Adding functionality to thumbnails
Video: Adding functionality to thumbnailsOnce you have your buttons in place, you can begin to work on what happens when these buttons are selected, or when these thumbnails are select. So when you click on a Cafe buena thumbnail, I want to load that image into this large area, and then replace the text to down here. So I am going to jump into my portfolio.fla, and I am going to select that ActionScript, that first frame there, and I am going to go to Window and open up my Actions panel, and I am going to pin my code by pressing that button there.
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Flash and ActionScript are ideal for creating flexible, easily updatable web sites that are both unique in design and small in file size. In Creating a Portfolio Web Site Using Flash CS4 Professional, Adobe Certified Instructor Paul Trani shows how to exploit Flash to create a web site that showcases work to clients and prospective employers. Find out how to add dynamic navigation, animation, and video to a page, and how to load, sort and display XML that enables portfolio content to be updated without opening Flash. This course is designed to take your existing tweening skills and gotoAndPlay code and walk away with a fully functional Flash site. Exercise files accompany the course.
- Optimizing and publishing a Flash web site
- Designing a professional photo or video portfolio
- Adding button interactivity
- Adding functionality to portfolio thumbnails
- Displaying content with XML
- Adding audio to portfolio presentations
Adding functionality to thumbnails
Once you have your buttons in place, you can begin to work on what happens when these buttons are selected, or when these thumbnails are select. So when you click on a Cafe buena thumbnail, I want to load that image into this large area, and then replace the text to down here. So I am going to jump into my portfolio.fla, and I am going to select that ActionScript, that first frame there, and I am going to go to Window and open up my Actions panel, and I am going to pin my code by pressing that button there.
So here I have my code, which loads in that Thumbnail image for the basketball.jpg and the cafebuena.jpg. What I need to do is add another EventListener in here and I need to add an EventListener that listens for the click, But I need to do that once this thumbnail loader is created. So I actually need to make it right inside of this thumbloaded function.
So right in here, I'll just hit Return a couple of times, just before that closing curly brace, I need to add an EventListener. So thumbLoader.addEventListener. If it highlights for you, you can hit Enter and it will add it, keep you from typing that whole word there. You can type in MouseEvent, because I am going to listen for MouseEvent, specifically the CLICK method.
So when it's clicked on, it's going to fire off this function called LoadMainImage. There is my function call for LoadMainImage. Now I need to create that function, LoadMainImage and I am going to be loading this image multiple times. So I am going to need to do the same thing down here, so what I think I am going to call this is LoadMainImage1, because there is going to be multiple functions.
So, LoadMainImage1 event colon, MouseEvent is what it's expecting. So I need to make sure these two words match up, and this function is going to be void. Just so you know what void means, sometimes you'll have say an add function that passes out may be two numbers that were added together, so it might pass back out that number. Void means it's not going to pass any content, or any text, or any code outside of the function.
It's all just kind of happen inside of it. Open curly brace, close curly brace and within this LoadMainImage1, this is where I want to add code, just to do what I want it to, when this button is clicked. So I need to reference this large UILoader component. It's pretty large, so in my PROPERTIES panel, what I'll call it is largeUILoader. I just need to remember this instance name. In fact, I'll do a Command+C to copy it.
I am going to go back into my code, and paste largeUILoader that instance name. I am going to change its source= portfolio/large/basketball.jpg, just like that, semicolon at the end. Now I can go ahead and use this EventListener for thumbLoader2, so I am going to copy these four lines, the EventListener and also the function.
I am going to paste it down inside of this thumbLoaded2. So addEventListener, Mouse Click. It's going to give me an error if I don't change this function here, because I want to have a LoadMainImage2 function. So this is the call to this function, so I need to change it here as well. Then I want to load in a different image when this button is selected, and this is the cafebuena.jpg image, just like that.
Notice as you start to nest functions within functions, things get a little crazy. In fact, you could have things indented more than once, and it's not a big deal to have multiple spaces before or after Lines, but what you can always do is click this Auto Format button, right next to Check syntax button. If I click that button, it's going to line everything up accordingly. So everything looks cleaned up, it kind of formats everything nice and neat, and just makes it little easier to read, so now I know what's inside of this function, for instance.
