CODING CARDVIEW.txt

DEPENDENCIES

compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:25.1.1'
    compile 'com.android.support:cardview-v7:25.1.1'
    compile 'com.android.support:recyclerview-v7:25.1.1'
    compile 'com.android.support:design:25.1.1'
    //Glide
    compile 'com.github.bumptech.glide:glide:3.7.0'
    testCompile 'junit:junit:4.12'
    compile 'com.google.android.gms:play-services-appindexing:8.4.0'

COLORS

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#303F9F</color>
    <color name="colorAccent">#FF4081</color>
    <color name="viewBg">#f1f5f8</color>
    <color name="album_title">#4c4c4c</color>
</resources>

DIMENS

<resources>
    <dimen name="activity_horizontal_margin">16dp</dimen>
    <dimen name="activity_vertical_margin">16dp</dimen>
    <dimen name="fab_margin">16dp</dimen>
    <dimen name="item_offset">10dp</dimen>
    <dimen name="detail_backdrop_height">250dp</dimen>
    <dimen name="backdrop_title">30dp</dimen>
    <dimen name="backdrop_subtitle">18dp</dimen>
    <dimen name="card_margin">5dp</dimen>
    <dimen name="card_pc_radius">0dp</dimen>
    <dimen name="pc_cover_height">160dp</dimen>
    <dimen name="pc_title_padding">10dp</dimen>
    <dimen name="pc_title">15dp</dimen>
    <dimen name="songs_count_padding_bottom">5dp</dimen>
    <dimen name="songs_count">12dp</dimen>
    <dimen name="ic_pc_overflow_width">20dp</dimen>
    <dimen name="ic_pc_overflow_height">30dp</dimen>
    <dimen name="ic_pc_overflow_margin_top">10dp</dimen>
</resources>

STRINGS

<resources>
    <string name="app_name">Card View</string>
    <string name="action_settings">Settings</string>
    <string name="action_rate">Rate</string>
    <string name="action_share">Share</string>
    <string name="backdrop_title">PC Fantastic</string>
    <string name="backdrop_subtitle">This Season Top 10 PC</string>
</resources>


STYLE

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>


STYLE 21

<resources>>

    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
        <item name="android:statusBarColor">@android:color/transparent</item>
    </style>
</resources>


ACTIVITY_MAIN.XML

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/white"
    android:fitsSystemWindows="true">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="@dimen/detail_backdrop_height"
        android:fitsSystemWindows="true"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginEnd="64dp"
            app:expandedTitleMarginStart="48dp"
            app:expandedTitleTextAppearance="@android:color/transparent"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content">

                <ImageView
                    android:id="@+id/backdrop"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:fitsSystemWindows="true"
                    android:scaleType="centerCrop"
                    app:layout_collapseMode="parallax" />

                <LinearLayout
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_centerInParent="true"
                    android:gravity="center_horizontal"
                    android:orientation="vertical">

                    <TextView
                        android:id="@+id/love_music"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="@string/backdrop_title"
                        android:textColor="@android:color/white"
                        android:textSize="@dimen/backdrop_title" />

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="@string/backdrop_subtitle"
                        android:textColor="@android:color/white"
                        android:textSize="@dimen/backdrop_subtitle" />

                </LinearLayout>
            </RelativeLayout>

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_collapseMode="pin"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/main_content" />

</android.support.design.widget.CoordinatorLayout>


MAIN_CONTENT.XML

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/viewBg"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:showIn="@layout/activity_main">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:clipToPadding="false"
        android:scrollbars="vertical" />

</RelativeLayout>

PC_CARD.XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <android.support.v7.widget.CardView
        android:id="@+id/card_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="center"
        android:layout_margin="@dimen/card_margin"
        android:elevation="3dp"
        card_view:cardCornerRadius="@dimen/card_pc_radius">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <ImageView
                android:id="@+id/thumbnail"
                android:layout_width="match_parent"
                android:layout_height="@dimen/pc_cover_height"
                android:background="?attr/selectableItemBackgroundBorderless"
                android:clickable="true"
                android:scaleType="fitXY" />

            <TextView
                android:id="@+id/name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@id/thumbnail"
                android:paddingLeft="@dimen/pc_title_padding"
                android:paddingRight="@dimen/pc_title_padding"
                android:paddingTop="@dimen/pc_title_padding"
                android:textColor="@color/album_title"
                android:textSize="@dimen/pc_title" />

            <TextView
                android:id="@+id/rating"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@id/name"
                android:paddingBottom="@dimen/songs_count_padding_bottom"
                android:paddingLeft="@dimen/pc_title_padding"
                android:paddingRight="@dimen/pc_title_padding"
                android:textSize="@dimen/songs_count" />

