support for PagedListAdapter and migrate to androidX

build.gradle

@@ -6,9 +6,13 @@ buildscript {
         maven {
             url "https://jitpack.io"
         }
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.android.tools.build:gradle:4.2.2'
         classpath 'com.github.dcendents:android-maven-plugin:1.2'
 
         // NOTE: Do not place your application dependencies here; they belong
@@ -22,5 +26,9 @@ allprojects {
         maven {
             url "https://jitpack.io"
         }
+        maven {
+            url 'https://maven.google.com/'
+            name 'Google'
+        }
     }
 }

demo/build.gradle

@@ -5,7 +5,7 @@ repositories {
 }
 
 android {
-    compileSdkVersion Integer.parseInt(project.ANDROID_BUILD_SDK_VERSION)
+    compileSdkVersion 28
     buildToolsVersion project.ANDROID_BUILD_TOOLS_VERSION
     defaultConfig {
         minSdkVersion Integer.parseInt(project.ANDROID_BUILD_MIN_SDK_VERSION)
@@ -25,11 +25,29 @@ android {
 }
 
 dependencies {
-    compile project(":library")
-    compile 'com.android.support:recyclerview-v7:25.1.1'
-    compile 'com.daimajia.easing:library:1.0.0@aar'
-    compile 'com.daimajia.androidanimations:library:1.1.2@aar'
-    compile 'com.nineoldandroids:library:2.4.0'
+    def glide_version = "4.3.1"
+    def view_model_version = "1.1.0"
+    def support_version = "27.1.0"
+
+    implementation project(":library")
+    implementation "com.android.support:appcompat-v7:$support_version"
+    implementation 'androidx.recyclerview:recyclerview:1.0.0'
+    implementation 'com.daimajia.easing:library:1.0.0@aar'
+    implementation 'com.daimajia.androidanimations:library:1.1.2@aar'
+    implementation 'com.nineoldandroids:library:2.4.0'
     // This dude gave a shoutout to you (daimajia) on his github page:
-    compile 'jp.wasabeef:recyclerview-animators:1.0.3@aar'
+    implementation 'jp.wasabeef:recyclerview-animators:1.0.3@aar'
+
+    //adding glide
+    implementation "com.github.bumptech.glide:glide:$glide_version"
+    annotationProcessor "com.github.bumptech.glide:compiler:$glide_version"
+
+    //adding retrofit
+    implementation 'com.squareup.retrofit2:retrofit:2.4.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
+
+    //adding view model
+    implementation "android.arch.lifecycle:extensions:$view_model_version"
+    implementation "android.arch.lifecycle:viewmodel:$view_model_version"
+    implementation 'androidx.paging:paging-runtime:2.1.2'
 }

demo/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.daimajia.swipedemo">
 
+    <uses-permission android:name="android.permission.INTERNET" />
     <uses-sdk tools:overrideLibrary="org.lucasr.twowayview, org.lucasr.twowayview.widget, jp.wasabeef.recyclerview" />
 
     <application
@@ -22,6 +23,7 @@
         <activity android:name="com.daimajia.swipedemo.ListViewExample" />
         <activity android:name="com.daimajia.swipedemo.GridViewExample" />
         <activity android:name="com.daimajia.swipedemo.RecyclerViewExample" />
+        <activity android:name="com.daimajia.swipedemo.RecyclerViewPagedExample" />
         <activity android:name=".NestedExample" />
     </application>
 

demo/src/main/java/com/daimajia/swipedemo/GridViewExample.java

@@ -7,10 +7,12 @@
 import android.widget.AdapterView;
 import android.widget.GridView;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import com.daimajia.swipe.util.Attributes;
 import com.daimajia.swipedemo.adapter.GridViewAdapter;
 
-public class GridViewExample extends Activity{
+public class GridViewExample extends AppCompatActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {

demo/src/main/java/com/daimajia/swipedemo/ListViewExample.java

@@ -16,11 +16,13 @@
 import android.widget.ListView;
 import android.widget.Toast;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import com.daimajia.swipe.SwipeLayout;
 import com.daimajia.swipe.util.Attributes;
 import com.daimajia.swipedemo.adapter.ListViewAdapter;
 
