web页面中的视频横竖屏

import "ViewController.h"

import "AppDelegate.h"

@interface ViewController (){
AppDelegate *app;
}

@end

@implementation ViewController

• (void)dealloc{
  [[NSNotificationCenter defaultCenter] removeObserver:self name:UIWindowDidBecomeHiddenNotification object:nil];
  [[NSNotificationCenter defaultCenter] removeObserver:self name:UIWindowDidBecomeVisibleNotification object:nil];
  }

-(void)playerWillExitFullscreen:(id)sender{
NSLog(@"退出播放视频了");
app.isFull=NO;

/**
 下边方法的使用场景:
 如果点击视频,自动旋转为横屏播放状态,点击完成按钮,需要是程序变为竖屏状态,需要下边的代码
 */
UIViewController *vc = [[UIViewController alloc]init];
[self presentViewController:vc animated:NO completion:nil];
[vc dismissViewControllerAnimated:NO completion:nil];

}
-(void)playerWillShowFullScreen:(id)sender{
NSLog(@"播放视频了");
app.isFull=YES;
}

• (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.

  self.title=@"webView";
  CGRect rect=self.view.frame;
  // rect.size.height-=64;
  UIWebView *webView=[[UIWebView alloc] initWithFrame:rect];
  webView.delegate=self;
  [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.tudou.com/albumplay/O8GDpd7v8RA/qTfiUJAEdm0.html"]]];
  [self.view addSubview:webView];

  app=(AppDelegate *)[UIApplication sharedApplication].delegate;
  }

• (void)didReceiveMemoryWarning {
  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.
  }

• (void)webViewDidFinishLoad:(UIWebView *)webView{

//通知写在这里是因为网页加载完成但是没有播放视频,也会调用playerWillExitFullscreen方法

[[NSNotificationCenter defaultCenter] removeObserver:self name:UIWindowDidBecomeHiddenNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIWindowDidBecomeVisibleNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerWillExitFullscreen:) name:UIWindowDidBecomeHiddenNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerWillShowFullScreen:) name:UIWindowDidBecomeVisibleNotification object:nil];

}