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23 changes: 23 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ yarn add @react-native-community/hooks
- [useInteractionManager](https://github.com/react-native-community/hooks#useinteractionmanager)
- [useDeviceOrientation](https://github.com/react-native-community/hooks#usedeviceorientation)
- [useLayout](https://github.com/react-native-community/hooks#uselayout)
- [useAnimatedValue](https://github.com/react-native-community/hooks#useAnimatedValue)

### `useAccessibilityInfo`

Expand Down Expand Up @@ -113,6 +114,9 @@ const keyboard = useKeyboard()

console.log('keyboard isKeyboardShow: ', keyboard.keyboardShown)
console.log('keyboard keyboardHeight: ', keyboard.keyboardHeight)
console.log('keyboard animatedKeyboardHeight: ', keyboard.animatedKeyboardHeight)

<Animated.View style={{height: keyboard.animatedKeyboardHeight}} />
```

### `useInteractionManager`
Expand Down Expand Up @@ -148,6 +152,25 @@ console.log('layout: ', layout)
<View onLayout={onLayout} style={{width: 200, height: 200, marginTop: 30}} />
```

### `useAnimatedValue`

```js
import { useAnimatedValue } from '@react-native-community/hooks'

const animatedValue = useAnimatedValue(0)

useEffect(() => {
Animated.timing(animatedValue, {
duration: 250,
toValue: 200,
}).start()
}, [])

console.log('value: ', animatedValue)

<Animated.View onLayout={onLayout} style={{width: 200, height: animatedValue, marginTop: 30}} />
```

[version-badge]: https://img.shields.io/npm/v/@react-native-community/hooks.svg?style=flat-square
[package]: https://www.npmjs.com/package/@react-native-community/hooks

Expand Down
2 changes: 2 additions & 0 deletions src/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import {useKeyboard} from './useKeyboard'
import {useInteractionManager} from './useInteractionManager'
import {useDeviceOrientation} from './useDeviceOrientation'
import {useLayout} from './useLayout'
import {useAnimatedValue} from './useAnimatedValue'

export {
useDimensions,
Expand All @@ -20,4 +21,5 @@ export {
useInteractionManager,
useDeviceOrientation,
useLayout,
useAnimatedValue,
}
7 changes: 7 additions & 0 deletions src/useAnimatedValue.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
import {useRef} from 'react'
import {Animated} from 'react-native'

export const useAnimatedValue = (initialValue: number): Animated.Value => {
const ref = useRef(new Animated.Value(initialValue))
return ref.current
}
25 changes: 24 additions & 1 deletion src/useKeyboard.ts
Original file line number Diff line number Diff line change
@@ -1,5 +1,12 @@
import {useEffect, useState} from 'react'
import {Keyboard, KeyboardEventListener, ScreenRect} from 'react-native'
import {
Keyboard,
KeyboardEventListener,
ScreenRect,
Animated,
} from 'react-native'

import {useAnimatedValue} from './useAnimatedValue'

export function useKeyboard() {
const [shown, setShown] = useState(false)
Expand All @@ -11,9 +18,16 @@ export function useKeyboard() {
end: {screenX: 0, screenY: 0, width: 0, height: 0},
})
const [keyboardHeight, setKeyboardHeight] = useState<number>(0)
const animatedKeyboardHeight = useAnimatedValue(0)

const handleKeyboardWillShow: KeyboardEventListener = (e) => {
setCoordinates({start: e.startCoordinates, end: e.endCoordinates})

// Start raise keyboard animated value
Animated.timing(animatedKeyboardHeight, {
duration: e.duration,
toValue: e.endCoordinates.height,
}).start()
}
const handleKeyboardDidShow: KeyboardEventListener = (e) => {
setShown(true)
Expand All @@ -22,6 +36,12 @@ export function useKeyboard() {
}
const handleKeyboardWillHide: KeyboardEventListener = (e) => {
setCoordinates({start: e.startCoordinates, end: e.endCoordinates})

// Start close keyboard animated value
Animated.timing(animatedKeyboardHeight, {
duration: e.duration,
toValue: 0,
}).start()
}
const handleKeyboardDidHide: KeyboardEventListener = (e) => {
setShown(false)
Expand All @@ -42,12 +62,15 @@ export function useKeyboard() {
Keyboard.removeListener('keyboardDidShow', handleKeyboardDidShow)
Keyboard.removeListener('keyboardWillHide', handleKeyboardWillHide)
Keyboard.removeListener('keyboardDidHide', handleKeyboardDidHide)
animatedKeyboardHeight.stopAnimation()
}
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [])

return {
keyboardShown: shown,
coordinates,
keyboardHeight,
animatedKeyboardHeight,
}
}