88 lines
2.5 KiB
C#
88 lines
2.5 KiB
C#
using CoreAnimation;
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using Pixiview.iOS.Renderers;
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using Pixiview.UI;
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using UIKit;
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using Xamarin.Forms;
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using Xamarin.Forms.Platform.iOS;
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[assembly: ExportRenderer(typeof(BlurryPanel), typeof(BlurryPanelRenderer))]
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namespace Pixiview.iOS.Renderers
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{
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public class BlurryPanelRenderer : ViewRenderer<BlurryPanel, UIVisualEffectView>
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{
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private UIVisualEffectView nativeControl;
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private CALayer bottom;
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protected override void OnElementChanged(ElementChangedEventArgs<BlurryPanel> e)
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{
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base.OnElementChanged(e);
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if (e.OldElement != null)
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{
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if (bottom != null)
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{
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if (bottom.SuperLayer != null)
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{
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bottom.RemoveFromSuperLayer();
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}
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bottom.Dispose();
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bottom = null;
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}
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}
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if (e.NewElement != null)
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{
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e.NewElement.BackgroundColor = Color.Default;
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if (Control == null)
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{
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var blur = UIBlurEffect.FromStyle(UIBlurEffectStyle.SystemMaterial);
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nativeControl = new UIVisualEffectView(blur)
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{
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Frame = Frame
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};
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SetNativeControl(nativeControl);
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}
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}
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}
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public override void LayoutSubviews()
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{
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base.LayoutSubviews();
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if (nativeControl != null)
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{
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if (bottom == null)
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{
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bottom = new CALayer
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{
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BackgroundColor = UIColor.White.CGColor,
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ShadowColor = UIColor.Black.CGColor,
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ShadowOpacity = 1.0f
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};
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}
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if (bottom.SuperLayer == null)
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{
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nativeControl.Layer.InsertSublayer(bottom, 0);
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}
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bottom.Frame = new CoreGraphics.CGRect(0, Frame.Height - 5, Frame.Width, 5);
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nativeControl.Frame = Frame;
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}
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}
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protected override void Dispose(bool disposing)
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{
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if (bottom != null)
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{
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if (bottom.SuperLayer != null)
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{
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bottom.RemoveFromSuperLayer();
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}
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bottom.Dispose();
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bottom = null;
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}
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base.Dispose(disposing);
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}
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}
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}
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