import android.content.Context;
import android.content.SharedPreferences;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.SurfaceHolder.Callback;public class MySurfaceView extends SurfaceView implements Callback, Runnable {private SurfaceHolder sfh;private Paint paint;private Thread th;private boolean flag;private Canvas canvas;private int screenW, screenH;//记录当前圆形所在九宫格的位置下标private int creentTileIndex;//声明一个SharedPreferences对象private SharedPreferences sp;/*** SurfaceView初始化函数*/public MySurfaceView(Context context) {super(context);sfh = this.getHolder();sfh.addCallback(this);paint = new Paint();paint.setColor(Color.BLACK);paint.setAntiAlias(true);setFocusable(true);//通过Context获取SharedPreference实例sp = context.getSharedPreferences("SaveName", Context.MODE_PRIVATE);//每次程序运行时获取圆形的下标int tempIndex = sp.getInt("CirCleIndex", -1);//判定如果返回-1 说明没有找到，就不对当前记录圆形的变量进行赋值if (tempIndex != -1) {creentTileIndex = tempIndex;}}/*** SurfaceView视图创建，响应此函数*/@Overridepublic void surfaceCreated(SurfaceHolder holder) {screenW = this.getWidth();screenH = this.getHeight();flag = true;//实例线程th = new Thread(this);//启动线程
        th.start();}/*** 游戏绘图*/public void myDraw() {try {canvas = sfh.lockCanvas();if (canvas != null) {canvas.drawColor(Color.WHITE);paint.setColor(Color.BLACK);paint.setStyle(Style.STROKE);//绘制九宫格(将屏幕九等份)//得到每个方格的宽高int tileW = screenW / 3;int tileH = screenH / 3;for (int i = 0; i < 3; i++) {for (int j = 0; j < 3; j++) {canvas.drawRect(i * tileW, j * tileH, (i + 1) * tileW, (j + 1) * tileH, paint);}}//根据得到的圆形下标位置进行绘制相应的方格中
                paint.setStyle(Style.FILL);canvas.drawCircle(creentTileIndex % 3 * tileW + tileW / 2, creentTileIndex / 3 * tileH + tileH / 2, 30, paint);//操作说明canvas.drawText("上键：保存游戏", 0, 20, paint);canvas.drawText("下键：读取游戏", 110, 20, paint);canvas.drawText("左右键：移动圆形", 215, 20, paint);}} catch (Exception e) {// TODO: handle exception} finally {if (canvas != null)sfh.unlockCanvasAndPost(canvas);}}/*** 触屏事件监听*/@Overridepublic boolean onTouchEvent(MotionEvent event) {return true;}/*** 按键事件监听*/@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {//上键保存游戏状态if (keyCode == KeyEvent.KEYCODE_DPAD_UP) {sp.edit().putInt("CirCleIndex", creentTileIndex).commit();//下键读取游戏状态} else if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) {int tempIndex = sp.getInt("CirCleIndex", -1);if (tempIndex != -1) {creentTileIndex = tempIndex;}//圆形的移动} else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {if (creentTileIndex > 0) {creentTileIndex -= 1;}} else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) {if (creentTileIndex < 8) {creentTileIndex += 1;}}return super.onKeyDown(keyCode, event);}/*** 游戏逻辑*/private void logic() {}@Overridepublic void run() {while (flag) {long start = System.currentTimeMillis();myDraw();logic();long end = System.currentTimeMillis();try {if (end - start < 50) {Thread.sleep(50 - (end - start));}} catch (InterruptedException e) {e.printStackTrace();}}}/*** SurfaceView视图状态发生改变，响应此函数*/@Overridepublic void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {}/*** SurfaceView视图消亡时，响应此函数*/@Overridepublic void surfaceDestroyed(SurfaceHolder holder) {flag = false;}
}

    /*** 按键事件监听*/@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {//用到的读出、写入流FileOutputStream fos = null;FileInputStream fis = null;DataOutputStream dos = null;DataInputStream dis = null;//上键保存游戏状态if (keyCode == KeyEvent.KEYCODE_DPAD_UP) {try {// 从SDcard中写入数据// 试探终端是否有sdcard! 并且探测SDCard是否处于被移除的状态if (Environment.getExternalStorageState() != null && !Environment.getExternalStorageState().equals("removed")) {Log.v("yc", "写入，有SD卡");File path = new File("/sdcard/yc");// 创建目录  File f = new File("/sdcard/yc/save.yc");// 创建文件  if (!path.exists()) {// 目录存在返回true  path.mkdirs();// 创建一个目录
