Read object from file in flex

I write object in a file. first i convert the object to bitmap data then i 开发者_StackOverflowwrite it in a file. Now I want to read object from the file so that it returns the original object. How can i do this?

Probably it will help if you give more information about how you're writing the file. Adobe's BitmapData documentation has an example of loading a GIF file then accessing its bitmap data. However, Loader also supports JPG, PNG, and SWF files.