Fix build

example-client/build.gradle

@@ -45,7 +45,8 @@ android {
 }
 
 dependencies {
-    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.recyclerview:recyclerview:1.0.0'
     implementation 'org.java-websocket:Java-WebSocket:1.3.6'
     implementation 'com.android.support:recyclerview-v7:28.0.0'
 

example-client/gradle.properties

@@ -0,0 +1,2 @@
+android.useAndroidX=true
+android.enableJetifier=true

example-client/src/main/AndroidManifest.xml

@@ -1,20 +1,21 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          package="ua.naiksoftware.stompclientexample">
+    xmlns:tools="http://schemas.android.com/tools"
+    package="ua.naiksoftware.stompclientexample">
 
-    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.INTERNET" />
 
     <application
-            android:allowBackup="true"
-            android:icon="@mipmap/ic_launcher"
-            android:label="@string/app_name"
-            android:supportsRtl="true"
-            android:theme="@style/AppTheme">
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
         <activity android:name="ua.naiksoftware.stompclientexample.MainActivity">
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
+                <action android:name="android.intent.action.MAIN" />
 
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>

example-client/src/main/java/ua/naiksoftware/stompclientexample/MainActivity.java

@@ -1,9 +1,6 @@
 package ua.naiksoftware.stompclientexample;
 
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.util.Log;
 import android.view.View;
 import android.widget.Toast;
@@ -17,6 +14,9 @@
 import java.util.List;
 import java.util.Locale;
 
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
 import io.reactivex.CompletableTransformer;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.CompositeDisposable;
@@ -46,7 +46,7 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-        mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);
+        mRecyclerView = findViewById(R.id.recycler_view);
         mAdapter = new SimpleAdapter(mDataSet);
         mAdapter.setHasStableIds(true);
         mRecyclerView.setAdapter(mAdapter);

example-client/src/main/java/ua/naiksoftware/stompclientexample/SimpleAdapter.java

@@ -1,13 +1,14 @@
 package ua.naiksoftware.stompclientexample;
 
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
 
 import java.util.List;
 
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * Created by Naik on 24.02.17.
  */

example-client/src/main/res/layout/activity_main.xml

@@ -62,7 +62,7 @@
 
     </LinearLayout>
 
-    <android.support.v7.widget.RecyclerView
+    <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/recycler_view"
         android:layout_width="match_parent"
         android:layout_height="match_parent"