On Aug 30, 2012, at 7:01 PM, technohead <[email protected]> wrote:
> anyone know if it's possible to use the front facing camera?
It should be...
> There doesn't appear to be a way to get the count of cameras,
http://androidapi.xamarin.com/?link=P%3aAndroid.Hardware.Camera.NumberOfCameras
> and trying to open call the static method Open when there is only a front
> facing camera (on the Nexus 7)
Camera.Open() is documented as returning the first back-facing camera:
http://androidapi.xamarin.com/index.aspx?link=M%3aAndroid.Hardware.Camera.Open()
> Creates a new Camera object to access the first back-facing camera on the
> device. If the device does not have a back-facing camera, this returns null.
You need to use Camera.Open(int), where `cameraid` is the ID of the camera to
open.
If you know you're on the Nexus 7, this should work:
var camera = Camera.Open(0);
However, if you want to code sanely and want the first front-facing camera...
static IEnumerable<Tuple<int, Camera.CameraInfo>> GetCameras ()
{
int end = Camera.NumberOfCameras;
for (int i = 0; i < end; ++i) {
var info = new Camera.CameraInfo ();
Camera.GetCameraInfo (i, info);
yield return Tuple.Create (i, info);
}
}
static int? GetFrontFacingCamera ()
{
var front = GetCameras ().FirstOrDefault (c => c.Item2.Facing
== CameraFacing.Front);
return front != null ? front.Item1 : null;
}
- Jon
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