Here are Tic Tac Toe game android App code below
Create a new project in Android Studio and name it “TicTacToeApp”.
Open the activity_main.xml file located in the res/layout directory. Replace the existing code with the following XML layout:
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<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:gravity="center" tools:context=".MainActivity"> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" android:padding="16dp"> <GridLayout android:id="@+id/gridLayout" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:columnCount="3" android:rowCount="3" android:useDefaultMargins="true"> <Button android:id="@+id/button1" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> <Button android:id="@+id/button2" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> <Button android:id="@+id/button3" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> <Button android:id="@+id/button4" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> <Button android:id="@+id/button5" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> <Button android:id="@+id/button6" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> <Button android:id="@+id/button7" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> <Button android:id="@+id/button8" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> <Button android:id="@+id/button9" style="@style/BoardButton" android:onClick="onBoardButtonClick" /> </GridLayout> <Button android:id="@+id/resetButton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_marginTop="16dp" android:text="Reset" android:onClick="resetGame" /> <TextView android:id="@+id/statusTextView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_marginTop="16dp" android:textSize="18sp" android:textStyle="bold" /> </LinearLayout> </LinearLayout> |
Open the MainActivity.java file located in the java/<your_package_name> directory. Replace the existing code with the following Java code:
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package com.example.tictactoeapp; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import androidx.appcompat.app.AppCompatActivity; public class MainActivity extends AppCompatActivity implements View.OnClickListener { private Button[][] buttons = new Button[3][3]; private boolean player1Turn = true; private int roundCount; private int player1Points; private int player2Points; private TextView textViewPlayer1; private TextView textViewPlayer2; private TextView textViewStatus; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textViewPlayer1 = findViewById(R.id.text_view_p1); textViewPlayer2 = findViewById(R.id.text_view_p2); textViewStatus = findViewById(R.id.text_view_status); for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { String buttonId = "button_" + i + j; int resourceId = getResources().getIdentifier(buttonId, "id", getPackageName()); buttons[i][j] = findViewById(resourceId); buttons[i][j].setOnClickListener(this); } } Button resetButton = findViewById(R.id.reset_button); resetButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { resetGame(); } }); } @Override public void onClick(View v) { if (!((Button) v).getText().toString().isEmpty()) { return; } if (player1Turn) { ((Button) v).setText("X"); } else { ((Button) v).setText("O"); } roundCount++; if (checkForWin()) { if (player1Turn) { player1Wins(); } else { player2Wins(); } } else if (roundCount == 9) { draw(); } else { player1Turn = !player1Turn; } } private boolean checkForWin() { String[][] board = new String[3][3]; for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { board[i][j] = buttons[i][j].getText().toString(); } } for (int i = 0; i < 3; i++) { if (board[i][0].equals(board[i][1]) && board[i][0].equals(board[i][2]) && !board[i][0].isEmpty()) { return true; } if (board[0][i].equals(board[1][i]) && board[0][i].equals(board[2][i]) && !board[0][i].isEmpty()) { return true; } } if (board[0][0].equals(board[1][1]) && board[0][0].equals(board[2][2]) && !board[0][0].isEmpty()) { return true; } if (board[0][2].equals(board[1][1]) && board[0][2].equals(board[2][0]) && !board[0][2].isEmpty()) { return true; } return false; } private void player1Wins() { player1Points++; updatePointsText(); resetBoard(); textViewStatus.setText("Player 1 wins!"); } private void player2Wins() { player2Points++; updatePointsText(); resetBoard(); textViewStatus.setText("Player 2 wins!"); } private void draw() { resetBoard(); textViewStatus.setText("It's a draw!"); } private void updatePointsText() { textViewPlayer1.setText("Player 1: " + player1Points); textViewPlayer2.setText("Player 2: " + player2Points); } private void resetBoard() { for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { buttons[i][j].setText(""); } } roundCount = 0; player1Turn = true; } private void resetGame() { player1Points = 0; player2Points = 0; updatePointsText(); resetBoard(); textViewStatus.setText(""); } } |
Open the AndroidManifest.xml file located in the app/src/main directory. Replace the existing code with the following:
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.tictactoeapp"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest> |
Open the build.gradle (Module: app) file located in the root directory of the project. Ensure that the minSdkVersion is set to 21 or higher:
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apply plugin: 'com.android.application' android { compileSdkVersion 30 buildToolsVersion "30.0.3" defaultConfig { applicationId "com.example.tictactoeapp" minSdkVersion 21 targetSdkVersion 30 versionCode 1 versionName "1.0" testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' } } compileOptions { sourceCompatibility = 1.8 targetCompatibility = 1.8 } lintOptions { checkReleaseBuilds false abortOnError false } } dependencies { implementation 'androidx.appcompat:appcompat:1.3.1' implementation 'androidx.constraintlayout:constraintlayout:2.1.0' testImplementation 'junit:junit:4.13.2' androidTestImplementation 'androidx.test.ext:junit:1.1.3' androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0' } |
That’s it! You can now build and run the app on an Android device or emulator, and it will function as a Tic Tac Toe game.