java - 我的应用程序在启动时停止

Question

所以我刚刚开始用java编程，并尝试制作一个TicTicToeGame，它成功了:)问题是，你只能玩1个TicTacToe游戏，所以我想制作一个重新启动游戏的按钮和一个按钮退出游戏。因为我添加了这个并尝试在我的手机上运行它，所以当我启动它时它崩溃了。这是我的 MainActivity.java:

package com.example.testjk;

import android.support.v7.app.ActionBarActivity;
import android.content.Context;
import android.graphics.Color;
import android.inputmethodservice.ExtractEditText;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;



public class MainActivity extends ActionBarActivity implements OnClickListener{

    private TicTacToeGame mGame;

    private Button mBoardButtons[];

    private TextView mInfoTextView;
    private TextView mHumanCount;
    private TextView mTieCount;
    private TextView mAndroidCount;

    private int mHumanCounter = 0;
    private int mTieCounter = 0;
    private int mAndroidCounter = 0;

    private boolean mHumanFirst = true;
    private boolean mGameOver = false;




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

        mBoardButtons = new Button[mGame.getBOARD_SIZE()];
        mBoardButtons[0] = (Button) findViewById(R.id.one);
        mBoardButtons[1] = (Button) findViewById(R.id.two);
        mBoardButtons[2] = (Button) findViewById(R.id.three);
        mBoardButtons[3] = (Button) findViewById(R.id.four);
        mBoardButtons[4] = (Button) findViewById(R.id.five);
        mBoardButtons[5] = (Button) findViewById(R.id.six);
        mBoardButtons[6] = (Button) findViewById(R.id.seven);
        mBoardButtons[7] = (Button) findViewById(R.id.eight);
        mBoardButtons[8] = (Button) findViewById(R.id.nine);

        Button mTen = (Button) findViewById(R.id.ten);
        mTen.setOnClickListener((OnClickListener) this);
        Button mEleven = (Button) findViewById(R.id.eleven);
        mEleven.setOnClickListener((OnClickListener) this);


        mInfoTextView = (TextView) findViewById(R.id.information);
        mHumanCount = (TextView) findViewById(R.id.humancount);
        mTieCount = (TextView) findViewById(R.id.tiesCount);
        mAndroidCount = (TextView) findViewById(R.id.androidCount);

        mHumanCount.setText(Integer.toString(mHumanCounter));
        mTieCount.setText(Integer.toString(mTieCounter));
        mHumanCount.setText(Integer.toString(mAndroidCounter));

        mGame = new TicTacToeGame();

        startNewGame();


    }

    @Override
    public void onClick(View v)
    {
        switch (v.getId())
        {
        case R.id.ten:

            startNewGame();
            break;

        case R.id.eleven:

            MainActivity.this.finish();
            break;

        }
    }



    private void startNewGame()
    {
        mGame.clearBoard();

        for (int i = 0; i < mBoardButtons.length; i++)
        {
            mBoardButtons[i].setText("");
            mBoardButtons[i].setEnabled(true);
            mBoardButtons[i].setOnClickListener(new ButtonClickListener(i));

        }
        if (mHumanFirst)
        {
            mInfoTextView.setText(R.string.first_human);
            mHumanFirst = false;
        }
        else
        {
            mInfoTextView.setText(R.string.turn_computer);
            int move = mGame.getComputerMove();
            setMove(mGame.ANDROID_PLAYER, move);
            mHumanFirst = true;
        }
    }

    private class ButtonClickListener implements View.OnClickListener
    {
        int location;

        public ButtonClickListener(int location)
        {
            this.location = location;
        }

        public void onClick(View view)
        {
            if (!mGameOver)
            {
                if(mBoardButtons[location].isEnabled())
                {
                    setMove(mGame.HUMAN_PLAYER, location);

                    int winner = mGame.checkForWinner();

                    if (winner == 0)
                    {
                        mInfoTextView.setText(R.string.turn_computer);
                        int move = mGame.getComputerMove();
                        setMove(mGame.ANDROID_PLAYER, move);
                        winner = mGame.checkForWinner();

                    }
                    if (winner == 0)
                            mInfoTextView.setText(R.string.turn_human);
                    else if (winner == 1)
                    {
                        mInfoTextView.setText(R.string.result_tie);
                        mTieCounter++;
                        mTieCount.setText(Integer.toString(mTieCounter));
                        mGameOver = true;
                    }       
                    else if (winner ==2)
                    {
                        mInfoTextView.setText(R.string.result_human_wins);
                        mHumanCounter++;
                        mHumanCount.setText(Integer.toString(mHumanCounter));
                        mGameOver = true;
                    }
                    else if (winner ==3)
                    {
                        mInfoTextView.setText(R.string.result_android_wins);
                        mAndroidCounter++;
                        mAndroidCount.setText(Integer.toString(mAndroidCounter));
                        mGameOver = true;
                    }
                }
            }
        }
    }

    private void setMove(char player, int location)
    {
        mGame.setMove(player,location);
        mBoardButtons[location].setEnabled(false);
        mBoardButtons[location].setText(String.valueOf(player));
        if (player == mGame.HUMAN_PLAYER)
            mBoardButtons[location].setTextColor(Color.GREEN);
        else
        {
            mBoardButtons[location].setTextColor(Color.RED);
        }
    }

