UI_USER_INTERFACE_IDIOM() & UIDevice.model

使用 UI_USER_INTERFACE_IDIOM() 进行区分
(ios 3.2 >=) 无法区分iphone和ipod



if (UI_USER_INTERFACE_IDIOM()
== UIUserInterfaceIdiomPad) {

// <define your constants here>

} else {

// <define your constants here>

}



区分目前UI_USER_INTERFACE_IDIOM()有2个返回值

UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad


UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone



使用 UIDevice.model 进行区分
(ios 2.0 >=)



NSString *deviceType = [UIDevice currentDevice].model;



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

//iPhone

}

else if([deviceType isEqualToString:@"iPod
touch"]) {

//iPod Touch

}

else {

//iPad

}



使用系统的一个函数sysctlbyname 来获取设备名称

- (NSString *) platformString

{

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 isEqualToString:@"iPhone1,1"]) return @"iPhone
1G";

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

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

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

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

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:@"iPad1,1"]) return @"iPad";

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

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

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

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

return @"";

}