Rendering Tic Tac Toe Cross and Circle in libGDX [closed]

I am new in LibGDX. For learning purpose, I am creating TicTacToe and I spent two days to figure out what went wrong with rendering the cross and circle. Whenever I click on the cell, the cross and circle blinking at the same time. It is supposed to print alternately. What I did wrong in the code?
Here is the code

package com.mytictactoe;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.math.Vector3;

public class MyTicTacToe extends ApplicationAdapter {

    private static final int MAX_FINGERS = 2;

    SpriteBatch batch;
    Texture tile, circle, cross;
    Vector3 mouse;
    OrthographicCamera camera;

    enum Tile { EMPTY,  CROSS,  CIRCLE  }

    final int WIDTH = 480;
    final int HEIGHT = 600;

    int tileSize;
    int boardOffset;
    Tile[][] tiles;
    Tile currentPlayer = Tile.CROSS;

    @Override
    public void create() {
        tiles = new Tile[3][3];
        tileSize = WIDTH / tiles[0].length;
        boardOffset = (HEIGHT - tileSize * tiles.length) / 2;

        camera = new OrthographicCamera();
        camera.setToOrtho(false, WIDTH, HEIGHT);

        batch = new SpriteBatch();
        tile = new Texture("tile.png");
        circle = new Texture("circle.png");
        cross = new Texture("cross.png");
    }

    public void update(float dt) {

    }

    @Override
    public void render() {
        Gdx.gl.glClearColor(1, 1, 1, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        //processing user input
        for (int i = 0; i < MAX_FINGERS; i++) {
            if (Gdx.input.isTouched(i)) { //using polling
                mouse = new Vector3();

                mouse.x = Gdx.input.getX(i);
                mouse.y = Gdx.input.getY(i);

                camera.unproject(mouse);

                if (mouse.y > boardOffset 
                        && mouse.y < boardOffset + tileSize * tiles.length) {
                    int row = (int)((mouse.y - boardOffset) / tileSize);
                    int col = (int)(mouse.x / tileSize);

                    tiles[row][col] = currentPlayer;
                    currentPlayer = (currentPlayer == Tile.CROSS) 
                            ? Tile.CIRCLE : Tile.CROSS;
                }
            }
        }

        batch.begin();
        for (int row = 0; row < tiles.length; row++) {
            for (int col = 0; col < tiles[0].length; col++) {
                if (tiles[row][col] == Tile.CIRCLE) {
                    batch.draw(circle,col * tileSize,
                               row * tileSize + boardOffset,
                               tileSize,    tileSize);
                    System.out.println("Circle is printed");
                } else if (tiles[row][col] == Tile.CROSS) {
                    batch.draw(cross,col * tileSize,
                               row * tileSize + boardOffset,
                               tileSize,tileSize);
                    System.out.println("Cross is printed");
                } else {
                    batch.draw(tile, col * tileSize, 
                               row * tileSize + boardOffset,
                               tileSize, tileSize);
                    System.out.println("Tile is printed");
                }
            }
        }
        System.out.println("Outside the FOR LOOP");

        batch.end();
    }

    @Override
    public void dispose() {
        batch.dispose();
        tile.dispose();
        cross.dispose();
        circle.dispose();
    }
}