所以我最近制作了我的第一个应用程序并出去测试它。当我在手机上打开应用程序时遇到了2个问题。关闭我的应用程序的菜单有3个按钮，1个用于启动＆＃34; 1个玩家游戏＆＃34; 1开始＃2; 2人游戏＆＃34;和1退出应用程序。当我按下按钮播放＆＃34; 1人游戏时＃34;什么都没发生。当我按下＆＃34; 2玩家游戏＆＃34;按钮，应用关闭错误＆＃34;不幸的是testjk已关闭＆＃34;。我完全不知道我在代码中做错了什么。我的问题标签中也没有错误。一些帮助将不胜感激。
MainMenuScreen.java：
package com.wouter.testjk;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
public class MainMenuScreen extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main_menu);
//1player
findViewById(R.id.two_player).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d("DEBUG", "One Player Button Pressed!");
Intent intent = new Intent(MainMenuScreen.this, TicTacToeGame.class);
intent.putExtra("gameType", true);
startActivityForResult(intent, 0);
}
});
//2players
findViewById(R.id.two_player).setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Log.d("DEBUG", "Two Player Button Pressed!");
Intent intent = new Intent(MainMenuScreen.this, TicTacToeGame.class);
intent.putExtra("gameType", false);
startActivityForResult(intent, 0);
}
});
//exit game
findViewById(R.id.exit_game).setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Log.d("DEBUG", "Exit Game Button Pressed!");
MainMenuScreen.this.finish();
}
});
}
}
MainActivity.java：
package com.wouter.testjk;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.TextView;
import com.wouter.testjk.R;
public class MainActivity extends Activity implements OnClickListener{
private TicTacToeGame mGame;
private Button mBoardButtons[];
private TextView mInfoTextView;
private TextView mPlayeroneCount;
private TextView mTieCount;
private TextView mPlayertwoCount;
private TextView mPlayeroneText;
private TextView mPlayertwoText;
private int mPlayeroneCounter = 0;
private int mTieCounter = 0;
private int mPlayertwoCounter = 0;
private boolean mPlayeroneFirst = true;
private boolean mIsSinglePlayer = false;
private boolean mIsPlayerOneTurn = true;
private boolean mGameOver = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
boolean mGameType = getIntent().getExtras().getBoolean("gametype");
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(this);
Button mEleven = (Button) findViewById(R.id.eleven);
mEleven.setOnClickListener(this);
mInfoTextView = (TextView) findViewById(R.id.information);
mPlayeroneCount = (TextView) findViewById(R.id.humancount);
mTieCount = (TextView) findViewById(R.id.tiesCount);
mPlayertwoCount = (TextView) findViewById(R.id.androidCount);
mPlayeroneText = (TextView) findViewById(R.id.human);
mPlayertwoText = (TextView) findViewById(R.id.android);
mPlayeroneCount.setText(Integer.toString(mPlayeroneCounter));
mTieCount.setText(Integer.toString(mTieCounter));
mPlayeroneCount.setText(Integer.toString(mPlayertwoCounter));
mGame = new TicTacToeGame();
startNewGame(mGameType);
}
private void startNewGame(boolean isSingle)
{
this.mIsSinglePlayer = isSingle;
mGame.clearBoard();
for (int i = 0; i < mBoardButtons.length; i++)
{
mBoardButtons[i].setText("");
mBoardButtons[i].setEnabled(true);
mBoardButtons[i].setOnClickListener(new ButtonClickListener(i));
}
if (mIsSinglePlayer)
{
mPlayeroneText.setText("speler: ");
mPlayertwoText.setText("android: ");
if (mPlayeroneFirst)
{
mInfoTextView.setText(R.string.first_human);
mPlayeroneFirst = false;
}
else
{
mInfoTextView.setText(R.string.turn_computer);
int move = mGame.getComputerMove();
setMove(TicTacToeGame.PLAYER_TWO, move);
mPlayeroneFirst = true;
}
}
else
{
mPlayeroneText.setText("speler 1: ");
mPlayertwoText.setText("speler 2: ");
if (mPlayeroneFirst)
{
mInfoTextView.setText(R.string.turn_player_one);
mPlayeroneFirst = false;
}
else
{
