Xcode13踩坑，iOS15适配

1.升级完Xcode13之后遇到滚动tableView到底部时tabbar颜色会变化。

解决方法如下：

if (@available(iOS 15.0, *)) {
        UINavigationBarAppearance * bar = [UINavigationBarAppearance new];
        bar.backgroundColor = Color_Main_Black;
        bar.titleTextAttributes = @{NSFontAttributeName:Font(18),
                                    NSForegroundColorAttributeName:Color_White
        };
        bar.backgroundEffect = nil;
        self.navigationController.navigationBar.scrollEdgeAppearance = bar;
        self.navigationController.navigationBar.standardAppearance = bar;
        
        
        UITabBarAppearance * bar2 = [UITabBarAppearance new];
        bar2.backgroundColor = Color_Main_Black;
        bar2.backgroundEffect = nil;
        self.tabBarController.tabBar.scrollEdgeAppearance = bar2;
        self.tabBarController.tabBar.standardAppearance = bar2;
        
    } else {
        // Fallback on earlier versions
    }

2.Encountered an error communicating with IBAgent-iOS.

解决方案如下：
重启清理Xcode缓存，重启Xcode。（如果依然存在，那就重启清理完重启下电脑。）