UI.Graphic.CrossFadeAlpha only works for decrementing values ?

Try this! I'm not sure if it's good coding, but at least it works to me.

 image.canvasRenderer.SetAlpha( 0.0f );
 image.CrossFadeAlpha( 1.0f, duration, false );

Found out the answer, can't have the initial alpha value at 0, you have to set this to 1. It works fine then.

So make sure the image you want to fade in, has an alpha of 1.

Hi guys i had this problem too after some testing i can say that it does work for me but not as expected.

What i did as a test for fading in was to set CrossFadeAlpha() "duration" parameter to more extreme values, i choose 1000 and it faded fine.

`_myImage.CrossFadeAlpha( 255 , 1000 , false ) ;`

So i set it like this : _myImage.CrossFadeAlpha( 0 , 1 , false ) ;

Hope it Helps :)

I'm having the same problem with fading in (incrementing the alpha), but none of the workarounds did the job for me. So I wrote a Coroutine for the fading, which works for UI Text:

 IEnumerator FadeText(Text text, float target, float duration) {
         float totalChange = target - text.color.a;
         float changePerSecond = totalChange / duration;
         float totalTime = 0;

         while (totalTime < duration) {
             totalTime += Time.deltaTime;
             float increment = Time.deltaTime * changePerSecond;
             text.color = new Color(text.color.r, text.color.g, text.color.b, text.color.a + increment);
 
             yield return new WaitForEndOfFrame(); 
         }
 
         text.color = new Color(text.color.r, text.color.g, text.color.b, target);
 
         yield break;
     }

And It is called as StartCoroutine(FadeText(textObjectName, 0.25f, 0.5f));. It could also be extended for other Graphics. Not extensively tested, but working for my cases.

Hope this can be useful, and any comments on improving it will be very appreciated.

CrossFadeAlpha() not working with Image.color !!! It is working with

"the alpha of the CanvasRenderer color associated with this Graphic".