这是iOS 3.2的UIDevice的一部分，例如:

[UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad

很多答案都很好，但我在swift 4中使用这样的答案

创建常量 struct App { 静态let isRunningOnIpad = UIDevice.current.userInterfaceIdiom == .pad ?True: false ｝ 像这样使用 if App.isRunningOnIpad { 返回加载(from: .main, identifier: identifier) }其他{ 返回加载(from: .ipad, identifier: identifier) ｝

编辑:建议ceure简单地在UIDevice上创建一个扩展

extension UIDevice {
    static let isRunningOnIpad = UIDevice.current.userInterfaceIdiom == .pad ? true : false
}

if(UI_USER_INTERFACE_IDIOM () == UIUserInterfaceIdiom.pad)
 {
            print("This is iPad")
 }else if (UI_USER_INTERFACE_IDIOM () == UIUserInterfaceIdiom.phone)
 {
            print("This is iPhone");
  }

*

在swift 3.0中

*

 if UIDevice.current.userInterfaceIdiom == .pad {
        //pad
    } else if UIDevice.current.userInterfaceIdiom == .phone {
        //phone
    } else if UIDevice.current.userInterfaceIdiom == .tv {
        //tv
    } else if UIDevice.current.userInterfaceIdiom == .carPlay {
        //CarDisplay
    } else {
        //unspecified
    }

我发现在Xcode中的模拟器中，有些解决方案并不适合我。相反，这是可行的:

ObjC

NSString *deviceModel = (NSString*)[UIDevice currentDevice].model;

if ([[deviceModel substringWithRange:NSMakeRange(0, 4)] isEqualToString:@"iPad"]) {
    DebugLog(@"iPad");
} else {
    DebugLog(@"iPhone or iPod Touch");
}

斯威夫特

if UIDevice.current.model.hasPrefix("iPad") {
    print("iPad")
} else {
    print("iPhone or iPod Touch")
}

同样在Xcode中的“其他示例”中，设备模型返回为“iPad模拟器”，因此上述调整应该将其整理出来。

在Swift 4.2和Xcode 10中

if UIDevice().userInterfaceIdiom == .phone {
    //This is iPhone
} else if UIDevice().userInterfaceIdiom == .pad { 
    //This is iPad
} else if UIDevice().userInterfaceIdiom == .tv {
    //This is Apple TV
}

如果你想检测特定的设备

let screenHeight = UIScreen.main.bounds.size.height
if UIDevice().userInterfaceIdiom == .phone {
    if (screenHeight >= 667) {
        print("iPhone 6 and later")
    } else if (screenHeight == 568) {
        print("SE, 5C, 5S")
    } else if(screenHeight<=480){
        print("4S")
    }
} else if UIDevice().userInterfaceIdiom == .pad { 
    //This is iPad
}