Community
Topic: Xamarin component
Camera not showing
I followed the Getting Started tutorial for the Xamarin Component. I am working with an Android Project using Xamarin Native.
My OnCreate Method looks like this:
var _cameraFragment = FragmentManager.FindFragmentById
_cameraFragment.StartRecognition(new RecognitionOptions(RecognitionOptions.RecognitionStorage.Local, RecognitionOptions.RecognitionMode.ContinuousScan, new CloudRecognitionInfo(new string[] { })), this);
The app opens fine in a device with Android 6.0.1 (Nexus 7). The problem is when the app opens, the camera doesnt shows, all I can see is a blank screen. I tought with the code above I would be able to see at least the camera, or I have to do something else?
In the output of visualstudio I can see the following:
07-13 13:47:55.123 I/PikkartCore3_Native(30858): ARNativeWrapper:markerNotFound: ...
07-13 13:47:55.123 E/PikkartCore3_Native(30858): ARNativeWrapper:ImageProcessing: took 5 ms
07-13 13:47:55.168 E/PikkartCore3_Native(30858): ARNativeWrapper:ImageProcessing: took 13 ms
07-13 13:47:55.234 E/PikkartCore3_Native(30858): ARNativeWrapper:ImageProcessing: took 13 ms
07-13 13:47:55.262 I/PikkartCore3_Native(30858): ARNativeWrapper:markerNotFound: ...
... and it continuous with similar messages.
I figured out that we need to render the elements to get them visible (the camera, for example).
Hope you give us a tutorial soon! :)
Friday, July 14, 2017
Yes, to view the items you need to render them. You can try porting on Xamarin the Android tutorial at this link, or use a Xamarin rendering engine like Urho3d.
To develop your rendering engine you can use these three static methods of the RecognitionFragment:
- RecognitionFragment.getCurrentProjectionMatrix ()and
- RecognitionFragment.getCurrentModelViewMatrix ()
- RecognitionFragment.isTracking ()
- public static void RecognitionFragment.renderCamera (int viewportWidth, int viewportHeight, int angle)Best,
Can you provide sample code for rendering camera .I am new to Xamarin so no idea how to do it. I just want camera to be shown.