protected override void Dispose(bool disposing)
{
if (disposing)
{
if (_pathProvider != null)
{
_pathProvider.Dispose();
_pathProvider = null;
}
_shadowLayer.RemoveFromSuperLayer();
_shadowLayer.Dispose();
_shadowLayer = null;
if (_gradientProvider != null)
{
_gradientProvider.Dispose();
_gradientProvider = null;
}
if (_strokeGradientProvider != null)
{
_strokeGradientProvider.Dispose();
_strokeGradientProvider = null;
}
}
base.Dispose(disposing);
}
public static void SetMaterialElevation(this UIView view, double elevation)
{
var shadowLayer = view.FindLayerOfType <ShadowLayer>();
if (shadowLayer == null)
{
shadowLayer = new ShadowLayer();
view.Layer.InsertSublayer(shadowLayer, 0);
}
if (!ReferenceEquals(view.Layer, shadowLayer))
{
shadowLayer.Frame = view.Bounds;
}
shadowLayer.Elevation = (float)elevation;
CALayer currentLayer = view.FindLayerOfType <CAGradientLayer>();
if (currentLayer == null)
{
currentLayer = view.Layer;
if (currentLayer == null)
{
return;
}
}
if (currentLayer.CornerRadius > 0)
{
shadowLayer.CornerRadius = currentLayer.CornerRadius;
}
}
public void Refresh()
{
if (scMgr != null && suspendLayoutCount == 0)
{
ScMgr.Refresh(drawBox);
}
if (ShadowLayer != null)
{
ShadowLayer.Refresh();
}
}
private void Initialize()
{
_shadowLayer = new ShadowLayer();
InsertSublayer(_shadowLayer, 0);
/*
* When creating custom layers, the contentsScale must
* be set in order to draw smooth lines. Without this line,
* context clipping is blurry and not smooth at all!
*/
ContentsScale = UIScreen.MainScreen.Scale;
}
private void AssociatedObject_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (!IsEnabled)
{
return;
}
if (!AssociatedObject.IsVisible)
{
ShadowLayer.Hide();
}
else
{
SetZOrder();
ShadowLayer.Show();
}
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
_shadowLayer.RemoveFromSuperLayer();
_shadowLayer.Dispose();
_shadowLayer = null;
_colors = null;
_positions = null;
_colorPositions = null;
_strokeColors = null;
_strokePositions = null;
_strokeColorPositions = null;
}
base.Dispose(disposing);
}
private void Initialize()
{
_dirty = true;
_pathDirty = true;
_bounds = new CGRect();
_shadowLayer = new ShadowLayer();
_pathProvider = new RectPathProvider();
_defaultShadowColor = _shadowLayer.ShadowColor;
InsertSublayer(_shadowLayer, 0);
/*
* When creating custom layers, the contentsScale must
* be set in order to draw smooth lines. Without this line,
* context clipping is blurry and not smooth at all!
*/
ContentsScale = UIScreen.MainScreen.Scale;
}
