userInterfaceIdiom总是指示iPhone

我将下面的代码添加到AppDelegate中：

if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) { self.viewController = [[ViewController alloc] initWithNibName:@"ViewController_iPhone" bundle:nil]; NSLog(@"iPhone found"); } else { self.viewController = [[ViewController alloc] initWithNibName:@"ViewController_iPad" bundle:nil]; NSLog(@"iPad found"); } 

在iPad 2上运行时，userInterfaceIdiom始终等于UIUserInterfaceIdiomPhone。我的iPad 2在iOS 6.1.3上运行。

我找不出什么问题。

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提前致谢！

Answer 1

目标设备应该是通用的 ，

Answer 2

用这个

 #define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) if (!IS_IPAD) { self.viewController = [[ViewController alloc] initWithNibName:@"ViewController_iPhone" bundle:nil]; NSLog(@"iPhone found"); } else { self.viewController = [[ViewController alloc] initWithNibName:@"ViewController_iPad" bundle:nil]; NSLog(@"iPad found"); }