the bottom, and when the collapse button is pressed, it goes back down and disappears.
What would be the correct and proper way to go about doing so?
Thank you in advance!
EDIT
Basically, you need to absolute-position your view to the bottom of the screen. Then you translate its y value to equal its height. (The sub view must have a specific height in order to know how much to move it)
Code:
'use strict';
import React, {Component} from 'react';
import ReactNative from 'react-native';
const {
AppRegistry,
StyleSheet,
Text,
View,
TouchableHighlight,
Animated
} = ReactNative;
var isHidden = true;
class AppContainer extends Component {
constructor(props) {
super(props);
this.state = {
bounceValue: new Animated.Value(100), //This is the initial position of the subview
buttonText: "Show Subview"
};
}
_toggleSubview() {
this.setState({
buttonText: !isHidden ? "Show Subview" : "Hide Subview"
});
var toValue = 100;
if(isHidden) {
toValue = 0;
}
//This will animate the transalteY of the subview between 0 & 100 depending on its current state
//100 comes from the style below, which is the height of the subview.
Animated.spring(
this.state.bounceValue,
{
toValue: toValue,
velocity: 3,
tension: 2,
friction: 8,
}
).start();
isHidden = !isHidden;
}
render() {
return (
<View style={styles.container}>
<TouchableHighlight style={styles.button} onPress={()=> {this._toggleSubview()}}>
<Text style={styles.buttonText}>{this.state.buttonText}</Text>
</TouchableHighlight>
<Animated.View
style={[styles.subView,
{transform: [{translateY: this.state.bounceValue}]}]}
>
<Text>This is a sub view</Text>
</Animated.View>
</View>
);
}
}
var styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
marginTop: 66
},
button: {
padding: 8,
},
buttonText: {
fontSize: 17,
color: "#007AFF"
},
subView: {
position: "absolute",
bottom: 0,
left: 0,
right: 0,
backgroundColor: "#FFFFFF",
height: 100,
}
});
AppRegistry.registerComponent('AppContainer', () => AppContainer);
I know it is a little bit late, but thought it might be useful for someone. You should try out a component called rn-sliding-out-panel. It works awesomely. https://github.com/octopitus/rn-sliding-up-panel
<SlidingUpPanel
draggableRange={top: 1000, bottom: 0}
showBackdrop={true|false /*For making it modal-like*/}
ref={c => this._panel = c}
visible={ture|false /*If you want it to be visible on load*/}
></SlidingUpPanel>
And you can even open it from an external button:
<Button onPress={()=>{this._panel.transitionTo(1000)}} title='Expand'></Button>
You can install it via npm: sudo npm install rn-sliding-out-panel --save on your react-native root directory.
I hope it helps someone :D
I've created a reusable BottomSheet component that accepts any content.
This is how it looks like:
Here's the code (in TypeScript) of the BottomSheet component:
import * as React from 'react'
import {
Animated,
Easing,
Pressable,
StyleSheet,
useWindowDimensions,
View,
} from 'react-native'
const DEFAULT_HEIGHT = 300
function useAnimatedBottom(show: boolean, height: number = DEFAULT_HEIGHT) {
const animatedValue = React.useRef(new Animated.Value(0))
const bottom = animatedValue.current.interpolate({
inputRange: [0, 1],
outputRange: [-height, 0],
})
React.useEffect(() => {
if (show) {
Animated.timing(animatedValue.current, {
toValue: 1,
duration: 350,
// Accelerate then decelerate - https://cubic-bezier.com/#.28,0,.63,1
easing: Easing.bezier(0.28, 0, 0.63, 1),
useNativeDriver: false, // 'bottom' is not supported by native animated module
}).start()
} else {
Animated.timing(animatedValue.current, {
toValue: 0,
duration: 250,
// Accelerate - https://easings.net/#easeInCubic
easing: Easing.cubic,
useNativeDriver: false,
}).start()
}
}, [show])
return bottom
}
interface Props {
children: React.ReactNode
show: boolean
height?: number
onOuterClick?: () => void
}
export function BottomSheet({
children,
show,
height = DEFAULT_HEIGHT,
onOuterClick,
}: Props) {
const { height: screenHeight } = useWindowDimensions()
const bottom = useAnimatedBottom(show, height)
return (
<>
{/* Outer semitransparent overlay - remove it if you don't want it */}
{show && (
<Pressable
onPress={onOuterClick}
style={[styles.outerOverlay, { height: screenHeight }]}
>
<View />
</Pressable>
)}
<Animated.View style={[styles.bottomSheet, { height, bottom }]}>
{children}
</Animated.View>
</>
)
}
const styles = StyleSheet.create({
outerOverlay: {
position: 'absolute',
width: '100%',
zIndex: 1,
backgroundColor: 'black',
opacity: 0.3,
},
bottomSheet: {
position: 'absolute',
width: '100%',
zIndex: 1,
// Here you can set a common style for all bottom sheets, or nothing if you
// want different designs
backgroundColor: 'dodgerblue',
borderRadius: 16,
},
})
I put this code in a file named BottomSheet.tsx.
