Modifying Rect Transform values by Script

Unity Engine
1

Hi.

I´m having some problems with the new UI because i´m creating an element that is previous saved as prefab.

My code is the next:

  GameObject newRoom = (GameObject)GameObject.Instantiate(room, room.transform.position, room.transform.rotation);
  
newRoom.transform.SetParent(roomsPanel.transform);

room is my prefab (GameObject) and the original have a Rect Transform component with the next values:

But the new element dynamically created have this other:

I tried this:

RectTransform rc = newRoom.GetComponent<RectTransform> ();
    rc = room.GetComponent<RectTransform> ();

But is not work, the values are the same.

I tried modifying the sizeDelta and the anchored position and works, but only with manual values for a specific screen size, if i use for example (-429.1f, -55.5f); for 800x480 screen and after when the same values open the game in a 1024x768 screen, the element was in other position :S

This only works if in the inspector I copy the component values and paste it in the new element, but this is not automatically and i need do it by script.

I need your help.

Thank You!

2

I went around with this a lot today and in final analysis I could not get the scaling working reliably when done under script control. Using the .SetParent() method is definitely necessary, or so it seems from what that method does, but I still could not get code-generated and/or code-manipulated UGUI stuff working right scale-wise.

My google-fu is exhausted. Can someone from Unity please post some short snippets of code that create fully-functional UI objects in a blank scene? And please can you do so without using the word ‘Prefab’ anywhere in your explanation.

3

It seems the problem is that the scale of the parent transform must be 1,1,1. And it is not.

4

Thanks, finally works, the problem was the Scale but not of the parent, i fix it modifying the scale to 1 before apply the sizeDelta and works perfect!:

newRoom.transform.SetParent(roomsPanel.transform);
newRoom.GetComponent<RectTransform> ().localScale = new Vector3 (1, 1, 1);
        newRoom.GetComponent<RectTransform>().sizeDelta = new Vector2(-35f, 0.5f);
        newRoom.GetComponent<RectTransform>().anchoredPosition = new Vector2(-16.6f, -160.0f*roomId);

Thank you very much!

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