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Android CardView Tutorial

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Pre-requisites

  1. Android Studio installed on your PC (Unix or Windows). You can learn how to install it here .
  2. A real time android device (Smartphone or Tablet) configured with Android Studio. .
  3. Before proceeding we advice you to go through the Recycler View tutorial at the following link => Listing Items using RecyclerView. Since we won’t be repeating the concepts described in earlier above post.

Creating a New Project

  1. Open Android Studio and create a new project Android CardView Tutorial and company domain application.example.com (We have used our own company domain i.e androidtutorialpoint.com. Similarly you can use yours).
  2. Click Next and choose Min SDK, we have kept the default value. Again Click Next and Choose Blank Activity .
  3. Choose the Activity as MainActivity and click next.
  4. Leave all other things as default and Click Finish.

A new project will be created and gradle will resolve all the dependencies.
We would be listing wonders of the world so create a new WonderModel.java class which will have all the field as well getter,setter methods required for a wonder. Add the following code to the class

WonderModel.java

package com.androidtutorialpoint.cardviewtutorial;

public class WonderModel {

    String cardName;
    int imageResourceId;
    int isfav;
    int isturned;

    public int getIsturned() {
        return isturned;
    }

    public void setIsturned(int isturned) {
        this.isturned = isturned;
    }

    public int getIsfav() {
        return isfav;
    }

    public void setIsfav(int isfav) {
        this.isfav = isfav;
    }

    public String getCardName() {
        return cardName;
    }

    public void setCardName(String cardName) {
        this.cardName = cardName;
    }

    public int getImageResourceId() {
        return imageResourceId;
    }

    public void setImageResourceId(int imageResourceId) {
        this.imageResourceId = imageResourceId;
    }
}

Adding Support Library for RecyclerView

Add the following code to the App Level build.gradle

    compile 'com.android.support:recyclerview-v7:23.1.1'
    compile 'com.android.support:cardview-v7:23.1.1'

Now, Gradle will sync your project and add the dependencies.

Add a RecyclerView

  1. Create a layout file by Right-clicking on the res/layout directory and selectingNew → Layout resource file. Name the file fragment_card.xml and click OK to create the file.Open the file add the following code.
  2. fragment_card.xml

    <RelativeLayout xmlns:android="https://schemas.android.com/apk/res/android"
    xmlns:tools="https://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_left_margin"
    android:paddingRight="@dimen/activity_right_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MyActivity">
    
    <android.support.v7.widget.RecyclerView
        android:id="@+id/cardView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
    </RelativeLayout>
    

    Let’s create a layout file. Create a new Layout resource file name it recycle_items.xml and paste the following code.

    recycle_items.xml

    <android.support.v7.widget.CardView xmlns:android="https://schemas.android.com/apk/res/android"
        xmlns:card_view="https://schemas.android.com/apk/res-auto"
        android:id="@+id/card_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        card_view:cardCornerRadius="4dp">
    
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="@dimen/card_height"
            android:orientation="vertical"
            android:weightSum="4">
    
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="0dip"
                android:layout_weight="3.2"
                android:orientation="vertical">
    
                <FrameLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_gravity="center_horizontal">
    
                    <ImageView
                        android:id="@+id/coverImageView"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent"
                        android:layout_gravity="center"
                        android:scaleType="centerCrop"
                        />
    
                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_gravity="left|bottom"
                        android:background="@android:drawable/screen_background_dark_transparent"
                        android:orientation="vertical">
    
                        <TextView
                            android:id="@+id/titleTextView"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:padding="16dp"
                            android:textSize="@dimen/text_size"
                            android:textColor="#FFFFFF"
                            android:textStyle="bold" />
                    </LinearLayout>
                </FrameLayout>
            </LinearLayout>
    
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="0dip"
                android:layout_weight="0.8"
                android:gravity="center|right"
                android:orientation="horizontal">
    