mInfoTextView.setText(R.string.turn_player_two);
mPlayeroneFirst = true;
}
}
mGameOver = false;
}
private class ButtonClickListener implements View.OnClickListener
{
int location;
public ButtonClickListener(int location)
{
this.location = location;
}
@Override
public void onClick(View view) {
if (!mGameOver)
{
if(mBoardButtons[location].isEnabled())
{
if(mIsSinglePlayer)
{
setMove(TicTacToeGame.PLAYER_ONE, location);
int winner = mGame.checkForWinner();
if (winner == 0)
{
mInfoTextView.setText(R.string.turn_computer);
int move = mGame.getComputerMove();
setMove(TicTacToeGame.PLAYER_TWO, 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);
mPlayeroneCounter++;
mPlayeroneCount.setText(Integer.toString(mPlayeroneCounter));
mGameOver = true;
}
else if (winner ==3)
{
mInfoTextView.setText(R.string.result_android_wins);
mPlayertwoCounter++;
mPlayertwoCount.setText(Integer.toString(mPlayertwoCounter));
mGameOver = true;
}
}
else
{
if(mIsPlayerOneTurn)
{
setMove(TicTacToeGame.PLAYER_ONE, location);
}
else
{
setMove(TicTacToeGame.PLAYER_TWO, location);
}
int winner = mGame.checkForWinner();
if (winner == 0)
{
if(mIsPlayerOneTurn)
{
mInfoTextView.setText(R.string.turn_player_two);
mIsPlayerOneTurn = false;
}
else
{
mInfoTextView.setText(R.string.turn_player_one);
mIsPlayerOneTurn = true;
}
}
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.player_one_wins);
mPlayeroneCounter++;
mPlayeroneCount.setText(Integer.toString(mPlayeroneCounter));
mGameOver = true;
}
else if (winner ==3)
{
mInfoTextView.setText(R.string.player_two_wins);
mPlayertwoCounter++;
mPlayertwoCount.setText(Integer.toString(mPlayertwoCounter));
mGameOver = true;
}
}
}
}
}
}
private void setMove(char player, int location)
{
mGame.setMove(player,location);
mBoardButtons[location].setEnabled(false);
if (player == TicTacToeGame.PLAYER_ONE)
mBoardButtons[location].setTextColor(Color.GREEN);
else
{
mBoardButtons[location].setTextColor(Color.RED);
}
}
@Override
public void onClick(View view) {
switch (view.getId())
{
case R.id.ten:
startNewGame(mIsSinglePlayer);
return;
case R.id.eleven:
MainActivity.this.finish();
return;
}
}
}
清单文件：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.wouter.testjk"
android:versionCode="3"
android:versionName="3" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainMenuScreen"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
</activity>
</application>
</manifest>
LogCat：http://textuploader.com/on1k -------- http://imgur.com/d8662NO ----------- 我不知道我应该如何上传这个
答案 0 :(得分：4)
您要将OnClickListener分配给同一个按钮R.id.two_player。也就是说，将第一个更改为one_player，如
// 1player
findViewById(R.id.one_player).setOnClickListener(new View.OnClickListener() {
// (...)
});
//2players
findViewById(R.id.two_player).setOnClickListener(new View.OnClickListener() {
// (...)
});
编辑：正如我在logcat中看到的，并且Spidy在评论中也正确指出，您需要在清单中声明您的活动。
11-15 23:45:28.227: E/AndroidRuntime(6056): FATAL EXCEPTION: main
11-15 23:45:28.227: E/AndroidRuntime(6056): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.wouter.testjk/com.wouter.testjk.TicTacToeGame}; have you declared this activity in your AndroidManifest.xml?
EDIT2 ：从日志中可以清楚地看到：
11-16 00:39:09.867: E/AndroidRuntime(7124): FATAL EXCEPTION: main
11-16 00:39:09.867: E/AndroidRuntime(7124): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.wouter.testjk/com.wouter.testjk.TicTacToeGame}: java.lang.ClassCastException: com.wouter.testjk.TicTacToeGame cannot be cast to android.app.Activity
您正在尝试将类TicTacToeGame实例化为活动，但事实并非如此。我猜你想去MainActivity。在这种情况下，您必须将您的意图更改为此类
Intent intent = new Intent(MainMenuScreen.this, MainActivity.class);
希望它有所帮助。