笔者最近开始沦陷于android，从开始入门到现在已经快半个月的时间，于是便写一个较综合，用到了数据库，多线程操作，以及时钟的添加和停止消除，activity之间的动画转换等，适用于初学者学以致用的小游戏来巩固自己的知识，有需要的读者可以去我的资源库中下载源码。
以下是主游戏程序的部分代码，带有笔者的丰富注释：
package com.example.pingping_game1;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;
import com.example.pingping_game1.Tools.JudgeAnswer;
import com.example.pingping_game1.Tools.MakeIntToString;
import com.example.pingping_game1.getsqldatabase.getquestion;
import com.example.pingping_game1.getsqldatabase.getsqldatabase;
import android.R.integer;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.widget.SimpleCursorAdapter.ViewBinder;
import android.text.style.BulletSpan;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
public class GameActivity1 extends Activity implements OnClickListener {
public GameActivity1() {
// TODO Auto-generated constructor stub
}
private TextView stateView, stateprogressView, questionView; // 各种状态信息
private Button aswA, aswB, aswC, aswD; // 4个答案选项按钮
private ProgressBar timeprogress; // 时间进度条
private int wr = 0; // 答错的题数
private int tr = 0; // 答对的题数
private int qnumber = 1; // 当前题目的题号
private int statenum = 1; // 当前关数
private final static int sum = 5; // 总共需要答对的题数
private final static int wrsum = 3; // 总共可答错的次数
private final static int LASTSTATE = 2; // 最终关数
private final static int CHANGE_QUESTION = 1; // 变换游戏界面题目的标识符
private final static int SETPROGRESS = 2; // 表示设置时间进度条的标识符
private final static int RESTARTGAME = 3; // 重新开始游戏的标识符
private static boolean OVERTIME = false; // 是否已经超时标识符
// 用mainMap来存储该题对应的信息
private Map<String, String> mainMap = new HashMap<String, String>();
private boolean flag = false; // 此题是否答对
private int progressBarValue = 0; // 表示时间进度条的进度
private final static int TOTALPROGRESS = 30; // 设置时间进度条的最大值
private Timer timer; // 设置一个定时器
private Random random = new Random(); // 设置一个随机数来随机抽取题目
private int[] QuestionNum = new int[8]; // 每一关题目的序列号
// 用线程和handler来处理消息
private Handler handler = new Handler() {
@Override
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case CHANGE_QUESTION:
mainMap = (Map<String, String>) msg.obj;
stateView.setText("第" + statenum + "关");
stateprogressView.setText(tr + "/" + sum + "
" + wr + "/"
+ wrsum);
questionView.setText(qnumber + ":" + mainMap.get("questions"));
aswA.setText("A." + mainMap.get("a"));
aswB.setText("B." + mainMap.get("b"));
aswC.setText("C." + mainMap.get("c"));
aswD.setText("D." + mainMap.get("d"));
break;
case SETPROGRESS:
int progress = (Integer) msg.obj;
timeprogress.setProgress(progress);
break;
case RESTARTGAME:
timer.cancel();
OVERTIME = true; // 设置为超时
new ShowTimeOverDialog().showdialog();
break;
}
};
};
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.ggg);
stateView = (TextView) this.findViewById(R.id.statetext);
stateprogressView = (TextView) this.findViewById(R.id.stateprogress);
questionView = (TextView) this.findViewById(R.id.questiontext);
aswA = (Button) this.findViewById(R.id.aswA);
aswA.setAlpha((float) 0.5);
aswA.setOnClickListener(this);
aswB = (Button) this.findViewById(R.id.aswB);
aswB.setAlpha((float) 0.5);
aswB.setOnClickListener(this);
aswC = (Button) this.findViewById(R.id.aswC);
aswC.setAlpha((float) 0.5);
aswC.setOnClickListener(this);
aswD = (Button) this.findViewById(R.id.aswD);
aswD.setAlpha((float) 0.5);
