UIInterfaceOrientation over iOS6 (应用旋转屏幕)

 
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typedef NS_ENUM(NSInteger, UIInterfaceOrientation) {
    UIInterfaceOrientationUnknown            = UIDeviceOrientationUnknown,
    UIInterfaceOrientationPortrait           = UIDeviceOrientationPortrait,
    UIInterfaceOrientationPortraitUpsideDown = UIDeviceOrientationPortraitUpsideDown,
    UIInterfaceOrientationLandscapeLeft      = UIDeviceOrientationLandscapeRight,
    UIInterfaceOrientationLandscapeRight     = UIDeviceOrientationLandscapeLeft
};
UIInterfaceOrientation enum 
使App支持旋转
有两种方法:
1.选择Project->Target->General->Deployment Info->Device Orientation,勾选需要支持的屏幕方向,比如
     Portrait
     Upside Down
     Landscape Left
     Landscape Right
2.在AppDelegate.m文件中,添加方法
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    return UIInterfaceOrientationMaskPortrait|UIInterfaceOrientationMaskLandscape;
}
以上面中的设置为例
启动画面的方向取决于方法一,启动画面之后的Window方向取决于方法二,如果未实现方法二,则取决于方法一
 
大部分页面为Portrait,个别页面为Landscape
例如AppDelegate中的window的rootViewController为TabBarController,则TabBarController的ViewControllers的旋转方向都取决于TabBarController,因此需要在TabBarController中实现以下方法
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#import "TYSXTabBarController.h"

#define kTabBarColor [UIColor colorWithRed:0.953f green:0.953f blue:0.953f alpha:1.00f]
#define kTintColor [UIColor colorWithRed:0.914f green:0.000f blue:0.294f alpha:1.00f]

@implementation TYSXTabBarController

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.tabBar.translucent = NO;
    [self.tabBar setBarTintColor:kTabBarColor];
    self.tabBar.tintColor = kTintColor;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

- (BOOL)shouldAutorotate
{
    return YES;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationPortrait;
}
@end
TabBarController.m

这样,TabBarController下的所有页面就都只能是竖向了。

如何让某个页面只能是横向的呢?

以全屏播放页面(FullScreenViewController)为例,Present显示该页面,如此,播放页面就与TabBarController独立开了,在FullScreenViewController.m中实现以下方法

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@implementation FullScreenViewController

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return UIInterfaceOrientationIsLandscape(toInterfaceOrientation);
}

@end
FullScreenViewController.m

 

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