MACROMEDIA FLASH MX 2004 - ACTIONSCRIPT, Reference Manual

Page: 200 / 816

200 Chapter 11: Working with External Media
To display download progress using the ProgressBar component:
1
In a new Flash document, create a movie clip on the Stage and name it
target_mc
.
2
Open the Components panel (Window > Development Panels > Components).
3
Drag a ProgressBar component from the Components panel to the Stage.
4
In the Property inspector, give the ProgressBar component the name
pBar
and, on the
Parameters tab, select Manual from the Mode pop-up menu.
5
Select Frame 1 in the Timeline and then open the Actions panel (Window > Development
Panels > Actions).
6
Add the following code to the Actions panel:
// create both a MovieClipLoader object and a listener object
myLoader = new MovieClipLoader();
myListener = new Object();
// add the MovieClipLoader callbacks to your listener object
myListener.onLoadStart = function(clip) {
// this event is triggered once, when the load starts
pBar.label = "Now loading: " + clip;
};
myListener.onLoadProgress = function(clip, bytesLoaded, bytesTotal) {
var percentLoaded = int (100*(bytesLoaded/bytesTotal));
pBar.setProgress(bytesLoaded, bytesTotal);
};myLoader.addListener(myListener);
myLoader.loadClip("veryLargeFile.swf", target_mc);
7
Test the document by selecting Control > Test Movie.
For more information, see the MovieClipLoader class entry in Chapter 12, “ActionScript
Dictionary,” on page 205 .