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Question by -Rix- · Aug 15, 2014 at 09:17 PM · iosspriteloadhdd

How to load a sprite via WWW on IOS?

 Texture 2D temp = new Texture2D(0,0);
 WWW www = new WWW(pathtofile); //"pathtofile" references to a .png file.
 yield return www;
 temp = www.texture;
 sprite = Sprite.Create(temp, new Rect(0,0,temp.width, temp.height), new Vector2(0.5f,0.5f));
 
 

Why this code works on OS X, but it doesn't on IOS? When i try to load this sprite on OS X - it seems ok, but on IOS i see a small question mark. Could someone explain me - why?

And this on the other hand works on IOS but is awfully slow:

 byte[] imgdata = System.IO.File.ReadAllBytes(pathtofile);
 temp.LoadImage(imgdata);
 sprite = Sprite.Create(temp, new Rect(0,0,temp.width, temp.height), new Vector2(0.5f,0.5f));


Btw - if i am correct the core of the problem is the texture format - but I have no idea how to work around that. I've also tried www.LoadImageIntoTexture(temp) but to no avail.

I have also noticed that the code to load sprite via WWW returns ARGB32 format, but on IOS its RGB24 and the sprite doesn't show. What can I do with this?

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avatar image smoggach · Aug 15, 2014 at 09:26 PM 0
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The best way I've found is to use WWW.textureNonReadable.

I think maybe part of the problem is you're creating an unnecessary Texture2D with no size first. You can create the sprite directly from WWW.textureNonReadable.

$$anonymous$$y best guess is there's something wrong with your path. In my game I put all the .png in the Strea$$anonymous$$gAssets folder and use this for the path:

 WWW www = new WWW(System.Uri.EscapeUriString("file://" + System.IO.Path.Combine(Application.strea$$anonymous$$gAssetsPath, file)));

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Answer by -Rix- · Aug 16, 2014 at 09:00 AM

Okay, I've found out, that my problem was indeed path. I've copied my old code and for IOS i had a different path - cuz for System.IO.File u dont need "file://" and for "www" u do need it, so to summarise: I've added "file://" at the start, and everything is ok. I just didnt thought it might be the problem, cuz there were no exceptions, and i didnt catch any nulls from the function output.

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avatar image UnityForiOS · Dec 21, 2016 at 07:35 AM 0
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when i remove the metal API ,my image will not all show ,why?

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