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

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingRight="@dimen/margin_4"
        android:paddingEnd="@dimen/margin_4"
        android:paddingLeft="@dimen/margin_4"
        android:paddingStart="@dimen/margin_4"
        android:clipToPadding="false"/>

</RelativeLayout>

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
    DataModelMainActivity model = items.get(position);
    MessageViewHolder messageViewHolder = (MessageViewHolder) holder;
    messageViewHolder.imageViewIcon.setBackgroundResource(model.getImage());
    messageViewHolder.textViewName.setText(model.getName());
    messageViewHolder.textViewStatus.setText(model.getStatus());
    messageViewHolder.textViewMobile.setText(model.getMobile());
}

@Override
public int getItemViewType(int position) {
    return  super.getItemViewType(position);
}

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View rootCategoryView = mInflater.inflate(R.layout.row_item, parent, false);
    return new MessageViewHolder(rootCategoryView, this);
}

private class MessageViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

    private ImageView imageViewIcon;
    private TextView textViewName;
    private TextView textViewStatus;
    private TextView textViewMobile;
    private CardView cardView;

    private MessageViewHolder(View itemView, AdapterMainActivity adapter) {
        super(itemView);
        imageViewIcon = (ImageView) itemView.findViewById(R.id.imageViewIcon);
        textViewName = (TextView) itemView.findViewById(R.id.textViewName);
        textViewStatus = (TextView) itemView.findViewById(R.id.textViewStatus);
        textViewMobile = (TextView) itemView.findViewById(R.id.textViewMobile);
        cardView = (CardView) itemView.findViewById(R.id.cardView);

        cardView.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        final int pos = getAdapterPosition();
        if (pos >= 0) {
            Toast.makeText(mActivity, "Selected Item Position "+pos, Toast.LENGTH_SHORT).show();
        }
    }
}

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

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

    gridLayoutManager = new GridLayoutManager(getApplicationContext(), 1);
    recyclerView.setLayoutManager(gridLayoutManager);

    data = new ArrayList<DataModelMainActivity>();
    for (int i = 0; i < nameArray.length; i++) {
        data.add(new DataModelMainActivity(imageArray[i], nameArray[i], statusArray[i], mobileArray[i]));
    }

    mAdapter = new AdapterMainActivity(data, MainActivity.this);
    recyclerView.setAdapter(mAdapter);