How to make TicTakToe Game App?

 

Xml Code:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:gravity="center"
    tools:context=".MainActivity">

    <GridLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:rowCount="3"
        android:columnCount="3"
        >
        <Button
            android:onClick="Check"
            android:id="@+id/btn1"

            />
        <Button
            android:onClick="Check"
            android:id="@+id/btn2"
            android:layout_marginLeft="11dp"
            />
        <Button
            android:onClick="Check"
            android:id="@+id/btn3"
            android:layout_marginLeft="11dp"/>
        <Button
            android:onClick="Check"
            android:id="@+id/btn4"/>
        <Button
            android:id="@+id/btn5"
            android:onClick="Check"
            android:layout_marginLeft="11dp"/>
        <Button
            android:onClick="Check"
            android:id="@+id/btn6"
            android:layout_marginLeft="11dp"/>
        <Button
            android:onClick="Check"
            android:id="@+id/btn7"/>
        <Button
            android:onClick="Check"
            android:id="@+id/btn8"
            android:layout_marginLeft="11dp"/>
        <Button
            android:id="@+id/btn9"
            android:onClick="Check"
            android:layout_marginLeft="11dp"/>
    </GridLayout>


</LinearLayout>

Java Code:

package com.programmingwithus786;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    Button btn1,btn2,btn3,btn4,btn5,btn6,btn7,btn8,btn9;
    String b1,b2,b3,b4,b5,b6,b7,b8,b9;
    int flag = 0;
    int count=0;

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

        init();

    }

    private void init() {
        btn1=findViewById(R.id.btn1);
        btn2=findViewById(R.id.btn2);
        btn3=findViewById(R.id.btn3);
        btn4=findViewById(R.id.btn4);
        btn5=findViewById(R.id.btn5);
        btn6=findViewById(R.id.btn6);
        btn7=findViewById(R.id.btn7);
        btn8=findViewById(R.id.btn8);
        btn9=findViewById(R.id.btn9);

    }

    public void Check(View view) {
        Button btnCurrent= (Button) view;
        if (btnCurrent.getText().toString().equals("")) {
            count++;
            if (flag == 0) {
                btnCurrent.setText("X");
                flag = 1;
            } else {
                btnCurrent.setText("O");
                flag = 0;
            }
            if (count > 4) {
                b1 = btn1.getText().toString();
                b2 = btn2.getText().toString();
                b3 = btn3.getText().toString();
                b4 = btn4.getText().toString();
                b5 = btn5.getText().toString();
                b6 = btn6.getText().toString();
                b7 = btn7.getText().toString();
                b8 = btn8.getText().toString();
                b9 = btn9.getText().toString();

                //condition
                if (b1.equals(b2) && b2.equals(b3) && !b1.equals("")) {
                    //1
                    Toast.makeText(this, "winner is :" + b1, Toast.LENGTH_SHORT).show();
                   newgame();

                } else if (b4.equals(b5) && b5.equals(b6) && !b4.equals("")) {
                    //2
                    Toast.makeText(this, "winner is :" + b4, Toast.LENGTH_SHORT).show();
                  newgame();

                } else if (b7.equals(b8) && b8.equals(b9) && !b7.equals("")) {
                    //3
                    Toast.makeText(this, "winner is :" + b7, Toast.LENGTH_SHORT).show();
                 newgame();

                } else if (b1.equals(b4) && b4.equals(b7) && !b1.equals("")) {
                    //4
                    Toast.makeText(this, "winner is :" + b1, Toast.LENGTH_SHORT).show();
                   newgame();


                } else if (b2.equals(b5) && b5.equals(b8) && !b2.equals("")) {
                    //5
                    Toast.makeText(this, "winner is :" + b2, Toast.LENGTH_SHORT).show();
                  newgame();

                } else if (b3.equals(b6) && b6.equals(b9) && !b3.equals("")) {
                    //6
                    Toast.makeText(this, "winner is :" + b3, Toast.LENGTH_SHORT).show();
                 newgame();

                } else if (b1.equals(b5) && b5.equals(b9) && !b1.equals("")) {
                    //7
                    Toast.makeText(this, "winner is :" + b1, Toast.LENGTH_SHORT).show();
                  newgame();

                } else if (b3.equals(b5) && b5.equals(b7) && !b3.equals("")) {
                    //8
                    Toast.makeText(this, "winner is :" + b3, Toast.LENGTH_SHORT).show();
                  newgame();


                }else if (count==9){
                    Toast.makeText(this, "Match is Drawn ", Toast.LENGTH_SHORT).show();
                    newgame();
                }


            }
        }

    }
    public void newgame(){
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent i =new Intent(getApplicationContext(),MainActivity.class);
//or

                startActivity(i);
                finish();

                btn1.setText("");
                btn2.setText("");
                btn3.setText("");
                btn4.setText("");
                btn5.setText("");
                btn6.setText("");
                btn7.setText("");
                btn8.setText("");
                btn9.setText("");
                flag=0;
                count=0;
            }
        },5000);

    }
}