Redundant conformance of TableView to protocol UITableViewDataSource with Xib Files

Question

I have a parent view UIViewController (on storyboard), a TableViewController with .xib and TableViewCell with .xib. I am trying to connect DataSource to the TableView howev

Answer 1

When a class inherits from UITableViewController, it by default conforms to UITableViewDataSource & UITableViewDelegate and you need not explicitly specify it.

You need to conform to UITableViewDataSource and UITableViewDelegate only when you embed a UITableView in a UIViewController.

Answer 2

There are at least 2 conformations in your class. You need to extend only once.

First Scenario:

You conform in the class description AND in the extension.

class MyViewController: MyDelegate{
    //class functions here
}

extension MyViewController: MyDelegate{
func1()
}

Remove "My Delegate" in the class description.

class MyViewController{
    //class functions here
}

extension MyViewController: MyDelegate{
func1()
}

Second Scenario:

You conform in two extensions.

extension MyViewController: MyDelegate{
func1()
}

extension MyViewController: MyDelegate{
func2()
}

Merge them into one extension like:

extension MyViewController: MyDelegate{
func1()
func2()
}