adding albums list, photos list and todos checkbox

app/build.gradle

@@ -3,12 +3,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 26
+    compileSdkVersion 25
     buildToolsVersion "25.0.2"
     defaultConfig {
         applicationId "com.codingblocks.restapiretrofitjson"
         minSdkVersion 16
-        targetSdkVersion 26
+        targetSdkVersion 25
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -27,13 +27,14 @@ dependencies {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
     compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
-    compile 'com.android.support:appcompat-v7:26.+'
-    compile 'com.android.support:recyclerview-v7:26.+'
-    compile 'com.android.support:cardview-v7:26.+'
-    compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha8'
+    compile 'com.android.support:appcompat-v7:25.3.1'
+    compile 'com.android.support:recyclerview-v7:25.3.1'
+    compile 'com.android.support:cardview-v7:25.3.1'
     compile 'com.squareup.retrofit2:retrofit:2.3.0'
     compile 'com.squareup.retrofit2:converter-gson:2.3.0'
+    compile 'com.android.support.constraint:constraint-layout:1.0.2'
     testCompile 'junit:junit:4.12'
+    compile 'com.squareup.picasso:picasso:2.5.2'
 }
 repositories {
     mavenCentral()

app/src/main/AndroidManifest.xml

@@ -21,7 +21,9 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-        <activity android:name=".activities.TodosActivity"></activity>
+        <activity android:name=".activities.TodosActivity" />
+        <activity android:name=".activities.AlbumsActivity" />
+        <activity android:name=".activities.PhotosActivity"></activity>
     </application>
 
 </manifest>

app/src/main/java/com/codingblocks/restapiretrofitjson/MainActivity.kt

@@ -3,6 +3,7 @@ package com.codingblocks.restapiretrofitjson
 import android.content.Intent
 import android.support.v7.app.AppCompatActivity
 import android.os.Bundle
+import com.codingblocks.restapiretrofitjson.activities.AlbumsActivity
 import com.codingblocks.restapiretrofitjson.activities.PostsActivity
 import com.codingblocks.restapiretrofitjson.activities.TodosActivity
 import com.codingblocks.restapiretrofitjson.activities.UsersActivity
@@ -27,6 +28,8 @@ class MainActivity : AppCompatActivity() {
             startActivity(Intent(this@MainActivity, TodosActivity::class.java))
         })
 
-
+        btnAlbums.setOnClickListener({
+            startActivity(Intent(this@MainActivity, AlbumsActivity::class.java))
+        })
     }
 }

app/src/main/java/com/codingblocks/restapiretrofitjson/activities/AlbumsActivity.java

@@ -0,0 +1,56 @@
+package com.codingblocks.restapiretrofitjson.activities;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+
+import com.codingblocks.restapiretrofitjson.R;
+import com.codingblocks.restapiretrofitjson.adapters.AlbumAdapter;
+import com.codingblocks.restapiretrofitjson.api.API;
+import com.codingblocks.restapiretrofitjson.interfaces.OnItemClickListener;
+import com.codingblocks.restapiretrofitjson.models.Album;
+
+import java.util.ArrayList;
+
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+
+public class AlbumsActivity extends AppCompatActivity {
+    AlbumAdapter albumAdapter;
+    RecyclerView rvAlbumsList;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_albums);
+        rvAlbumsList = (RecyclerView) findViewById(R.id.rvAlbumsList);
+        rvAlbumsList.setLayoutManager(new LinearLayoutManager(this));
+        albumAdapter = new AlbumAdapter(this, new ArrayList<Album>());
+        rvAlbumsList.setAdapter(albumAdapter);
+        albumAdapter.setOnItemClickListener(new OnItemClickListener() {
+            @Override
+            public void onItemClick(int itemId, View view) {
+                Intent i = new Intent(AlbumsActivity.this, PhotosActivity.class);
+                i.putExtra("id", itemId);
+                startActivity(i);
+            }
+        });
+
+
+        API.getInstance().getAlbumsAPI().getAlbums().enqueue(new Callback<ArrayList<Album>>() {
+            @Override
+            public void onResponse(Call<ArrayList<Album>> call, Response<ArrayList<Album>> response) {
+                albumAdapter.updateAlbums(response.body());
+            }
+
+            @Override
+            public void onFailure(Call<ArrayList<Album>> call, Throwable t) {
+
+            }
+        });
+    }
+}

app/src/main/java/com/codingblocks/restapiretrofitjson/activities/PhotosActivity.java

