<< Chapter < Page Chapter >> Page >

Doesn't depend on user interaction

Even though the user clicked the Start button to cause the play method to be called on the Resize object in this case, the dispatching of the effectStart event is generally independent of user interaction and is triggered by a change of state within the program.

Could play the effect based on the time of day

For example, the play method could just as well have been called on the Resize object by another event handler that has determined that the time on the system clock has just struck midnight. In that case, the user could behome fast asleep and the effectStart event would still be dispatched.

Screen display after the effect has run to completion

The screen display in Figure 6 was captured after the user clicked the Resume button and allowed the effect to run to completion.

Screen display after the effect has run to completion.

Missing image
Screen display after the effect has run to completion.

Servicing an effectEnd event

The Resize object dispatches an effectEnd event when it finishes playing an effect. An event handler, registered on the Resize object, caused the text "Effect Ended!" to be displayed in the text area near the top of Figure 5.

Doesn't depend on user interaction

As before, the dispatching of the effectEnd event is generally independent of user interaction. Instead, it is triggered by a change ofstate within the program. In this case, at least ten seconds has elapsed since the user clicked the Start button to cause the effect to be played. Once again, the play method could just as well have been called on the Resize object by another event handler that has determined that the time on the system clock has struck midnight.

The MXML file

The MXML file used to launch this program as a Flex application is shown in Listing 14. The MXML code in Listing 14 simply instantiates an object ofthe Driver class file shown in the CustomClasses folder in Figure 2. From that point forward, the behavior of the program is entirelycontrolled by the ActionScript code that begins in Listing 4.

Event-driven aspects

This program may be interesting to you from two different perspectives. First, the event-driven aspects of the program illustrate the earlier discussionof the different types of events.

Some of the events that are serviced by the program, (such as click events on the buttons) , are dispatched as the direct result of user interaction. The remainder of the events, such as a creationComplete event, are dispatched independently of direct user interaction.

Correspondence between ActionScript and MXML code

The second interesting aspect of the program is that it illustrates that many things can be done using either Flex MXML code or ActionScript code.

The overall structure of this program is not identical to the structure of the program shown in the documentation . However, it is similar enough that you should be able to map the MXML code from the program in the documentation to the ActionScriptcode in this program and understand how the two relate to one another.

Will explain in fragments

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Object-oriented programming (oop) with actionscript. OpenStax CNX. Jun 04, 2010 Download for free at http://cnx.org/content/col11202/1.19
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Object-oriented programming (oop) with actionscript' conversation and receive update notifications?

Ask