GridLayoutManager With Recyclerview

 
activity layout

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 

 xmlns:tools="http://schemas.android.com/tools" 

 android:layout_width="match_parent" 

 android:layout_height="match_parent" 

 tools:context=".MainActivity">

    <android.support.v7.widget.RecyclerView 

 android:id="@+id/recycler_view" 

 android:layout_width="match_parent" 

 android:layout_height="match_parent" 

 android:clipToPadding="false" 

 android:paddingBottom="80dp" 

 android:scrollbars="vertical" />
</RelativeLayout>

content_main layout

<?xml version="1.0" encoding="utf-8"?>

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 

 android:layout_width="match_parent" 

 android:layout_height="wrap_content" 

 android:orientation="vertical">

    <RelativeLayout 

 android:layout_width="match_parent" 

 android:layout_height="match_parent">

        <ImageView 

 android:id="@+id/country_photo" 

 android:layout_width="wrap_content" 

 android:layout_height="wrap_content" 

 android:contentDescription="@string/action_settings" 

 android:scaleType="centerCrop" />

        <TextView 

 android:id="@+id/country_name" 

 android:layout_width="match_parent" 

 android:layout_height="wrap_content" 

 android:layout_alignParentBottom="true" 

 android:layout_below="@+id/country_photo" 

 android:gravity="center" 

 android:paddingBottom="8dp" 

 android:paddingTop="8dp" 

 android:textSize="13sp" />

    </RelativeLayout>
</LinearLayout>

ItemObject class 

public class ItemObject {
    String name;
    int photo;

    public ItemObject(String name, int photo) {
        this.name = name;
        this.photo = photo;
    }

    public String getName() {
        return name;
    }

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

    public int getPhoto() {
        return photo;
    }

    public void setPhoto(int photo) {
        this.photo = photo;
    }
}

RecyclerViewHolders class

public class RecyclerViewHolders extends RecyclerView.ViewHolder implements View.OnClickListener {
    public TextView countryName;
    public ImageView countryPhoto;

    // add event  click 

 public RecyclerViewHolders(View itemView) {
        super(itemView);
        itemView.setOnClickListener(this);
        countryName = (TextView) itemView.findViewById(R.id.country_name);
        countryPhoto = (ImageView) itemView.findViewById(R.id.country_photo);
    }

    @Override 

 public void onClick(View v) {
        Toast.makeText(v.getContext(), "pos:" + getPosition(), Toast.LENGTH_SHORT).show();
    }
}
 

RecyclerViewAdapter

public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewHolders> {

    private List<ItemObject> itemList;
    private Context context;

    public RecyclerViewAdapter(Context context, List<ItemObject> itemList) {
        this.itemList = itemList;
        this.context = context;
    }

    @Override 

 public RecyclerViewHolders onCreateViewHolder(ViewGroup parent, int viewType) {

        View layoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.content_main, null);
        RecyclerViewHolders rcv = new RecyclerViewHolders(layoutView);
        return rcv;
    }

    @Override 

 public void onBindViewHolder(RecyclerViewHolders holder, int position) {
        holder.countryName.setText(itemList.get(position).getName());
        holder.countryPhoto.setImageResource(itemList.get(position).getPhoto());
    }

    @Override 

 public int getItemCount() {
        return this.itemList.size();
    }
}
 

MainActivity class

public class MainActivity extends AppCompatActivity {
    private GridLayoutManager lLayout;

    @Override 

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        List<ItemObject> rowListItem = getAllItemList();
        lLayout = new GridLayoutManager(MainActivity.this, 4);// 4->columns 

        RecyclerView rView = (RecyclerView) findViewById(R.id.recycler_view);
        rView.setHasFixedSize(true);
        rView.setLayoutManager(lLayout);
        RecyclerViewAdapter rcAdapter = new RecyclerViewAdapter(this, rowListItem);
        rView.setAdapter(rcAdapter);
    }

    private List<ItemObject> getAllItemList() {

        List<ItemObject> allItems = new ArrayList<ItemObject>();
        allItems.add(new ItemObject("United States", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Canada", R.drawable.ic_launcher));
        allItems.add(new ItemObject("United Kingdom", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Germany", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Sweden", R.drawable.ic_launcher));
        allItems.add(new ItemObject("United Kingdom", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Germany", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Sweden", R.drawable.ic_launcher));
        allItems.add(new ItemObject("United States", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Canada", R.drawable.ic_launcher));
        allItems.add(new ItemObject("United Kingdom", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Germany", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Sweden", R.drawable.ic_launcher));
        allItems.add(new ItemObject("United Kingdom", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Germany", R.drawable.ic_launcher));
        allItems.add(new ItemObject("Sweden", R.drawable.ic_launcher));

        return allItems;
    }

}