Xamarin Blueprints

Integrating the Android Camera2 framework

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 ...