使用程式判斷目前使用的機型是IPHONE還是IPAD
typedefenum {
#if __IPHONE_3_2 <= __IPHONE_OS_VERSION_MAX_ALLOWED
UIUserInterfaceIdiomPhone, // iPhone and iPod touch style UI
UIUserInterfaceIdiomPad, // iPad style UI
#endif
} UIUserInterfaceIdiom;
/* The UI_USER_INTERFACE_IDIOM() macro is provided for use when deploying to a version of the iOS less than 3.2. If the earliest version of iPhone/iOS that you will be deploying for is 3.2 or greater, you may use -[UIDevice userInterfaceIdiom] directly.
*/
#define UI_USER_INTERFACE_IDIOM() ([[UIDevice currentDevice] respondsToSelector:@selector(userInterfaceIdiom)] ? [[UIDevice currentDevice] userInterfaceIdiom] : UIUserInterfaceIdiomPhone)
UIDevice的property userInterfaceIdiom
The style of interface to use on the current device. (read-only)
@property (nonatomic, readonly) UIUserInterfaceIdiom userInterfaceIdiom
在AppDelegate裡,通過獲取UIDevice的userInterfaceIdiom屬性，可以檢測到當前程序是運行在iphone或者是ipad上，分別加載相應的視圖，就能在兩種設備中正常的運行起來。例子如下：
UIDevice* device=[UIDevice currentDevice];
window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
if (device.userInterfaceIdiom==UIUserInterfaceIdiomPhon e) {
IPhoneViewController* IPhoneViewController1=[[IPhoneViewController alloc]init];
window.rootViewController= IPhoneViewController1;
[IPhoneViewController1 release];
}
else if (device.userInterfaceIdiom==UIUserInterfaceIdiomPad)
{
IPadViewController* IPadViewController1=[[IPadViewController alloc]init];
window.rootViewController= IPadViewController1;
[IPadViewController1 release];
}
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