Add TextColor Property to Picker, TimePicker, DatePicker (#84)

* Add TextColor property to TimePicker
Add TextColor page to TimePicker gallery
Add TimePicker color toggling to color toggle test page
Split color toggle tests up among tabs

* Implement TimePicker.TextColor in iOS

* Implement TimePicker.TextColor for WinRT tablet

* Add IsEnabled=false tests to DefaultColorToggleTest Button and TimePicker
Consolidate ColorStates array
Fix IsEnabled changing color bug on iOS

* Implement TimePicker.TextColor for WP8

* Add TextColor property to DatePicker
Add DatePicker section to DefaultColorToggleTest
Impement DatePicker.TextColor for WP8

* Implement DatePicker.TextColor for WinRT/UWP/Windows Phone 8.1

* Implement DatePicker.TextColor for iOS

* Add TextColor to DatePicker Gallery Page

* Implement DatePicker.TextColor for Android

* Add Picker Gallery page for TextColor
Implement Picker.TextColor on Android
Consolidate TextColor management for Button, Picker, DatePicker, TimePicker
Implement

* Add untracked TextColorSwitcher
Implement Picker.TextColor in iOS

* Implement Picker.TextColor in WinRT/UWP/Windows Phone 8.1
Remove Pioker Loaded handlers in Dispose

