button UI event/functions

Clicking Buttons and having things happen.

So, you're able to drag objects and create UI events in the Inspector..but I think this type of scripting is perhaps a bit quicker/precise?

Code was lifted from the official Unity page.

Make 3 button UI objects and add this script to an empty gameobject/or anything.

 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class button_tut : MonoBehaviour
{

    public Button _firstButton, _secondButton, _thirdButton;
    //public Camera _cam;
    public GameObject _cube;
    // Start is called before the first frame update
    void Start()
    {
       //setup various listener function things on the "onclick", per button
        _firstButton.onClick.AddListener(TaskOnClick);
        _secondButton.onClick.AddListener(delegate { TaskWithParameters("Hello"); });
        _thirdButton.onClick.AddListener(()=>ButtonClicked(42));
        _thirdButton.onClick.AddListener(TaskOnClick);
    }


    void TaskOnClick()
    {
        Debug.Log("You've clicked a button!");
        _cube.transform.localEulerAngles += new Vector3(0, 19, 0);
    //here we print to the debug, as well as add a value to the _cube object's rotation.
//note that the third button is also calling this function, as well as the ButtonClicked function
    }



    void TaskWithParameters(string message)
    {

        Debug.Log(message);

    }
    

    void ButtonClicked(int buttonNo)
    {
        Debug.Log("Button clicked = " + buttonNo);
           }

}