ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with the file system
var temp:File = File.createTempDirectory();
The createTempDirectory() method automatically creates a unique temporary directory (saving you the work of
determining a new unique location).
You can use a temporary directory to temporarily store temporary files used for a session of the application. Note that
there is a createTempFile() method for creating new, unique temporary files in the System temporary directory.
You may want to delete the temporary directory before closing the application, as it is not automatically deleted on all
devices.
Enumerating directories
Adobe AIR 1.0 and later
You can use the getDirectoryListing() method or the getDirectoryListingAsync() method of a File object to
get an array of File objects pointing to files and subfolders in a directory.
For example, the following code lists the contents of the user's documents directory (without examining
subdirectories):
var directory:File = File.documentsDirectory;
var contents:Array = directory.getDirectoryListing();
for (var i:uint = 0; i < contents.length; i++)
{
trace(contents[i].name, contents[i].size);
}
When using the asynchronous version of the method, the directoryListing event object has a files property that
is the array of File objects pertaining to the directories:
var directory:File = File.documentsDirectory;
directory.getDirectoryListingAsync();
directory.addEventListener(FileListEvent.DIRECTORY_LISTING, dirListHandler);
function dirListHandler(event:FileListEvent):void
{
var contents:Array = event.files;
for (var i:uint = 0; i < contents.length; i++)
{
trace(contents[i].name, contents[i].size);
}
}
Copying and moving directories
Adobe AIR 1.0 and later
You can copy or move a directory, using the same methods as you would to copy or move a file. For example, the
following code copies a directory synchronously:
var sourceDir:File = File.documentsDirectory.resolvePath("AIR Test");
var resultDir:File = File.documentsDirectory.resolvePath("AIR Test Copy");
sourceDir.copyTo(resultDir);
Last updated 6/6/2012
682