kirupa | 12 May 2009
It's hard to create an app of any real substance these
days without creating hyperlinks that load a URL when the
user clicks on them. These could just be links that open a
new web page, launch your e-mail app for sending an e-mail,
or any other type of crazy thing you would want to do with
In this article, I will briefly show you how to use
ActionScript 3.0 (AS3) to create a hyperlink - similar to
the example you see below:
Click on the "Send E-Mail" or "Launch Web Page" link to
either see your e-mail application launch or your browser
taking you to the kirupa.com home page. Let's look at how
For handling all types of requests, you have the URLRequest
class. The following is a very simple example involving
URLRequest that, when run, will load the kirupa.com home
page for you:
There are only two parts to creating a hyperlink. The
first part is declaring and initializing your URLRequest
As part of your URLRequest constructor, you can specify
the link you would like to see opened. Once you your
referenced in this case by
homeLink, you are good to go. You simply have to
invoke the navigateToURL
method and pass in your URLRequest object as an argument:
The combination of the navigateToURL method and your
URLRequest object is all you really need to create a
hyperlink, and the next section will look into the above two
lines of code in the context of a more realistic
Now that I have sufficiently described the
basics of how to create a hyperlink, let's look at a
slightly more complicated example that probably will closely
mimic how you would actually use this code.
The following is the code I used in the example animation
you saw above:
Most of the code you see above should be very familiar to
you. I am simply setting up events and event handlers so
that when one of my buttons get clicked, something happens.
What is different is the following line:
Notice that the navigateToURL method I showed you earlier
takes in another argument besides the URLRequest object. It
takes the window target as an argument. In this case, my
argument is _self. The range of target values you can
the link in the current page or the current page
in a Frame. This is the default selection used by Flash
to open any link.
the link in a separate browser window. You selected
_blank in the tutorial above.
the link into the frameset file of a frame. The frameset
file controls all the frames, and setting the window to
_parent will eliminate frames in the subsequent links.
As you may have seen, often times, links get loaded
inside frames unintentionally. Setting _parent will
solve the misuse of frames!
link on the top frame.
If you have a
page containing frames, you can specify the name of your
frame as well. This will allow you to load pages in
This was a
nice, short article, but hopefully it gave you most of the
information you would ever need when it comes to using
hyperlinks in code.
If you have a question about this or any other topic, the easiest thing is to drop by our forums where a bunch of the friendliest people you'll ever run into will be happy to help you out!
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