Update Android Sample for Preview 3 (#53)

Author: mikaelm12

AndroidJavaClient/app/build.gradle

@@ -4,7 +4,7 @@ android {
     compileSdkVersion 28
     defaultConfig {
         applicationId "com.microsoft.aspnet.signalr.samples.androidjavaclient"
-        minSdkVersion 24
+        minSdkVersion 26
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
@@ -29,5 +29,6 @@ dependencies {
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
-    implementation 'com.microsoft.aspnet:signalr:0.1.0-preview1-35029'
+    implementation group: 'com.microsoft.signalr', name: 'signalr', version: '1.0.0-preview3-35501'
+    implementation group: 'org.slf4j', name: 'slf4j-android', version: '1.7.7'
 }

AndroidJavaClient/app/src/main/java/com/microsoft/aspnet/signalr/samples/androidjavaclient/MainActivity.java

@@ -1,6 +1,7 @@
 package com.microsoft.aspnet.signalr.samples.androidjavaclient;
 
 
+import android.os.AsyncTask;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.view.View;
@@ -10,10 +11,8 @@
 import android.widget.ListView;
 import android.widget.TextView;
 
-import com.microsoft.aspnet.signalr.Action;
-import com.microsoft.aspnet.signalr.HubConnection;
-import com.microsoft.aspnet.signalr.HubConnectionBuilder;
-import com.microsoft.aspnet.signalr.LogLevel;
+import com.microsoft.signalr.HubConnection;
+import com.microsoft.signalr.HubConnectionBuilder;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -24,7 +23,7 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-        HubConnection hubConnection = new HubConnection("Your URL Here");
+        HubConnection hubConnection = HubConnectionBuilder.create("YOUR URL HERE").build();
         TextView textView = (TextView)findViewById(R.id.tvMain);
         ListView listView = (ListView)findViewById(R.id.lvMessages);
         Button sendButton = (Button)findViewById(R.id.bSend);
@@ -58,11 +57,21 @@ public void onClick(View view) {
             }
         });
 
-        try {
-            hubConnection.start();
-        } catch (Exception e) {
-            e.printStackTrace();
-            textView.setText("There was an error: " + e.getMessage());
+        new HubConnectionTask().execute(hubConnection);
+    }
+
+    class HubConnectionTask extends AsyncTask<HubConnection, Void, Void>{
+
+        @Override
+        protected void onPreExecute() {
+            super.onPreExecute();
+        }
+
+        @Override
+        protected Void doInBackground(HubConnection... hubConnections) {
+            HubConnection hubConnection = hubConnections[0];
+            hubConnection.start().blockingAwait();
+            return null;
         }
     }
-}
+}