Offline RecyclerView in Android Studio

 in activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".MainActivity"
    android:background="#939292">


    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/rv"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

in single_view.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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="wrap_content"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="150dp"
        android:layout_height="150dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/ic_launcher_background" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:layout_marginBottom="8dp"
        android:text="TextView"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="@+id/imageView"
        app:layout_constraintStart_toStartOf="@+id/imageView"
        app:layout_constraintTop_toBottomOf="@+id/imageView" />
</androidx.constraintlayout.widget.ConstraintLayout>

in MyAdapter.java

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.myViewHolder> {

    int []arr;
    String []arry;
    Context mContext;


    public MyAdapter(int[] arr, String[]arry, Context context) {
        this.arr = arr;
        this.arry = arry;
        mContext = context;

    }


    @NonNull
    @Override
    public myViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.single_view, parent, false);
        return new myViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull myViewHolder holder, int position) {
        holder.imageView.setImageResource(arr[position]);
        holder.textView.setText("Image Number" + position);

    }

    @Override
    public int getItemCount() {
        return arr.length;
    }

    public class myViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        ImageView imageView;
        TextView textView;

        public myViewHolder(@NonNull View itemView) {
            super(itemView);
            imageView = itemView.findViewById(R.id.imageView);
            textView =itemView.findViewById(R.id.textView);

            imageView.setOnClickListener(this::onClick);
        }

        @Override
        public void onClick(View view) {
            Toast.makeText(mContext, arry[getAdapterPosition()], Toast.LENGTH_SHORT).show();
        }
    }
}

in MainActivity.java

public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;
    RecyclerView.LayoutManager layoutManager;

    MyAdapter myAdapter;

    String []arry = {"அ ஆ இ","One two three", "ABC", "Animals", "Birds", "Flowers", "Family",};
    int []arr = {R.drawable.aa_aa, R.drawable.one_two, R.drawable.abc, R.drawable.animals, R.drawable.birds,
                    R.drawable.flower, R.drawable.family};

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

        recyclerView = findViewById(R.id.rv);
        layoutManager = new GridLayoutManager(this, 2);
        recyclerView.setLayoutManager(layoutManager);

        myAdapter = new MyAdapter(arr, arry,this);
        recyclerView.setAdapter(myAdapter);

        recyclerView.setHasFixedSize(true);

    }

}

android studio