C# Extension vs Swift Extension

C# Extesion

using System;

                    

public class Gun{

    public void fireDoubles(){

        fire(); // error: 'fire' does not exist in the current context

        

        this.fire(); // ok

        Console.WriteLine("fire2");

    }

}

public static class GunExtension{

    public static void fire( this Gun gun ){

        Console.WriteLine("fire");

    }

}

public class Program

{

    public static void Main()

    {

        var gun = new Gun();

        gun.fireDoubles();

    }

    

}

Swift Extesion

import Foundation

class Gun {

    func fireDoubles(){

        fire() // no error

        print("fire2")

    }

}

extension Gun {

    func fire(){

        print("fire")

    }

}

let g = Gun()

g.fireDoubles()

"The address entered appears to be invalid." in app Store Connect

When this error comes on in app store connect page, delete last hidden character in each address field.

Awake() not called when inactive gameobject

if a prefab is inactive, the prefab Awake() not called after instantiated.

 set gameobject active after instantiating it or set prefab active.

 but you can call your own method in inactive gameobject.
 Inactive Gameobject means that there is nothing in unity scene world. Unity API not called. Awake(), Start(), Update(), OnCollision() and so on...

using Random = UnityEngine.Random;

using Random = UnityEngine.Random;

UITableView: changing footer view's size programmatically doesn't work

myTable.tableFooterView = myFooterView; 

Re-assign your footer view to the table. The table will recognize it has a new footer and re-do whatever layout needs to occur for the proper size of the footer.

https://stackoverflow.com/questions/6672528/uitableview-changing-footer-views-size-programmatically-doesnt-work

Why do headers and footers follow movement of row when deleting it?

https://stackoverflow.com/questions/29942070/why-do-headers-and-footers-follow-movement-of-row-when-deleting-it

Simply return headerCell.contentView instead of headerCell and your problem will be resolved.

Dynamically Sized Table View Header or Footer Using Auto Layout

override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    // Dynamic sizing for the header view
    if let headerView = tableView.tableHeaderView {
        let height = headerView.systemLayoutSizeFittingSize(UILayoutFittingCompressedSize).height
        var headerFrame = headerView.frame

        // If we don't have this check, viewDidLayoutSubviews() will get
        // repeatedly, causing the app to hang.

        if height != headerFrame.size.height {
            headerFrame.size.height = height
            headerView.frame = headerFrame
            tableView.tableHeaderView = headerView
        }
    }
}

http://collindonnell.com/2015/09/29/dynamically-sized-table-view-header-or-footer-using-auto-layout/