userInterfaceIdiom始终指示iPhone

Question

我将以下代码添加到AppDelegate：

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。

我无法找出问题所在。

感谢任何帮助！

提前致谢！

Answer 1

目标设备应通用，

Answer 2

使用此

#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");
}