UINavigationController错误地调整包含视图的大小和错误位置

Question

这是一个说明问题的片段。当手机处于横向状态时，按钮的顶角不可见。怎么会？这是一个持续发生在我身上的问题。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    UIViewAutoresizing ar = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;

    window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    [window makeKeyAndVisible];
    window.rootViewController = self; //The delegate is a controller

    UIViewController* vc = [[UIViewController new] autorelease];

    nc =  [[UINavigationController alloc] initWithRootViewController:vc];
    CGRect r = self.view.frame;
    r.origin = CGPointZero;
    nc.view.frame = r;
    [self.view addSubview:nc.view];

    nc.view.autoresizingMask = ar;

    UIView* b = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    r.size = vc.view.frame.size;
    b.frame = r;
    b.autoresizingMask = ar;
    [vc.view addSubview:b];
    return YES;
}

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return YES;
}

感谢。

Answer 1

我今天也遇到了这样的问题 - 尝试将调整大小掩码设置为所有可用的标志：

UIViewAutoresizingFlexibleHeight |
UIViewAutoresizingFlexibleWidth |
UIViewAutoresizingFlexibleRightMargin |
UIViewAutoresizingFlexibleBottomMargin |
UIViewAutoresizingFlexibleTopMargin |
UIViewAutoresizingFlexibleLeftMargin ;