How to add the appearance of sprites and buttons on the stage?

Question

C++ / C#

Hello!
How to add a sprite with buttons and options inside Unity 2D when clicking on a button? I'm learning C#, but I have no idea how to do it.
Thank you!

Answer 1

OnMouseDown(){someGO.setActive(true);}

Answer 2

You hang a button in the Canvas , then either subscribe the required method to the click event in the inspector, or do it through a script:

using UnityEngine;
using UnityEngine.UI;

public class Example : MonoBehaviour
{
    public Button button;

    private void Start()
    {
        button.onClick.AddListener(OnClick);
    }

    private void OnClick()
    {
        Debug.Log("Click");
    }
}