-public class ListViewExample extends Activity {
+public class ListViewExample extends AppCompatActivity {
 
     private ListView mListView;
     private ListViewAdapter mAdapter;

demo/src/main/java/com/daimajia/swipedemo/MyActivity.java

@@ -10,10 +10,12 @@
 import android.view.View;
 import android.widget.Toast;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import com.daimajia.swipe.SwipeLayout;
 import com.nineoldandroids.view.ViewHelper;
 
-public class MyActivity extends Activity {
+public class MyActivity extends AppCompatActivity {
 
     private SwipeLayout sample1, sample2, sample3;
 
@@ -183,6 +185,8 @@ public boolean onOptionsItemSelected(MenuItem item) {
             return true;
         } else if (id == R.id.action_recycler) {
             startActivity(new Intent(this, RecyclerViewExample.class));
+        } else if (id == R.id.action_recycler_paged) {
+            startActivity(new Intent(this, RecyclerViewPagedExample.class));
         }
         return super.onOptionsItemSelected(item);
     }

demo/src/main/java/com/daimajia/swipedemo/NestedExample.java

@@ -5,9 +5,11 @@
 import android.view.View;
 import android.widget.Toast;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 import com.daimajia.swipe.SwipeLayout;
 
-public class NestedExample extends Activity{
+public class NestedExample extends AppCompatActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {

demo/src/main/java/com/daimajia/swipedemo/RecyclerViewExample.java

@@ -5,12 +5,14 @@
 import android.content.Intent;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.daimajia.swipe.util.Attributes;
 import com.daimajia.swipedemo.adapter.RecyclerViewAdapter;
 import com.daimajia.swipedemo.adapter.util.DividerItemDecoration;
@@ -20,7 +22,7 @@
 
 import jp.wasabeef.recyclerview.animators.FadeInLeftAnimator;
 
-public class RecyclerViewExample extends Activity {
+public class RecyclerViewExample extends AppCompatActivity {
 
     /**
      * RecyclerView: The new recycler view replaces the list view. Its more modular and therefore we

demo/src/main/java/com/daimajia/swipedemo/RecyclerViewPagedExample.java

@@ -0,0 +1,105 @@
+package com.daimajia.swipedemo;
+
+import android.app.ActionBar;
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.lifecycle.LifecycleOwner;
+import androidx.lifecycle.Observer;
+import androidx.lifecycle.ViewModelProviders;
+import androidx.paging.PagedList;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.daimajia.swipedemo.adapter.PagedItemAdapter;
+import com.daimajia.swipedemo.models.Item;
+import com.daimajia.swipedemo.retrofit.ItemViewModel;
+
+import java.util.ArrayList;
+
+public class RecyclerViewPagedExample extends AppCompatActivity {
+
+    /**
+     * RecyclerView: The new recycler view replaces the list view. Its more modular and therefore we
+     * must implement some of the functionality ourselves and attach it to our recyclerview.
+     * <p/>
+     * 1) Position items on the screen: This is done with LayoutManagers
+     * 2) Animate & Decorate views: This is done with ItemAnimators & ItemDecorators
+     * 3) Handle any touch events apart from scrolling: This is now done in our adapter's ViewHolder
+     */
+
+    private RecyclerView recyclerView;
+    private RecyclerView.Adapter mAdapter;
+
+    private ArrayList<String> mDataSet;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.recyclerview);
+        recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+            ActionBar actionBar = getActionBar();
+            if (actionBar != null) {
+                actionBar.setTitle("RecyclerView");
+            }
+        }
+
+        //setting up recyclerview
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        recyclerView.setHasFixedSize(true);
+
+        //getting our ItemViewModel
+        ItemViewModel itemViewModel = ViewModelProviders.of(this).get(ItemViewModel.class);
+
+        //creating the Adapter
+        final PagedItemAdapter adapter = new PagedItemAdapter(this);
+
+
+        //observing the itemPagedList from view model
+        itemViewModel.itemPagedList.observe(this, new Observer<PagedList<Item>>() {
+            @Override
+            public void onChanged(@Nullable PagedList<Item> items) {
+
+                //in case of any changes
+                //submitting the items to adapter
+                adapter.submitList(items);
+            }
+        });
+
+        //setting the adapter
+        recyclerView.setAdapter(adapter);
+    }
+
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        getMenuInflater().inflate(R.menu.my, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        int id = item.getItemId();
+        if (id == R.id.action_listview) {
+            startActivity(new Intent(this, ListViewExample.class));
+            finish();
+            return true;
+        } else if (id == R.id.action_gridview) {
+            startActivity(new Intent(this, GridViewExample.class));
+            finish();
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+}

