FLASH® LITE™ 2.x - Adobe Help and Support

function intervalFunc(target_mc) {
// display a trivial message which displays the instance name and arbitrary
text.
trace(target_mc+" has been loaded for "+getTimer()/1000+" seconds.");
/* when the target movie clip is clicked (and released) you clear the
interval
and remove the movie clip. If you don't clear the interval before deleting
the movie clip, the function still calls itself every second even though
the
movie clip instance is no longer present. */
target_mc.onRelease = function() {
trace("clear interval");
clearInterval(this.myInterval);
// delete the target movie clip
removeMovieClip(this);
};
}
var jpeg_mcl:MovieClipLoader = new MovieClipLoader();
jpeg_mcl.addListener(listenerObject);
jpeg_mcl.loadClip("http://www.helpexamples.com/flash/images/image1.jpg",
this.createEmptyMovieClip("jpeg_mc", this.getNextHighestDepth()));
If you work with setInterval() within classes, you need to be sure to use the this keyword
when you call the function. The setInterval()function does not have access to class
members if you do not use the keyword. This is illustrated in the following example. For a
FLA file with a button called deleteUser_btn, add the following ActionScript to Frame 1:
var me:User = new User("Gary");
this.deleteUser_btn.onRelease = function() {
trace("Goodbye, "+me.username);
clearInterval(me.intervalID);
delete me;
};
Then create a file called User.as in the same directory as your FLA file. Enter the following
ActionScript:
class User {
var intervalID:Number;
var username:String;
function User(param_username:String) {
trace("Welcome, "+param_username);
this.username = param_username;
this.intervalID = setInterval(this, "traceUsername", 1000, this.username);
}
function traceUsername(str:String) {
trace(this.username+" is "+getTimer()/1000+" seconds old, happy
birthday.");
}
}
76 ActionScript language elements