                <ImageView
                    android:id="@+id/likeImageView"
                    android:layout_width="@dimen/icon_width"
                    android:layout_height="@dimen/icon_height"
                    android:padding="@dimen/icon_padding"
                    android:src="@drawable/ic_like" />
    
                <ImageView
                    android:id="@+id/shareImageView"
                    android:layout_width="@dimen/icon_width"
                    android:layout_height="@dimen/icon_height"
                    android:padding="@dimen/icon_padding"
                    android:src="@drawable/ic_share" />
            </LinearLayout>
    
        </LinearLayout>
    </android.support.v7.widget.CardView>
    
    

    The layout is pretty much self explanatory, We have used a combination of LinearLayout and FrameLayout‘s to generate a beautiful Android Carview layout. We have an ImageView for the android cardview background and a TextView for the displaying the name of the place. Then we have used another LinearLayout for rendering the Like and Share buttons.

    Adding The Functionality

    1. Create a new fragment, name it CardFragment.java and add the following code.
      Let’s use arrays to store the name and ImageId for each 7 wonders. We have already added the photos of the places to the drawable folder. You can download the code by clicking on the Download Now Button provided at the top.
    2. CardFragment.java

       
      
          String Wonders[] = {"Chichen Itza","Christ the Redeemer","Great Wall of China","Machu Picchu","Petra","Taj Mahal","Colosseum"};
          int  Images[] = {R.drawable.chichen_itza,R.drawable.christ_the_redeemer,R.drawable.great_wall_of_china,R.drawable.machu_picchu,R.drawable.petra,R.drawable.taj_mahal,R.drawable.colosseum};
      
      
    3. In the onCreate() method we use the initializeList() method to initialize the ArrayList in Android Cardview which will be passed to the Adapter later.
    4.      @Override
          public void onCreate(@Nullable Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              initializeList();
              getActivity().setTitle("7 Wonders of the Modern World");
          }
      

      Following is the implementation of the intializeList() method. Add this method after the onCreate() method in the file.

             public void initializeList() {
              listitems.clear();
      
              for(int i =0;i<7;i++){
      
      
                  WonderModel item = new WonderModel();
                  item.setCardName(Wonders[i]);
                  item.setImageResourceId(Images[i]);
                  item.setIsfav(0);
                  item.setIsturned(0);
                  listitems.add(item);
      
              }
      
          }
      
    5. A view Holder is required to hold on to the views, so add the following code.
    6. public class MyViewHolder extends RecyclerView.ViewHolder {
      
              public TextView titleTextView;
              public ImageView coverImageView;
              public ImageView likeImageView;
              public ImageView shareImageView;
      
              public MyViewHolder(View v) {
                  super(v);
                  titleTextView = (TextView) v.findViewById(R.id.titleTextView);
                  coverImageView = (ImageView) v.findViewById(R.id.coverImageView);
                  likeImageView = (ImageView) v.findViewById(R.id.likeImageView);
                  shareImageView = (ImageView) v.findViewById(R.id.shareImageView);
                  likeImageView.setOnClickListener(new View.OnClickListener() {
                      @Override
                      public void onClick(View v) {
      
      
                          int id = (int)likeImageView.getTag();
                              if( id == R.drawable.ic_like){
      
                                  likeImageView.setTag(R.drawable.ic_liked);
                                  likeImageView.setImageResource(R.drawable.ic_liked);
                                  Toast.makeText(getActivity(),titleTextView.getText()+" added to favourites",Toast.LENGTH_SHORT).show();
      
                              }else{
      
                                  likeImageView.setTag(R.drawable.ic_like);
                                  likeImageView.setImageResource(R.drawable.ic_like);
                                  Toast.makeText(getActivity(),titleTextView.getText()+" removed from favourites",Toast.LENGTH_SHORT).show();
      
                              }
                      }
                  });
      
                  shareImageView.setOnClickListener(new View.OnClickListener() {
                      @Override
                      public void onClick(View v) {
      
                          Uri imageUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE +
                                  "://" + getResources().getResourcePackageName(coverImageView.getId())
                                  + '/' + "drawable" + '/' + getResources().getResourceEntryName((int)coverImageView.getTag()));
      
                          Intent shareIntent = new Intent();
                          shareIntent.setAction(Intent.ACTION_SEND);
                          shareIntent.putExtra(Intent.EXTRA_STREAM,imageUri);
                          shareIntent.setType("image/jpeg");
                          startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.send_to)));
                      }
                  });
              }
          }
      
      

      The above code extends the RecyclerView.ViewHolder class and references the ImageView and the TextViews for each view it will be holding.