            <ImageView
                android:id="@+id/overflow"
                android:layout_width="@dimen/ic_pc_overflow_width"
                android:layout_height="@dimen/ic_pc_overflow_height"
                android:layout_alignParentRight="true"
                android:layout_below="@id/thumbnail"
                android:layout_marginTop="@dimen/ic_pc_overflow_margin_top"
                android:scaleType="centerCrop"
                android:src="@drawable/ic_dots" />

        </RelativeLayout>

    </android.support.v7.widget.CardView>

</LinearLayout>


PC CLASS

 public class PC {

        private String name;
        private int thumbnail;
        private int rating;

        public PC(){

        }

        public PC(String name, int rating, int thumbnail) {
            this.name = name;
            this.rating = rating;
            this.thumbnail = thumbnail;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public int getThumbnail() {
            return thumbnail;
        }

        public void setThumbnail(int thumbnail) {
            this.thumbnail = thumbnail;
        }

        public int getRating() {
            return rating;
        }

        public void setRating(int rating) {
            this.rating = rating;
        }
    }

PCAdapter Class

import android.content.Context;
import android.support.v7.widget.PopupMenu;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.bumptech.glide.Glide;
import java.util.List;


public class PCAdapter extends RecyclerView.Adapter<PCAdapter.MyViewHolder> {

    private Context mContext;
    private List<PC> PCList;

    public PCAdapter(Context mContext, List<PC> PCList) {
        this.mContext = mContext;
        this.PCList = PCList;
    }

    public class MyViewHolder extends RecyclerView.ViewHolder {
        public TextView name, rating;
        public ImageView thumbnail, overflow;

        public MyViewHolder(View view) {
            super(view);
            name = (TextView) view.findViewById(R.id.name);
            rating= (TextView) view.findViewById(R.id.rating);
            thumbnail = (ImageView) view.findViewById(R.id.thumbnail);
            overflow = (ImageView) view.findViewById(R.id.overflow);
        }
    }

    @Override
    public PCAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.pc_card, parent, false);
        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(final PCAdapter.MyViewHolder holder, int position) {
        PC movie = PCList.get(position);
        holder.name.setText(movie.getName());
        holder.rating.setText("Rating: "+String.valueOf( movie.getRating()));

       
        Glide.with(mContext).load(movie.getThumbnail()).into(holder.thumbnail);

        holder.overflow.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                showPopupMenu(holder.overflow);
            }
        });
    }

    @Override
    public int getItemCount() {
        return PCList.size();
    }

  
    private void showPopupMenu(View view) {
        // inflate menu
        PopupMenu popup = new PopupMenu(mContext, view);
        MenuInflater inflater = popup.getMenuInflater();
        inflater.inflate(R.menu.menu_movie, popup.getMenu());
        popup.setOnMenuItemClickListener(new MyMenuItemClickListener());
        popup.show();
    }
   
    class MyMenuItemClickListener implements PopupMenu.OnMenuItemClickListener {

        public MyMenuItemClickListener() {
        }
        @Override
        public boolean onMenuItemClick(MenuItem item) {
            switch (item.getItemId()) {
                case R.id.action_rate:
                    Toast.makeText(mContext, "Rate", Toast.LENGTH_SHORT).show();
                    return true;
                case R.id.action_share:
                    Toast.makeText(mContext, "Share", Toast.LENGTH_SHORT).show();
                    return true;
                default:
            }
            return false;
        }
    }
}

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context="id.ndiappink.cardview.MainActivity">
    <item
        android:id="@+id/action_settings"
        android:orderInCategory="100"
        android:title="@string/action_settings"
        app:showAsAction="never" />
</menu>



MAINACTIVITY CLASS

import android.content.res.Resources;
import android.graphics.Rect;
import android.net.Uri;
import android.support.design.widget.AppBarLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.v7.widget.Toolbar;
import android.util.TypedValue;
import android.view.View;
import android.widget.ImageView;

import com.bumptech.glide.Glide;
import com.google.android.gms.appindexing.Action;
import com.google.android.gms.appindexing.AppIndex;
import com.google.android.gms.appindexing.Thing;
import com.google.android.gms.common.api.GoogleApiClient;

import java.util.ArrayList;
import java.util.List;


public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;
    private PCAdapter adapter;
    private List<PC> PCList;
   
    private GoogleApiClient client;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        initCollapsingToolbar();

        recyclerView = (RecyclerView) findViewById(R.id.recycler_view);

        PCList = new ArrayList<>();
        adapter = new PCAdapter(this, PCList);

