在iOS 8上,我对导航栏和方向更改有一个奇怪的行为.
我有一个导航控制器,报告支持的界面方向UIInterfaceOrientationMaskLandscapeRight.导航栏具有预期的横向高度(遗憾的是我无权发布屏幕截图).
然后我启动一个仅支持的视图控制器的模态演示UIInterfaceOrientationMaskPortrait.当演示动画开始时,似乎底层导航控制器的度量被改变为纵向呈现,因为导航栏的高度增长到其肖像大小,如上所述.
iOS 7不会出现此行为.我错过了什么?我想恢复旧的行为.
以下是上述简单示例的完整代码:
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
DOGButtonViewController *root = [DOGButtonViewController new];
DOGOrientedNavigationController *navi = [[DOGOrientedNavigationController alloc] initWithRootViewController:root];
navi.allowedInterfaceOrientations = UIInterfaceOrientationMaskLandscapeRight;
self.window.rootViewController = navi;
[self.window makeKeyAndVisible];
return YES;
}
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
return UIInterfaceOrientationMaskLandscapeRight | UIInterfaceOrientationMaskPortrait;
}
@end
@implementation DOGOrientedNavigationController
- (NSUInteger)supportedInterfaceOrientations
{
return self.allowedInterfaceOrientations;
}
@end
@implementation DOGButtonViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = @"Button View Controller"; …Run Code Online (Sandbox Code Playgroud) uiviewcontroller uinavigationcontroller presentviewcontroller ios8