1、屏幕旋轉(zhuǎn)
使用有三個(gè)前提條件
1、根控制是UIViewController
2、根控制是UINavigationController
3、根控制是UITabBarController
注意：：不同的根控制器情況下，使用方式不同。
你還需要了解的
// Note that UIInterfaceOrientationLandscapeLeft is equal to UIDeviceOrientationLandscapeRight (and vice versa).
請(qǐng)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.
這是因?yàn)閷⒃O(shè)備向左旋轉(zhuǎn)需要將內(nèi)容向右旋轉(zhuǎn)
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, 則引發(fā)此異常。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
::直接在控制器中重寫下面的方法,設(shè)置是否支持自動(dòng)旋轉(zhuǎn),以及支持的方向即可
/** 是否允許自動(dòng)旋轉(zhuǎn) */
-(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
::在根控制器下面寫
-(BOOL)shouldAutorotate
{
if ([[self.viewControllers lastObject] isKindOfClass:["指定哪個(gè)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:["指定哪個(gè)控制器" class]]) {
return UIInterfaceOrientationMaskLandscapeRight;
}
return UIInterfaceOrientationMaskPortrait;
}
3、根控制是UITabBarController
::在根控制器下面寫
1、在此使用通知，需要先定義一個(gè)全局的BOOL
@interface CustomTabBarController : UITabBarController
{
BOOL _shouldAutorotate;
}
@end
2、在注冊(cè)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、重寫方法
/**
*
* @return 是否支持旋轉(zhuǎn)
*/
-(BOOL)shouldAutorotate
{
return _shouldAutorotate;
}
/**
* 適配旋轉(zhuǎn)的類型
*/
#if __IPHONE_OS_VERSION_MAX_ALLOWED < __IPHONE_9_0
- (NSUInteger)supportedInterfaceOrientations
#else
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
#endif
{
if (_shouldAutorotate) {
return UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeRight;
}
return UIInterfaceOrientationMaskPortrait;
}
@end
4、需要在哪個(gè)頁面進(jìn)行旋轉(zhuǎn)，則在那個(gè)頁面的需要發(fā)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的控制方法會(huì)出現(xiàn)當(dāng)前頁面有效，返回后的頁面就不受控制的問題。
2、狀態(tài)欄控制
需要特別注意::
info.plist文件中，View controller-based status bar appearance項(xiàng)設(shè)為YES，則View controller對(duì)status bar的設(shè)置優(yōu)先級(jí)高于application的設(shè)置。
View controller-based status bar appearance項(xiàng)設(shè)為NO，則以application的設(shè)置為準(zhǔn)，view controller的prefersStatusBarHidden方法無效，是根本不會(huì)被調(diào)用的。
使用場(chǎng)景為一個(gè)playerVC控制器，加載playerV的控制功能來使用，并且playerV的控制結(jié)果要提現(xiàn)在playerVC上面。
@interface PlayerViewController : BaseViewController
/** 是否隱藏狀態(tài)欄 */
- (void)whetherHidenStateBar:(BOOL)isHidenStateBar;
@end
@interface PlayerView : UIView
/** */
@property (nonatomic, weak) PlayerViewController *playerVC;
@end
// 在控制器中使用playerV的時(shí)候，傳遞playerVC給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，控制狀態(tài)欄的隱藏和顯示
- (BOOL)prefersStatusBarHidden
{
return self.isHidenStateBar;
}
- (void)whetherHidenStateBar:(BOOL)isHidenStateBar
{
self.isHidenStateBar = isHidenStateBar;
// 主動(dòng)調(diào)用也有效果
[self prefersStatusBarHidden];
// 橫屏的時(shí)候不寫這個(gè)會(huì)有點(diǎn)問題，測(cè)試的時(shí)候你也會(huì)發(fā)現(xiàn)
[UIApplication sharedApplication].statusBarHidden = isHidenStateBar;
}
// 在playerView中需要使用到的地方調(diào)用
[self.playerVC whetherHidenStateBar:YES];或者[self.playerVC whetherHidenStateBar:NO];
