using Android.Graphics; using CameraPreview; using CameraPreview.Droid; using System.IO; namespace Demo.Droid { public class AndroidDecoder : DefaultDecoderBase { private readonly FaceDecoder _faceDecoder = new FaceDecoder(); public override IScanResult Decode(Bitmap image) { using (var stream = new MemoryStream()) { image.Compress(Bitmap.CompressFormat.Jpeg, 100, stream); this._faceDecoder.Decode(stream.ToArray()); } return base.Decode(image); } } }