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Thread: progress bar

  1. #1
    Member
    Join Date
    Dec 2008
    Posts
    35

    progress bar

    i tried to make a progress bar for this so that everything would be loaded before it starts, i searched and found somone who showed me, but it didnt work. how can i make this work? the code is this

    Code:
    package
    {
        import flash.display.Sprite;
        import flash.display.Stage;
        import flash.events.Event;
        import flash.events.KeyboardEvent;
        import flash.ui.Keyboard;
        import flash.display.Loader;
        import flash.net.URLRequest;
        import flash.text.TextField;
        import flash.controls.ProgressBar;
        import flash.controls.ProgressBarMode;
    
        public class gaia extends Sprite
        {
            private var pb:ProgressBar = new ProgressBar();
            private var leaf:Loader;
            private var instructions:TextField = new TextField();
            public function gaia ()
            {
                pb.width = 150;
                pb.mode = ProgressBarMode.POLLED;
                pb.source = Loader;
                pb.move(20,20);
                instructions.text = "use the arrow keys to move around";
                instructions.y = 10;
                instructions.x = 20;
                instructions.width = 500;
                leaf = new Loader;
                leaf.load (new URLRequest("http://a2.cdn.gaiaonline.com/gaia/members/ava/04/41/207d91bd6d4104_flip.png"));
                leaf.x = 20;
                leaf.y = 20;
                addChild (pb);
                addChild (instructions);
                addChild (leaf);
                stage.addEventListener (KeyboardEvent.KEY_DOWN,keyPressedDown);
            }
            private function keyPressedDown (event:KeyboardEvent):void
            {
                var x_speed:int=0;
                var y_speed:int=0;
                switch (event.keyCode)
                {
                    case Keyboard.LEFT :
                        leaf.load (new URLRequest("http://a2.cdn.gaiaonline.com/gaia/members/ava/04/41/207d91bd6d4104.png"));
                        x_speed = -2;
                        break;
                    case Keyboard.RIGHT :
                        leaf.load (new URLRequest("http://a2.cdn.gaiaonline.com/gaia/members/ava/04/41/207d91bd6d4104_flip.png"));
                        x_speed = 2;
                        break;
                    case Keyboard.UP :
                        y_speed = -2;
                        break;
                    case Keyboard.DOWN :
                        y_speed = 2;
                        break;
                }
                leaf.x += x_speed;
                leaf.y += y_speed;
            }
        }
    }
    and my terminal spit this out

    Code:
    ryland@ryland-desktop:~/Desktop/programming$ mxmlc gaia.as
    Loading configuration file /usr/local/flex/frameworks/flex-config.xml
    /home/ryland/Desktop/programming/gaia.as(16): col: 24 Error: Type was not found or was not a compile-time constant: ProgressBar.
    
            private var pb:ProgressBar = new ProgressBar();
                           ^
    
    /home/ryland/Desktop/programming/gaia.as(16): col: 42 Error: Call to a possibly undefined method ProgressBar.
    
            private var pb:ProgressBar = new ProgressBar();
                                             ^
    
    /home/ryland/Desktop/programming/gaia.as(16): col: 42 Error: Call to a possibly undefined method ProgressBar.
    
            private var pb:ProgressBar = new ProgressBar();
                                             ^
    
    /home/ryland/Desktop/programming/gaia.as(22): col: 23 Error: Access of undefined property ProgressBarMode.
    
                pb.mode = ProgressBarMode.POLLED;
                          ^
    
    /home/ryland/Desktop/programming/gaia.as(11): col: 27 Error: Definition flash.controls:ProgressBar could not be found.
    
        import flash.controls.ProgressBar;
                              ^
    
    /home/ryland/Desktop/programming/gaia.as(12): col: 27 Error: Definition flash.controls:ProgressBarMode could not be found.
    
        import flash.controls.ProgressBarMode;
                              ^
    
    ryland@ryland-desktop:~/Desktop/programming$
    can anyone tell me how to make this work?

  2. #2
    Flash Developer
    Join Date
    Jul 2008
    Location
    Scotland
    Posts
    106
    Hi, use another swf to load the swf that you want loaded(if that makes sense). Create a completely new flash file with the same dimensions and settings as the one you want loaded. Then add

    Code:
    var req:URLRequest = new URLRequest("my_flash_file.swf");
    var myLoader:Loader = new Loader();
    myLoader.load(req);
    
    
    
    myLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, checkProgress);
    
    function checkProgress(p:ProgressEvent):void {
    	var percent:int = (p.currentTarget.bytesLoaded / p.currentTarget.bytesTotal) * 100;
    	bar.width = percent * 2;
    }
    
    myLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
    function onComplete(e:Event):void {
    	bar.visible = false;	
            addChild(myLoader);
    }

    You will need to add a bar movieclip to the stage and name the instance "bar".


    Hope this makes sense, I havent had much sleep so my head is a bit cloudy.

    n

  3. #3
    Member
    Join Date
    Dec 2008
    Posts
    35
    looks good to me! thanks, ill try it out when i have the time

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