Can extend us like DisplayObject?

I want to update a textfield with a function at a later date and would normally extend the public as DisplayObject class so I can refer to the textfield object:

public function setTitle():void {
   var so:SharedObject = SharedObject.getLocal("myApp");
   this.root.lblTitle.text = so.data['foo'];
}

Public class can only be extended like Sprite and if so how can I update the textfield of the function?

Well, if you create a local variable inside a function (probably the manufacturer, if this is the one that has the same name as the class itself) and local variables are not visible outside the function.

Instead, outside this function, define lblTitle as a good (I would call it a "instance variable" maybe, but I'm not clear on the terminology of the OO ActionScript quite yet).  Which would look like this:

public var lblTitle:TextField;

public function MyMainClass {
    ...
    lblTitle = new TextField();    lblTitle.text = "This is the Title";
    addChild(lblTitle);
    ...

Now anything can access foo.lblTitle provided that it contains a reference to your main class in the variable 'foo '.  How you do that is another story...

Who help me?

Tags: BlackBerry Developers

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