swift判断iPhone 各种型号

// iPhoneXR
let iPhoneXR:Bool = __CGSizeEqualToSize(CGSize(width: 828, height: 1792), UIScreen.main.currentMode?.size ?? CGSize(width: 0, height: 0));

// iPhoneX
let iPhoneX:Bool = __CGSizeEqualToSize(CGSize(width: 1125, height: 2436), UIScreen.main.currentMode?.size ?? CGSize(width: 0, height: 0));

// iPhoneXSMAX
let iPhoneXSMAX:Bool = __CGSizeEqualToSize(CGSize(width: 1242, height: 2688), UIScreen.main.currentMode?.size ?? CGSize(width: 0, height: 0));

// 判断是否是X系列的
let is_X_Seris:Bool = iPhoneXR || iPhoneXSMAX || iPhoneX;