判斷設備是否爲iPhone5的方法

1.在程序中涉及到全屏的寬高的時候，初始化的時候，代碼中不要寫320和480

#define Screen_height   [[UIScreen mainScreen] bounds].size.height

#define Screen_width    [[UIScreen mainScreen] bounds].size.width 

 

2.使用宏定義方法判斷

#define iPhone5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO)

if（iPhone5）{

    /*代碼操作*/

}else{

    /*代碼操作*/

}

在網上又找到另外一種方法：

+ (NSString*)deviceString  

{  

    // 需要#import "sys/utsname.h"  

    struct utsname systemInfo;  

    uname(&systemInfo);  

    NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];  

       

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

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

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

    if ([deviceString isEqualToString:@"iPhone3,1"])    return @"iPhone 4";  

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

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

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

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

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

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

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

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

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

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

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

    if ([deviceString isEqualToString:@"i386"])         return @"Simulator";  

    if ([deviceString isEqualToString:@"x86_64"])       return @"Simulator";  

    NSLog(@"NOTE: Unknown device type: %@", deviceString);  

    return deviceString;  

}