                    }if (!f.exists()) {// 文件存在返回true  f.createNewFile();// 创建一个文件
                    }fos = new FileOutputStream(f);// 将数据存入sd卡中  } else {//默认系统路径//利用Activity实例打开流文件得到一个写入流fos = MainActivity.instance.openFileOutput("save.yc", Context.MODE_PRIVATE);}//将写入流封装在数据写入流中dos = new DataOutputStream(fos);//写入一个int类型(将圆形所在格子的下标写入流文件中)
                dos.writeInt(creentTileIndex);} catch (FileNotFoundException e) {// TODO Auto-generated catch block
                e.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch block
                e.printStackTrace();} finally {//即使保存时发生异常，也要关闭流try {if (fos != null)fos.close();if (dos != null)dos.close();} catch (IOException e) {// TODO Auto-generated catch block
                    e.printStackTrace();}}//下键读取游戏状态} else if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) {boolean isHaveSDCard = false;// 从SDcard中读取数据// 试探终端是否有sdcard! 并且探测SDCard是否处于被移除的状态if (Environment.getExternalStorageState() != null && !Environment.getExternalStorageState().equals("removed")) { Log.v("yc", "读取，有SD卡");isHaveSDCard = true;}try {if (isHaveSDCard) {File path = new File("/sdcard/yc");// 创建目录  File f = new File("/sdcard/yc/save.yc");// 创建文件  if (!path.exists()) {// 目录存在返回truereturn false;} else {if (!f.exists()) {// 文件存在返回true  return false;}}fis = new FileInputStream(f);// 将数据存入sd卡中  } else {if (MainActivity.instance.openFileInput("save.yc") != null) {//利用Activity实例打开流文件得到一个读入流fis = MainActivity.instance.openFileInput("save.yc");}}//将读入流封装在数据读入流中dis = new DataInputStream(fis);//读出一个Int类型赋值与圆形所在格子的下标creentTileIndex = dis.readInt();} catch (FileNotFoundException e) {// TODO Auto-generated catch block
                e.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch block
                e.printStackTrace();} finally {//即使读取时发生异常，也要关闭流try {if (fis != null)fis.close();if (dis != null)dis.close();} catch (IOException e) {// TODO Auto-generated catch block
                    e.printStackTrace();}}} else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {if (creentTileIndex > 0) {creentTileIndex -= 1;}} else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) {if (creentTileIndex < 8) {creentTileIndex += 1;}}return super.onKeyDown(keyCode, event);}

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;public class MySQLiteOpenHelper extends SQLiteOpenHelper {public final static int VERSION = 1;// 版本号public final static String TABLE_NAME = "INDEXINFO";// 表名public final static String Param1 = "ID";// 后面ContentProvider使用public final static String Param2 = "TITLEINDEX";public final static String DATABASE_NAME = "yc.db";public MySQLiteOpenHelper(Context context) {// 在Android 中创建和打开一个数据库都可以使用openOrCreateDatabase 方法来实现，// 因为它会自动去检测是否存在这个数据库，如果存在则打开，不过不存在则创建一个数据库；// 创建成功则返回一个 SQLiteDatabase对象，否则抛出异常FileNotFoundException。// 下面是来创建一个名为"DATABASE_NAME"的数据库，并返回一个SQLiteDatabase对象super(context, DATABASE_NAME, null, VERSION);}/*** 在数据库第一次生成的时候会调用这个方法，一般我们在这个方法里边生成数据库表;*/@Overridepublic void onCreate(SQLiteDatabase db) {// SQL语句,这里是创建一个表明为yc的表，有2个参数ID和TITLEINDEX，其中ID为主键，自增。具体说明如下：// CREATE TABLE 创建一张表 然后后面是表名// 然后表的列，第一个是id 方便操作数据,int类型// PRIMARY KEY 是指主键 这是一个int型,用于唯一的标识一行;// AUTOINCREMENT 表示数据库会为每条记录的key加一，确保记录的唯一性;// 最后加入一列文本 int类型参数TITLEINDEX
String str_sql = "CREATE TABLE " + TABLE_NAME + "(" + Param1+ " INTEGER PRIMARY KEY AUTOINCREMENT," + Param2+ "  INTEGER );";// execSQL()方法是执行一句sql语句
        db.execSQL(str_sql);}@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {// 一般默认情况下，当我们插入 数据库就立即更新// 当数据库需要升级的时候，Android 系统会主动的调用这个方法。// 一般我们在这个方法里边删除数据表，并建立新的数据表，// 当然是否还需要做其他的操作，完全取决于游戏需求。Log.v("y_Hint", "onUpgrade");}}