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Question by papacharis · May 09, 2017 at 05:21 AM · uiprefabbuttononclicklistener

Weird behaviour when trying to dynamically create buttons

Hello, I am facing a weird behavior when I am trying to dynamically add a "prefab" in my UI. To be more specific, I have created a prefab with some texts, some images and a button. Alse I have a List nameList. I am trying to dynamically create/add this prefab in my UI as many times as list's size.

 for(int i = 0; i<nameList.Count; i++)
 {
      GameObject go = Instantiate(myPrefab) as GameObject;
      go.transform.SetParent(myContainer);
      name.text = nameList[i];
      myInteger.text = i + " ";

       int tempInteger = i; //  so the myInteger.text and the button MUST have the same integer assigned!!! 
       Button tempButton = go.GetComponentInChildren<Button>();
       tempButton.onClick.AddListener(() => myFunc(tempInteger));
 }
 
 public void myFunc(int tempInteger)
 {
        Debug.Log(tempInteger);
 }

So, the gameobjects are creating and everything looks fine but when I click on the button the integer that has been assigned to it is wrong!

Also the LAST element from the list appears FIRST and the rest in the "propper position". So I have something like this:

  • [UI, Console]

  • 5( myInteger.text), "0" (from the Debug.Log on myFunc )

  • 0( myInteger.text), "1" (from the Debug.Log on myFunc )

  • 1( myInteger.text), "2" (from the Debug.Log on myFunc )

  • 2( myInteger.text), "3" (from the Debug.Log on myFunc )

  • 3( myInteger.text), "4" (from the Debug.Log on myFunc )

  • 4( myInteger.text), "5" (from the Debug.Log on myFunc )

Any ideas?

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