useWindowDimensions

import {useWindowDimensions} from 'react-native';

const {height, width} = useWindowDimensions();

import React from 'react';
import {StyleSheet, Text, useWindowDimensions} from 'react-native';
import {SafeAreaView, SafeAreaProvider} from 'react-native-safe-area-context';

const App = () => {
  const {height, width, scale, fontScale} = useWindowDimensions();
  return (
    <SafeAreaProvider>
      <SafeAreaView style={styles.container}>
        <Text style={styles.header}>Window Dimension Data</Text>
        <Text>Height: {height}</Text>
        <Text>Width: {width}</Text>
        <Text>Font scale: {fontScale}</Text>
        <Text>Pixel ratio: {scale}</Text>
      </SafeAreaView>
    </SafeAreaProvider>
  );
};
const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  header: {
    fontSize: 20,
    marginBottom: 12,
  },
});

export default App;

useWindowDimensions().fontScale;

useWindowDimensions().height;

useWindowDimensions().scale;

useWindowDimensions().width;