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POAdobe AIR and different OS filesystems
 

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  1. POAdobe AIR and different OS filesystems
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    <p>Another Adobe Air question for you but first here some background into the project I have been tasked with. It is an AIR app that will read assets from a USB key and must work on both WIN and MacOS. The problem is, how do I load assets into the app on MacOS! Sounds simple enough and works seamlessly on Windows.</p> <p>Here is a code snippet of what i am trying to do:</p> <pre><code> var loader:Loader = new Loader(); loader.contentLoaderInfo.addEventListener(Event.COMPLETE, ok); loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError); var p:String; if (os == "mac") { p = "/Volumes/" + keyVolume.rootDirectory.name + File.separator + "0a0ff0ff-f7ae-4b9c-9637-843b1d6c80e8.jpg"; } else { p = keyVolume.rootDirectory.name + File.separator + "0a0ff0ff-f7ae-4b9c-9637-843b1d6c80e8.jpg"; } var temp:File = new File(p); Debugger.Display.text += "\nAttempting to load: " + p; Debugger.Display.text += "\nDoes it exist? " + temp.exists; loader.load(new URLRequest(p)); </code></pre> <p>... the variable OS and keyVolume are being successfully set in earlier code. Also, I have the event listener callbacks defined as well for ok() and ioErro().</p> <p>When this is run it prints out on windows:</p> <p>Attempting to load: G:\0a0ff0ff-f7ae-4b9c-9637-843b1d6c80e8.jpg<br> Does it exist: true</p> <p>... and then successfully loads the asset.</p> <p>On MacOS, it prints out:</p> <p>Attempting to load: /Volumes/AC/0a0ff0ff-f7ae-4b9c-9637-843b1d6c80e8.jpg<br> Does it exist: true</p> <p>... and then fails with an IOError every time.</p> <p>Can anyone see something that I am missing here? Do I have some sort of permission error or something (file has "read / write" access). The USB key is formatted in MS-DOS FAT32, could that be a problem?</p> <p><strong>EDIT</strong></p> <p>I formatted a new USB key in MacOS to FAT16 and put the files onto it with no success. Problems remain.</p> <p><strong>EDIT</strong></p> <p>I am now just trying to load an asset from /users/-USERNAME-/Desktop and still am receiving the same error, so it looks like it isn't a permissions issue on just the USB stick, it is more widespread than that.</p> <p><strong>EDIT</strong></p> <p>PROBLEM SOLVED! I finally worded my Google search correctly and it <a href="http://forums.adobe.com/thread/701762?tstart=0" rel="nofollow">revealed the answer</a>.</p> <p>These changes will fix the problem:</p> <pre><code> var loader:Loader = new Loader(); loader.contentLoaderInfo.addEventListener(Event.COMPLETE, ok); loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError); var p:String = keyVolume.rootDirectory.nativePath + ((os == "mac") ? File.separator : "") + "0a0ff0ff-f7ae-4b9c-9637-843b1d6c80e8.jpg"; var temp:File = new File(p); Debugger.Display.text += "\nAttempting to load: " + temp.url; Debugger.Display.text += "\nDoes it exist? " + temp.exists; loader.load(new URLRequest(temp.url)); </code></pre> <p>I have also refined the logical statement involving the OS detection a bit as well.</p> <p>I hope someone finds this useful!</p>
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    1. COFAT32 should be totally fine. Do you have more info on the IOError?
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    2. COWhat's the "AC" difference in the paths ?
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    3. COThe "AC" in MacOS is the drive name. It does not factor into the windows path as it uses drive letters.
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