React Example: React Native

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import * as React from 'react'
import { AppStateStatus, Platform } from 'react-native'
import { NavigationContainer } from '@react-navigation/native'
import {
  QueryClient,
  QueryClientProvider,
  focusManager,
} from '@tanstack/react-query'

import { useAppState } from './src/hooks/useAppState'
import { MoviesStack } from './src/navigation/MoviesStack'
import { useOnlineManager } from './src/hooks/useOnlineManager'

function onAppStateChange(status: AppStateStatus) {
  // React Query already supports in web browser refetch on window focus by default
  if (Platform.OS !== 'web') {
    focusManager.setFocused(status === 'active')
  }
}

const queryClient = new QueryClient({
  defaultOptions: { queries: { retry: 2 } },
})

export default function App() {
  useOnlineManager()

  useAppState(onAppStateChange)

  return (
    <QueryClientProvider client={queryClient}>
      <NavigationContainer>
        <MoviesStack />
      </NavigationContainer>
    </QueryClientProvider>
  )
}