Android --#字XO小游戏

Layout

　　

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/titleText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="@string/title" />

    <Button
        android:id="@+id/newGameBtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:onClick="newGame"
        android:text="New Game" />

    <TableLayout
        android:id="@+id/tableLayout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center" >

        <TableRow
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >

            <Button
                android:id="@+id/topLeft"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="1"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />

            <Button
                android:id="@+id/button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="2"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />

            <Button
                android:id="@+id/button1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="3"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />
        </TableRow>

        <TableRow
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >

            <Button
                android:id="@+id/button2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="1"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />

            <Button
                android:id="@+id/button3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="2"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />

            <Button
                android:id="@+id/button4"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="3"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />
        </TableRow>

        <TableRow
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >

            <Button
                android:id="@+id/button5"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="1"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />

            <Button
                android:id="@+id/button6"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="2"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />

            <Button
                android:id="@+id/button7"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="3"
                android:height="100dp"
                android:text="O"
                android:width="100dp" />
        </TableRow>
    </TableLayout>

</LinearLayout>

Java

　　

package com.example.NaughtsAndCrosses;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;

public class MainActivity extends Activity {

	/**
	 * 轮到了正方还是反方，默认为X
	 */
	private boolean noughtsTurn = false;

	/**
	 * 用于记录表格中的数据
	 */
	private char board[][] = new char [ 3 ] [ 3 ];

	@ Override
	public void onCreate ( Bundle savedInstanceState ) {

		super.onCreate ( savedInstanceState );
		setContentView ( R.layout.main );

		setupOnClickListeners ( );

		resetButtons ( );
	}

	/**
	 * 当点击new Game按钮时候的点击事件 --> 初始化数据
	 */
	public void newGame ( View view ) {

		noughtsTurn = false;
		board = new char [ 3 ] [ 3 ];
		resetButtons ( );
	}

	/**
	 * 重置每个按钮的颜色以及文字
	 */
	private void resetButtons ( ) {

		//  找到TableLayout组件
		TableLayout T = ( TableLayout ) findViewById ( R.id.tableLayout );

		/**
		 * TabLayout --> TabRow --> Button
		 */
		for ( int y = 0 ; y < T.getChildCount ( ) ; y ++ ) {

			if (T.getChildAt ( y ) instanceof TableRow) {

				TableRow R = ( TableRow ) T.getChildAt ( y );

				for ( int x = 0 ; x < R.getChildCount ( ) ; x ++ ) {

					if (R.getChildAt ( x ) instanceof Button) {

						Button B = ( Button ) R.getChildAt ( x );
						B.setText ( "" );
						B.setEnabled ( true );
					}
				}
			}
		}

		//  找到文字组件并 设置提示的文字信息
		TextView t = ( TextView ) findViewById ( R.id.titleText );
		t.setText ( R.string.title );

	}

	/**
	 * 检查是否有人获胜
	 */
	private boolean checkWin ( ) {

		// 获胜方为X
		char winner = '\0';
		if (checkWinner ( board , 3 , 'X' )) {
			winner = 'X';
		}
		// 获胜方为Y
		else if (checkWinner ( board , 3 , 'O' )) {
			winner = 'O';
		}

		// 没有人获胜
		if (winner == '\0') {
			return false;
		}
		//  有人获胜，并提示是哪一个获胜
		else {
			// display winner
			TextView T = ( TextView ) findViewById ( R.id.titleText );
			T.setText ( winner + " wins" );
			return true;
		}
	}

	/**
	 * 检查是哪一方获胜
	 */
	private boolean checkWinner ( char [ ][ ] board , int size ,
	                              char player ) {

		// 检查每一行
		for ( int x = 0 ; x < size ; x ++ ) {
			int total = 0;
			for ( int y = 0 ; y < size ; y ++ ) {
				if (board [ x ] [ y ] == player) {
					total ++ ;
				}
			}
			if (total >= size) {
				return true;
			}
		}

		// 检查每一列
		for ( int y = 0 ; y < size ; y ++ ) {
			int total = 0;
			for ( int x = 0 ; x < size ; x ++ ) {
				if (board [ x ] [ y ] == player) {
					total ++ ;
				}
			}
			if (total >= size) {
				return true;
			}
		}

		//  检查X == Y的那条对角线
		int total = 0;
		for ( int x = 0 ; x < size ; x ++ ) {
			for ( int y = 0 ; y < size ; y ++ ) {
				if (x == y
				                              && board [ x ] [ y ] == player) {
					total ++ ;
				}
			}
		}
		if (total >= size) {
			return true;
		}

		// 检查X != Y的对角线
		total = 0;
		for ( int x = 0 ; x < size ; x ++ ) {
			for ( int y = 0 ; y < size ; y ++ ) {
				if (x + y == size - 1
				                              && board [ x ] [ y ] == player) {
					total ++ ;
				}
			}
		}

		// 有人获胜
		if (total >= size) {
			return true;
		}

		//  没有人获胜
		return false;
	}

	/**
	 * 有人获胜的情况下，禁用网格上的所有按钮
	 */
	private void disableButtons ( ) {

		TableLayout T = ( TableLayout ) findViewById ( R.id.tableLayout );
		for ( int y = 0 ; y < T.getChildCount ( ) ; y ++ ) {
			if (T.getChildAt ( y ) instanceof TableRow) {
				TableRow R = ( TableRow ) T.getChildAt ( y );
				for ( int x = 0 ; x < R.getChildCount ( ) ; x ++ ) {
					if (R.getChildAt ( x ) instanceof Button) {
						Button B = ( Button ) R.getChildAt ( x );
						B.setEnabled ( false );
					}
				}
			}
		}
	}

	/**
	 * 每次点击按钮时候的处理事件，得到点击的x和y坐标，
	 */
	private void setupOnClickListeners ( ) {

		TableLayout T = ( TableLayout ) findViewById ( R.id.tableLayout );
		for ( int y = 0 ; y < T.getChildCount ( ) ; y ++ ) {
			if (T.getChildAt ( y ) instanceof TableRow) {
				TableRow R = ( TableRow ) T.getChildAt ( y );
				for ( int x = 0 ; x < R.getChildCount ( ) ; x ++ ) {
					View V = R.getChildAt ( x );
					V.setOnClickListener ( new PlayOnClick (
					                              x ,
					                              y ) );
				}
			}
		}
	}

	/**
	 * Button 按钮的自定义点击事件,然后根据noughtsTurn是true还是false
	 * 来决定存储的是X还是O，并设置点击过的按钮为不可编辑
	 *
	 * 并检查是否有人获胜 ，然后把noughtsTurn取反 表示另外一个人在操作
	 */
	private class PlayOnClick implements View.OnClickListener {

		// 点击按钮的x坐标
		private int x = 0;

		// 点击按钮的Y坐标
		private int y = 0;

		public PlayOnClick (
		               int x , int y ) {

			this.x = x;
			this.y = y;
		}

		@ Override
		public void onClick ( View view ) {

			if (view instanceof Button) {
				Button B = ( Button ) view;
				board [ x ] [ y ] = noughtsTurn ? 'O'
				                              : 'X';
				B.setText ( noughtsTurn ? "O"
				                              : "X" );
				B.setEnabled ( false );
				noughtsTurn = ! noughtsTurn;

				//  检查是否有人获胜
				if (checkWin ( )) {
					disableButtons ( );
				}
			}
		}
	}
}

String.xml

　　

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">Noughts & Crosses</string>
    <string name="title">Naughts & Crosses - By Lyndon Armitage</string>
</resources>