iOS控制屏幕随意旋转和状态栏的控制

1、屏幕旋转

使用有三个前提条件
1、根控制是UIViewController
2、根控制是UINavigationController
3、根控制是UITabBarController
注意：：不同的根控制器情况下，使用方式不同。

你还需要了解的
// Note that UIInterfaceOrientationLandscapeLeft is equal to UIDeviceOrientationLandscapeRight (and vice versa).
请注意, UIInterfaceOrientationLandscapeLeft 等于 UIDeviceOrientationLandscapeRight (反之亦然)

// This is because rotating the device to the left requires rotating the content to the right.
这是因为将设备向左旋转需要将内容向右旋转
typedef NS_ENUM(NSInteger, UIInterfaceOrientation) {
    UIInterfaceOrientationUnknown            = UIDeviceOrientationUnknown,
    UIInterfaceOrientationPortrait           = UIDeviceOrientationPortrait,
    UIInterfaceOrientationPortraitUpsideDown = UIDeviceOrientationPortraitUpsideDown,
    UIInterfaceOrientationLandscapeLeft      = UIDeviceOrientationLandscapeRight,
    UIInterfaceOrientationLandscapeRight     = UIDeviceOrientationLandscapeLeft
} __TVOS_PROHIBITED;

/* This exception is raised if supportedInterfaceOrientations returns 0, or if preferredInterfaceOrientationForPresentation
   returns an orientation that is not supported.
如果 supportedInterfaceOrientations 返回 0, 则引发此异常。如果preferredInterfaceOrientationForPresentation返回不支持的方向
*/
UIKIT_EXTERN NSExceptionName const UIApplicationInvalidInterfaceOrientationException NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;

typedef NS_OPTIONS(NSUInteger, UIInterfaceOrientationMask) {
    UIInterfaceOrientationMaskPortrait = (1 << UIInterfaceOrientationPortrait),
    UIInterfaceOrientationMaskLandscapeLeft = (1 << UIInterfaceOrientationLandscapeLeft),
    UIInterfaceOrientationMaskLandscapeRight = (1 << UIInterfaceOrientationLandscapeRight),
    UIInterfaceOrientationMaskPortraitUpsideDown = (1 << UIInterfaceOrientationPortraitUpsideDown),
    UIInterfaceOrientationMaskLandscape = (UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight),
    UIInterfaceOrientationMaskAll = (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight | UIInterfaceOrientationMaskPortraitUpsideDown),
    UIInterfaceOrientationMaskAllButUpsideDown = (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight),
} __TVOS_PROHIBITED;

1、根控制是UIViewController

::直接在控制器中重写下面的方法,设置是否支持自动旋转,以及支持的方向即可

/** 是否允许自动旋转 */
-(BOOL)shouldAutorotate
{
    return NO;
}
/** 支持的方向 */
#if __IPHONE_OS_VERSION_MAX_ALLOWED < __IPHONE_9_0
- (NSUInteger)supportedInterfaceOrientations
#else
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
#endif
{
    return UIInterfaceOrientationMaskPortrait;
}

2、根控制是UINavigationController

::在根控制器下面写

-(BOOL)shouldAutorotate
{
    if ([[self.viewControllers lastObject] isKindOfClass:["指定哪个控制器" class]]) {
        return YES;
    }
    return NO;
}
#if __IPHONE_OS_VERSION_MAX_ALLOWED < __IPHONE_9_0
- (NSUInteger)supportedInterfaceOrientations
#else
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
#endif
{
    if ([[self.viewControllers lastObject]isKindOfClass:["指定哪个控制器" class]]) {
                return UIInterfaceOrientationMaskLandscapeRight;
            }
    return UIInterfaceOrientationMaskPortrait;
}

3、根控制是UITabBarController

::在根控制器下面写

1、在此使用通知，需要先定义一个全局的BOOL
@interface CustomTabBarController : UITabBarController
{
    BOOL _shouldAutorotate;
}
@end
2、在注册通知
@implementation CustomTabBarController

- (void)viewDidLoad {
    [super viewDidLoad];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(autorotateInterface:) name:@"InterfaceOrientationNotificationKey" object:nil];
}
- (void)autorotateInterface:(NSNotification *)notifition
{
    _shouldAutorotate = [notifition.object boolValue];
}
3、重写方法
/**
 *
 *  @return 是否支持旋转
 */
-(BOOL)shouldAutorotate
{
    return _shouldAutorotate;
}
/**
 *  适配旋转的类型
 */
#if __IPHONE_OS_VERSION_MAX_ALLOWED < __IPHONE_9_0
- (NSUInteger)supportedInterfaceOrientations
#else
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
#endif
{
    if (_shouldAutorotate) {
        return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeRight;
    }
    return UIInterfaceOrientationMaskPortrait;
}
@end
4、需要在哪个页面进行旋转，则在那个页面的需要发出通知
-(void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    [UserDefaultNotificationCenter postNotificationName:@"InterfaceOrientationNotificationKey" object:@"1"];
}
-(void)viewWillDisappear:(BOOL)animated
{
    [super viewDidDisappear:animated];

    [UserDefaultNotificationCenter postNotificationName:@"InterfaceOrientationNotificationKey" object:@"0"];
}

注意：：不同的根控制不能混用，如果你的根控制器是TabbarVC，使用了navVC的控制方法会出现当前页面有效，返回后的页面就不受控制的问题。

2、状态栏控制

需要特别注意::

info.plist文件中，View controller-based status bar appearance项设为YES，则View controller对status bar的设置优先级高于application的设置。
View controller-based status bar appearance项设为NO，则以application的设置为准，view controller的prefersStatusBarHidden方法无效，是根本不会被调用的。

使用场景为一个playerVC控制器，加载playerV的控制功能来使用，并且playerV的控制结果要提现在playerVC上面。

@interface PlayerViewController : BaseViewController
/** 是否隐藏状态栏 */
- (void)whetherHidenStateBar:(BOOL)isHidenStateBar;
@end
@interface PlayerView : UIView
/**  */
@property (nonatomic, weak) PlayerViewController  *playerVC;
@end

// 在控制器中使用playerV的时候，传递playerVC给PlayerView
- (void)setupPlayerView
{
    self.playerView = [[PlayerView alloc] init];
    self.playerView.playerVC = self;
    [self.view addSubView:self.playerView];
}
// 需要在控制器中才能使用，控制状态栏的隐藏和显示
- (BOOL)prefersStatusBarHidden
{
    return self.isHidenStateBar;
}
- (void)whetherHidenStateBar:(BOOL)isHidenStateBar
{
    self.isHidenStateBar  = isHidenStateBar;
    // 主动调用也有效果
    [self prefersStatusBarHidden];
    // 横屏的时候不写这个会有点问题，测试的时候你也会发现
    [UIApplication sharedApplication].statusBarHidden = isHidenStateBar;
}
// 在playerView中需要使用到的地方调用
[self.playerVC whetherHidenStateBar:YES];或者[self.playerVC whetherHidenStateBar:NO];