ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with cameras
var cam:Camera = Camera.getCamera();
if (cam == null)
{
trace("User has no cameras installed.");
}
else
{
trace("User has at least 1 camera installed.");
}
Since the Camera class doesn’t extend the DisplayObject class, it cannot be directly added to the display list using the
addChild() method. In order to display the camera’s captured video, you need to create a new Video object and call
the attachCamera() method on the Video instance.
This snippet shows how you can attach the camera if one exists; if not, the application simply displays nothing:
var cam:Camera = Camera.getCamera();
if (cam != null)
{
var vid:Video = new Video();
vid.attachCamera(cam);
addChild(vid);
}
Mobile device cameras
The Camera class is not supported in the Flash Player runtime in mobile browsers.
In AIR applications on mobile devices you can access the camera or cameras on the device. On iOS, you can use both
the front- and the back-facing camera, but only one camera output can be displayed at any given time. (Attaching a
second camera will detach the first.) The front-facing camera is horizontally mirrored on iOS, on Android, it is not.
Detecting permissions for camera access
Flash Player 9 and later, Adobe AIR 1.0 and later
In the AIR application sandbox, the application can access any camera without the user's permission. On Android,
however, the application must specify the Android CAMERA permission in the application descriptor.
Before Flash Player can display a camera’s output, the user must explicitly allow Flash Player to access the camera.
When the attachCamera() method gets called Flash Player displays the Flash Player Settings dialog box which
prompts the user to either allow or deny Flash Player access to the camera and microphone. If the user clicks the Allow
button, Flash Player displays the camera’s output in the Video instance on the Stage. If the user clicks the Deny button,
Flash Player is unable to connect to the camera and the Video object does not display anything.
If you want to detect whether the user allowed Flash Player access to the camera, you can listen for the camera’s status
event (StatusEvent.STATUS), as seen in the following code:
Last updated 6/6/2012
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