问题描述
所以我有以下层次结构:
So I have the following hierarchy:
UINavigationController --> RootViewController (UIViewController) --> UITableViewController --> DetailViewController (UIViewController)
UINavigationController --> RootViewController (UIViewController) --> UITableViewController --> DetailViewController (UIViewController)
我想将 RootViewController 上的方向锁定为仅纵向，但保留其余视图控制器的所有方向.
I want to lock the orientation on RootViewController to Portrait only, but leave all orientations for the rest view controllers.
如果我把它放到子类 UINavigationController:
If I put this to subclassed UINavigationController:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
-(NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskPortrait;
}
然后所有视图控制器都被锁定为纵向.
All view controllers are then locked to portrait.
我的问题是，有没有办法只将 RootViewController 锁定为 Portrait，而将所有选项留给其他视图控制器?
My question is, is there a way to lock only RootViewController to Portrait, but leave all options for other view controllers?
推荐答案
查看此处的链接以修复 iOS 6 中的自动旋转并根据视图设置方向支持:http://www.disalvotech.com/blog/app-development/iphone/ios-6-rotation-solution/
check the link here for fixing autorotation in iOS 6 and set orientation support per view basis: http://www.disalvotech.com/blog/app-development/iphone/ios-6-rotation-solution/
你可以这样做:
在您的 .m 文件中创建一个自定义导航控制器，它是
UINavigationController的子类:
- (BOOL)shouldAutorotate
{
return self.topViewController.shouldAutorotate;
}
- (NSUInteger)supportedInterfaceOrientations
{
return self.topViewController.supportedInterfaceOrientations;
}
在你的 AppDelegate.h,
@interface AppDelegate : UIResponder <UIApplicationDelegate> {
UINavigationController *navigationController;
ViewController *viewController;
}
@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) ViewController *viewController;
在AppDelegate.m中，
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// set initial view
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
viewController = [[ViewController alloc] initWithNibName:@"RootViewController" bundle:nil];
navigationController = [[CustomNavigationController alloc]
initWithRootViewController:viewController]; // iOS 6 autorotation fix
[navigationController setNavigationBarHidden:YES animated:NO];
self.window = [[UIWindow alloc]
initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window setRootViewController:navigationController]; // iOS 6 autorotation fix
//[self.window addSubview:navigationController.view];
[self.window makeKeyAndVisible];
return YES;
}
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window // iOS 6 autorotation fix
{
return UIInterfaceOrientationMaskAll;
}
在您的 rootViewController 中，无论事件推送第二个视图控制器，请执行以下操作:
in your rootViewController, for whatever the event push the second view controller, do this:
- (IBAction)pushSecondViewController:(id)sender {
// push second view controller
SecondViewController *secondViewController = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
[self.navigationController pushViewController:secondViewController animated:YES];
}
在每个视图控制器中，添加
in your each view controller, add
- (BOOL)shouldAutorotate{}
- (NSUInteger)supportedInterfaceOrientations{}
对于 iOS 6，您可以单独设置每个视图控制器所需的方向支持.
for iOS 6, you can set each view controller whatever the orientation support you want individually.
对于iOS 5及以下，可以设置
for iOS 5 and below, you can set
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation{}
所有功劳归于在链接中编写示例应用的 John DiSalvo.
All the credits goes to John DiSalvo who wrote the sample app in the link.
希望这会有所帮助.
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