From 705843c041f24ce5b2737fc15dfd45c34f26cf82 Mon Sep 17 00:00:00 2001
From: Jan Tattermusch <jtattermusch@google.com>
Date: Wed, 25 Jul 2018 17:30:19 +0200
Subject: experimental helloworld client for android

---
 .../csharp/HelloworldXamarin/Droid/MainActivity.cs | 24 ++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

(limited to 'examples/csharp')

diff --git a/examples/csharp/HelloworldXamarin/Droid/MainActivity.cs b/examples/csharp/HelloworldXamarin/Droid/MainActivity.cs
index 20982422f2..2c158e9d7c 100644
--- a/examples/csharp/HelloworldXamarin/Droid/MainActivity.cs
+++ b/examples/csharp/HelloworldXamarin/Droid/MainActivity.cs
@@ -1,13 +1,15 @@
 using Android.App;
 using Android.Widget;
 using Android.OS;
+using Grpc.Core;
+using Helloworld;
 
 namespace HelloworldXamarin.Droid
 {
     [Activity(Label = "HelloworldXamarin", MainLauncher = true, Icon = "@mipmap/icon")]
     public class MainActivity : Activity
     {
-        int count = 1;
+        //int count = 1;
 
         protected override void OnCreate(Bundle savedInstanceState)
         {
@@ -20,8 +22,26 @@ namespace HelloworldXamarin.Droid
             // and attach an event to it
             Button button = FindViewById<Button>(Resource.Id.myButton);
 
-            button.Click += delegate { button.Text = $"{count++} clicks!"; };
+            button.Click += delegate { SayHello(button); };
         }
+
+            private void SayHello(Button button)
+            {
+
+              // use loopback on host machine: https://developer.android.com/studio/run/emulator-networking
+              Channel channel = new Channel("10.0.2.2:50051", ChannelCredentials.Insecure);
+
+              var client = new Greeter.GreeterClient(channel);
+              string user = "Xamarin";
+
+              var reply = client.SayHello(new HelloRequest { Name = user });
+
+              button.Text = "Greeting: " + reply.Message;
+
+              channel.ShutdownAsync().Wait();
+            }
     }
+
+    
 }
 
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