        RecyclerView.LayoutManager mLayoutManager = new GridLayoutManager(this, 2);
        recyclerView.setLayoutManager(mLayoutManager);
        recyclerView.addItemDecoration(new GridSpacingItemDecoration(2, dpToPx(10), true));
        recyclerView.setItemAnimator(new DefaultItemAnimator());
        recyclerView.setAdapter(adapter);

        prepareAlbums();

        try {
            Glide.with(this).load(R.drawable.cover).into((ImageView) findViewById(R.id.backdrop));
        } catch (Exception e) {
            e.printStackTrace();
        }
       
        client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
    }

       private void initCollapsingToolbar() {
        final CollapsingToolbarLayout collapsingToolbar =
                (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
        collapsingToolbar.setTitle(" ");
        AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.appbar);
        appBarLayout.setExpanded(true);
        appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
            boolean isShow = false;
            int scrollRange = -1;

            @Override
            public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
                if (scrollRange == -1) {
                    scrollRange = appBarLayout.getTotalScrollRange();
                }
                if (scrollRange + verticalOffset == 0) {
                    collapsingToolbar.setTitle(getString(R.string.app_name));
                    isShow = true;
                } else if (isShow) {
                    collapsingToolbar.setTitle(" ");
                    isShow = false;
                }
            }
        });
    }

    private void prepareAlbums() {
        int[] posters = new int[]{

                R.drawable.pc1,
                R.drawable.pc2,
                R.drawable.pc3,
                R.drawable.pc4,
                R.drawable.pc5,
                R.drawable.pc6,
                R.drawable.pc7,
                R.drawable.pc8,
                R.drawable.pc9,
                R.drawable.pc10,};

        PC a = new PC("PC 1", 3, posters[0]);
        PCList.add(a);

        a = new PC("PC 2", 5, posters[1]);
        PCList.add(a);

        a = new PC("PC 3", 11, posters[2]);
        PCList.add(a);

        a = new PC("PC 4", 12, posters[3]);
        PCList.add(a);

        a = new PC("PC 5", 14, posters[4]);
        PCList.add(a);

        a = new PC("PC 6", 1, posters[5]);
        PCList.add(a);

        a = new PC("PC 7", 11, posters[6]);
        PCList.add(a);

        a = new PC("PC 8", 14, posters[7]);
        PCList.add(a);

        a = new PC("PC 9", 11, posters[8]);
        PCList.add(a);

        a = new PC("PC 10", 11, posters[9]);
        PCList.add(a);

        adapter.notifyDataSetChanged();
    }

    public Action getIndexApiAction() {
        Thing object = new Thing.Builder()
                .setName("Main Page") 
                .setUrl(Uri.parse("http://[ENTER-YOUR-URL-HERE]"))
                .build();
        return new Action.Builder(Action.TYPE_VIEW)
                .setObject(object)
                .setActionStatus(Action.STATUS_TYPE_COMPLETED)
                .build();
    }

    @Override
    public void onStart() {
        super.onStart();

        client.connect();
        AppIndex.AppIndexApi.start(client, getIndexApiAction());
    }

    @Override
    public void onStop() {
        super.onStop();

        AppIndex.AppIndexApi.end(client, getIndexApiAction());
        client.disconnect();
    }

        public class GridSpacingItemDecoration extends RecyclerView.ItemDecoration {

        private int spanCount;
        private int spacing;
        private boolean includeEdge;

        public GridSpacingItemDecoration(int spanCount, int spacing, boolean includeEdge) {
            this.spanCount = spanCount;
            this.spacing = spacing;
            this.includeEdge = includeEdge;
        }

        @Override
        public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
            int position = parent.getChildAdapterPosition(view); 
            int column = position % spanCount; 

            if (includeEdge) {
                outRect.left = spacing - column * spacing / spanCount; 
                outRect.right = (column + 1) * spacing / spanCount; 

                if (position < spanCount) { 
                    outRect.top = spacing;
                }
                outRect.bottom = spacing; 
            } else {
                outRect.left = column * spacing / spanCount; 
                outRect.right = spacing - (column + 1) * spacing / spanCount; 
                if (position >= spanCount) {
                    outRect.top = spacing; 
                }
            }
        }
    }

        private int dpToPx(int dp) {
        Resources r = getResources();
        return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, r.getDisplayMetrics()));
    }
}


MANIFEST

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="id.ndiappink.cardview">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity><!-- ATTENTION: This was auto-generated to add Google Play services to your project for
     App Indexing.  See https://g.co/AppIndexing/AndroidStudio for more information. -->
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
    </application>
</manifest>