Improve Android sample

Author: ermau

samples/Xamarin.Auth.Sample.Android/MainActivity.cs

@@ -23,38 +23,45 @@ void LoginToFacebook (bool allowCancel)
 			// If authorization succeeds or is canceled, .Completed will be fired.
 			auth.Completed += (s, ee) => {
 				if (!ee.IsAuthenticated) {
-					this.facebookStatus.Text = "Not Authenticated";
+					var builder = new AlertDialog.Builder (this);
+					builder.SetMessage ("Not Authenticated");
+					builder.SetPositiveButton ("Ok", (o, e) => { });
+					builder.Create().Show();
 					return;
 				}
 
 				// Now that we're logged in, make a OAuth2 request to get the user's info.
 				var request = new OAuth2Request ("GET", new Uri ("https://graph.facebook.com/me"), null, ee.Account);
 				request.GetResponseAsync().ContinueWith (t => {
-					if (t.IsFaulted)
-						this.facebookStatus.Text = "Error: " + t.Exception.InnerException.Message;
-					else if (t.IsCanceled)
-						this.facebookStatus.Text = "Canceled";
-					else
-					{
+					var builder = new AlertDialog.Builder (this);
+					if (t.IsFaulted) {
+						builder.SetTitle ("Error");
+						builder.SetMessage (t.Exception.Flatten().InnerException.ToString());
+					} else if (t.IsCanceled)
+						builder.SetTitle ("Task Canceled");
+					else {
 						var obj = JsonValue.Parse (t.Result.GetResponseText());
-						this.facebookStatus.Text = "Logged in as " + obj["name"];
+
+						builder.SetTitle ("Logged in");
+						builder.SetMessage ("Name: " + obj["name"]);
 					}
-				}, uiScheduler);
+
+					builder.SetPositiveButton ("Ok", (o, e) => { });
+					builder.Create().Show();
+				}, UIScheduler);
 			};
 
 			var intent = auth.GetUI (this);
-			StartActivityForResult (intent, 42);
+			StartActivity (intent);
 		}
 
-		private TextView facebookStatus;
-		private readonly TaskScheduler uiScheduler = TaskScheduler.FromCurrentSynchronizationContext();
+		private static readonly TaskScheduler UIScheduler = TaskScheduler.FromCurrentSynchronizationContext();
 
 		protected override void OnCreate (Bundle bundle)
 		{
 			base.OnCreate (bundle);
 			SetContentView (Resource.Layout.Main);
 
-			this.facebookStatus = FindViewById<TextView> (Resource.Id.FacebookTextView);
 			var facebook = FindViewById<Button> (Resource.Id.FacebookButton);			
 			facebook.Click += delegate { LoginToFacebook(true);};
 

samples/Xamarin.Auth.Sample.Android/Properties/AndroidManifest.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="Xamarin.Auth.Sample.Android">
-	<uses-sdk android:minSdkVersion="7" />
-	<application android:label="Xamarin.Auth Sample (Android)">
-	</application>
+	<uses-sdk android:minSdkVersion="8" />
+	<application android:label="Xamarin.Auth Sample (Android)"></application>
 	<uses-permission android:name="android.permission.INTERNET" />
 </manifest>

samples/Xamarin.Auth.Sample.Android/Resources/Resource.designer.cs

@@ -13,9 +13,4 @@
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:id="@+id/FacebookButtonNoCancel" />
-    <TextView
-        android:textAppearance="?android:attr/textAppearanceMedium"
-        android:layout_width="fill_parent"
-        android:layout_height="wrap_content"
-        android:id="@+id/FacebookTextView" />
 </LinearLayout>

samples/Xamarin.Auth.Sample.Android/Resources/layout/Main.axml

@@ -15,7 +15,7 @@
     <AndroidApplication>True</AndroidApplication>
     <AndroidResgenFile>Resources\Resource.designer.cs</AndroidResgenFile>
     <AssemblyName>Xamarin.Auth.Sample.Android</AssemblyName>
-    <TargetFrameworkVersion>v4.0.3</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v2.2</TargetFrameworkVersion>
     <AndroidManifest>Properties\AndroidManifest.xml</AndroidManifest>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">