Platform Specifics (#301)

* Playing around with how the platform specifics interfaces etc. might work

* Sample implementation of iOS navigation translucency

* Very slightly reduced code

* Better vendor stuff

* Drop single-implemenation interfaces

* Generics on NavigationPage

* On-demand vendor stuff

* Remove functionally duplicate classes and make ControlGallery work again

* Namespace all the things. XAML test.

* Can use Effect to attach platform specific

* Attach Effect on PropertyChanging for XAML support!

* Rename IConfigPlatform interfaces for readability

* Some renaming to match the documents

* Split class files

* Clear out test-only code

* Re-namespace

* Added On method to rendered Elements

* Allow for removal of platform suffix, convenience methods on specific platforms

* Creating a gallery page for specifics

* Add rudimentary Platform Specifics gallery; make CollapseStyle work on UWP;
Add CollapsedPaneWidth specific property

* Toolbar now working with both collapse styles

* MDP now displaying Content title; toolbar routing around title

* Add a gallery for the iOS NavigationPage stuff

* Add Navigation Page as detail page to verify it works with new Toolbar options

* Make titlebar/toolbar background colors consistent

* ToolbarPlacement now working on NavigationPage

* Toolbar Placement working for tabbed and nav pages

* Fix bug where phone doesn't get default toolbar placement on start

* [Core] Add PS WindowSoftInputModeAdjust

[Core] Make Application extendable

* Toolbar placement now working on Nav, Tabbed, and Master pages on desktop/phone

Remove unnecessary style indirection

Fix build errors

* [A] Add PlatformConfigurationExtensions

* SetSoftInputMode test page

* [A] SetSoftInputMode

Known issue: Status bar color does not work in AdjustResize mode

* [Core] Add PS Blur

* [iOS] Configure renderer for blur

* Add test page

* Move to blur VisualElement for broader support

* Move test pages to gallery

* Update docs

* Use lazy initializer for PlatformConfigurationRegistry

4 files changed, 70 insertions, 8 deletions

diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/PlatformSpecifics_iOSTranslucentNavBarX.xaml b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/PlatformSpecifics_iOSTranslucentNavBarX.xaml
new file mode 100644
index 00000000..3b1318b0
--- /dev/null
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/PlatformSpecifics_iOSTranslucentNavBarX.xaml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<local:TestNavigationPage xmlns="http://xamarin.com/schemas/2014/forms"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:local="clr-namespace:Xamarin.Forms.Controls"
+             xmlns:iOsSpecific="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core"
+             x:Class="Xamarin.Forms.Controls.Issues.PlatformSpecifics_iOSTranslucentNavBarX"
+			 BackgroundColor="Pink"
+			 iOsSpecific:NavigationPage.IsNavigationBarTranslucent="true">
+</local:TestNavigationPage>
\ No newline at end of file
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/PlatformSpecifics_iOSTranslucentNavBarX.xaml.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/PlatformSpecifics_iOSTranslucentNavBarX.xaml.cs
new file mode 100644
index 00000000..601a17af
--- /dev/null
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/PlatformSpecifics_iOSTranslucentNavBarX.xaml.cs
@@ -0,0 +1,44 @@
+using Xamarin.Forms;
+using Xamarin.Forms.CustomAttributes;
+using Xamarin.Forms.Internals;
+using Xamarin.Forms.PlatformConfiguration;
+using Xamarin.Forms.PlatformConfiguration.iOSSpecific;
+using Xamarin.Forms.Xaml;
+
+namespace Xamarin.Forms.Controls.Issues
+{
+	[Preserve(AllMembers = true)]
+	[Issue(IssueTracker.None, 0, "Platform Specifics - iOS Translucent Navigation Bar XAML", PlatformAffected.iOS)]
+#if APP
+	[XamlCompilation(XamlCompilationOptions.Compile)]
+#endif
+	public partial class PlatformSpecifics_iOSTranslucentNavBarX : TestNavigationPage
+	{
+		public PlatformSpecifics_iOSTranslucentNavBarX()
+		{
+#if APP
+			InitializeComponent ();
+#endif
+		}
+
+		protected override void Init()
+		{
+			var button = new Button { Text = "Toggle Translucent", BackgroundColor = Color.Yellow };
+
+			button.Clicked += (sender, args) => On<iOS>().SetIsNavigationBarTranslucent(!On<iOS>().IsNavigationBarTranslucent());
+
+			var content = new ContentPage
+			{
+				Title = "iOS Translucent Navigation Bar",
+				Content = new StackLayout
+				{
+					VerticalOptions = LayoutOptions.Center,
+					HorizontalOptions = LayoutOptions.Center,
+					Children = { button }
+				}
+			};
+
+			PushAsync(content);
+		}
+	}
+}
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Xamarin.Forms.Controls.Issues.Shared.projitems b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Xamarin.Forms.Controls.Issues.Shared.projitems
index 1b4e0b8c..88cfb0bd 100644
--- a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Xamarin.Forms.Controls.Issues.Shared.projitems
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Xamarin.Forms.Controls.Issues.Shared.projitems
@@ -168,6 +168,10 @@
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla39829.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla39458.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla39853.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)PlatformSpecifics_iOSTranslucentNavBarX.xaml.cs">
+      <DependentUpon>PlatformSpecifics_iOSTranslucentNavBarX.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
     <Compile Include="$(MSBuildThisFileDirectory)TestPages\ScreenshotConditionalApp.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla41842.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Bugzilla42277.cs" />
@@ -558,6 +562,12 @@
     </EmbeddedResource>
   </ItemGroup>
   <ItemGroup>
+    <EmbeddedResource Include="$(MSBuildThisFileDirectory)PlatformSpecifics_iOSTranslucentNavBarX.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
+    </EmbeddedResource>
+  </ItemGroup>
+  <ItemGroup>
     <EmbeddedResource Include="$(MSBuildThisFileDirectory)Bugzilla42069_Page.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:UpdateDesignTimeXaml</Generator>
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/_Template.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/_Template.cs
index 05a3a7d2..79ce604b 100644
--- a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/_Template.cs
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/_Template.cs
@@ -1,6 +1,4 @@
-using System;
-
-using Xamarin.Forms.CustomAttributes;
+using Xamarin.Forms.CustomAttributes;
 using Xamarin.Forms.Internals;
 
 #if UITEST
@@ -10,14 +8,15 @@ using NUnit.Framework;
 
 namespace Xamarin.Forms.Controls
 {
-	[Preserve (AllMembers = true)]
-	[Issue (IssueTracker.Github, 1, "Issue Description")]
+	[Preserve(AllMembers = true)]
+	[Issue(IssueTracker.Github, 1, "Issue Description")]
 	public class Issue1 : TestContentPage // or TestMasterDetailPage, etc ...
 	{
-		protected override void Init ()
+		protected override void Init()
 		{
 			// Initialize ui here instead of ctor
-			Content = new Label {
+			Content = new Label
+			{
 				AutomationId = "IssuePageLabel",
 				Text = "See if I'm here"
 			};
@@ -33,4 +32,4 @@ namespace Xamarin.Forms.Controls
 		}
 #endif
 	}
-}
+}
\ No newline at end of file