iOS 视频横屏

最近开始做和视频类相关的项目，实现在UINavigationController中UIViewController的视频横竖屏需求，下面是我的代码。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    
    PLMediaMasterViewController *homeViewController = [[PLMediaMasterViewController alloc] init];
    self.navController = [[CunstomNavViewController alloc] initWithRootViewController:homeViewController];
    
    self.window.rootViewController = self.navController;
    [self.window makeKeyAndVisible];
    
    return YES;
}


#import "CunstomNavViewController.h"//导航控制器
 //支持旋转
 -(BOOL)shouldAutorotate{
     
     return [self.topViewController shouldAutorotate];
     
}

 //支持的方向
 - (UIInterfaceOrientationMask)supportedInterfaceOrientations {
     
     return [self.topViewController supportedInterfaceOrientations];
}

********************************************
#import "PLMediaMasterViewController.h"//竖屏页面
//支持旋转
-(BOOL)shouldAutorotate{

    return YES;
    
}

//支持的方向
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
    
    return UIInterfaceOrientationMaskPortrait;
      
}

- (IBAction)longhuZhibo:(UIButton *)sender {
    //点击进入横屏页面
    PLMediaChiefViewController *controller = [[PLMediaChiefViewController alloc] init];
    //self.navController，这个应该是一个全局的对象
    [self.navController presentViewController:controller animated:YES completion:^{
        
    }];
    
}
****************************************
#import "PLMediaChiefViewController.h"//横屏页面
**注意的事项，横屏页面Windows的frame会发生变化，自己的view不会变化，在横屏中如果需要设置UI的frame需要放到viewWillAppear中
因为进入VC中首先执行viewDidLoad方法，然后执行支supportedInterfaceOrientations 和shouldAutorotate方法，最后执行viewWillAppear方法，
只有执行完supportedInterfaceOrientations之后，Windows的frame才会发生变化。
//支持旋转
-(BOOL)shouldAutorotate{
    
    return YES;
    
}


//支持的方向
- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
    
    if (横屏) {
        
        return UIInterfaceOrientationMaskLandscapeRight;
        
    }else{
        
        return UIInterfaceOrientationMaskPortrait;
    }
    
}

//一开始的方向  很重要

-(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
    
    if (横屏) {
        
        return UIInterfaceOrientationLandscapeRight;
        
    }else{
        
        return UIInterfaceOrientationPortrait;
    }
    
}

**如有好想法，留言沟通