ios开发中各种版本、设备的区分

设备类型的区分-iphone ,ipad-itouch.....

可以从 UIDevice 的属性 model 得到在现在执行的环境。例子如下：

 

[cpp] view plaincopyprint?



NSString *modelname = [[UIDevice currentDevice]model];  

if ([modelname isEqualToString:@"iPhone"]) {  

  // iPhone  

}  

if ([modelname isEqualToString:@"IPod Touch"]) {  

  // iPod touch  

}  

if ([modelname isEqualToString:@"iPhone Simulator"]) {  

  // iPhone Simulator  

}  



也可以通过宏定义区分

 

 

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#if TARGET_OS_IPHONE  

    // iPhone Device  

#endif  

  

#if TARGET_IPHONE_SIMULATOR  

    // iPhone Simulator  

#endif  

  

#if !TARGET_IPHONE_SIMULATOR  

    // iPhone Device  

#endif  

ios设备版本的区分-iphone3gs,iphone4....

ios提供了几种c函数来获得相应信息如下

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struct utsname u;  

uname(&u); ///-----get device struct info  

NSString *machine = [NSString stringWithCString:u.machine];  

  

  

if ([machine isEqualToString:@"iPhone1,1"]) {  

  // iPhone 1G  

}  

if ([machine isEqualToString:@"iPhone1,2"]) {  

  // iPhone 3G  

}  

if ([machine isEqualToString:@"iPhone2,1"]) {  

  // iPhone 3GS  

}  

if ([machine isEqualToString:@"iPod1,1"]) {  

  // iPod touch 1G  

}  

if ([machine isEqualToString:@"iPod2,1"]) {  

  // iPod touch 2G  

}  

if ([machine isEqualToString:@"iPod3,1"]) {  

  // iPod touch Late2009  

}  



或者

[cpp] view plaincopyprint?



- (NSString *) platform  

{  

  size_t size;  

  sysctlbyname("hw.machine", NULL, &size, NULL, 0);  

  char *machine = malloc(size);  

  sysctlbyname("hw.machine", machine, &size, NULL, 0);///-----get device struct info  

  

    

  NSString *platform = [NSString stringWithCString:machine];  

  

  free(machine);  

  return platform;  

}