[iOS] Copy over ProgressLabel from Xamarin.Auth

It was being linked, but this fails with a static type registrar as the
full type name is the same. Switched namespace from Xamarin.Controls to
Xamarin.Social.

Author: ermau

src/Xamarin.Social.iOS/ProgressLabel.cs

@@ -0,0 +1,48 @@
+using System;
+using MonoTouch.UIKit;
+using System.Drawing;
+
+namespace Xamarin.Social
+{
+	internal class ProgressLabel : UIView
+	{
+		UIActivityIndicatorView activity;
+		
+		public ProgressLabel (string text)
+			: base (new RectangleF (0, 0, 200, 44))
+		{
+			BackgroundColor = UIColor.Clear;
+			
+			activity = new UIActivityIndicatorView (UIActivityIndicatorViewStyle.White) {
+				Frame = new RectangleF (0, 11.5f, 21, 21),
+				HidesWhenStopped = false,
+				Hidden = false,
+			};
+			AddSubview (activity);
+			
+			var label = new UILabel () {
+				Text = text,
+				TextColor = UIColor.White,
+				Font = UIFont.BoldSystemFontOfSize (20),
+				BackgroundColor = UIColor.Clear,
+				Frame = new RectangleF (25, 0, Frame.Width - 25, 44),
+			};
+			AddSubview (label);
+			
+			var f = Frame;
+			f.Width = label.Frame.X + label.StringSize (label.Text, label.Font).Width;
+			Frame = f;
+		}
+		
+		public void StartAnimating ()
+		{
+			activity.StartAnimating ();
+		}
+		
+		public void StopAnimating ()
+		{
+			activity.StopAnimating ();
+		}
+	}
+}
+

src/Xamarin.Social.iOS/ShareViewController.cs

@@ -23,7 +23,6 @@
 using MonoTouch.Foundation;
 using MonoTouch.UIKit;
 using Xamarin.Auth;
-using Xamarin.Controls;
 using Xamarin.Utilities.iOS;
 
 namespace Xamarin.Social

src/Xamarin.Social.iOS/Xamarin.Social.iOS.csproj

@@ -82,14 +82,12 @@
     <Compile Include="..\Xamarin.Social\OAuth2Service.cs">
       <Link>OAuth2Service.cs</Link>
     </Compile>
+    <Compile Include="ProgressLabel.cs" />
     <Compile Include="ShareViewController.cs" />
     <Compile Include="..\Xamarin.Social\Services\AppDotNetService.cs">
       <Link>Services\AppDotNetService.cs</Link>
     </Compile>
     <Compile Include="Services\Twitter5Service.cs" />
-    <Compile Include="..\..\Xamarin.Auth\src\Xamarin.Auth.iOS\ProgressLabel.cs">
-      <Link>ProgressLabel.cs</Link>
-    </Compile>
     <Compile Include="..\..\Xamarin.Auth\src\Xamarin.Auth.iOS\UIViewControllerEx.cs">
       <Link>UIViewControllerEx.cs</Link>
     </Compile>