* Implement Picker.TextColor in WP8

* Removed unused field
Update ignored warnings

* Update docs

* Use nameof() for BindableProperties

* Cleanup

* Fix custom renderer crashes for classes using TextColorSwitcher

* Correct property name references

* Fix typo and 'if' formatting

* Add missing else

3 files changed, 93 insertions, 0 deletions

diff --git a/docs/Xamarin.Forms.Core/Xamarin.Forms/DatePicker.xml b/docs/Xamarin.Forms.Core/Xamarin.Forms/DatePicker.xml
index 913fdd7d..e1eaddb5 100644
--- a/docs/Xamarin.Forms.Core/Xamarin.Forms/DatePicker.xml
+++ b/docs/Xamarin.Forms.Core/Xamarin.Forms/DatePicker.xml
@@ -315,5 +315,36 @@ DatePicker datePicker = new DatePicker
         </remarks>
       </Docs>
     </Member>
+    <Member MemberName="TextColor">
+      <MemberSignature Language="C#" Value="public Xamarin.Forms.Color TextColor { get; set; }" />
+      <MemberSignature Language="ILAsm" Value=".property instance valuetype Xamarin.Forms.Color TextColor" />
+      <MemberType>Property</MemberType>
+      <AssemblyInfo>
+        <AssemblyVersion>2.0.0.0</AssemblyVersion>
+      </AssemblyInfo>
+      <ReturnValue>
+        <ReturnType>Xamarin.Forms.Color</ReturnType>
+      </ReturnValue>
+      <Docs>
+        <summary>To be added.</summary>
+        <value>To be added.</value>
+        <remarks>To be added.</remarks>
+      </Docs>
+    </Member>
+    <Member MemberName="TextColorProperty">
+      <MemberSignature Language="C#" Value="public static readonly Xamarin.Forms.BindableProperty TextColorProperty;" />
+      <MemberSignature Language="ILAsm" Value=".field public static initonly class Xamarin.Forms.BindableProperty TextColorProperty" />
+      <MemberType>Field</MemberType>
+      <AssemblyInfo>
+        <AssemblyVersion>2.0.0.0</AssemblyVersion>
+      </AssemblyInfo>
+      <ReturnValue>
+        <ReturnType>Xamarin.Forms.BindableProperty</ReturnType>
+      </ReturnValue>
+      <Docs>
+        <summary>To be added.</summary>
+        <remarks>To be added.</remarks>
+      </Docs>
+    </Member>
   </Members>
 </Type>
diff --git a/docs/Xamarin.Forms.Core/Xamarin.Forms/Picker.xml b/docs/Xamarin.Forms.Core/Xamarin.Forms/Picker.xml
index 87d63758..6daf123a 100644
--- a/docs/Xamarin.Forms.Core/Xamarin.Forms/Picker.xml
+++ b/docs/Xamarin.Forms.Core/Xamarin.Forms/Picker.xml
@@ -246,6 +246,37 @@ namespace FormsGallery
         </remarks>
       </Docs>
     </Member>
+    <Member MemberName="TextColor">
+      <MemberSignature Language="C#" Value="public Xamarin.Forms.Color TextColor { get; set; }" />
+      <MemberSignature Language="ILAsm" Value=".property instance valuetype Xamarin.Forms.Color TextColor" />
+      <MemberType>Property</MemberType>
+      <AssemblyInfo>
+        <AssemblyVersion>2.0.0.0</AssemblyVersion>
+      </AssemblyInfo>
+      <ReturnValue>
+        <ReturnType>Xamarin.Forms.Color</ReturnType>
+      </ReturnValue>
+      <Docs>
+        <summary>To be added.</summary>
+        <value>To be added.</value>
+        <remarks>To be added.</remarks>
+      </Docs>
+    </Member>
+    <Member MemberName="TextColorProperty">
+      <MemberSignature Language="C#" Value="public static readonly Xamarin.Forms.BindableProperty TextColorProperty;" />
+      <MemberSignature Language="ILAsm" Value=".field public static initonly class Xamarin.Forms.BindableProperty TextColorProperty" />
+      <MemberType>Field</MemberType>
+      <AssemblyInfo>
+        <AssemblyVersion>2.0.0.0</AssemblyVersion>
+      </AssemblyInfo>
+      <ReturnValue>
+        <ReturnType>Xamarin.Forms.BindableProperty</ReturnType>
+      </ReturnValue>
+      <Docs>
+        <summary>To be added.</summary>
+        <remarks>To be added.</remarks>
+      </Docs>
+    </Member>
     <Member MemberName="Title">
       <MemberSignature Language="C#" Value="public string Title { get; set; }" />
       <MemberSignature Language="ILAsm" Value=".property instance string Title" />
diff --git a/docs/Xamarin.Forms.Core/Xamarin.Forms/TimePicker.xml b/docs/Xamarin.Forms.Core/Xamarin.Forms/TimePicker.xml
index af19bfd8..1c5119f1 100644
--- a/docs/Xamarin.Forms.Core/Xamarin.Forms/TimePicker.xml
+++ b/docs/Xamarin.Forms.Core/Xamarin.Forms/TimePicker.xml
@@ -102,6 +102,37 @@ var beeroclock = new TimePicker () { Time = new TimeSpan (17,0,0) };
         </remarks>
       </Docs>
     </Member>
+    <Member MemberName="TextColor">
+      <MemberSignature Language="C#" Value="public Xamarin.Forms.Color TextColor { get; set; }" />
+      <MemberSignature Language="ILAsm" Value=".property instance valuetype Xamarin.Forms.Color TextColor" />
+      <MemberType>Property</MemberType>
+      <AssemblyInfo>
+        <AssemblyVersion>2.0.0.0</AssemblyVersion>
+      </AssemblyInfo>
+      <ReturnValue>
+        <ReturnType>Xamarin.Forms.Color</ReturnType>
+      </ReturnValue>
+      <Docs>
+        <summary>To be added.</summary>
+        <value>To be added.</value>
+        <remarks>To be added.</remarks>
+      </Docs>
+    </Member>
+    <Member MemberName="TextColorProperty">
+      <MemberSignature Language="C#" Value="public static readonly Xamarin.Forms.BindableProperty TextColorProperty;" />
+      <MemberSignature Language="ILAsm" Value=".field public static initonly class Xamarin.Forms.BindableProperty TextColorProperty" />
+      <MemberType>Field</MemberType>
+      <AssemblyInfo>
+        <AssemblyVersion>2.0.0.0</AssemblyVersion>
+      </AssemblyInfo>
+      <ReturnValue>
+        <ReturnType>Xamarin.Forms.BindableProperty</ReturnType>
+      </ReturnValue>
+      <Docs>
+        <summary>To be added.</summary>
+        <remarks>To be added.</remarks>
+      </Docs>
+    </Member>
     <Member MemberName="Time">
       <MemberSignature Language="C#" Value="public TimeSpan Time { get; set; }" />
       <MemberSignature Language="ILAsm" Value=".property instance valuetype System.TimeSpan Time" />