How to avoid code duplication in two base classes inherited from UIViewController and UITableViewController?

Question

Objective-C

Essence of the question:
I have two base controllers:
1.BaseController inherited from UIViewController
2.TableBaseController inherited from UITableViewController
It so happened that these base controllers have methods that mirror each other
Example:
- (void)loadView;
- (void)viewDidLoad;
Now I'm puzzling over how to remove the duplication of logic and make the code beautiful.

Answer 1

Something is not clear. Do you want to make one load method for 2 different controllers? If so, then that's nonsense. Or I misunderstood you?
So for reference: there is also viewDidAppear, viewWillAppear, which, according to your logic, also almost repeat each other.

Answer 2

Was also confused with this issue. The easiest way is not to inherit from UITableViewController, but to make UITableView in a regular controller using xib. There won't be much difference.

Answer 3

You can simply create a category on the NavigationBar, adding full customization methods to it - adding a background, buttons, sliders, your own for each controller. Then in - (void)viewDidLoad you can simply call the method that customizes the NavigationBar for this controller.
The call will look something like this:

- (void)viewDidLoad {
[self.navigationController.navigationBar setBarForSmth];
}

The category itself will be the following:

@interface UINavigationBar (NavigationBar)
-(void)setBarForCard;
@end


@implementation UINavigationBar (NavigationBar)

- (void)setBarForSmth
{

    UIImageView *aTabBarBackground = ;
    aTabBarBackground.frame = CGRectMake(0,0,self.frame.size.width,44);
    [self sendSubviewToBack:aTabBarBackground];
//Ну и тут добавляеть контроллов по вкусу

You may often need to do this in viewWillAppear rather than viewDidLoad, so it won't be called when switching between controllers.