protected override void OnElementChanged(ElementChangedEventArgs <Xamarin.Forms.Button> e)
{
base.OnElementChanged(e);
button = this.Control; button.SetAllCaps(false);
var label = (Android.Widget.Button)Control; // for example
Typeface font = Typeface.CreateFromAsset(Forms.Context.Assets, "Fonts/RobotoLight.ttf"); // font name specified here
label.Typeface = font;
if (Control != null)
{
var button = e.NewElement;
// Create a drawable for the button's normal state
_normal = new Android.Graphics.Drawables.GradientDrawable();
if (button.BackgroundColor.R == -1.0 && button.BackgroundColor.G == -1.0 && button.BackgroundColor.B == -1.0)
{
_normal.SetColor(Android.Graphics.Color.ParseColor("#95ffffff"));
}
else
{
_normal.SetColor(Android.Graphics.Color.ParseColor("#95ffffff"));
}
_normal.SetStroke((int)button.BorderWidth, button.BorderColor.ToAndroid());
_normal.SetCornerRadius(button.BorderRadius);
// Create a drawable for the button's pressed state
_pressed = new Android.Graphics.Drawables.GradientDrawable();
var highlight = Context.ObtainStyledAttributes(new int[] { Android.Resource.Attribute.ColorActivatedHighlight }).GetColor(0, Android.Graphics.Color.Gray);
_pressed.SetColor(Android.Graphics.Color.ParseColor("#30ffffff"));
_pressed.SetStroke((int)button.BorderWidth, button.BorderColor.ToAndroid());
_pressed.SetCornerRadius(button.BorderRadius);
// Add the drawables to a state list and assign the state list to the button
var sld = new StateListDrawable();
sld.AddState(new int[] { Android.Resource.Attribute.StatePressed }, _pressed);
sld.AddState(new int[] { }, _normal);
Control.SetBackgroundDrawable(sld);
}
}
