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Dynamically loading an image

From: Creating a Portfolio Web Site Using Flash CS4 Professional

Video: Dynamically loading an image

One thing you might want to consider when optimizing your site is determining what information is important and needs to be seen immediately, and then what information can be loaded later. Take, for instance, this design. What I want the user to see, initially, is, of course, JOHN DOE, the text, as well as the navigation, but the background can be loaded later. So really, I don't want this background to be part of the Flash file. So what I am going to do is I am just going to turn off that content layer.

Dynamically loading an image

One thing you might want to consider when optimizing your site is determining what information is important and needs to be seen immediately, and then what information can be loaded later. Take, for instance, this design. What I want the user to see, initially, is, of course, JOHN DOE, the text, as well as the navigation, but the background can be loaded later. So really, I don't want this background to be part of the Flash file. So what I am going to do is I am just going to turn off that content layer.

I am going to select that graphic, and I am just going to delete it. So I am going to replace that graphic with a UILoader component that's going to dynamically load an image. So the first thing I need to do is go out and find my image. So I am going to go to Exercise Files/ Assets/design/and I'm going to select this images folder, and I am just going to Copy all of these images, but most importantly, I need this first image, background1.jpg.

So I am going to be aware of this filename, and I am going to put it in the Chapter02/01 begin folder, paste everything in there, and again, that's the image I want to load in. So, let me go back into Flash and I am going to use a component. So I am going to go to Window> Components, and what Components are are assets that I can use where most of the code is written for me. So they basically extend the functionality of my Flash file, without me having to write code.

So this UILoader component is one of them, because it will load in images, or SWF files, or Bitmaps, or JPEGs. If I want, all I have to do is drag it right onto your stage to add it. So I'm going to close the COMPONENTS panel, and I might want to put it in the upper corner, right there, all right. So next thing I need to do is define its properties, so I am going to go to the PROPERTIES panel and what I need to do is just go ahead and open up the COMPONENT INSPECTOR panel to view the different components options that I have available for this UILoader.

So with it selected, I can take a look at my COMPONENT INSPECTOR panel. I want to autoLoad. I want to scale the Content. Well, do I really want to scale the content? No, I wanted to load in at its actual size. So I am going to change scaleContent to false. Next thing I need to do is type in the source. Remember that we did put an images folder in the same folder as this fla, and in this images folder is the background1.jpg. That's where the file is.

Of course, we want to make it visible, but in general, that's all I need to do. So now when I go to Control>Test Movie, it loads in that background, and now my file size in only 15K. So if I just turn on this content layer, you can see, if I go to Control>Test Movie, that I do get the full experience. Now the file that was 100K is only 20K now, so this content is going to load pretty much in a split second for most users.

But it's all about keeping the user in mind and making sure they can see content, and get to content right away, without having to wait. And all this is done using the UILoader component, and pointing to the specific image that you want to load in.

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This video is part of

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  1. 1m 41s
    1. Welcome
      1m 7s
    2. Using the exercise files
      34s
  2. 24m 1s
    1. Understanding web design
      2m 44s
    2. Creating a Flash file
      3m 18s
    3. Importing a design from Photoshop
      7m 45s
    4. Optimizing the design
      10m 14s
  3. 13m 59s
    1. Dynamically loading an image
      3m 37s
    2. Loading random images
      10m 22s
  4. 47m 38s
    1. Creating menu buttons
      8m 18s
    2. Adding functionality to buttons
      8m 56s
    3. Adding navigation
      9m 45s
    4. Creating transitions
      12m 0s
    5. Simplifying code
      8m 39s
  5. 26m 11s
    1. Creating web site sections
      7m 41s
    2. Dynamically loading sections
      11m 7s
    3. Linking to web sites and email addresses
      7m 23s
  6. 29m 18s
    1. Setting up a portfolio
      12m 31s
    2. Adding functionality to thumbnails
      10m 10s
    3. Allowing for unlimited thumbnails
      6m 37s
  7. 41m 17s
    1. Benefits of using XML
      4m 42s
    2. Loading XML content
      4m 34s
    3. Sorting XML content
      7m 32s
    4. Displaying XML content
      7m 35s
    5. Using XML to create thumbnails
      8m 41s
    6. Displaying content with thumbnails
      8m 13s
  8. 25m 59s
    1. Creating and importing video
      9m 47s
    2. Adding a Full Screen button
      4m 15s
    3. Creating custom video controls
      4m 50s
    4. Adding functionality to video thumbnails
      7m 7s
  9. 9m 12s
    1. Adding audio to buttons
      5m 30s
    2. Adding audio to dynamically created buttons
      3m 42s
  10. 21m 19s
    1. Applying professional transitions
      9m 26s
    2. Creating a preloader
      8m 56s
    3. Publishing a web site
      2m 57s
  11. 3m 15s
    1. Reviewing the "corporate" Flash site
      1m 40s
    2. Reviewing the "artistic" Flash site
      1m 35s
  12. 12s
    1. Goodbye
      12s

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