RIA Shanghai | Adobe上海用户组

In Flex, you never need two different sources to build your application in browser and in AIR. For example:

  <![CDATA[
    import flash.utils.getDefinitionByName;
    import flash.filesystem.File;
    import com.insprise.common.SystemUtils;

  public function init() {
    mylabel.text = "User dir: " + (SystemUtils.isAirEnvironment() ? getUserDir() : "");
  }

  public static function getUserDir():String {
    return File.userDirectory.toString();
  }
  ]]>

  

The above code will run perfect in both Browser and AIR. One rule to remember:

No AIR-only property/function should be executed when in browser. It’s OK that your class imports AIR-only classes as long as AIR-only code is not executed.