xml file here::::
<?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">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="23dp"
android:text="@string/heading"
android:textSize="36sp"
android:textStyle="bold"
app:fontFamily="cursive"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="@+id/imageView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:contentDescription="@string/grid"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView"
app:srcCompat="@drawable/grid" />
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="0dp"
android:layout_height="420dp"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="@+id/imageView"
app:layout_constraintEnd_toEndOf="@+id/imageView"
app:layout_constraintStart_toStartOf="@+id/imageView"
app:layout_constraintTop_toTopOf="@+id/imageView">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<ImageView
android:id="@+id/imageView0"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="0" />
<ImageView
android:id="@+id/imageView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="1" />
<ImageView
android:id="@+id/imageView2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="2" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<ImageView
android:id="@+id/imageView3"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="3" />
<ImageView
android:id="@+id/imageView4"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="4" />
<ImageView
android:id="@+id/imageView5"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="5" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal">
<ImageView
android:id="@+id/imageView6"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="6" />
<ImageView
android:id="@+id/imageView7"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="7" />
<ImageView
android:id="@+id/imageView8"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="playerTap"
android:padding="20sp"
android:tag="8" />
</LinearLayout>
</LinearLayout>
<TextView
android:id="@+id/status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="15sp"
android:text="@string/status"
android:textSize="18sp"
android:textStyle="italic"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/linearLayout" />
</androidx.constraintlayout.widget.ConstraintLayout>
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
LOGIC here:
package com.codewithritesh.tictactoe;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
boolean gameActive = true;
// Player representation
// 0 - X
// 1 - O
int activePlayer = 0;
int[] gameState = {2, 2 , 2, 2, 2, 2, 2, 2, 2};
// State meanings:
// 0 - X
// 1 - O
// 2 - Null
int[][] winPositions = {{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 void playerTap(View view){
ImageView img = (ImageView) view;
int tappedImage = Integer.parseInt(img.getTag().toString());
if(!gameActive){
gameReset(view);
}
if(gameState[tappedImage] == 2) {
gameState[tappedImage] = activePlayer;
img.setTranslationY(-1000f);
if (activePlayer == 0) {
img.setImageResource(R.drawable.x);
activePlayer = 1;
TextView status = findViewById(R.id.status);
status.setText("O's Turn - Tap to play");
} else {
img.setImageResource(R.drawable.o);
activePlayer = 0;
TextView status = findViewById(R.id.status);
status.setText("X's Turn - Tap to play");
}
img.animate().translationYBy(1000f).setDuration(300);
}
// Check if any player has won
for(int[] winPosition: winPositions){
if(gameState[winPosition[0]] == gameState[winPosition[1]] &&
gameState[winPosition[1]] == gameState[winPosition[2]] &&
gameState[winPosition[0]]!=2){
// Somebody has won! - Find out who!
String winnerStr;
gameActive = false;
if(gameState[winPosition[0]] == 0){
winnerStr = "X has won";
}
else{
winnerStr = "O has won";
}
// Update the status bar for winner announcement
TextView status = findViewById(R.id.status);
status.setText(winnerStr);
}
}
}
public void gameReset(View view) {
gameActive = true;
activePlayer = 0;
for(int i=0; i<gameState.length; i++){
gameState[i] = 2;
}
((ImageView)findViewById(R.id.imageView0)).setImageResource(0);
((ImageView)findViewById(R.id.imageView1)).setImageResource(0);
((ImageView)findViewById(R.id.imageView2)).setImageResource(0);
((ImageView)findViewById(R.id.imageView3)).setImageResource(0);
((ImageView)findViewById(R.id.imageView4)).setImageResource(0);
((ImageView)findViewById(R.id.imageView5)).setImageResource(0);
((ImageView)findViewById(R.id.imageView6)).setImageResource(0);
((ImageView)findViewById(R.id.imageView7)).setImageResource(0);
((ImageView)findViewById(R.id.imageView8)).setImageResource(0);
TextView status = findViewById(R.id.status);
status.setText("X's Turn - Tap to play");
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
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