[Android] Fix issue clipping a Label

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue12471.xaml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<controls:TestContentPage
+    xmlns="http://xamarin.com/schemas/2014/forms"
+    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+    xmlns:controls="clr-namespace:Xamarin.Forms.Controls"
+    x:Class="Xamarin.Forms.Controls.Issues.Issue12471"
+    Title="Issue 12471">
+    <StackLayout>
+        <Label
+            Padding="12"
+            BackgroundColor="Black"
+            TextColor="White"
+            Text="If the Label below has a circular clip applied, the test has passed."/>
+        <Grid>
+            <Label
+                Text="X"
+                TextColor="White"
+                FontSize="30"
+                HeightRequest="60"
+                WidthRequest="60"
+                HorizontalOptions="Center"
+                VerticalOptions="Center"
+                VerticalTextAlignment="Center"
+                HorizontalTextAlignment="Center"
+                BackgroundColor="Red">
+                <Label.Clip>
+                    <EllipseGeometry
+                        Center="30,30"
+                        RadiusX="30"
+                        RadiusY="30"/>
+                </Label.Clip>
+            </Label>
+        </Grid>
+    </StackLayout>
+</controls:TestContentPage>

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue12471.xaml.cs

@@ -0,0 +1,28 @@
+using Xamarin.Forms.CustomAttributes;
+using Xamarin.Forms.Internals;
+
+
+#if UITEST
+using Xamarin.Forms.Core.UITests;
+using NUnit.Framework;
+#endif
+
+namespace Xamarin.Forms.Controls.Issues
+{
+	[Preserve(AllMembers = true)]
+	[Issue(IssueTracker.Github, 12471, "[Bug] Label.Clip won't clip on Android", PlatformAffected.Android)]
+	public partial class Issue12471 : TestContentPage
+	{
+		public Issue12471()
+		{
+#if APP
+			InitializeComponent();
+#endif
+		}
+
+		protected override void Init()
+		{
+
+		}
+	}
+}

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Xamarin.Forms.Controls.Issues.Shared.projitems

@@ -1714,6 +1714,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Issue11081.xaml.cs">
       <DependentUpon>Issue11081.xaml</DependentUpon>
     </Compile>
+    <Compile Include="$(MSBuildThisFileDirectory)Issue12471.xaml.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Issue12380.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Issue12372.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Issue12374.xaml.cs" />
@@ -2129,6 +2130,9 @@
     <EmbeddedResource Include="$(MSBuildThisFileDirectory)Issue11081.xaml">
       <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
     </EmbeddedResource>
+    <EmbeddedResource Include="$(MSBuildThisFileDirectory)Issue12471.xaml">
+      <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
+    </EmbeddedResource>
     <EmbeddedResource Include="$(MSBuildThisFileDirectory)Issue12518.xaml">
       <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
     </EmbeddedResource>

Xamarin.Forms.Platform.Android/FastRenderers/LabelRenderer.cs

@@ -147,6 +147,13 @@ SizeRequest IVisualElementRenderer.GetDesiredSize(int widthConstraint, int heigh
 			return result;
 		}
 
+		public override void Draw(Canvas canvas)
+		{
+			canvas.ClipShape(Context, Element);
+
+			base.Draw(canvas);
+		}
+
 		protected override void OnLayout(bool changed, int left, int top, int right, int bottom)
 		{
 			base.OnLayout(changed, left, top, right, bottom);