      It also has setOnClickListener() attached to the likeImageView and the shareImageView.

      On clicking the like button the state of the button is toggled and it shows a corresponding message that it has added/removed the item to/from favourites.

      In the OnClick() for the shareImageView an Intent is fired that shows an option to share the image of the place you have selected.

    7. Next, extend the RecyclerView.Adapter class, this adapter is link between the RecyclerView and the data which we want to list. It creates required ViewHolders and also binds the ViewHolder to data from the WonderModel class.

      It has three main methods:

      1. onCreateViewHolder() : Inflates the layout and creates a new view Holder.
      2. onBindViewHodler() : Binds the data to the view holder.
      3. getItemCount() : returns the size of the data to be dispalyed.

      Use the following code to create a MyAdapter.

    8. public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
              private ArrayList<WonderModel> list;
      
              public MyAdapter(ArrayList<WonderModel> Data) {
                  list = Data;
              }
      
              @Override
              public MyViewHolder onCreateViewHolder(ViewGroup parent,int viewType) {
                  // create a new view
                  View view = LayoutInflater.from(parent.getContext())
                          .inflate(R.layout.recycle_items, parent, false);
                  MyViewHolder holder = new MyViewHolder(view);
                  return holder;
              }
      
              @Override
              public void onBindViewHolder(final MyViewHolder holder, int position) {
      
                  holder.titleTextView.setText(list.get(position).getCardName());
                  holder.coverImageView.setImageResource(list.get(position).getImageResourceId());
                  holder.coverImageView.setTag(list.get(position).getImageResourceId());
                  holder.likeImageView.setTag(R.drawable.ic_like);
      
              }
      
             @Override
              public int getItemCount() {
                  return list.size();
              }
          }
          
      
    9. In the onCreateView() method of the CardFragment.java, we reference the RecyclerView that was added in the layout file. We create a new LinearLayoutManager and later set the RecyclerView to use it. The purpose of the LayoutManager is to handle the positioning of the list items and scrolling behaviour.
    10. @Override
          public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                   Bundle savedInstanceState) {
      
              View view = inflater.inflate(R.layout.fragment_card, container, false);
              MyRecyclerView = (RecyclerView) view.findViewById(R.id.cardView);
              MyRecyclerView.setHasFixedSize(true);
              LinearLayoutManager MyLayoutManager = new LinearLayoutManager(getActivity());
              MyLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
              if (listitems.size() > 0 & MyRecyclerView != null) {
                  MyRecyclerView.setAdapter(new MyAdapter(listitems));
              }
              MyRecyclerView.setLayoutManager(MyLayoutManager);
      
              return view;
          }
      

      Here is the completed CardFragment.java file.

      CardFragment.java

      package com.androidtutorialpoint.cardviewtutorial;
      
              import android.content.ContentResolver;
              import android.content.Intent;
              import android.net.Uri;
              import android.os.Bundle;
              import android.support.annotation.Nullable;
              import android.support.v4.app.Fragment;
              import android.support.v7.widget.LinearLayoutManager;
              import android.support.v7.widget.RecyclerView;
              import android.support.v7.widget.Toolbar;
              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 java.util.ArrayList;
      