aswD.setOnClickListener(this);
timeprogress = (ProgressBar) this.findViewById(R.id.progressBar1);
timeprogress.setMax(TOTALPROGRESS);
InitialQNum(); // 初始化题号序列数组
new Thread(new StartGame()).start();
timer = new Timer(true);
timer.schedule(new TimerTask() {
@Override
public void run() {
// TODO Auto-generated method stub
if (progressBarValue == TOTALPROGRESS) {
// 超出游戏时间，弹出对话框提示玩家
handler.sendEmptyMessage(RESTARTGAME);
} else {
// 将信息传送给handler来更新进度条
Message message = Message.obtain();
message.obj = progressBarValue;
message.what = SETPROGRESS;
handler.sendMessage(message);
// 时间进度自增
progressBarValue++;
}
}
}, 0, 1000);
}
// 初始化QuestionNum数组,随机抽取
private void InitialQNum() {
int count = 0;
while (count < 8) {
boolean flag1 = true; // 标志是否重复
int cur = Math.abs(random.nextInt() % 8) + 1;
for (int i = 0; i < count; i++) {
if (cur == QuestionNum[i]) {
flag1 = false;
break;
}
}
if (flag1) {
QuestionNum[count] = cur;
count++;
}
}
}
public class StartGame implements Runnable {
@Override
public void run() {
// TODO Auto-generated method stub
getquestion getq = new getquestion(GameActivity1.this);
Map<String, String> map = new HashMap<String, String>();
// 用MakeIntToString工具类来转换字符，并选择对应题目
String str = MakeIntToString.getString(QuestionNum[qnumber - 1]
+ (statenum - 1) * 8);
String str1 = String.valueOf(statenum);
String[] strs = new String[] { str, str1 };
map = getq.getquestionMap(strs);
// 用message来向主线程传递信息并处理
Message message = Message.obtain();
message.obj = map; // 将map信息放入message中
message.what = CHANGE_QUESTION; // 设定message的标示符
handler.sendMessage(message); // 向主线程中的handler发送信息
}
}
// 游戏进入下一关
private void GoToNextState() {
if (OVERTIME) {
return;
}
timer.cancel(); // 关闭时钟
statenum++; // 关数自增
qnumber = 1; // 题号重置为1
wr = 0; // 答错重置
tr = 0; // 答对重置
InitialQNum(); // 重新抽取随机数组为题目序列
progressBarValue = 0; // 将时间进度重置为0
Toast.makeText(GameActivity1.this, "恭喜你进入第" + statenum + "关！", 0)
.show();
new Thread(new StartGame()).start();
timer = null;
timer = new Timer();
timer.schedule(new TimerTask() {
@Override
public void run() {
// TODO Auto-generated method stub
if (progressBarValue == TOTALPROGRESS) {
// 超出游戏时间，弹出对话框提示玩家
handler.sendEmptyMessage(RESTARTGAME);
} else {
// 将信息传送给handler来更新进度条
Message message = Message.obtain();
message.obj = progressBarValue;
message.what = SETPROGRESS;
handler.sendMessage(message);
// 时间进度自增
progressBarValue++;
}
}
}, 0, 1000);
}
// 重新开始游戏
private class RestartGame {
public RestartGame() {
}
public void restart() {
statenum = 1;
qnumber = 1; // 重置题号为1
wr = 0;
tr = 0;
progressBarValue = 0;
InitialQNum();
timer = null;
timer = new Timer(true);
timer.schedule(new TimerTask() {
@Override
public void run() {
// TODO Auto-generated method stub
if (progressBarValue == TOTALPROGRESS) {
// 超出游戏时间，弹出对话框提示玩家
handler.sendEmptyMessage(RESTARTGAME);
} else {
// 将信息传送给handler来更新进度条
Message message = Message.obtain();
message.obj = progressBarValue;
message.what = SETPROGRESS;
handler.sendMessage(message);
// 时间进度自增
progressBarValue++;
}
}
}, 0, 1000);
new Thread(new StartGame()).start();
}
}
// 游戏超时弹出对话框
public class ShowTimeOverDialog {
public ShowTimeOverDialog() {
}
public void showdialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(
GameActivity1.this);
builder.setTitle("提示");
