protected override void OnAttached()
{
// Gesture touches
gesture = new GestureTouchSam(this, null, View);
View.TouchDelegate = gesture;
View.Clickable = true;
View.LongClickable = true;
View.SoundEffectsEnabled = true;
// Animation tap
overlayAnimation = new FrameLayout(Container.Context)
{
LayoutParameters = new ViewGroup.LayoutParams(-1, -1),
Clickable = false,
Focusable = false,
};
Container.AddView(overlayAnimation);
Container.LayoutChange += OnViewLayoutChanged;
overlayAnimation.BringToFront();
if (IsSdk21)
{
tapColor = Touch.GetColor(Element).ToAndroid();
overlayAnimation.Background = CreateRipple(tapColor);
}
// Updates
UpdateAnimationColor();
UpdateLongTapCommand();
UpdateLongTapLatency();
}
private void UpdateAnimationColor()
{
var color = Touch.GetColor(Element);
if (color == Xamarin.Forms.Color.Default)
{
return;
}
tapColor = color.ToAndroid();
tapColorAlpha = (tapColor.A == 255) ? (byte)80 : tapColor.A;
if (IsSdk21)
{
ripple.SetColor(GetRippleColorSelector(tapColor));
}
}
private void SetEffectColor()
{
var color = Touch.GetColor(Element);
if (color == Xamarin.Forms.Color.Default)
{
return;
}
this.color = color.ToAndroid();
alpha = this.color.A == 255 ? (byte)80 : this.color.A;
if (EnableRipple)
{
ripple.SetColor(GetPressedColorSelector(this.color));
}
}
private void UpdateEffectColor()
{
_layer?.Dispose();
_layer = null;
var color = Touch.GetColor(Element);
if (color == Color.Default)
{
return;
}
_alpha = color.A < 1.0 ? 1 : 0.3;
_layer = new UIView
{
BackgroundColor = color.ToUIColor(),
UserInteractionEnabled = false,
};
}