      
      
      public class CardFragment extends Fragment {
      
          ArrayList<WonderModel> listitems = new ArrayList<>();
          RecyclerView MyRecyclerView;
          String Wonders[] = {"Chichen Itza","Christ the Redeemer","Great Wall of China","Machu Picchu","Petra","Taj Mahal","Colosseum"};
          int  Images[] = {R.drawable.chichen_itza,R.drawable.christ_the_redeemer,R.drawable.great_wall_of_china,R.drawable.machu_picchu,R.drawable.petra,R.drawable.taj_mahal,R.drawable.colosseum};
      
          @Override
          public void onCreate(@Nullable Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              initializeList();
              getActivity().setTitle("7 Wonders of the Modern World");
          }
      
          @Override
          public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                   Bundle savedInstanceState) {
      
              View view = inflater.inflate(R.layout.fragment_card, container, false);
              MyRecyclerView = (RecyclerView) view.findViewById(R.id.cardView);
              MyRecyclerView.setHasFixedSize(true);
              LinearLayoutManager MyLayoutManager = new LinearLayoutManager(getActivity());
              MyLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
              if (listitems.size() > 0 & MyRecyclerView != null) {
                  MyRecyclerView.setAdapter(new MyAdapter(listitems));
              }
              MyRecyclerView.setLayoutManager(MyLayoutManager);
      
              return view;
          }
      
          @Override
          public void onActivityCreated(Bundle savedInstanceState) {
              super.onActivityCreated(savedInstanceState);
      
          }
      
          public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
              private ArrayList<WonderModel> list;
      
              public MyAdapter(ArrayList<WonderModel> Data) {
                  list = Data;
              }
      
              @Override
              public MyViewHolder onCreateViewHolder(ViewGroup parent,int viewType) {
                  // create a new view
                  View view = LayoutInflater.from(parent.getContext())
                          .inflate(R.layout.recycle_items, parent, false);
                  MyViewHolder holder = new MyViewHolder(view);
                  return holder;
              }
      
              @Override
              public void onBindViewHolder(final MyViewHolder holder, int position) {
      
                  holder.titleTextView.setText(list.get(position).getCardName());
                  holder.coverImageView.setImageResource(list.get(position).getImageResourceId());
                  holder.coverImageView.setTag(list.get(position).getImageResourceId());
                  holder.likeImageView.setTag(R.drawable.ic_like);
      
              }
      
             @Override
              public int getItemCount() {
                  return list.size();
              }
          }
      
          public class MyViewHolder extends RecyclerView.ViewHolder {
      
              public TextView titleTextView;
              public ImageView coverImageView;
              public ImageView likeImageView;
              public ImageView shareImageView;
      
              public MyViewHolder(View v) {
                  super(v);
                  titleTextView = (TextView) v.findViewById(R.id.titleTextView);
                  coverImageView = (ImageView) v.findViewById(R.id.coverImageView);
                  likeImageView = (ImageView) v.findViewById(R.id.likeImageView);
                  shareImageView = (ImageView) v.findViewById(R.id.shareImageView);
                  likeImageView.setOnClickListener(new View.OnClickListener() {
                      @Override
                      public void onClick(View v) {
      
      
                          int id = (int)likeImageView.getTag();
                              if( id == R.drawable.ic_like){
      
                                  likeImageView.setTag(R.drawable.ic_liked);
                                  likeImageView.setImageResource(R.drawable.ic_liked);
      
                                  Toast.makeText(getActivity(),titleTextView.getText()+" added to favourites",Toast.LENGTH_SHORT).show();
      
                              }else{
      
                                  likeImageView.setTag(R.drawable.ic_like);
                                  likeImageView.setImageResource(R.drawable.ic_like);
                                  Toast.makeText(getActivity(),titleTextView.getText()+" removed from favourites",Toast.LENGTH_SHORT).show();
      
      
                              }
      
                      }
                  });
      
      
      
                  shareImageView.setOnClickListener(new View.OnClickListener() {
                      @Override
                      public void onClick(View v) {
      