@@ -0,0 +1,53 @@
+package com.codingblocks.restapiretrofitjson.activities;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+
+import com.codingblocks.restapiretrofitjson.R;
+import com.codingblocks.restapiretrofitjson.adapters.PhotoAdapter;
+import com.codingblocks.restapiretrofitjson.api.API;
+import com.codingblocks.restapiretrofitjson.api.PhotosAPI;
+import com.codingblocks.restapiretrofitjson.models.Photo;
+
+import java.util.ArrayList;
+
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+
+public class PhotosActivity extends AppCompatActivity {
+    PhotoAdapter photoAdapter;
+    RecyclerView rvPhotosList;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_photos);
+        rvPhotosList = (RecyclerView) findViewById(R.id.rvPhotosList);
+        rvPhotosList.setLayoutManager(new LinearLayoutManager(this));
+        photoAdapter = new PhotoAdapter(this, new ArrayList<Photo>());
+        rvPhotosList.setAdapter(photoAdapter);
+
+        PhotosAPI photosAPI = API.getInstance().getPhotosAPI();
+        Callback<ArrayList<Photo>> postCallback = new Callback<ArrayList<Photo>>() {
+            @Override
+            public void onResponse(Call<ArrayList<Photo>> call, Response<ArrayList<Photo>> response) {
+                photoAdapter.updatePhotos(response.body());
+            }
+
+            @Override
+            public void onFailure(Call<ArrayList<Photo>> call, Throwable t) {
+
+            }
+        };
+        int useridreceived = getIntent().getIntExtra("id", -1);
+        if (useridreceived != -1) {
+            photosAPI.getPhotosById(useridreceived).enqueue(postCallback);
+        } else {
+            photosAPI.getPhotos().enqueue(postCallback);
+        }
+
+    }
+}

app/src/main/java/com/codingblocks/restapiretrofitjson/adapters/AlbumAdapter.java

@@ -0,0 +1,78 @@
+package com.codingblocks.restapiretrofitjson.adapters;
+
+import android.content.Context;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.codingblocks.restapiretrofitjson.R;
+import com.codingblocks.restapiretrofitjson.interfaces.OnItemClickListener;
+import com.codingblocks.restapiretrofitjson.models.Album;
+
+import java.util.ArrayList;
+
+/**
+ * Created by User on 06-07-2017.
+ */
+public class AlbumAdapter
+        extends RecyclerView.Adapter<AlbumAdapter.AlbumViewHolder>{
+    private Context context;
+    private ArrayList<Album> albums;
+    private OnItemClickListener onItemClickListener;
+
+    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
+        this.onItemClickListener = onItemClickListener;
+    }
+
+    public AlbumAdapter(Context context, ArrayList<Album> albums) {
+        this.context = context;
+        this.albums = albums;
+    }
+    public void updateAlbums(ArrayList<Album> newalbumlist){
+        this.albums = newalbumlist;
+        notifyDataSetChanged();
+    }
+
+    @Override
+    public AlbumViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        LayoutInflater li = (LayoutInflater) context.getSystemService(
+                Context.LAYOUT_INFLATER_SERVICE);
+        View itemview = li.inflate(R.layout.list_item_album, parent, false);
+        return new AlbumViewHolder(itemview);
+
+    }
+
+    @Override
+    public void onBindViewHolder(AlbumViewHolder holder, int position) {
+        final Album thisalbum = albums.get(position);
+        holder.albumtitle.setText(thisalbum.getTitle());
+        holder.thisView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                if (onItemClickListener != null) {
+                    onItemClickListener.onItemClick(thisalbum.getId(), view);
+                }
+            }
+        });
+
+    }
+
+    @Override
+    public int getItemCount() {
+        return albums.size();
+    }
+
+    class AlbumViewHolder extends RecyclerView.ViewHolder{
+        TextView albumtitle;
+        View thisView;
+        public AlbumViewHolder(View itemview){
+            super(itemview);
+            thisView = itemview;
+            albumtitle = (TextView) itemview.findViewById(R.id.albumtitle);
+        }
+
+    }
+}
+

app/src/main/java/com/codingblocks/restapiretrofitjson/adapters/PhotoAdapter.java