}

这是我的 strings.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">testjk</string>
    <string name="hello_world">Hello world!</string>
    <string name="turn_human">Jouw beurt.</string>
    <string name="first_human">Jij mag eerst beginnen.</string>
    <string name="turn_computer">computer is aan het nadenken</string>
    <string name="result_tie">Gelijkspel!</string>
    <string name="result_human_wins">net aan gewonnen!</string>
    <string name="result_android_wins">sukkel!</string>
    <string name="one">1</string>
    <string name="two">2</string>
    <string name="three">3</string>
    <string name="four">4</string>
    <string name="five">5</string>
    <string name="six">6</string>
    <string name="seven">7</string>
    <string name="eight">8</string>
    <string name="nine">9</string>
    <string name="ten">nieuw spel</string>
    <string name="eleven">stoppen</string>
    <string name="info">Info</string>
    <string name="human">JIJ:  </string>
    <string name="ties">Gelijkspel:  </string>
    <string name="android">Computer:  </string>
    <string name="contact_heading">Contact Informatie</string>
    <string name="action_settings">Settings</string>
    <string name="contact_info">

        <b>Name:</b> Wouter\n
        <b>Achternaam</b> de Jong\n
        <b>Email</b> woutter@live.nl
        </string>
        <string name="about_heading">over </string>
        <string name="TicTacToeGame">Boter Kaas en Eieren van wouter de jong</string>


</resources>

这是我的activity_main.xml:

<RelativeLayout 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:layout_marginTop="26dp"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.testjk.MainActivity" >

    <TableLayout
        android:id="@+id/PlayArea"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="10dp" >


        <TableRow
            android:id="@+id/tableRow1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="clip_horizontal" >

            <Button
                android:id="@+id/one"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/one"
                android:textSize="70dp" />

            <Button
                android:id="@+id/two"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/two"
                android:textSize="70dp" />

            <Button
                android:id="@+id/three"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/three"
                android:textSize="70dp" />
        </TableRow>

        <TableRow
            android:id="@+id/tableRow2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="clip_horizontal" >

            <Button
                android:id="@+id/four"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/four"
                android:textSize="70dp" />

            <Button
                android:id="@+id/five"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/five"
                android:textSize="70dp" />

            <Button
                android:id="@+id/six"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/six"
                android:textSize="70dp" />
        </TableRow>

        <TableRow
            android:id="@+id/tableRow3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="clip_horizontal" >

            <Button
                android:id="@+id/seven"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/seven"
                android:textSize="70dp" />

            <Button
                android:id="@+id/eight"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/eight"
                android:textSize="70dp" />

            <Button
                android:id="@+id/nine"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:text="@string/nine"
                android:textSize="70dp" />
        </TableRow>
    </TableLayout>

    <TableRow
        android:id="@+id/tableRow4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/information"
        android:layout_centerHorizontal="true"
        android:gravity="center_horizontal|clip_horizontal|fill_horizontal" >

        <TextView
            android:id="@+id/human"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/human" />

        <TextView
            android:id="@+id/humancount"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="10dp" />

        <TextView
            android:id="@+id/ties"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/ties" />

        <TextView
            android:id="@+id/tiesCount"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="10dp" />

        <TextView
            android:id="@+id/androidcount"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/android" />

        <TextView
            android:id="@+id/androidCount"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </TableRow>

    <TextView
        android:id="@+id/information"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/PlayArea"
        android:layout_below="@+id/PlayArea"
        android:gravity="center"
        android:text="@string/info"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TableLayout
        android:id="@+id/tableLayout1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/tableRow4"
        android:layout_marginTop="32dp" >

        <TableRow
            android:id="@+id/tableRow5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" >

            <Button
                android:id="@+id/ten"
                android:layout_width="120dp"
                android:layout_height="wrap_content"
                android:text="@string/ten" />

            <Button
                android:id="@+id/eleven"
                android:layout_width="120dp"
                android:layout_height="wrap_content"
                android:layout_marginLeft="50dp"
                android:text="@string/eleven" />

