LayoutView: Moti + Framer Motion + React Native (+ Web)

readme.md

Simply put, layout animations differ in React Native and React Native Web.

This gist is a simple approach to let you use one component to power layout animations across both platforms.

<LayoutView>
  <Text>Lay me out</Text>
</LayoutView>

You can use the layout prop to pass true, false, or a framer motion value. You can also pass reanimated Layout here (which will be the default, unless you pass layout={false}.

<LayoutView layout="size" layoutId="indicator">
  <View />
</LayoutView>

You can also use layoutId, although this will only work on Web. On Native, you'd need to use the component's key and ensure that the component stays in the same place in the tree.

index.tsx

import { MotiView } from 'moti'
import { styled } from 'dripsy'
import { LayoutViewProps } from './types'
import { Layout } from 'react-native-reanimated'

const LayoutView = ({ state, layout, ...props }: LayoutViewProps) => (
  <MotiView
    state={state}
    layout={
      layout === false
        ? undefined
        : typeof layout == 'string' || layout === true
        ? Layout.duration(200)
        : layout
    }
    {...props}
  />
)

export { LayoutView }

index.web.tsx

import { unstable_createElement } from 'react-native-web'
import { motion } from 'framer-motion'
import type { LayoutViewProps } from './types'

/**
 * @deprecated wrong import
 * we write this to prevent importing this file, since you should always import from index
 */
const LayoutView = ({ layout = true, ...props }: LayoutViewProps) => {
  return unstable_createElement(motion.div, {
    layout: typeof layout == 'string' ? layout : Boolean(layout),
    ...props,
  })
}

LayoutView.displayName = 'LayoutView'

export { LayoutView }

types.ts

import type { motion } from 'framer-motion'
import type { MotiView } from 'moti'
import type { ComponentProps } from 'react'
import type Animated from 'react-native-reanimated'

export type LayoutViewProps = {
  children?: React.ReactNode
  layout?: ComponentProps<typeof Animated.View | typeof motion.div>['layout']
} & Pick<ComponentProps<typeof motion.div>, 'layoutId'> &
  Pick<ComponentProps<typeof MotiView>, 'state'>