iOS13适配总结

1.原来的设置tabBarTitle选中及未选中状态的颜色代码失效

使用新代码

if (@available(iOS 13.0, *)) {
         UITabBarAppearance *appearance = UITabBarAppearance.new;
        NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init];
        UITabBarItemStateAppearance *normal = appearance.stackedLayoutAppearance.normal;
        UITabBarItemStateAppearance *selected = appearance.stackedLayoutAppearance.selected;
            if (normal) {
                normal.titleTextAttributes = @{NSForegroundColorAttributeName:k_TabbrTextColor,NSParagraphStyleAttributeName : paragraphStyle};
            }
            if (selected) {
            selected.titleTextAttributes = @{NSForegroundColorAttributeName:k_TabbrSelectedTextColor,NSParagraphStyleAttributeName : paragraphStyle};
            }
            self.tabBar.standardAppearance = appearance;
        }

2.原本设置cell的accessoryType
self.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
如果你不准备适配暗夜模式，只将cell的背景色统一设置，UITableViewCellAccessoryDisclosureIndicator同样会将箭头图片的颜色进行修改，导致和cell背景色颜色相近。
解决办法是使用accessoryView属性，
self.accessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"icon_arrowright_gray"]];