        </TableRow>
    </TableLayout>

</RelativeLayout>

TicTacToeGame.java:

package com.example.testjk;

import java.util.Random;

public class TicTacToeGame {

    private char mBoard[];
    private final static int BOARD_SIZE = 9;

    public static final char HUMAN_PLAYER = 'X';
    public static final char ANDROID_PLAYER = '0';
    public static final char EMPTY_SPACE = ' ';

    private Random mRand;

    public static int getBOARD_SIZE() {
        return BOARD_SIZE;
    }

    public TicTacToeGame(){
        mBoard = new char[BOARD_SIZE];

        for (int i = 0; i < BOARD_SIZE; i++)
            mBoard[i] = EMPTY_SPACE;

        mRand = new Random();
    }

    public void clearBoard()
    {
        for (int i = 0;i < BOARD_SIZE; i++)
        {
            mBoard[i] = EMPTY_SPACE;
        }
    }

    public void setMove(char player, int location)
    {
        mBoard[location] = player;
    }

    public int getComputerMove()
    {
        int move;

        for (int i = 0; i < getBOARD_SIZE(); i++)
        {
            if (mBoard[i] != HUMAN_PLAYER && mBoard[i] != ANDROID_PLAYER)
            {
                char curr = mBoard[i];
                mBoard[i] = ANDROID_PLAYER;
                if (checkForWinner() == 3)
                {
                    setMove(ANDROID_PLAYER, i);
                    return i;
                }
                else 
                    mBoard[i] = curr;
            }
        }
        for (int i = 0; i < getBOARD_SIZE(); i++)
        {
            if (mBoard[i] != HUMAN_PLAYER && mBoard[i] != ANDROID_PLAYER)
            {
                char curr = mBoard[i];
                mBoard[i] = HUMAN_PLAYER;
                if (checkForWinner() == 2)
                {
                    setMove(ANDROID_PLAYER, i);
                    return i;
                }
                else 
                    mBoard[i] = curr;
            }
        }
        do
        {
            move = mRand.nextInt(getBOARD_SIZE());
        }while (mBoard[move]==HUMAN_PLAYER || mBoard[move] == ANDROID_PLAYER);

            setMove(ANDROID_PLAYER, move);
        return move;
    }
    public int checkForWinner()
    {
        for (int i=0;i<=6;i+=3)
        {
            if (mBoard[i] == HUMAN_PLAYER && 
                mBoard[i+1] == HUMAN_PLAYER && 
                mBoard[i+2] == HUMAN_PLAYER)
                return 2;
            if (mBoard[i] == ANDROID_PLAYER && 
                mBoard[i+1] == ANDROID_PLAYER && 
                mBoard[i+2] == ANDROID_PLAYER)
                return 3;
        }
        for (int i = 0; i <=2; i++)
        {
            if (mBoard[i] == HUMAN_PLAYER &&
                mBoard[i+3] == HUMAN_PLAYER &&
                mBoard[i+6] == HUMAN_PLAYER)
                return 2;
            if (mBoard[i] == ANDROID_PLAYER &&
            mBoard[i+3] == ANDROID_PLAYER &&
            mBoard[i+6] == ANDROID_PLAYER)
                return 3;

        }
        if((mBoard[0] == HUMAN_PLAYER &&
                mBoard[4] == HUMAN_PLAYER &&
                mBoard[8] == HUMAN_PLAYER)|| 
                (mBoard[2] == HUMAN_PLAYER &&
                mBoard[4] == HUMAN_PLAYER &&
                mBoard[6] == HUMAN_PLAYER))
        return 2;
    if((mBoard[0] == ANDROID_PLAYER &&
            mBoard[4] == ANDROID_PLAYER &&
            mBoard[8] == ANDROID_PLAYER)|| 
            (mBoard[2] == ANDROID_PLAYER &&
            mBoard[4] == ANDROID_PLAYER &&
            mBoard[6] == ANDROID_PLAYER))
        return 3;


    for (int i = 0; i < getBOARD_SIZE(); i++)
    {
        if (mBoard[i] != HUMAN_PLAYER && mBoard[i] != ANDROID_PLAYER)
            return 0;
    }
    return 1;
    }
}

我的 bin/res 文件夹中的 AndroidManiFest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.testjk"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_hoi"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

game_menu.xml 在我的 res/menu 文件夹中:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >





</menu>

这些是我编辑的所有类(class)。这是我得到的 logcat:/image/vP6De.png

Answer 1

package com.example.testjk;

import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity implements OnClickListener{

    private TicTacToeGame mGame;

    private Button mBoardButtons[];

    private TextView mInfoTextView;
    private TextView mHumanCount;
    private TextView mTieCount;
    private TextView mAndroidCount;

    private int mHumanCounter = 0;
    private int mTieCounter = 0;
    private int mAndroidCounter = 0;

    private boolean mHumanFirst = true;
    private boolean mGameOver = false;




