Macromedia flash mx 2004-learning flash User Manual

Summary

121

9.

Define private methods in the class that use the existing movie clip methods, 

startDrag()

 and 

stopDrag()

:

class Drag extends MovieClip
  {
function Drag()
 {

onPress=doDrag; 
onRelease=doDrop;

}
private function doDrag():Void 
{
this.startDrag();
}
private function doDrop():Void 
{

this.stopDrag()

}
}

10.

Save the ActionScript file.

11.

Test the Shape.fla document. You should be able to drag the movie clip. 

Note: An example of the ActionScript file you just created, named Drag.as, is located in your finished 
files folder. For the path, see 

.

Summary

Congratulations on learning how to work with objects and classes in ActionScript 2.0. In a few 
minutes, you learned how to accomplish the following tasks:

•

Create and use objects from existing classes 

•

Create a custom class 

•

Create a property within a custom class

•

Create a method within a custom class

•

Extend an existing class and take advantage of inheritance