I am going to go ahead and test this movie. All right. Everything looks as expected, but let me come down here and click on Cafe buena, and I don't get anything, but I do get a Flash for this. So I am going to take a look at that Cafe buena, and right in here, since it didn't throw an error and it wasn't working, well I need to check the instance name, so I need to change that to thumbLoader2. Now I am going to do a Control > Test Movie. If I click the cafe buena, it changes, so be aware of your instance names. If I click back, that changes as well.
First thing I noticed is I don't have the little hand cursor. Quite frankly, I need to use that hand cursor. I need to have this movie clip work like a button, so I need to activate that hand. So what I am going to do is create a new line, and for the allThumbnails, I'm going to change this movie clip. It's buttonmode=true. So now it's going to work like a button.
It's going to give me the hand that I need, so I know that those thumbnails are clickable. I can take this and I can copy it and use it wherever I want, for any movie clip, but I am just going to go ahead and test this movie. As I roll over either one of these, I can see that I get the hand and now users know that these are clickable, and it will load in the correct information. All right. Now what I need to do next is I need to change this content down here as well. So right now this is just a Static Text. I need to change that, so I am going to select this text field and then in the PROPERTIES panel, I want to change this from Static Text to Dynamic Text.
So Dynamic Text means it's going to change at some point in time, and when I select that, I get the opportunity to give it an instance name. So I'm just going to call it something simple like selectedTitle, because that's going to be whatever was selected is going to appear right in there. And then for this text field right here, I am going to change that to Dynamic Text, and I am going to change this to selectedDescription, so that's going to be a description.
I am going to minimize that LIBRARY panel, and just to show you what also you need to do, because down in here for the various PARAGRAPH options what I need to do is I need to change the Behavior. Instead of it being Single Line, I might need this to be MultiLine. So if you have a lot of text, I need to make sure it wraps to the next line. I'll even expand that out more, but notice you also have the ability to make the text Selectable. If you want you can turn that on or off, or you can even Render text as HTML.
Because I could have HTML text in here, so I can make a word bold if I want to. But in general, that's looking pretty good, and notice what it does visually. It gives me these dotted lines for these text fields, an indication that they are Dynamic Text fields. But I needed to keep in mind selected title and selected disk are the instance names, and for this first image I can go ahead and when that image is selected, go ahead and change the selectedTitle, its text property=whatever I want that text to be, and I'll just type in Basketball.
And for the selected Description, change its text property to Basketballdescription, whatever you want that to be. So for the sake of time, I'll just do that. I want to do the exact same thing for the other buttons, so I am going to Copy these two lines and paste them right in here. Of course, I am going to change the text to Cafe - There we are, something like that. Keep it simple, and we are looking pretty good.
So again, I might want to click Auto format and Check syntax tells me everything looks good, and then I'll click Test Movie, so I can change these default values right in here. But notice that when I click on Cafe buena. it changes those two text fields, It also changes it back to say whatever the Basketball description is. It works both ways. So, sure enough, the site is set up and it's ready to go. I can add multiple thumbnails if I want to, and they'll all follow the same format.
But it's really just a matter of adding an additional EventListener that listens for a CLICK that then changes various properties of elements that already exist on your stage.
Find answers to the most frequently asked questions about Creating a Portfolio Web Site Using Flash CS4 Professional .
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- Q: While following along with the course, I encountered the following error in Flash CS4:
1120: Access of undefined property content_mc.What is causing this error?
- A: Flash is looking for something (the content movieclip) with the instance name “content_mc” but it is not finding it. Select the content movieclip on the stage. In the Properties panel give it an instance name of “content_mc”. Make sure there are no spaces before or after. That should resolve the error.
- Q: What is the best strategy for integrating 720/60P HD video into a website? Would creating a blank page that opens in full HD resolution be the best way to view the full quality of the HD video file?
- A: A video file that large would just be unreasonable for most users to open. These settings are a good place to start: 600x400is
Bitrate level: 1,000kbps
Bitrate Encoding: VBR These are just recommendations, and can be modified to preference. Also keep in mind that in Flash, one of the buttons that can be added is a full screen button, which is part of the skins.
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