iOS 设备检查 xcode 5

Question

希望大家今天过得愉快。我已经根据我在堆栈溢出中遇到的东西实现了一个设备检查文件，我一直无法找到原始帖子来通过它。如果我碰巧遇到，我会引用它。

这曾经在以前的 xcode 4.x 上运行良好，但对于 xcode 5 我收到此错误。

读取字典元素的预期方法在“NSDictionary *”类型的对象上找不到 NSString *deviceName = commonNamesDictionary[machineName];

我设法找到了这个，但它适用于 iOS 5 到 iOS6 How to enable the new Objective-C object literals on iOS?

实现的代码如下。显然，直到 iphone 5 才确定如何添加新的手机拱门。

.h 实现

#import <Foundation/Foundation.h>
#import <sys/utsname.h> //to check if its a iphone 4s or iphone 5
@interface deviceCheck : NSObject

+(NSString*)deviceModelName;

@end

.m 实现

#import "deviceCheck.h"
@implementation deviceCheck

* device checking method to tell the difference between devices */
+(NSString*)deviceModelName
{
struct utsname systemInfo;
uname(&systemInfo);
NSString *machineName = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
NSDictionary *commonNamesDictionary =
@{
  @"i386":     @"iPhone Simulator",
  @"x86_64":   @"iPad Simulator",

  @"iPhone1,1":    @"iPhone",
  @"iPhone1,2":    @"iPhone 3G",
  @"iPhone2,1":    @"iPhone 3GS",
  @"iPhone3,1":    @"iPhone 4",
  @"iPhone4,1":    @"iPhone 4S",
  @"iPhone5,1":    @"iPhone 5(GSM)",
  @"iPhone5,2":    @"iPhone 5(GSM+CDMA)",

  @"iPad1,1":  @"iPad",
  @"iPad2,1":  @"iPad 2(WiFi)",
  @"iPad2,2":  @"iPad 2(GSM)",
  @"iPad2,3":  @"iPad 2(CDMA)",
  @"iPad2,4":  @"iPad 2(WiFi Rev A)",
  @"iPad2,5":  @"iPad Mini(WiFi)",
  @"iPad2,6":  @"iPad Mini(GSM)",
  @"iPad2,7":  @"iPad Mini(GSM+CDMA)",
  @"iPad3,1":  @"iPad 3(WiFi)",
  @"iPad3,2":  @"iPad 3(GSM+CDMA)",
  @"iPad3,3":  @"iPad 3(GSM)",
  @"iPad3,4":  @"iPad 4(WiFi)",
  @"iPad3,5":  @"iPad 4(GSM)",
  @"iPad3,6":  @"iPad 4(GSM+CDMA)",

  @"iPod1,1":  @"iPod 1st Gen",
  @"iPod2,1":  @"iPod 2nd Gen",
  @"iPod3,1":  @"iPod 3rd Gen",
  @"iPod4,1":  @"iPod 4th Gen",
  @"iPod5,1":  @"iPod 5th Gen",

  };
NSString *deviceName = commonNamesDictionary[machineName]; // <-- here is the issue
if (deviceName == nil) {
    deviceName = machineName;
}
return deviceName;

}
@end

还有其他人遇到过这个问题吗？

预先感谢您对此的帮助。

Answer 1

这个问题非常简单……但是，我花了一些时间才弄明白。希望这对以后遇到此问题的其他人有所帮助。出于某种原因，当我导入 Sys/utsname.h 时，它指的是 IOS5 的副本而不是 IOS7 的副本，我只需要删除导入关闭 xcode 并重新声明导入(不确定是否是这样)诀窍，但这些是我必须遵循的步骤才能最终奏效)。你怎么能检查它的点是否在右边，只需“命令 + 单击”，它就会带你到引用的地方。

我借此机会更新了所有已推出的新设备。

@{
  @"i386":     @"iPhone Simulator",
  @"x86_64":   @"iPad Simulator",

  //IPHONE
  @"iPhone1,1":    @"iPhone",
  @"iPhone1,2":    @"iPhone 3G",
  @"iPhone2,1":    @"iPhone 3GS",
  @"iPhone3,1":    @"iPhone 4",
  @"iPhone4,1":    @"iPhone 4S",
  @"iPhone5,1":    @"iPhone 5(GSM)",
  @"iPhone5,2":    @"iPhone 5(GSM+CDMA)",
  @"iPhone5,3":    @"iPhone 5c(GSM)",
  @"iPhone5,4":    @"iPhone 5c(Global)",
  @"iPhone6,1":    @"iPhone 5s(GSM)",
  @"iPhone6,2":    @"iPhone 5s(Global)",

  //IPAD
  @"iPad1,1":  @"iPad",
  @"iPad2,1":  @"iPad 2(WiFi)",
  @"iPad2,2":  @"iPad 2(GSM)",
  @"iPad2,3":  @"iPad 2(CDMA)",
  @"iPad2,4":  @"iPad 2(WiFi Rev A)",
  @"iPad2,5":  @"iPad Mini(WiFi)",
  @"iPad2,6":  @"iPad Mini(GSM)",
  @"iPad2,7":  @"iPad Mini(GSM+CDMA)",
  @"iPad3,1":  @"iPad 3(WiFi)",
  @"iPad3,2":  @"iPad 3(GSM+CDMA)",
  @"iPad3,3":  @"iPad 3(GSM)",
  @"iPad3,4":  @"iPad 4(WiFi)",
  @"iPad3,5":  @"iPad 4(GSM)",
  @"iPad3,6":  @"iPad 4(GSM+CDMA)",
  @"iPad4,1":  @"iPad Air(WiFi)",
  @"iPad4,2":  @"iPad Air(Cellular)",
  @"iPad4,4":  @"iPad Mini 2G(WiFi)",
  @"iPad4,5":  @"iPad Mini 2G(Cellular)",

  //IPOD
  @"iPod1,1":  @"iPod 1st Gen",
  @"iPod2,1":  @"iPod 2nd Gen",
  @"iPod3,1":  @"iPod 3rd Gen",
  @"iPod4,1":  @"iPod 4th Gen",
  @"iPod5,1":  @"iPod 5th Gen",

  };