ios开发之--所有设备的屏幕尺寸

所有设备型号官网地址：https://www.theiphonewiki.com/wiki/Models

1、导入#import <sys/utsname.h>

2、#import <sys/utsname.h>

```

+ (NSString *)deviceType{

    struct utsname systemInfo;

    uname(&systemInfo);

    NSString *platform = [NSString stringWithCString:systemInfo.machine encoding:NSASCIIStringEncoding];

    //------------------------------iPhone---------------------------

    if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone 2G";

    if ([platform isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";

    if ([platform isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";

    if ([platform isEqualToString:@"iPhone3,1"] ||

        [platform isEqualToString:@"iPhone3,2"] ||

        [platform isEqualToString:@"iPhone3,3"]) return @"iPhone 4";

    if ([platform isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";

    if ([platform isEqualToString:@"iPhone5,1"] ||

        [platform isEqualToString:@"iPhone5,2"]) return @"iPhone 5";

    if ([platform isEqualToString:@"iPhone5,3"] ||

        [platform isEqualToString:@"iPhone5,4"]) return @"iPhone 5c";

    if ([platform isEqualToString:@"iPhone6,1"] ||

        [platform isEqualToString:@"iPhone6,2"]) return @"iPhone 5s";

    if ([platform isEqualToString:@"iPhone7,2"]) return @"iPhone 6";

    if ([platform isEqualToString:@"iPhone7,1"]) return @"iPhone 6 Plus";

    if ([platform isEqualToString:@"iPhone8,1"]) return @"iPhone 6s";

    if ([platform isEqualToString:@"iPhone8,2"]) return @"iPhone 6s Plus";

    if ([platform isEqualToString:@"iPhone8,4"]) return @"iPhone SE";

    if ([platform isEqualToString:@"iPhone9,1"] ||

        [platform isEqualToString:@"iPhone9,3"]) return @"iPhone 7";

    if ([platform isEqualToString:@"iPhone9,2"] ||

        [platform isEqualToString:@"iPhone9,4"]) return @"iPhone 7 Plus";

    if ([platform isEqualToString:@"iPhone10,1"] ||

        [platform isEqualToString:@"iPhone10,4"]) return @"iPhone 8";

    if ([platform isEqualToString:@"iPhone10,2"] ||

        [platform isEqualToString:@"iPhone10,5"]) return @"iPhone 8 Plus";

    if ([platform isEqualToString:@"iPhone10,3"] ||

        [platform isEqualToString:@"iPhone10,6"]) return @"iPhone X";

    if ([platform isEqualToString:@"iPhone11,8"]) return @"iPhone XR";

    if ([platform isEqualToString:@"iPhone11,2"]) return @"iPhone XS";

    if ([platform isEqualToString:@"iPhone11,4"] ||

        [platform isEqualToString:@"iPhone11,6"]) return @"iPhone XS Max";

    if ([platform isEqualToString:@"iPhone12,1"]) return @"iPhone 11";

    if ([platform isEqualToString:@"iPhone12,3"]) return @"iPhone 11 Pro";

    if ([platform isEqualToString:@"iPhone12,5"]) return @"iPhone 11 Pro Max";

    //------------------------------iPad--------------------------

    if ([platform isEqualToString:@"iPad1,1"]) return @"iPad";

    if ([platform isEqualToString:@"iPad2,1"] ||

        [platform isEqualToString:@"iPad2,2"] ||

        [platform isEqualToString:@"iPad2,3"] ||

        [platform isEqualToString:@"iPad2,4"]) return @"iPad 2";

    if ([platform isEqualToString:@"iPad3,1"] ||

        [platform isEqualToString:@"iPad3,2"] ||

        [platform isEqualToString:@"iPad3,3"]) return @"iPad 3";

    if ([platform isEqualToString:@"iPad3,4"] ||

        [platform isEqualToString:@"iPad3,5"] ||

        [platform isEqualToString:@"iPad3,6"]) return @"iPad 4";

    if ([platform isEqualToString:@"iPad4,1"] ||

        [platform isEqualToString:@"iPad4,2"] ||

        [platform isEqualToString:@"iPad4,3"]) return @"iPad Air";

    if ([platform isEqualToString:@"iPad5,3"] ||

        [platform isEqualToString:@"iPad5,4"]) return @"iPad Air 2";

    if ([platform isEqualToString:@"iPad6,3"] ||

        [platform isEqualToString:@"iPad6,4"]) return @"iPad Pro 9.7-inch";

    if ([platform isEqualToString:@"iPad6,7"] ||

        [platform isEqualToString:@"iPad6,8"]) return @"iPad Pro 12.9-inch";

    if ([platform isEqualToString:@"iPad6,11"] ||

        [platform isEqualToString:@"iPad6,12"]) return @"iPad 5";

    if ([platform isEqualToString:@"iPad7,11"] ||

        [platform isEqualToString:@"iPad7,12"]) return @"iPad 6";

    if ([platform isEqualToString:@"iPad7,1"] ||

        [platform isEqualToString:@"iPad7,2"]) return @"iPad Pro 12.9-inch 2";

    if ([platform isEqualToString:@"iPad7,3"] ||

        [platform isEqualToString:@"iPad7,4"]) return @"iPad Pro 10.5-inch";

//------------------------------iPad Mini-----------------------

    if ([platform isEqualToString:@"iPad2,5"] ||

        [platform isEqualToString:@"iPad2,6"] ||

        [platform isEqualToString:@"iPad2,7"]) return @"iPad mini";

    if ([platform isEqualToString:@"iPad4,4"] ||

        [platform isEqualToString:@"iPad4,5"] ||

        [platform isEqualToString:@"iPad4,6"]) return @"iPad mini 2";

    if ([platform isEqualToString:@"iPad4,7"] ||

        [platform isEqualToString:@"iPad4,8"] ||

        [platform isEqualToString:@"iPad4,9"]) return @"iPad mini 3";

    if ([platform isEqualToString:@"iPad5,1"] ||

        [platform isEqualToString:@"iPad5,2"]) return @"iPad mini 4";

    //------------------------------iTouch------------------------

    if ([platform isEqualToString:@"iPod1,1"]) return @"iTouch";

    if ([platform isEqualToString:@"iPod2,1"]) return @"iTouch2";

    if ([platform isEqualToString:@"iPod3,1"]) return @"iTouch3";

    if ([platform isEqualToString:@"iPod4,1"]) return @"iTouch4";

    if ([platform isEqualToString:@"iPod5,1"]) return @"iTouch5";

    if ([platform isEqualToString:@"iPod7,1"]) return @"iTouch6";

   //------------------------------Samulitor-------------------------------------

    if ([platform isEqualToString:@"i386"] ||

        [platform isEqualToString:@"x86_64"]) return @"iPhone Simulator";

        return @"Unknown";

}

```

3、屏幕尺寸