iOS横竖屏 Appdelegate设置

除个别控制器外，全局页面竖屏显示

#pragma mark - 屏幕旋转相关
//获取Window当前显示的ViewController
- (UIViewController *)currentViewController {
    //获得当前活动窗口的根视图
    UIViewController* vc = [UIApplication sharedApplication].keyWindow.rootViewController;
    while (1)
    {
        //根据不同的页面切换方式，逐步取得最上层的viewController
        if ([vc isKindOfClass:[UITabBarController class]]) {
            vc = ((UITabBarController*)vc).selectedViewController;
        }
        if ([vc isKindOfClass:[UINavigationController class]]) {
            vc = ((UINavigationController*)vc).visibleViewController;
        }
        if (vc.presentedViewController) {
            vc = vc.presentedViewController;
        }else{
            break;
        }
    }
    return vc;
}

//- (BOOL)shouldAutorotate
//{
//    return YES;
//}

#pragma mark - InterfaceOrientation //应用支持的方向
- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
   
    if ([[[self currentViewController] class] isEqual:NSClassFromString(@"PlayerViewController")]) {
        PlayerViewController *vc = (PlayerViewController *)[self currentViewController];
        if (!vc.isHalfScreen) {
            return UIInterfaceOrientationMaskLandscape;
        }
    }
    return UIInterfaceOrientationMaskPortrait;
}