Objective c iphone sdk initWithNibName被多次调用

我试图通过指定视图控制器的名称来动态加载它们，但问题是initWithNibName方法被调用了两次，所以我不能依赖它来进行初始化。这是一个深夜，所以我可能只是错过了一些东西。下面是我用来加载控制器的代码，也许你会在这里发现错误：

/*
 Loads a view from a nib file. The parameter of this method is a nib name 
 withoug an extension (eg. MyView). A controller for the view must exist
 with the same name + "Controller" (eg. MyViewController)
 */
+(UIViewController *)loadViewFromNib:(NSString *)nibName
{
    // Try to create an object by class name
    // We need this so that the controller-specific overriden methods could be called
    Class ctrlClass = NSClassFromString([nibName stringByAppendingString:@"Controller"]);
    NSObject *customctrl = [ctrlClass new];
    UIViewController *ctrl = (UIViewController *)customctrl;
    // Init the controller
    [ctrl initWithNibName:nibName bundle:nil];
    [[ctrl view] setHidden:NO];
    [ctrl autorelease];
    return ctrl;
}

谢谢你的想法

是的，是的

这就是你的问题：

NSObject *customctrl = [ctrlClass new];
UIViewController *ctrl = (UIViewController *)customctrl;
[ctrl initWithNibName:nibName bundle:nil];

+new

是

alloc

/

init

的同义词

-[UIViewController init]

仅调用

-initWithNibName:bundle:

，并将

nil

作为两个参数。你自己也这么说

换句话说，您要初始化对象两次，这是一个很大的禁忌。以下是您想要的：

UIViewController *ctrl = [[ctrlClass alloc] initWithNibName:nibName bundle:nil];

---

如果删除

[ctrl-initWithNibName:nibName bundle:nil]它到底调用了一次还是两次？很抱歉耽搁了。你完全正确，我甚至不知道“新”关键字的这种行为。谢谢！