UIWebView播放视频强制横屏

iOS11 很好的支持了webView播放视频的横屏问题 下面是iOS11之前版本的处理

首先在AppDegelate中添加一个控制全屏的开关

@property (nonatomic,assign)BOOL isFull;

在 WebView所在的Controller 注册2个观察通知

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(begainFullScreen:) name:UIWindowDidBecomeVisibleNotification object:nil];//进入全屏

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(endFullScreen:) name:UIWindowDidBecomeHiddenNotification object:nil];//退出全屏

实现 通知方法

- (void)begainFullScreen:(NSNotification *)notification {// 开始播放
    
    [[UIApplication sharedApplication]setStatusBarHidden:YES];
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    appDelegate.isFull = YES;
}


- (void)endFullScreen:(NSNotification *)notification {// 开始播放
  
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    appDelegate.isFull = NO;
    }
}

现在只要进入webView进入全屏就可以开启横屏模式
但是从全屏返回并没进入竖屏所以我们需要进行强制竖屏归正

//强制归正：
    if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {
        SEL selector = NSSelectorFromString(@"setOrientation:");
        NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[UIDevice instanceMethodSignatureForSelector:selector]];
        [invocation setSelector:selector];
        [invocation setTarget:[UIDevice currentDevice]];
        int val =UIInterfaceOrientationPortrait;
        [invocation setArgument:&val atIndex:2];
        [invocation invoke];

最后添加显示状态栏

 [[UIApplication sharedApplication]setStatusBarHidden:NO];