                          Uri imageUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE +
                                  "://" + getResources().getResourcePackageName(coverImageView.getId())
                                  + '/' + "drawable" + '/' + getResources().getResourceEntryName((int)coverImageView.getTag()));
      
      
                          Intent shareIntent = new Intent();
                          shareIntent.setAction(Intent.ACTION_SEND);
                          shareIntent.putExtra(Intent.EXTRA_STREAM,imageUri);
                          shareIntent.setType("image/jpeg");
                          startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.send_to)));
      
      
      
                      }
                  });
      
      
      
              }
          }
      
          public void initializeList() {
              listitems.clear();
      
              for(int i =0;i<7;i++){
      
      
                  WonderModel item = new WonderModel();
                  item.setCardName(Wonders[i]);
                  item.setImageResourceId(Images[i]);
                  item.setIsfav(0);
                  item.setIsturned(0);
                  listitems.add(item);
      
              }
          }
      }
      
    11. Next, we will be hosting CardFragment in the MainActivity. Open MainActivity.java and add the following code.
    12. MainActivity

      package com.androidtutorialpoint.cardviewtutorial;
      
      import android.os.Bundle;
      import android.support.v4.app.Fragment;
      import android.support.v4.app.FragmentManager;
      import android.support.v7.app.AppCompatActivity;
      
      public class MainActivity extends AppCompatActivity {
      
          @Override
          protected void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              setContentView(R.layout.activity_main);
      
              FragmentManager fm = getSupportFragmentManager();
              Fragment fragment = fm.findFragmentById(R.id.fragmentContainer);
      
              if (fragment == null) {
                  fragment = new CardFragment();
                  ;
                  fm.beginTransaction()
                          .add(R.id.fragmentContainer, fragment)
                          .commit();
              }
          }
      }
      
      

      The layout file for MainActivity i.e. activity_main.xml consists of a FrameLayout as a fragmentContainer.

      activity_main.xml

      <?xml version="1.0" encoding="utf-8"?>
      <FrameLayout xmlns:android="https://schemas.android.com/apk/res/android"
          xmlns:tools="https://schemas.android.com/tools"
          android:id="@+id/fragmentContainer"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          tools:context=".MainActivity">
      </FrameLayout>
      

      Run the App and you should see a scrollable List of 7 Wonders of the world. Try scrolling through and clicking Like or Share to share the photo. So our Android Cardview Tutorial is complete. Please comment in case you have any doubts or suggestions.



      What’s Next

      We hope this tutorial will help you getting started with RecyclerView and CardView on Android. You can reuse the cards to create beautiful apps that have a list interface. We will soon be covering more such tutorials. Till then stay tuned and don’t forget to subscribe our blog for latest android tutorials. Also do Like our Facebook Page or Add us on Twitter.

      Click on the Download Now button to download the full code.

      Android Tutorial Point Download Now



Reader Interactions

Comments

  1. Bro, how can I write a listener for the cardview ? I want to lauch another activity when the user clicks on the cardview element. Where can i find a way to do that?

  2. I have used the above codes in studio. It is displaying images, favorite button is working when I remove onClick from viewholder. When I add onclick block back again. It says getActivity () cannot resolve in favorite and getResources () , start activity cannot resolve.
    Please help me.
    It is awesome tutorial for recyclerview I found on all.
    Thanks in advance

  3. Share option is not working for me. Means its says file format is not supported.
    And I want to know how to save the image to gallery.
    It is awesome tutorial I ever found for recyclerview.

  4. Very helpful tutorial, can you how we can connect the favorites. Heart to actually send that specific cardview to another activity(Favorites) instead. Of just a Toast. And if possible using SharedPref or Sqlite to Save the Favorites which can be removed or added as the button (heart ) onclick functions Thank you in Advance

  5. very nice website for android i appreciate you Sir Please tell me in card view ,recycle view etc items on click on the item a new detailed activtiy is open with full image and full description how we can do it please reply with some solid tutorials
    #thanks in advance

  6. please i want to download the project but the link for download it not send to my email
    can u send it to me please

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