ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with the file system
Because the Event.COMPLETE event is added to each individual FileReference object in the array, Flash Player calls the
completeHandler() method when each individual file finishes uploading.
Using the AIR file system API
Adobe AIR 1.0 and later
The Adobe AIR file system API includes the following classes:
File
FileMode
FileStream
The file system API lets you do the following (and more):
Copy, create, delete, and move files and directories
Get information about files and directories
Read and write files
AIR file basics
Adobe AIR 1.0 and later
For a quick explanation and code examples of working with the file system in AIR, see the following quick start articles
on the Adobe Developer Connection:
Building a text-file editor (Flash)
Building a text-file editor (Flex)
Building a directory search application (Flex)
Reading and writing from an XML preferences file (Flex)
Compressing files and data (Flex)
Adobe AIR provides classes that you can use to access, create, and manage both files and folders. These classes,
contained in the flash.filesystem package, are used as follows:
File classes Description
File File object represents a path to a file or directory. You use a file object to create a pointer to a file or
folder, initiating interaction with the file or folder.
FileMode The FileMode class defines string constants used in the fileMode parameter of the open() and
openAsync() methods of the FileStream class. The fileMode parameter of these methods determines
the capabilities available to the FileStream object once the file is opened, which include writing, reading,
appending, and updating.
FileStream FileStream object is used to open files for reading and writing. Once you’ve created a File object that
points to a new or existing file, you pass that pointer to the FileStream object so that you can open it and
read or write data.
Some methods in the File class have both synchronous and asynchronous versions:
File.copyTo() and File.copyToAsync()
Last updated 6/6/2012
666