Svg image does not appear on image button

[wwen0]

I have below code as an experiment. But no image appears on the button. I added a background color for the button so that I know where it is. I put the sag image in Reesources/drawable/ for android and Resources/ for iOS. I am not sure if I can just use the image name without full path. Also, I don't know what BuildAction to choose for the image. So I chose EmbeddedResource. Please correct me if there is anything I did wrong. Thank you!