Android F# application: sensors

[Daniele Ciarrocchi]

I am trying to write a simple android application in F# with Visual Studio and Xamarin, to see how F# works. This app has to take a picture (or a colored circle) and move it over the screen when i move my device. How can I use sensors in F#? (accelerometer, gyroscope..) to do this? I can't find how to use them.

[Jon Wood]

Probably a couple of things (of which you may have already tried).

Here's an accelerometer recipe from Xamarin

And, what I would try, is this Device Motion Plugin component

Hope one of those works for you!

[Daniele Ciarrocchi]

Thank you, it helped!

I also found this example: it use the barometer, I'll try to modify it to use the other sensors!

[Daniele Ciarrocchi]

Ok i got this problem now:

let ra = new RotateAnimation(float32(0),float32(360),Animation.RELATIVE_TO_SELF,float32(0.5),Animation.RELATIVE_TO_SELF,float32(0.5))

The field, constructor or member 'RELATIVE_TO_SELF' is not defined.

Do you know how to solve this and have the image rotating with the pivot set in his center? What F# use instead of relative_to_self to have the same result?

[Daniele Ciarrocchi]

Ok I found by myself: Dimension.RelativeToSelf
I tried it one day ago but it didn't work, but today it seems working

[Jon Wood]

That tends to be how it goes :p

Glad it's working!