When it's safe to get rectTransform.position?

I get wrong values if I call it on Awake or on Start if I don't wait a reasonable time (Example: 1 second):

Code (CSharp):

1. IEnumerator Start() {
2.             Debug.Log("Start (0) - Position: " + rectTransform.position);
3.  
4.             yield return null;
5.  
6.             Debug.Log("Start (1) - Position: " + rectTransform.position);
7.  
8.             yield return new WaitForSeconds(1f);
9.  
10.             Debug.Log("Start (2) - Position: " + rectTransform.position);
11. }

It's there an approach to know where it's safe to get correct values?

 

Best time to get the values is during LateUpdate, once Unity has finished all it's background processing with the UI

 

Yes but I mean If I want to store this value once. That's why I'm using Start.

 

N3uRo:

Hi, how about this ?

 

Yup, doing

Code (CSharp):

1. yield return new WaitForEndOfFrame ();

In a Coroutine in start will do it as you are simply waiting for the first frame to finish and LateUpdate being called before inspecting it.
but not in Awake!

 

Thanks but it should be documented that you can't access rectTransform properties (it's not reliable) on Awake or Start without waiting to the first frame.

 

Either that, or implement a LateStart() hook for us to manage. :/

I posted a suggestion idea here.

 

Thanks for confirming that it's a bug. In the meantime, what are the recommended workarounds, if any?