Question

我发布了一个问题here。其中一位好友回复并给出了解决方案。虽然解决方案是在少数视图控制器上工作，但在视图上它不起作用。当我进入一个具有TabController +导航控制器的视图控制器时，该选项卡栏项目，代码不起作用。并且视图可以旋转。

我使用iOS 6.1的以下代码

//For iOS6
- (BOOL)shouldAutorotate {
    return NO;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationPortrait;
}
- (NSUInteger)supportedInterfaceOrientations {
   return UIInterfaceOrientationMaskPortrait;
}

我也必须在iOS 7中实现相同的功能。请帮忙

Answer 1

shouldAutorotate, supportedInterfaceOrientations, preferredInterfaceOrientationForPresentation

如果viewcontroller位于tabbarcontroller的任何navigationcontroller内，则不会调用上述方法。如果在tabbarcontroller或导航控制器中声明了这些方法，那么它们将被调用。

要解决此问题，请创建一个类FixedOrientationTab，它是UITabBarController的子类，以及一个导航类OrientationEnabledNavigation，它是UINavigationController的子类。然后在shouldAutorotate, supportedInterfaceOrientations, preferredInterfaceOrientationForPresentation和FixedOrientationTab内实施了OrientationEnabledNavigation个方法。

<强> OrientationEnabledNavigation.h

#import <UIKit/UIKit.h>

@interface OrientationEnabledNavigation : UINavigationController

@end

<强> OrientationEnabledNavigation.m

#import "OrientationEnabledNavigation.h"

@interface OrientationEnabledNavigation ()

@end

@implementation OrientationEnabledNavigation

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

- (BOOL)shouldAutorotate
{
    return [self.topViewController shouldAutorotate];
//    return NO;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return [self.topViewController supportedInterfaceOrientations];
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [self.topViewController preferredInterfaceOrientationForPresentation];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

<强> FixedOrientationTab.h

#import <UIKit/UIKit.h>

@interface FixedOrientationTab : UITabBarController

@end

<强> FixedOrientationTab.m

#import "FixedOrientationTab.h"

@interface FixedOrientationTab ()

@end

@implementation FixedOrientationTab

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

- (BOOL)shouldAutorotate
{
    return [self.selectedViewController shouldAutorotate];
    //    return NO;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return [self.selectedViewController supportedInterfaceOrientations];
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return [self.selectedViewController preferredInterfaceOrientationForPresentation];
}


- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

然后，如果您想在项目中使用导航控制器，请使用OrientationEnabledNavigation和tabbar FixedOrientationTab。之后，如果您在shouldAutorotate, supportedInterfaceOrientations, preferredInterfaceOrientationForPresentation中实施viewcontroller这些方法，则会调用它们。

希望这会有所帮助.. :)

修改正如Jeev指出的另一种方法是添加一些代码开头的代码：

UITabBarController

@implementation UITabBarController (AutoRotationForwarding) -(BOOL)shouldAutorotate { if ([self.selectedViewController respondsToSelector:@selector(shouldAutorotate)]) { return [self.selectedViewController shouldAutorotate]; } else { return YES; } } - (NSUInteger)supportedInterfaceOrientations { if ([self.selectedViewController respondsToSelector:@selector(supportedInterfaceOrientations)]) { return [self.selectedViewController supportedInterfaceOrientations]; } else { return UIInterfaceOrientationMaskAll; } } @end

UINavigationController

@implementation UINavigationController (AutoRotationForwarding) -(BOOL)shouldAutorotate { if ([self.topViewController respondsToSelector:@selector(shouldAutorotate)]) { return [self.topViewController shouldAutorotate]; } else { return YES; } } -(NSUInteger) supportedInterfaceOrientations { if([self.topViewController respondsToSelector:@selector(supportedInterfaceOrientations)]) { return [self.topViewController supportedInterfaceOrientations]; } return UIInterfaceOrientationMaskPortrait; } @end

Answer 2

我有UINavigationController包含UIViewController。

您应该通过子类UINavigationController在UINavigationController中禁用rotate并实现

- (BOOL)shouldAutorotate
{
return YES;
}

- (NSUInteger)supportedInterfaceOrientations
{
// return some
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
// return some thing that you want
}

希望这会对你有所帮助。

Answer 3

由于我使用TabBarController，我得到的唯一可行解决方案是创建一个类别。

所以只需制作一个类别

这是类别的.h类，我将其命名为AutoRotationtab

#import <UIKit/UIKit.h>
#import "AppDelegate.h"

@interface UITabBarController (AutoRotationTab)

@end

这是类别的.m类

#import "UITabBarController+AutoRotationTab.h"

@implementation UITabBarController (AutoRotationTab)

-(BOOL)shouldAutorotate
{
if(globalvariable_shouldRotate)
{
    return YES;
}
else
{
    return NO;
}
}


- (NSUInteger)supportedInterfaceOrientations
{

if(globalvariable_shouldRotate)
{
    return UIInterfaceOrientationMaskAll;
}
else
{
    return UIInterfaceOrientationMaskPortrait;
}
}

只需制作此类别，并查看魔术，它的作品

无法停止设备旋转

3 个答案: