如何在iOS中检查iPhone设备版本？
嗨，我想在iOS中检查iPhone设备版本。
我的意思是，目前运行的设备是iPhone 4或iPhone 5。
我需要检查设备，是iPhone 5还是不是？
因为我的应用程序需要知道iPhone 5的问题。
那我该怎么办？
添加以下代码：
if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone){ if ([[UIScreen mainScreen] respondsToSelector: @selector(scale)]) { CGSize result = [[UIScreen mainScreen] bounds].size; CGFloat scale = [UIScreen mainScreen].scale; result = CGSizeMake(result.width * scale, result.height * scale); if(result.height == 960) { NSLog(@"iPhone 4 Resolution"); resolution_number = 1; } if(result.height == 1136) { NSLog(@"iPhone 5 Resolution"); } } else{ NSLog(@"Standard Resolution"); } } 将这个macros添加到你的代码中：
#define HEIGHT_IPHONE_5 568 #define IS_IPHONE ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) #define IS_IPHONE_5 ([[UIScreen mainScreen] bounds ].size.height == HEIGHT_IPHONE_5 )
那么只要你需要检查
if (IS_IPHONE_5) { //Code for iPhone5 }else{ //Code for earlier version }
基于这个问题的答案，你可以确定你正在使用的模型：
NSString *deviceModel = [UIDevice currentDevice].model;
结果可以是其中的一个值：iPod touch，iPhone，iPad，iPhone模拟器，iPad模拟器
对于特定的模型，您正在使用的版本可以通过在UIDevice.h类上创build一个类来确定：
的UIDevice + Utilities.h
#import <UIKit/UIKit.h> @interface UIDevice (Utilities) - (CGFloat)deviceModelVersion; @end
的UIDevice + Utilities.m
#import "UIDevice+Utilities.h" #include <sys/types.h> #include <sys/sysctl.h> @implementation UIDevice (Utilities) - (CGFloat)deviceModelVersion { size_t size; sysctlbyname("hw.machine", NULL, &size, NULL, 0); char *machine = malloc(size); sysctlbyname("hw.machine", machine, &size, NULL, 0); NSString *platform = [NSString stringWithUTF8String:machine]; free(machine); if ([platform rangeOfString:@"iPhone"].location != NSNotFound) { return [[[platform stringByReplacingOccurrencesOfString:@"iPhone" withString:@""] stringByReplacingOccurrencesOfString:@"," withString:@"."] floatValue]; } else if ([platform rangeOfString:@"iPad"].location != NSNotFound) { return [[[platform stringByReplacingOccurrencesOfString:@"iPad" withString:@""] stringByReplacingOccurrencesOfString:@"," withString:@"."] floatValue]; } else if ([platform rangeOfString:@"iPod"].location != NSNotFound) { return [[[platform stringByReplacingOccurrencesOfString:@"iPod" withString:@""] stringByReplacingOccurrencesOfString:@"," withString:@"."] floatValue]; } else if ([platform rangeOfString:@"i386"].location != NSNotFound || [platform rangeOfString:@"x86_64"].location != NSNotFound) { return -1.0; //Currently it is not possible (or maybe it is, but I do not know) //which type of simulator device model version your app is running //so I am returning -1.0 device model version for all simulators types } return 0.0; } @end
示例如何调用函数deviceModelVersion ：
CGFloat deviceModelVersion = [UIDevice currentDevice].deviceModelVersion;
可能的结果可以是1.0,1.1，…，2.0,2.1，…，3.0,3.1，…，4.0,4.1，…，5.0,5.1，…
要确定是否是iPhone 5，你会有
deviceModel : "iPhone"
和
deviceModelVersion : >=5.0 and < 6.0
我实际上find了一个#define这个技巧
#define IS_IPHONE_5 (fabs((double)[[UIScreen mainScreen] bounds].size.height - (double) 568) < DBL_EPSILON)
#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) #define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) #define IS_IPHONE_4 (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 480.0f) #define IS_IPHONE_5 (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 568.0f) #define IS_IPHONE_6 (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 667.0f) #define IS_IPHONE_6PLUS (IS_IPHONE && [[UIScreen mainScreen] nativeScale] == 3.0f) #define IS_IPHONE_6_PLUS (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 736.0f) #define IS_RETINA ([[UIScreen mainScreen] scale] == 2.0f)