以下代码有什么问题，saveButton.visible = false；丢弃按钮.可见 = 假；
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;
}
}
}