在ios 10中禁用自动旋转不适用于特定视图

Question

我尝试在ipad应用中禁用特定视图的自动旋转（用户看到的第一个视图），在视图的.m文件中我使用了以下代码：< / p>

- (BOOL)shouldAutorotate {
    return NO;
}

- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
    // Return a bitmask of supported orientations. If you need more,
    // use bitwise or (see the commented return).
    return UIInterfaceOrientationMaskPortrait;
    // return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown;
}

- (UIInterfaceOrientation) preferredInterfaceOrientationForPresentation {
    // Return the orientation you'd prefer - this is what it launches to. The
    // user can still rotate. You don't have to implement this method, in which
    // case it launches in the current orientation
    return UIInterfaceOrientationPortrait;
}

然而，这似乎不起作用，因为视图仍然旋转到横向（见截图）

奇怪的是，上面的代码确实禁用了其他2个.xib视图的自动旋转。谁知道我做错了什么？

顺便说一下，这与应用程序提出的第一种观点有关，即：

我现在尝试使用下面的方法覆盖导航控制器方法，但仍然没有运气，视图仍在旋转！ - 任何想法？

@interface CustomNavigationController : UINavigationController

@end

@implementation CustomNavigationController

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return NO;
    // Return YES for supported orientations
    // return (interfaceOrientation != UIInterfaceOrientationMaskPortrait);
}

- (BOOL)shouldAutorotate {
    return NO;
}

- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
    // Return a bitmask of supported orientations. If you need more,
    // use bitwise or (see the commented return).
    return UIInterfaceOrientationMaskPortrait;
    // return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown;
}

- (UIInterfaceOrientation) preferredInterfaceOrientationForPresentation {
    // Return the orientation you'd prefer - this is what it launches to. The
    // user can still rotate. You don't have to implement this method, in which
    // case it launches in the current orientation
    return UIInterfaceOrientationPortrait;
}

@end