can someone help me to make my QR Scanner full screen, here my code :

const App = () => {
  const [scan,setScan] = useState(false)

  const SCREEN_HEIGHT = Dimensions.get('window').height
  return !scan ? (
    <View style={styles.falsecontainer}>
      <Pressable onPress={()=>setScan(true)}>
        <Text style={styles.startButton}>Start Scan</Text>
      </Pressable>
    </View>
  ):(
    <View style={styles.truecontainer}>
      <QRCodeScanner
      cameraStyle={[{height:SCREEN_HEIGHT}]}

      />
    </View>
  )
}

result of my code,

Thanks for helping me

I tried many ways to make my QR code scanner fullscreen, but i didn't work, please help me