Adobe AIR Development

[RapsFan]

Good day everyone. I am using the following code to take a snapshot from the webcam and then save it with a button. It works when I run the app in the AIR player but on the Playbook it's not accessing the camera, nothing shows up.

<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
		xmlns:mx="library://ns.adobe.com/flex/mx"
		xmlns:s="library://ns.adobe.com/flex/spark"
		actionBarVisible="false"  creationComplete="init()" overlayControls="false"
		tabBarVisible="false">
	<fx:Declarations>
		<!-- Place non-visual elements (e.g., services, value objects) here -->
	</fx:Declarations>
	<s:Panel id="p" top="1" width="1024" height="600" backgroundAlpha="0.0" horizontalCenter="0">
		<s:Panel id="imageViewer" top="-32" width="1024" height="600" backgroundAlpha="0.0" horizontalCenter="0"/>
		<s:Panel id="preview" top="-32" width="1024" height="600" backgroundAlpha="0.0" horizontalCenter="0"/>			
		<DrawingArea xmlns="*" id="drawingArea" y="-32" width="100%" height="509"/>
	</s:Panel>
	<fx:Script>
		<![CDATA[
			import com.tinkerlog.WebCam;
			import com.tinkerlog.util.Base64;
			
			import flash.media.Camera;
			
			import mx.core.UIComponent;
			import mx.graphics.codec.JPEGEncoder;
			import mx.graphics.codec.PNGEncoder;
			
			private var webCam:WebCam;
			
			private function init():void {
				webCam = new WebCam(1024, 600);
				var ref:UIComponent = new UIComponent();
				preview.removeAllElements();
				preview.addElement(ref);
				ref.addChild(webCam);	
			}
			private function takeSnapshot():void {
				imageViewer.visible = true;
				preview.visible=false;
				imageViewer.width = preview.width;
				imageViewer.height = preview.height;
				var uiComponent : UIComponent = new UIComponent();
				uiComponent.width = webCam.width;
				uiComponent.height = webCam.height;
				var photoData:Bitmap = webCam.getSnapshot();
				var photoBitmap:BitmapData = photoData.bitmapData;
				uiComponent.addChild(photoData);
				imageViewer.removeAllElements();
				imageViewer.addChild(uiComponent);
			}
			private function deleteSnapshot():void {
				imageViewer.removeAllElements();
			}
			
			public function save():void
			{
				var bd:BitmapData = new BitmapData(p.width, p.height);
				bd.draw(this);
				
				var barr:ByteArray = (new PNGEncoder()).encode(bd);
				(new FileReference()).save(barr, "capture.png");
			}
		]]>
	</fx:Script>
</s:View>

[CoCopia]

You cant' take a pic yet, the BB SDK doesn't have the API for it, it will work desktop, because your using Adobes API to get an image, go to this thread here.

BB SDK API Camera

[RapsFan]

The author of this post http://supportforums.blackberry.com/t5/Tablet-OS-SDK-for-Adobe-AIR/Tablet-Camera-API/m-p/1077905/hig... has gotten it to ok.

[JohnPinkerton · Accepted solution]

Don't forget, you need to add the permissions for it in your blackberry-tablet.xml file.

    <action>use_camera</action>

 It should prompt you when launching the app to allow permission to the camera. You might also want to add:

    <action>access_shared</action>

You might want to take a look at this article.

[RapsFan]

Eureka! I had <action>access_shared</action> but didnt know about <action>use_camera</action>. Thats a great link, can't wait to do some bedtime reading on my PB! Many thanks John

[JohnPinkerton]

Glad you got it going!