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react native collapse animation dynamic height
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import React, {useEffect, useImperativeHandle, useState} from 'react'; | |
import {Keyboard, View} from 'react-native'; | |
import {useTheme} from '@react-navigation/native'; | |
import {useSpring, animated} from '@react-spring/native'; | |
import {MyThemeInterfaceColors} from '_styles'; | |
import {GetDimensions} from '_atoms'; | |
import {MultilineTextInput, Button, TextInputRef} from '_molecules'; | |
import {getPercentageInHex, themedStyleSheet} from '_utils'; | |
import {usePrevious} from '_hooks'; | |
export interface FeedbackProps { | |
sectionName: string; | |
} | |
export interface FeedbackRef { | |
open(): void; | |
close(): void; | |
isOpen(): boolean; | |
} | |
export const Feedback = React.forwardRef<FeedbackRef, FeedbackProps>( | |
({sectionName}: FeedbackProps, ref) => { | |
const styles = useStyles(); | |
const colors = useTheme().colors as MyThemeInterfaceColors; | |
const textInputRef = React.createRef<TextInputRef>(); | |
const [isVisible, setIsVisible] = useState(false); | |
const previousVisible = usePrevious(isVisible); | |
const [feedbackText, setFeedbackText] = useState(''); | |
const [dynamicHeight, setDynamicHeight] = useState<Number>(0); | |
const {height, y} = useSpring({ | |
from: {height: 0, opacity: 0, y: 0}, | |
to: { | |
height: isVisible ? dynamicHeight : 0, | |
opacity: isVisible ? 1 : 0, | |
y: isVisible ? 0 : 10, | |
}, | |
}); | |
useEffect(() => { | |
if (isVisible) textInputRef.current?.focus(); | |
}, [isVisible, textInputRef, sectionName]); | |
const open = () => { | |
setFeedbackText(''); | |
setIsVisible(true); | |
}; | |
const close = () => { | |
Keyboard.dismiss(); | |
setIsVisible(false); | |
}; | |
const isOpen = () => isVisible; | |
useImperativeHandle(ref, () => ({open, close, isOpen})); // https://stackoverflow.com/a/64491870 | |
// ───────────────────────────────────────────────────────────────── | |
const onSendFeedback = () => { | |
console.warn('send feedback -', sectionName); | |
close(); | |
// TODO: fullscreen animation with background fade thanks for comments | |
}; | |
// ───────────────────────────────────────────────────────────────── | |
const InsideAnimationContainer = React.memo(() => ( | |
<> | |
<View style={styles.inputTextContainer}> | |
<MultilineTextInput | |
inputRef={textInputRef} | |
value={feedbackText} | |
onChangeText={setFeedbackText} | |
returnKeyType="send" | |
placeholder="¿Alguna idea sobre como mejorar esta parte de la app?" | |
onSubmitEditing={onSendFeedback} | |
/> | |
</View> | |
<View style={styles.buttonsContainer}> | |
<Button | |
text="Cancelar" | |
size="small" | |
onPress={close} | |
style={{ | |
backgroundColor: `#ffffff${getPercentageInHex(10)}`, | |
...styles.button, | |
}} | |
textScale="caption" | |
/> | |
<Button | |
text="Enviar comentarios" | |
size="small" | |
onPress={onSendFeedback} | |
style={{ | |
backgroundColor: colors.bg_green, | |
...styles.button, | |
}} | |
textScale="caption" | |
/> | |
</View> | |
</> | |
)); | |
return ( | |
<animated.View | |
style={{ | |
...styles.touchableContainer, | |
...({ | |
height: | |
isVisible && previousVisible === isVisible ? 'auto' : height, | |
top: y, | |
} || {}), | |
}}> | |
<GetDimensions | |
component={<InsideAnimationContainer />} | |
onDimensions={({height: _height}) => | |
dynamicHeight !== _height ? setDynamicHeight(_height) : null | |
} | |
/> | |
<InsideAnimationContainer /> | |
</animated.View> | |
); | |
}, | |
); | |
// eslint-disable-next-line @typescript-eslint/no-unused-vars | |
const useStyles = themedStyleSheet((colors: MyThemeInterfaceColors) => ({ | |
touchableContainer: { | |
backgroundColor: `#000000${getPercentageInHex(20)}`, | |
}, | |
inputTextContainer: { | |
marginTop: 15, | |
paddingHorizontal: 25, | |
}, | |
button: { | |
borderRadius: 4, | |
height: 'auto', | |
padding: 5, | |
paddingHorizontal: 15, | |
}, | |
buttonsContainer: { | |
flexDirection: 'row', | |
justifyContent: 'space-between', | |
paddingHorizontal: 25, | |
paddingTop: 6, | |
marginBottom: 10, | |
}, | |
})); | |
// https://codesandbox.io/s/github/pmndrs/react-spring/tree/master/demo/src/sandboxes/tree | |
// https://react-spring-visualizer.com/ |
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import React, {useEffect, useState} from 'react'; | |
import {View, ViewProps} from 'react-native'; | |
interface GetDimensionsProps extends ViewProps { | |
component: React.ReactChild[] | React.ReactChild; | |
onDimensions: ({width, height}: {width: Number; height: Number}) => void; | |
} | |
// render the component once (10 milliseconds) & return dimensions | |
export const GetDimensions: React.FC<GetDimensionsProps> = ({ | |
component, | |
onDimensions, | |
...props | |
}: GetDimensionsProps) => { | |
const [isTimeToRenderNull, setIsTimeToRenderNull] = useState(false); | |
useEffect(() => { | |
setTimeout(() => setIsTimeToRenderNull(true), 10); | |
}, []); | |
if (isTimeToRenderNull) return null; | |
return ( | |
<View | |
onLayout={event => | |
onDimensions({ | |
width: Math.round(event.nativeEvent.layout.width), | |
height: Math.round(event.nativeEvent.layout.height), | |
}) | |
} | |
style={{position: 'absolute', width: '100%'}} | |
{...props}> | |
{component} | |
</View> | |
); | |
}; | |
// ──────────────────────────────────────────────────────────────────────────────── | |
// usage | |
// <GetDimensions | |
// component={<View />} | |
// onDimensions={({width, height}) => console.log(width, height)} /> |
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/* eslint-disable no-void */ | |
/* eslint-disable no-return-assign */ | |
import {useEffect, useRef} from 'react'; | |
export function usePrevious<T>(value: T) { | |
const ref = useRef<T>(); | |
useEffect(() => void (ref.current = value), [value]); | |
return ref.current; | |
} |
look good. thank you for sharing
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