@@ -0,0 +1,86 @@
+package com.codingblocks.restapiretrofitjson.adapters;
+
+import android.content.Context;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.codingblocks.restapiretrofitjson.R;
+import com.codingblocks.restapiretrofitjson.interfaces.OnItemClickListener;
+import com.codingblocks.restapiretrofitjson.models.Photo;
+import com.squareup.picasso.Picasso;
+
+import java.util.ArrayList;
+
+import static com.codingblocks.restapiretrofitjson.R.id.photothumbnail;
+
+/**
+ * Created by User on 06-07-2017.
+ */
+
+public class PhotoAdapter
+        extends RecyclerView.Adapter<PhotoAdapter.PhotoViewHolder>{
+    private Context context;
+    private ArrayList<Photo> photos;
+    private OnItemClickListener onItemClickListener;
+
+    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {
+        this.onItemClickListener = onItemClickListener;
+    }
+
+    public PhotoAdapter(Context context, ArrayList<Photo> photos) {
+        this.context = context;
+        this.photos = photos;
+    }
+    public void updatePhotos(ArrayList<Photo> newphotolist){
+        this.photos = newphotolist;
+        notifyDataSetChanged();
+    }
+
+    @Override
+    public PhotoViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        LayoutInflater li = (LayoutInflater) context.getSystemService(
+                Context.LAYOUT_INFLATER_SERVICE);
+        View itemview = li.inflate(R.layout.list_item_photo, parent, false);
+        return new PhotoViewHolder(itemview);
+
+    }
+
+    @Override
+    public void onBindViewHolder(PhotoViewHolder holder, int position) {
+        final Photo thisphoto = photos.get(position);
+        holder.phototitle.setText(thisphoto.getTitle());
+        Picasso.with(context).load(thisphoto.getThumbnailUrl()).into(holder.photothumbnail);
+        holder.thisView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                if (onItemClickListener != null) {
+                    onItemClickListener.onItemClick(thisphoto.getId(), view);
+                }
+            }
+        });
+
+    }
+
+    @Override
+    public int getItemCount() {
+        return photos.size();
+    }
+
+    class PhotoViewHolder extends RecyclerView.ViewHolder{
+        TextView phototitle;
+        ImageView photothumbnail;
+        View thisView;
+        public PhotoViewHolder(View itemview){
+            super(itemview);
+            thisView = itemview;
+            phototitle = (TextView) itemview.findViewById(R.id.phototitle);
+            photothumbnail = (ImageView) itemview.findViewById(R.id.photothumbnail);
+        }
+
+    }
+}
+

app/src/main/java/com/codingblocks/restapiretrofitjson/adapters/TodoAdapter.kt

@@ -1,10 +1,13 @@
 package com.codingblocks.restapiretrofitjson.adapters
 
+import android.content.Context
 import android.support.v7.widget.RecyclerView
 import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.CheckBox
+import android.widget.TextView
 import com.codingblocks.restapiretrofitjson.R
 import com.codingblocks.restapiretrofitjson.models.Todo
 
@@ -22,9 +25,12 @@ public class TodoAdapter (
         notifyDataSetChanged()
     }
 
-    override fun onBindViewHolder(holder: TodoViewHolder?, position: Int) {
+    override fun onBindViewHolder(holder: TodoViewHolder, position: Int) {
 
-        holder?.bindTodo(todos[position])
+        val (_, _, title, completed) = todos!![position]
+
+        holder.tvTodoTitle.text = title
+        holder.todocheck.isChecked = completed
 
     }
 
@@ -43,11 +49,16 @@ public class TodoAdapter (
     }
 
 
-    inner class TodoViewHolder(itemView: View?)
+    inner class TodoViewHolder(itemView: View)
         : RecyclerView.ViewHolder(itemView) {
+        var todocheck: CheckBox
+        var tvTodoTitle: TextView
+
+        init {
+
+            tvTodoTitle = itemView.findViewById(R.id.tvTodoTitle) as TextView
+            todocheck = itemView.findViewById(R.id.todocheck) as CheckBox
 
-        fun bindTodo(todo: Todo) {
-            itemView.tvTodoTitle.text = todo.title;
         }
     }
 }