demo/src/main/java/com/daimajia/swipedemo/adapter/PagedItemAdapter.java

@@ -0,0 +1,81 @@
+package com.daimajia.swipedemo.adapter;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.DiffUtil;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.bumptech.glide.Glide;
+import com.daimajia.swipe.adapters.PagedListSwipeAdapter;
+import com.daimajia.swipedemo.R;
+import com.daimajia.swipedemo.models.Item;
+
+public class PagedItemAdapter extends PagedListSwipeAdapter<Item, PagedItemAdapter.ItemViewHolder> {
+
+    private Context mCtx;
+
+
+    public PagedItemAdapter(Context mCtx) {
+        super(DIFF_CALLBACK);
+        this.mCtx = mCtx;
+    }
+
+    @NonNull
+    @Override
+    public ItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(mCtx).inflate(R.layout.recyclerview_users, parent, false);
+        return new ItemViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ItemViewHolder holder, int position) {
+        Item item = getItem(position);
+
+        if (item != null) {
+            holder.textView.setText(item.owner.display_name);
+            Glide.with(mCtx)
+                    .load(item.owner.profile_image)
+                    .into(holder.imageView);
+        } else {
+            Toast.makeText(mCtx, "Item is null", Toast.LENGTH_LONG).show();
+        }
+    }
+
+    private static DiffUtil.ItemCallback<Item> DIFF_CALLBACK =
+            new DiffUtil.ItemCallback<Item>() {
+                @Override
+                public boolean areItemsTheSame(Item oldItem, Item newItem) {
+                    return oldItem.question_id == newItem.question_id;
+                }
+
+                @Override
+                public boolean areContentsTheSame(Item oldItem, Item newItem) {
+                    return oldItem.equals(newItem);
+                }
+            };
+
+    @Override
+    public int getSwipeLayoutResourceId(int position) {
+        return R.id.swipe;
+    }
+
+
+    class ItemViewHolder extends RecyclerView.ViewHolder {
+
+        TextView textView;
+        ImageView imageView;
+
+        public ItemViewHolder(View itemView) {
+            super(itemView);
+            textView = itemView.findViewById(R.id.textViewName);
+            imageView = itemView.findViewById(R.id.imageView);
+        }
+    }
+}

demo/src/main/java/com/daimajia/swipedemo/adapter/RecyclerViewAdapter.java

@@ -1,7 +1,6 @@
 package com.daimajia.swipedemo.adapter;
 
 import android.content.Context;
-import android.support.v7.widget.RecyclerView;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -10,6 +9,8 @@
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.daimajia.androidanimations.library.Techniques;
 import com.daimajia.androidanimations.library.YoYo;
 import com.daimajia.swipe.SimpleSwipeListener;
@@ -61,7 +62,7 @@ public SimpleViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
     }
 
     @Override
-    public void onBindViewHolder(final SimpleViewHolder viewHolder, final int position) {
+    public void onBindViewHolder(SimpleViewHolder viewHolder, int position) {
         String item = mDataset.get(position);
         viewHolder.swipeLayout.setShowMode(SwipeLayout.ShowMode.LayDown);
         viewHolder.swipeLayout.addSwipeListener(new SimpleSwipeListener() {