Flex: New Project Settings

When starting a new Flex project there are a few settings I like to use by default.

Changes to Flex Compiler
Flex Compiler options for a project can be found by right-clicking the project and selecting properties. Select Flex Compiler from the menu on the left. The following properties should be added to the Additional compiler arguments field.

When you're reading local xml files or image you might run into a sandbox security Error# 2140 or ReferenceError Error# 1069 using the HTTPService object. Use this switch to stop the error.
-use-network=false


The loading background color of a Flex app can be changed. Use this switch to change the property.
-default-background-color [HTML COLOR VALUE]
I typically use #FFFFFF.


Changes to the Application
I like to use a simple background for Flex apps. Add this property to the mx:Application to make the background white.
styleName="plain"

Flex: Multiple Application MXML files

At a point in a project I'm currently working on we had to intergrate with another application. That means creating a new Application MXML file and degrading the current Application MXML file. Creating the new Applicaion was simple, but Flex was confused as to which file it should use to launch the project. This can be updated in the project properties.

1) Right-click the project and goto Properties

2) Goto the "Flex Applications". There you will see all the files that are marked as Applications.

3) Select the new Applicaion file and click "Set as Default". When you click "Run" or "Debug" it will use this file to launch your project.

4) Click on the old Applicaion file and click "Remove". This won't delete the file.

Hope this makes transitioning to a new project easier.

Also remember to remove any styleName properties from your old Application tag.