Creating basic tic tac toe android app using java

 Marvel Tic Tac Toe Android Game ( Java )

In this blog I we will create basic android app. We will be coding in java.

 




package com.example.batvsiron;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.GridLayout;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.Arrays;

public class MainActivity extends AppCompatActivity {


    int active = 0;
    public int[][] winningPosition= {
            {0,1,2},
            {3,4,5},
            {6,7,8},
            {0,3,6},
            {1,4,7},
            {2,5,8},
            {0,4,8},
            {2,4,6}
    };
    public int[] moves = {111,111,111,111,111,111,111,111,111};

    public int checkWinning() {
        for(int[] arr : winningPosition) {
            int sum = moves[arr[0]]+moves[arr[1]]+moves[arr[2]];
            if(sum == 0 || sum == 3) {
                return sum;
                // if sum == 0 first player wins
                // if sum == 3 second player wins
            }
        }
        return  -1;
    }

    public void playAgainClick(View v) {
//        Toast.makeText(this, "", Toast.LENGTH_SHORT).show();
        Button playAgain = (Button) findViewById(R.id.playAgain);
        TextView winnerDisplay = (TextView) findViewById(R.id.winnerDisplay);
        playAgain.setVisibility(View.INVISIBLE);
        winnerDisplay.setVisibility(View.INVISIBLE);
        androidx.gridlayout.widget.GridLayout gridLayout = findViewById(R.id.myGrid);
        for(int i=0;i<gridLayout.getChildCount();i++) {
            ImageView img = (ImageView) gridLayout.getChildAt(i);
//            img.setImageDrawable(null);
            img.animate().alpha(0).setDuration(800);
        }
        Arrays.fill(moves,111);

    }
    public  boolean noMoves() {
        for(int i=0;i<moves.length;i++)
        {
            if(moves[i] == 111) return false;
        }
        return  true;
    }
    public void userClick(View view) {

        int winner =  checkWinning();
        ImageView iv = (ImageView) view;
        int tagId = Integer.parseInt(iv.getTag().toString());
        if(winner == -1 && moves[tagId] == 111) {
            moves[tagId] = active;
            if (active == 0) {
                iv.setImageResource(R.drawable.captainamerica);
                active = 1;

                Log.d("Clicked", "userClick: " + tagId+"\t");
            } else {
                active = 0;
                iv.setImageResource(R.drawable.ironman);
            }
            iv.animate().alpha(1).setDuration(300);
        }
        winner = checkWinning();
        if(winner != -1 || noMoves()) {

                Button playAgain = (Button) findViewById(R.id.playAgain);
                TextView winnerDisplay = (TextView) findViewById(R.id.winnerDisplay);
                playAgain.setVisibility(View.VISIBLE);
                winnerDisplay.setVisibility(View.VISIBLE);

            String playerWon = (winner == 0) ? "Victory Of Captain America" :(noMoves())?"Game Draw": " Victory Of Iron Man";
            if(!noMoves())
            Toast.makeText(this, "Winner is " + playerWon, Toast.LENGTH_SHORT).show();
            winnerDisplay.setText( playerWon);
        }
    }

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

}



<?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">

    <ImageView
        android:id="@+id/imageView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0"
        app:srcCompat="@drawable/background" />

    <androidx.gridlayout.widget.GridLayout
        android:id="@+id/myGrid"
        android:layout_width="380dp"
        android:layout_height="380dp"
        android:background="@drawable/backy"
        app:layout_constraintBottom_toBottomOf="@+id/imageView3"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <ImageView
            android:id="@+id/Id11"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginStart="15dp"
            android:layout_marginTop="15dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="0"
            app:layout_column="0"
            app:layout_row="0"
            app:srcCompat="@drawable/captainamerica" />

        <ImageView
            android:id="@+id/Id12"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginStart="30dp"
            android:layout_marginTop="15dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="1"
            app:layout_column="1"
            app:layout_row="0"
            app:srcCompat="@drawable/captainamerica" />

        <ImageView
            android:id="@+id/Id13"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginTop="15dp"
            android:layout_marginRight="9dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="2"
            app:layout_column="3"
            app:layout_row="0"
            app:srcCompat="@drawable/captainamerica" />
        <!--        -->
        <ImageView
            android:id="@+id/Id21"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginStart="15dp"
            android:layout_marginTop="25dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="3"
            app:layout_column="0"
            app:layout_row="1"
            app:srcCompat="@drawable/captainamerica" />

        <ImageView
            android:id="@+id/Id22"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginStart="30dp"
            android:layout_marginTop="25dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="4"
            app:layout_column="1"
            app:layout_row="1"
            app:srcCompat="@drawable/captainamerica" />

        <ImageView
            android:id="@+id/Id23"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginTop="25dp"
            android:layout_marginRight="9dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="5"
            app:layout_column="3"
            app:layout_row="1"
            app:srcCompat="@drawable/captainamerica" />
        <!--        -->
        <ImageView
            android:id="@+id/Id31"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginStart="15dp"
            android:layout_marginTop="25dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="6"
            app:layout_column="0"
            app:layout_row="2"
            app:srcCompat="@drawable/captainamerica" />

        <ImageView
            android:id="@+id/Id32"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginStart="30dp"
            android:layout_marginTop="25dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="7"
            app:layout_column="1"
            app:layout_row="2"
            app:srcCompat="@drawable/captainamerica" />

        <ImageView
            android:id="@+id/Id33"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_marginTop="25dp"
            android:layout_marginRight="9dp"
            android:alpha="0"
            android:onClick="userClick"
            android:tag="8"
            app:layout_column="3"
            app:layout_row="2"
            app:srcCompat="@drawable/captainamerica" />
    </androidx.gridlayout.widget.GridLayout>

    <Button
        android:id="@+id/playAgain"
        android:layout_width="127dp"
        android:layout_height="54dp"
        android:layout_marginBottom="36dp"
        android:background="#FDD835"
        android:onClick="playAgainClick"
        android:text="Play Again"
        android:visibility="invisible"
        app:layout_constraintBottom_toTopOf="@+id/myGrid"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.538"
        app:layout_constraintStart_toStartOf="parent"
        tools:visibility="invisible" />

    <TextView
        android:id="@+id/winnerDisplay"
        android:layout_width="167dp"
        android:layout_height="39dp"
        android:gravity="center"
        android:textColor="#F3F0E0"
        android:textSize="14sp"
        android:visibility="invisible"
        app:layout_constraintBottom_toTopOf="@+id/playAgain"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.535"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/imageView3"
        app:layout_constraintVertical_bias="0.695"
        tools:visibility="invisible" />

</androidx.constraintlayout.widget.ConstraintLayout>

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