index.js

import { Dimensions, Platform, StatusBar } from "react-native";

const STATUSBAR_DEFAULT_HEIGHT = 20;
const STATUSBAR_X_HEIGHT = 44;
const STATUSBAR_IP12_HEIGHT = 47;
const STATUSBAR_IP12MAX_HEIGHT = 47;
const STATUSBAR_IP14PRO_HEIGHT = 49;

const X_WIDTH = 375;
const X_HEIGHT = 812;

const XSMAX_WIDTH = 414;
const XSMAX_HEIGHT = 896;

const IP12_WIDTH = 390;
const IP12_HEIGHT = 844;

const IP12MAX_WIDTH = 428;
const IP12MAX_HEIGHT = 926;

const IP14PRO_WIDTH = 393;
const IP14PRO_HEIGHT = 852;

const IP14PROMAX_WIDTH = 430;
const IP14PROMAX_HEIGHT = 932;

const { height: W_HEIGHT, width: W_WIDTH } = Dimensions.get("window");

let statusBarHeight = STATUSBAR_DEFAULT_HEIGHT;
let isIPhoneX_v = false;
let isIPhoneXMax_v = false;
let isIPhone12_v = false;
let isIPhone12Max_v = false;
let isIPhoneWithMonobrow_v = false;
let isIPhoneWithDynamicIsland_v = false;

if (Platform.OS === "ios" && !Platform.isPad && !Platform.isTVOS) {
  if (W_WIDTH === X_WIDTH && W_HEIGHT === X_HEIGHT) {
    isIPhoneWithMonobrow_v = true;
    isIPhoneX_v = true;
    statusBarHeight = STATUSBAR_X_HEIGHT;
  } else if (W_WIDTH === XSMAX_WIDTH && W_HEIGHT === XSMAX_HEIGHT) {
    isIPhoneWithMonobrow_v = true;
    isIPhoneXMax_v = true;
    statusBarHeight = STATUSBAR_X_HEIGHT;
  } else if (W_WIDTH === IP12_WIDTH && W_HEIGHT === IP12_HEIGHT) {
    isIPhoneWithMonobrow_v = true;
    isIPhone12_v = true;
    statusBarHeight = STATUSBAR_IP12_HEIGHT;
  } else if (W_WIDTH === IP12MAX_WIDTH && W_HEIGHT === IP12MAX_HEIGHT) {
    isIPhoneWithMonobrow_v = true;
    isIPhone12Max_v = true;
    statusBarHeight = STATUSBAR_IP12MAX_HEIGHT;
  } else if (W_WIDTH === IP14PROMAX_WIDTH && W_HEIGHT === IP14PROMAX_HEIGHT) {
    isIPhoneWithDynamicIsland_v = true;
    statusBarHeight = STATUSBAR_IP14PRO_HEIGHT;
  } else if (W_WIDTH === IP14PRO_WIDTH && W_HEIGHT === IP14PRO_HEIGHT) {
    isIPhoneWithDynamicIsland_v = true;
    statusBarHeight = STATUSBAR_IP14PRO_HEIGHT;
  }
}

export const isIPhoneX = () => isIPhoneX_v;
export const isIPhoneXMax = () => isIPhoneXMax_v;
export const isIPhone12 = () => isIPhone12_v;
export const isIPhone12Max = () => isIPhone12Max_v;
export const isIPhoneWithMonobrow = () => isIPhoneWithMonobrow_v;
export const isIPhoneWithDynamicIsland = () => isIPhoneWithDynamicIsland_v;

const getExpoRoot = () => global.Expo || global.__expo || global.__exponent;

export const isExpo = () => getExpoRoot() !== undefined;

export function getStatusBarHeight(skipAndroid) {
  return Platform.select({
    ios: statusBarHeight,
    android: skipAndroid ? 0 : StatusBar.currentHeight,
    default: 0,
  });
}