builder.setMessage("对不起，你的智商太低，没有在规定时间内完成答题！");
builder.setPositiveButton("重新开始",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
OVERTIME = false; // 设置为不超时
new RestartGame().restart();
}
});
builder.setNegativeButton("主界面",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
GameActivity1.this.finish();
}
});
builder.setCancelable(false);
Dialog dialog = builder.create();
dialog.show();
}
}
// 游戏失败时弹出的对话框
public class ShowGameOverDialog {
public ShowGameOverDialog() {
}
public void showdialog() {
timer.cancel();
AlertDialog.Builder builder = new AlertDialog.Builder(
GameActivity1.this);
builder.setTitle("提示");
builder.setMessage("对不起，愚蠢的人类，你闯关失败了！");
builder.setPositiveButton("重新闯关",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
new RestartGame().restart();
}
});
builder.setNegativeButton("主界面",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
GameActivity1.this.finish();
}
});
builder.setCancelable(false);
Dialog dialog = builder.create();
dialog.show();
}
}
private void GoOverGame() {
if (OVERTIME) {
return;
}
timer.cancel();
AlertDialog.Builder builder = new AlertDialog.Builder(
GameActivity1.this);
builder.setTitle("提示");
builder.setMessage("恭喜您通关！！~您的智商真是高!");
builder.setPositiveButton("谦让谦让",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
GameActivity1.this.finish();
}
});
builder.setCancelable(false);
Dialog dialog = builder.create();
dialog.show();
}
@Override
public void onBackPressed() { // 按返回键时触发事件
// TODO Auto-generated method stub
super.onBackPressed();
timer.cancel(); // 将时钟取消并置空
timer = null;
GameActivity1.this.finish();
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.aswA:
// 返回当前是否答对
flag = new JudgeAnswer(GameActivity1.this).judgeit("a", mainMap);
if (flag) { // 如果答对，对应参数进行改变
tr++;
qnumber++;
if (tr == sum) {
if (statenum == LASTSTATE) {
GoOverGame();
} else {
GoToNextState();
}
} else {
new Thread(new StartGame()).start();
}
} else {
wr++;
qnumber++;
if (wr == wrsum) { // 当错误题量达到上限，弹出游戏结束对话框
new ShowGameOverDialog().showdialog();
} else { // 否则更换题目
new Thread(new StartGame()).start();
}
}
break;
case R.id.aswB:
flag = new JudgeAnswer(GameActivity1.this).judgeit("b", mainMap);
if (flag) {
tr++;
qnumber++;
if (tr == sum) {
if (statenum == LASTSTATE) {
GoOverGame();
} else {
GoToNextState();
}
} else {
new Thread(new StartGame()).start();
}
} else {
wr++;
qnumber++;
if (wr == wrsum) {
new ShowGameOverDialog().showdialog();
} else {
new Thread(new StartGame()).start();
}
}
break;
case R.id.aswC:
flag = new JudgeAnswer(GameActivity1.this).judgeit("c", mainMap);
if (flag) {
tr++;
qnumber++;
if (tr == sum) {
if (statenum == LASTSTATE) {
GoOverGame();
} else {
GoToNextState();
}
} else {
new Thread(new StartGame()).start();
}
} else {
wr++;
qnumber++;
if (wr == wrsum) {
new ShowGameOverDialog().showdialog();
} else {
new Thread(new StartGame()).start();
}
}
break;
case R.id.aswD:
flag = new JudgeAnswer(GameActivity1.this).judgeit("d", mainMap);
if (flag) {
tr++;
qnumber++;
if (tr == sum) {
if (statenum == LASTSTATE) {
GoOverGame();
} else {
GoToNextState();
}
} else {
new Thread(new StartGame()).start();
}
} else {
wr++;
qnumber++;
if (wr == wrsum) {
new ShowGameOverDialog().showdialog();
} else {
new Thread(new StartGame()).start();
}
}
break;
}
}
}