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

        mBoardButtons = new Button[mGame.getBOARD_SIZE()];
        mBoardButtons[0] = (Button) findViewById(R.id.one);
        mBoardButtons[1] = (Button) findViewById(R.id.two);
        mBoardButtons[2] = (Button) findViewById(R.id.three);
        mBoardButtons[3] = (Button) findViewById(R.id.four);
        mBoardButtons[4] = (Button) findViewById(R.id.five);
        mBoardButtons[5] = (Button) findViewById(R.id.six);
        mBoardButtons[6] = (Button) findViewById(R.id.seven);
        mBoardButtons[7] = (Button) findViewById(R.id.eight);
        mBoardButtons[8] = (Button) findViewById(R.id.nine);

        Button mTen = (Button) findViewById(R.id.ten);
        mTen.setOnClickListener((OnClickListener) this);
        Button mEleven = (Button) findViewById(R.id.eleven);
        mEleven.setOnClickListener((OnClickListener) this);


        mInfoTextView = (TextView) findViewById(R.id.information);
        mHumanCount = (TextView) findViewById(R.id.humancount);
        mTieCount = (TextView) findViewById(R.id.tiesCount);
        mAndroidCount = (TextView) findViewById(R.id.androidCount);

        mHumanCount.setText(Integer.toString(mHumanCounter));
        mTieCount.setText(Integer.toString(mTieCounter));
        mHumanCount.setText(Integer.toString(mAndroidCounter));

        mGame = new TicTacToeGame();

        startNewGame();


    }

    @Override
    public void onClick(View v)
    {
        switch (v.getId())
        {
        case R.id.ten:

            startNewGame();
            break;

        case R.id.eleven:

            MainActivity.this.finish();
            break;

        }
    }



    private void startNewGame()
    {
        mGame.clearBoard();

        for (int i = 0; i < mBoardButtons.length; i++)
        {
            mBoardButtons[i].setText("");
            mBoardButtons[i].setEnabled(true);
            mBoardButtons[i].setOnClickListener(new ButtonClickListener(i));

        }
        if (mHumanFirst)
        {
            mInfoTextView.setText(R.string.first_human);
            mHumanFirst = false;
        }
        else
        {
            mInfoTextView.setText(R.string.turn_computer);
            int move = mGame.getComputerMove();
            setMove(mGame.ANDROID_PLAYER, move);
            mHumanFirst = true;
        }
    }

    private class ButtonClickListener implements View.OnClickListener
    {
        int location;

        public ButtonClickListener(int location)
        {
            this.location = location;
        }

        public void onClick(View view)
        {
            if (!mGameOver)
            {
                if(mBoardButtons[location].isEnabled())
                {
                    setMove(mGame.HUMAN_PLAYER, location);

                    int winner = mGame.checkForWinner();

                    if (winner == 0)
                    {
                        mInfoTextView.setText(R.string.turn_computer);
                        int move = mGame.getComputerMove();
                        setMove(mGame.ANDROID_PLAYER, move);
                        winner = mGame.checkForWinner();

                    }
                    if (winner == 0)
                            mInfoTextView.setText(R.string.turn_human);
                    else if (winner == 1)
                    {
                        mInfoTextView.setText(R.string.result_tie);
                        mTieCounter++;
                        mTieCount.setText(Integer.toString(mTieCounter));
                        mGameOver = true;
                    }       
                    else if (winner ==2)
                    {
                        mInfoTextView.setText(R.string.result_human_wins);
                        mHumanCounter++;
                        mHumanCount.setText(Integer.toString(mHumanCounter));
                        mGameOver = true;
                    }
                    else if (winner ==3)
                    {
                        mInfoTextView.setText(R.string.result_android_wins);
                        mAndroidCounter++;
                        mAndroidCount.setText(Integer.toString(mAndroidCounter));
                        mGameOver = true;
                    }
                }
            }
        }
    }

    private void setMove(char player, int location)
    {
        mGame.setMove(player,location);
        mBoardButtons[location].setEnabled(false);
        mBoardButtons[location].setText(String.valueOf(player));
        if (player == mGame.HUMAN_PLAYER)
            mBoardButtons[location].setTextColor(Color.GREEN);
        else
        {
            mBoardButtons[location].setTextColor(Color.RED);
        }
    }



}

它在这里工作，因为我不使用appcompact 7进行开发，我使用 Activity 来扩展你的类，并且我也没有使用你的menu.xml，首先删除该文件并尝试构建你的代码，如果这不起作用使用这个文件在我这边工作正常，游戏重新启动和应用程序关闭也可以。谢谢 使用这个并在出现任何问题时返回。在这里查看它的工作