iOS 全屏播放網頁視頻退出后狀態欄被隱藏

使用wkWebView播放網頁上的視頻，播放完成后，退出視頻返回到網頁發現app的狀態整個被隱藏了，解決方法，監聽狀態欄隱藏通知，在適當的時候讓狀態欄顯示出來

    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(windowDidBecomeHidden:) name:UIWindowDidBecomeHiddenNotification object:nil];

-(void)windowDidBecomeHidden:(NSNotification *)noti{
    
    UIWindow * win = (UIWindow *)noti.object;
    
    if(win){
        
        UIViewController *rootVC = win.rootViewController;
        
        NSArray<__kindof UIViewController *> *vcs = rootVC.childViewControllers;
        
        if([vcs.firstObject isKindOfClass:NSClassFromString(@"AVPlayerViewController")]){
            
            [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];
        }
    }
}