save button error in AS project

Question

Whats wrong with the following code,There is an error at saveButton.visible = false; discardButton.visible = false;

package
{
import flash.display.Sprite;
import flash.media.Camera;
import flash.media.Video;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.events.MouseEvent;
import flash.net.FileReference;
import flash.utils.ByteArray;
import com.adobe.images.JPGEncoder;

public class caml extends Sprite
{
    private var camera:Camera = Camera.getCamera();
    private var video:Video = new Video();
    private var bmd:BitmapData = new BitmapData(320,240);
    private var bmp:Bitmap;
    private var fileReference:FileReference = new FileReference();
    private var byteArray:ByteArray;
    private var jpg:JPGEncoder = new JPGEncoder();

    public function caml()
    {
        saveButton.visible = false;
        discardButton.visible = false;

        saveButton.addEventListener(MouseEvent.MOUSE_UP, saveImage);
        discardButton.addEventListener(MouseEvent.MOUSE_UP, discard);
        capture.addEventListener(MouseEvent.MOUSE_UP, captureImage);

        if (camera != null)
        {
            video.smoothing = true;
            video.attachCamera(camera);
            video.x = 140;
            video.y = 40;
            addChild(video);
        }
        else
        {
            trace("No Camera Detected");
        }
    }
        private function captureImage(e:MouseEvent):void
        {
            bmd.draw(video);
            bmp = new Bitmap(bmd);
            bmp.x = 140;
            bmp.y = 40;
            addChild(bmp);

            capture.visible = false;
            saveButton.visible = true;
            discardButton.visible = true;
        }

        private function saveImage(e:MouseEvent):void
        {
            byteArray = jpg.encode(bmd);
            fileReference.save(byteArray, "Image.jpg");
            removeChild(bmp);
            saveButton.visible = false;
            discardButton.visible = false;
            capture.visible = true;
        }

        private function discard(e:MouseEvent):void
        {
            removeChild(bmp);
            saveButton.visible = false;
            discardButton.visible = false;
            capture.visible = true;
        }


}
}

as far as I can tell from this code (if it's not partial) then saveButton and discardButton would be null at the point you are getting there. you have no initialization of those variables. — KensoDev, Dec 23 '10 at 06:20
I thought of the same and how to attach the button to the button event — Rajeev, Dec 23 '10 at 06:48

Mattias · Answer 1 · 2010-12-23T07:25:30.773

0

I guess this is a document root class and the buttons is added to stage in the flash fla file. In that case you need to add the buttons to your declaration as public members:

public var saveButton : Button;
public var discardButton : Button;

UPDATE

I never use the flash components myself but you might find an answer here on how to use Flash components in Flashbuilder: http://www.moock.org/blog/archives/000253.html http://www.ruttencutter.com/?p=20

edited Dec 23 '10 at 07:25

answered Dec 23 '10 at 06:48

Mattias

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And how do you import the Button.Its a AS project – Rajeev Dec 23 '10 at 07:07
import fl.controls.Button; (make sure the component is added to your stage or assets library before compiling, otherwise it won't work). – Chunky Chunk Dec 24 '10 at 04:03

save button error in AS project

1 Answers1