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.
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