This is how you use the BottomSheet:
import * as React from 'react'
import {
Pressable,
SafeAreaView,
StatusBar,
StyleSheet,
Text,
View,
} from 'react-native'
import { BottomSheet } from './src/BottomSheet'
const App = () => {
const [showBottomSheet, setShowBottomSheet] = React.useState(false)
const hide = () => {
setShowBottomSheet(false)
}
return (
<SafeAreaView style={styles.safeAreaView}>
<StatusBar barStyle={'dark-content'} />
<View style={styles.container}>
<Pressable
onPress={() => {
setShowBottomSheet(true)
}}
style={styles.showButton}
>
<Text style={styles.buttonText}>Show bottom sheet</Text>
</Pressable>
</View>
<BottomSheet show={showBottomSheet} height={290} onOuterClick={hide}>
<View style={styles.bottomSheetContent}>
<Text style={styles.bottomSheetText}>Hey boys, hey girls!</Text>
<Pressable onPress={hide} style={styles.bottomSheetCloseButton}>
<Text style={styles.buttonText}>X Close</Text>
</Pressable>
</View>
</BottomSheet>
</SafeAreaView>
)
}
const styles = StyleSheet.create({
safeAreaView: {
flex: 1,
},
container: {
flex: 1,
},
showButton: {
marginTop: 48,
padding: 16,
backgroundColor: 'mediumspringgreen',
alignSelf: 'center',
borderRadius: 8,
},
buttonText: {
fontSize: 20,
},
bottomSheetContent: {
padding: 40,
alignItems: 'center',
},
bottomSheetText: {
fontSize: 24,
marginBottom: 80,
},
bottomSheetCloseButton: {
padding: 16,
backgroundColor: 'deeppink',
borderRadius: 8,
},
})
export default App
Notes:
onOuterClick callback, which is optional - don't pass it if you don't want to do anything.
After a quite long search I found very good library called react-native-swipe-down with MIT licence.
It will help you make a slider <View /> with no effort.
I Hope this library help you out.
import SwipeUpDown from 'react-native-swipe-up-down';
<SwipeUpDown
itemMini={<ItemMini />} // Pass props component when collapsed
itemFull={<ItemFull />} // Pass props component when show full
onShowMini={() => console.log('mini')}
onShowFull={() => console.log('full')}
onMoveDown={() => console.log('down')}
onMoveUp={() => console.log('up')}
disablePressToShow={false} // Press item mini to show full
style={{ backgroundColor: 'green' }} // style for swipe
/>
To achieve above type of requirement, we can take help of some great libraries
But if we want to do it natively, please find code shown below, I'll try to justify the answer:)
For some animation effects I'll take reference from blow site how-to-create-moving-animations-in-react-native
import React, { useState } from 'react'
import { SafeAreaView, View, ScrollView, Text, Dimensions, TouchableOpacity, Animated } from 'react-native'
const App = () => {
const { height, width } = Dimensions.get('window')
const SCREEN_HEIGHT = Math.round(height)
const SCREEN_WIDTH = Math.round(width)
// Animation
const startValue = new Animated.Value(Math.round(height + height * 0.3))
const endValue = Math.round(height - height * 0.3)
const duration = 1000
const _showBottomView = (key) => {
const toValue = key === 'HIDE' ? height : endValue
Animated.timing(startValue, {
toValue,
duration: duration,
useNativeDriver: true,
}).start()
}
return (
<SafeAreaView style={{ flex: 1, backgroundColor: 'rgba(0,0,0,0.1)' }}>
{/* Header */}
<View style={{ flex: 1, alignItems: 'center', justifyContent: 'center', borderWidth: 1, borderColor: 'black', margin: 5 }}>
<Text>
Header
</Text>
</View>
<View style={{ flex: 9, borderWidth: 1, borderColor: 'black', margin: 5 }}>
<ScrollView
style={{ flex: 1 }}>
{/* Title View */}
<View style={{ height: SCREEN_HEIGHT * 0.1, width: '95%', borderColor: 'black', borderWidth: 1, marginLeft: '2.5%', marginTop: SCREEN_HEIGHT * 0.01, alignItems: 'center', justifyContent: 'center', }}>
<Text>
Content ONE
</Text>
</View>
<View style={{ height: SCREEN_HEIGHT * 0.5, width: '95%', borderColor: 'black', borderWidth: 1, marginLeft: '2.5%', marginTop: SCREEN_HEIGHT * 0.01, alignItems: 'center', justifyContent: 'center', }}>
<Text>
Content TWO
</Text>
</View>
<View style={{ height: SCREEN_HEIGHT * 0.2, width: '95%', borderColor: 'black', borderWidth: 1, marginLeft: '2.5%', marginTop: SCREEN_HEIGHT * 0.01, alignItems: 'center', justifyContent: 'center', }}>
<TouchableOpacity
activeOpacity={0.85}
onPress={() => _showBottomView()}
style={{ height: SCREEN_HEIGHT * 0.065, width: '75%', borderRadius: 5, borderWidth: 1, borderColor: 'green', alignItems: 'center', justifyContent: 'center', }}>
<Text>
SHOW BOTTOM VIEW
</Text>
</TouchableOpacity>
</View>
<View style={{ height: SCREEN_HEIGHT * 0.3, width: '95%', borderColor: 'black', borderWidth: 1, marginLeft: '2.5%', marginTop: SCREEN_HEIGHT * 0.01, alignItems: 'center', justifyContent: 'center', marginBottom: SCREEN_HEIGHT * 0.01 }}>
<Text>
...REST_CONTENT...
</Text>
</View>
</ScrollView>
</View>
{/* Bottom view */}
<Animated.View
style={[
{
position: 'absolute',
height: height * 0.3,
width: width,
backgroundColor: 'white',
alignItems: 'center', justifyContent: 'center',
borderTopRightRadius: 23, borderTopLeftRadius: 23,
transform: [
{
translateY: startValue
},
],
},
]} >
<TouchableOpacity
activeOpacity={0.85}
onPress={() => _showBottomView('HIDE')}
style={{ height: SCREEN_HEIGHT * 0.065, width: '75%', borderRadius: 5, borderWidth: 1, borderColor: 'green', alignItems: 'center', justifyContent: 'center', }}>
<Text>
HIDE BOTTOM VIEW
</Text>
</TouchableOpacity>
</Animated.View>
</SafeAreaView>
)
}
export default App
Demo
