获取设备型号

有时候需要根据设备来调整控件的位置，下面的方法就会用到。

#import "UIDevice+SystemInfo.h"
#import "sys/utsname.h"


@implementation UIDevice (SystemInfo)

-(NSString *)systemInfo
{
    NSString *platform=[self getDeviceVersion];

    NSLog(@"platform=%@",platform);
        //手机
    if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone1G";

    if ([platform isEqualToString:@"iPhone1,2"]) return @"iPhone3G";

    if ([platform isEqualToString:@"iPhone2,1"]) return @"iPhone3GS";

    if ([platform isEqualToString:@"iPhone3,1"]) return @"iPhone4";

    if ([platform isEqualToString:@"iPhone3,2"]) return @"Verizon iPhone 4";

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

    if ([platform isEqualToString:@"iPhone4,1"]) return @"iPhone4S";

    if ([platform isEqualToString:@"iPhone5,1"]) return @"iPhone 5 (GSM/WCDMA)";

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

    if ([platform isEqualToString:@"iPhone5,3"]) return @"iPhone 5c";

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

//    if ([platform isEqualToString:@"iPhone4,2"]) return @"iPhone 5 (CDMA)";

    if ([platform isEqualToString:@"iPhone6,1"]) return @"iPhone 5s";

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

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

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

//    if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone1G";
//    if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone1G";

        //iPod Touch
    if ([platform isEqualToString:@"iPod1,1"])     return@"iPod Touch 1G";

    if ([platform isEqualToString:@"iPod2,1"])     return@"iPod Touch 2G";

    if ([platform isEqualToString:@"iPod3,1"])     return@"iPod Touch 3G";

    if ([platform isEqualToString:@"iPod4,1"])     return@"iPod Touch 4G";

    if ([platform isEqualToString:@"iPod5,1"])     return@"iPod Touch 5G";

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

    if ([platform isEqualToString:@"iPad2,1"])     return@"iPad 2(WiFi)";

    if ([platform isEqualToString:@"iPad2,2"])   return@"iPad2 (GSM)";

    if ([platform isEqualToString:@"iPad2,3"])     return@"iPad 2(CDMA)";

    if ([platform isEqualToString:@"iPad2,4"])   return@"iPad2 New";

    if ([platform isEqualToString:@"iPad2,5"])     return@"iPad Mini (WiFi)";

    if ([platform isEqualToString:@"iPad2,6"])     return@"iPad Mini";

    if ([platform isEqualToString:@"iPad2,7"])     return@"iPad Mini";

    if ([platform isEqualToString:@"iPad3,1"])     return@"iPad 3(WiFi)";

    if ([platform isEqualToString:@"iPad3,2"])     return@"iPad 3(CDMA)";

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

    if ([platform isEqualToString:@"iPad3,4"])     return@"iPad 4(WiFi)";

    if ([platform isEqualToString:@"iPad3,5"])     return@"iPad 4(WiFi)";

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

    if ([platform isEqualToString:@"iPad4,1"])     return@"iPad air(WiFi)";

    if ([platform isEqualToString:@"iPad4,2"])     return@"iPad air";

    if ([platform isEqualToString:@"iPad4,3"])     return@"iPad air";

    if ([platform isEqualToString:@"iPad4,4"])     return@"iPad mini";

    if ([platform isEqualToString:@"iPad4,5"])     return@"iPad mini";

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

    if ([platform isEqualToString:@"i386"] || [platform isEqualToString:@"x86_64"])       return@"Simulator";

    return platform;
}

-(NSString *)getDeviceVersion
{
    struct utsname systemInfo;
    uname(&systemInfo);
    NSString *deviceStr=[NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
    return deviceStr;
}


@end