Can unity read file in iOS folder?

Question

hi all, I am trying read file in iOS folder but it failed.

in xcode , i let my ipad to download file and save it

like this

//download in xcode

-(void)connectionDidFinishLoading:(NSURLConnection *)connection {

 NSArray *pathLis = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);   
 NSString *path = [pathLis objectAtIndex:0];
  
 path = [path stringByAppendingPathComponent: @"aaa.unity3D"];
 
 if([tempData writeToFile:path atomically:NO])
 {
     NSLog(@"YES"); 
 }
 else
 {
     NSLog(@"NO");
 }
 NSLog(@"save as %@", path);
 //[tempData release];
 //tempData = nil;

}

this works fine , download is ok , saving file is ok,too. but when i want to load the file in unity. it failed.

in unity i try this command

Resources.LoadAssetAtPath( Application.persistentDataPath+"/aaa.unity3D");

or WWW bundle = new WWW(file://+Application.persistentDataPath+"/aaa.unity3D"); etc..

i try any path i find in web

and i sure the path is right.

because this works great in uinty

FileStream fs = new FileStream(Application.persistentDataPath+"/aaa.unity3D", FileMode.Open, FileAccess.Read);

why?

the FileStream is byte[]

i don't know how to change to prefab or other type i wnat to use in unity.

C# "filestream" can read the file in iOS

but "Resources.LoadAssetAtPath" fail

and the path is 100% same

Anyone know about this?

or how can i change byte[] to unity object?

Sorry for my bad english~

Answer 1

Answer by Graham-Dunnett · Apr 11, 2012 at 10:35 AM

Resources.LoadAssetAtPath is documented as being useful in the Editor only, and the path name you give the API is a path name into the Assets folder in the Unity project.

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kyopolo · Apr 12, 2012 at 02:13 AM 0

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So , i can't use Resourcesload to read file in iOS folder . but what about the WWW? it fails ,too. is that the same reason like resourcesload? WWW useful in Editor only?

Is there other way to read iOS folder by using unity? because i don't know how to change byte[] to unity prefab or unity gameobject.

Thanks to answer me~

rutter · Apr 12, 2012 at 02:26 AM 0

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What file are you trying to load? Is it an asset bundle that you've created with the Unity editor previously? If so, WWW.assetBundle should work if you have things set up right. Are you getting any particular error messages?

kyopolo · Apr 12, 2012 at 02:31 AM 0

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yes , the file is assetbundle , or even jpg.

I try WWW but it is not work , error log is null , i also check the progress, but it always "0". I don't know what is wrong. And i am sure the path is right. because filestream is work by use the same path.

by the way , if i use WWW to link the webpath , the log says "badpath" . So i download the file by using xcode , and save file in the ios snadbox folder. then i use WWW to the path like this "WWW(file://+Application.persistentDataPath+"/aaa.unity3D");"

Answer 2

Answer by kyopolo · Apr 12, 2012 at 07:33 AM

oops , the web part is my fault , it is because the assetbundel's problem. but that question is still , when i download the file in ipad. i use WWW to read the localfile , the WWW.isdone == true; but when i want to Instantiate it , it shows the log "Failed to load asset bundlel" the file is the same in my website. Anyone know about this?

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Can unity read file in iOS folder?

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