禁用在 iPad Pro 中不起作用的单个 UIViewController 上的自动旋转

Question

我想在 iPhone 和 iPad 中锁定单个视图控制器。 下面的代码在 iPhone 4、5、6 iPad、iPad 2、iPad Retina 中完美运行。 但不适用于 iPad pro。

@implementation UINavigationController (Orientation)
-(NSUInteger)supportedInterfaceOrientations
{
        return [self.topViewController supportedInterfaceOrientations];
}

-(BOOL)shouldAutorotate
{
    return YES;
}
@end

上面的代码写在我不想旋转的视图控制器中。

Answer 1

在视图控制器中编写下面的代码，您希望在纵向模式下锁定哪个视图控制器

@implementation UINavigationController (Orientation)
-(NSUInteger)supportedInterfaceOrientations
{
        return [self.topViewController supportedInterfaceOrientations];
}

-(BOOL)shouldAutorotate
{
    return YES;
}
@end

#pragma mark Orientation
-(BOOL)shouldAutorotate
{
    [super shouldAutorotate];
    return NO;
}
-(NSUInteger) supportedInterfaceOrientations {
    [super 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 {
    [super 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;
}

现在在您的 plist 文件中执行以下更改

Answer 2

把它写在你不想旋转的视图控制器中

这将防止任何旋转。

你不想旋转的视图控制器类应该有这个。

- (BOOL)shouldAutorotate
{
    return NO;
}

The containing navigation controller class should have this.

- (BOOL)shouldAutorotate
{
    return [self.topViewController shouldAutoRotate];
}

这只会旋转到纵向

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}