Help UI button why is it clicking many times

Why is this not working when I click the button it click many time ? please help someone

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

public class BUTTONBOOSTSCRIPT : MonoBehaviour {

public Button ClickBoost;
public int boostpower=0;

void OnGUI(){

ClickBoost.onClick.AddListener(CLICKBOOST);}

void CLICKBOOST(){

boostpower+=10;}
}

 

The problem is that you are adding the listener in OnGUI(). OnGUI() can be called multiple times per frame, resulting in the method being added multiple times. Also, you should not be used for anything with the new GUI system...at this point it is most suited for custom editor work only. If you absolutely need to add the listener via code something like this would be better:

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4. using UnityEngine.UI;
5.  
6. public class BUTTONBOOSTSCRIPT : MonoBehaviour
7. {
8.  
9.     public Button ClickBoost;
10.     public int boostpower=0;
11.  
12.     void Start()
13.     {
14.         ClickBoost.onClick.AddListener(CLICKBOOST);
15.     }
16.  
17.     void CLICKBOOST()
18.     {
19.         boostpower+=10;
20.     }
21. }
22.  

However, I highly recommended using the OnClick UnityEvent that is available in the inspector for the Button GameObject.

 

Great thanks a lot

 

Beat me to it there @TrickyHandz
That code was effectively adding a listener every frame and would likely cause one helluva memory leak.