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I will break this program down and explain it in fragments. Aside from the MXML file shown in Listing 14, the program consists of a single class named Driver . A complete listing of the Driver class file is provided in Listing 16 near the end of the lesson.

Beginning of the class named Driver

The Driver class begins in Listing 4. Note that this class extends the Panel class, causing this program to have the same overall appearance as the program provided in the documentation .

Beginning of driver class for effects03.

package CustomClasses{ import flash.events.MouseEvent;import mx.containers.ControlBar; import mx.containers.Panel;import mx.controls.Button; import mx.controls.Image;import mx.controls.TextArea; import mx.effects.Resize;import mx.events.EffectEvent; import mx.events.FlexEvent;public class Driver extends Panel{ //Instantiate and save references to all of the// objects required by the program. private var resize:Resize = new Resize();private var textOut:TextArea = new TextArea(); private var image:Image = new Image();private var bar:ControlBar = new ControlBar(); private var startButton:Button = new Button();private var pauseButton:Button = new Button(); private var resumeButton:Button = new Button();private var reverseButton:Button = new Button(); private var endButton:Button = new Button();private var resetButton:Button = new Button();

In addition to containing all of the required import directives, the code in Listing 4 instantiates and saves references to all of the objects required bythe program.

Beginning of the constructor for Effects03

The constructor begins in Listing 5.

Beginning of the constructor for effects03.

public function Driver(){//constructor this.title="Demonstration of the Resize effect.";this.percentWidth = 100; this.percentHeight = 100;this.addEventListener(FlexEvent.CREATION_COMPLETE,creationCompleteHandler);

The code in Listing 5 sets several properties on the Panel object, which is the object with the light gray background shown in Figure 4. The Panel object is displayed in the browser window, which has a slightly darker gray background color in Figure 4.

Register an event listener

The last statement in Listing 5 registers an event listener named creationCompleteHandler to service creationComplete events dispatched by the Panel object.

As you will see later, the event handler causes the text "Creation Complete!" to be displayed in a TextArea object near the top of the Panel in Figure 4 when the Panel object and all of its children have been constructed, initialized, and drawn.

Prepare the TextArea object and add it to the Panel

Listing 6 sets some properties and some styles on the TextArea object and adds it near the top of the Panel as shown in Figure 4.

Prepare the textarea object and add it to the panel.

textOut.percentWidth = 100;//percent textOut.height = 100;//pixelstextOut.setStyle("color","0x0000FF"); textOut.setStyle("fontSize",14);textOut.text = "Use the Buttons to control " + "the size of the image.";addChild(textOut);

Questions & Answers

are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Object-oriented programming (oop) with actionscript. OpenStax CNX. Jun 04, 2010 Download for free at http://cnx.org/content/col11202/1.19
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