The new Camera2 framework was introduced in API 21 (5.0 Lollipop) and provides a wide featured framework for controlling camera devices connected to any Android device.
Start by setting up the folder structure Renderers | CameraView inside the Camera.Droid project. Inside the CameraView folder, add a file called CameraCaptureListener.cs and implement the following:
public class CameraCaptureListener : CameraCaptureSession.CaptureCallback
{
public event EventHandler PhotoComplete;
public override void OnCaptureCompleted(CameraCaptureSession session, CaptureRequest request,
TotalCaptureResult result)
{
PhotoComplete?.Invoke(this, EventArgs.Empty);
}
}
All we need to do is fire an event every time the OnCaptureCompleted function is called. This function is called after all the image capture processing is completed.
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