Archive for the 'AIR' Category

Select and access local SWF files within an AIR application

Published on June 17, 2008 in AIR, Flash and Flex. 1 Comment

Well, it took me a little time to figure out how to select and load a local SWF file into an SWFLoader instance. Several times I got this error message:

“SecurityError: Error #3015: Loader.loadBytes() is not permitted to load content with executable code.”

After some research I found this "dreaming in flash" blog entry which basically contains the solution I was looking for.

But then it took me a little more time to figure out how to use this with the SWFLoader. So here is a basic code example:

PLAIN TEXT
Actionscript:
  1. import flash.display.Loader;
  2. import flash.filesystem.File;
  3. import flash.filesystem.FileMode;
  4. import flash.filesystem.FileStream;
  5. import flash.system.LoaderContext;
  6. import flash.utils.ByteArray;
  7. import mx.controls.SWFLoader;
  8.  
  9. // File reference
  10. var swfFile: File;
  11.  
  12. // Open the SWF file
  13. var fileStream: FileStream = new FileStream();
  14.     fileStream.open( swfFile, FileMode.READ );
  15.  
  16. // Read SWF bytes into byte array and close file
  17. var swfBytes: ByteArray = new ByteArray();
  18.     fileStream.readBytes( swfBytes );
  19.     fileStream.close();
  20.  
  21. // Prepare the loader context to avoid security error
  22. var loaderContext: LoaderContext = new LoaderContext();
  23.     loaderContext.allowLoadBytesCodeExecution = true; // that's it!
  24.    
  25. // Now you could use this with a Loader instance
  26. var loader: Loader = new Loader();
  27.     loader.loadBytes( swfBytes, loaderContext );
  28.    
  29. // Or you could use this with a SWFLoader instance
  30. var swfLoader: SWFLoader = new SWFLoader();
  31.     swfLoader.loaderContext = loaderContext;
  32.     swfLoader.source = swfBytes;

Adobe technology platform RIA guide

Published on March 20, 2008 in AIR, Documentations, Flash, Flex, Librarys and Links. 0 Comments

This is simply the link list contained in the recently released Adobe technology platform ActionScript Reference PDF.

API References

Documentation

Developer Centers

Downloads

Miscellaneous Resources

Mailing Lists

Forums

Write with AIR applications to the application resource directory

Published on March 12, 2008 in AIR. 1 Comment

AIR applications are not permitted to write to the application resource directory. This seems to be a security feature and makes sense, because some systems would not allow to write into this directory at system level.

But for testing purposes you might hack this by using a single line of code:

PLAIN TEXT
Actionscript:
  1. // Writing into that file would fail
  2. var yourFileInAppDir: File = File.applicationDirectory.resolvePath( "yourFile.xml" );
  3. // This is the simple hack:
  4. yourFileInAppDir = new File( yourFileInAppDir.nativePath );

But this only avoids a AIR security error! You must be sure to have write access to the directory!