写的晚了，在分工个Z市高中的一个成绩查询的系统，原系统居然是用VB写的，我不得不佩服原本写系统的那位哥们真能耐得住。
明天搭建下SVN就等着先发project款然后開始项目了。想想有工资进账，心里也为我那干瘪的钱包小兴奋了一把。
闲话不多说了。今天我们来分析下这个小游戏的工作原理以及核心代码的解析：
工作原理：
“主界面”以及“关卡界面”不多说了。这两个是直接写了xml文件，
然后，我们在“游戏界面”的搭建是：
用java代码动态生成了这个界面。在界面中通过service层还有dao层的方法，得到了所在关卡相应的全部成语对象，然后把这些对象每一个都分解成4个word对象，然后放入到界面中。当点击的时候，推断点击的四个word能不可以组成一个成语（依据他们的级别还有他们点击的顺序推断他们能不能组成一个成语）。
假设可以组成一个成语的话。弹出一个框框。显示这个成语的解释、出处等等信息。
我们先看cn.idiomlianliankan.dao包里边的内容：
GameDaoImpl.java：
package cn.idiomlianliankan.dao.impl;import java.util.ArrayList;import java.util.List;import android.content.Context;import android.database.Cursor;import android.database.sqlite.SQLiteDatabase;import android.util.Log;import cn.idiomlianliankan.dao.GameDao;import cn.idiomlianliankan.domain.CheckPoint;import cn.idiomlianliankan.domain.Idiom;import cn.idiomlianliankan.domain.Word;public class GameDaoImpl implements GameDao { private SQLiteDatabase db; public GameDaoImpl(){} /** * 构造一个GameDaoImpl对象，传入数据库输出流 * @param context 传入上下文对象 * @param db 数据库输出流 */ public GameDaoImpl(Context context,SQLiteDatabase db) { this.db = db; } /** * 添加一个成语，把要加入的成语对象跟关卡对象绑定在一起 * @param checkpoint 关卡对象 * @param idiom 成语对象 */ @Override public void addIdiom(CheckPoint checkpoint,Idiom idiom) { //插入checkpoint表 //推断checkpoint表里边有没有这个id，假设有就不插入，没有就插入 Cursor cursor = db.rawQuery("select * from checkpoint where checkId=? ", new String[]{String.valueOf(checkpoint.getCheckId())}); if(!cursor.moveToNext()){ db.execSQL("insert into checkpoint(checkId) values(?)", new Object[]{checkpoint.getCheckId()}); } //插入idiom表 db.execSQL("insert into idiom( idiomContent , idiomExplain , idiomProv , foreignCheckId) values(?,?,?
,?)", new Object[]{idiom.getIdiomContent(),idiom.getIdiomExplain(),idiom.getIdiomProv(),idiom.getCheckpoint().getCheckId()}); //插入word表 idiom = getIdiom(idiom.getIdiomContent()); addWord(idiom); Log.i("test", "4"); } /** * 把成语分解成四个word对象,然后插入到word表中 * @param idiom 把idiom成语分成4个word对象插入word表中 */ public void addWord(Idiom idiom){ Log.i("test", "5"); String idiomContent = idiom.getIdiomContent(); for(int i =1;i<=4;i++){ char wordContent = idiomContent.charAt(i-1); db.execSQL("insert into word(wordContent,wordLevel,foreignIdiomId) values(?,?,?)",new Object[]{wordContent , i ,idiom.getIdiomId()}); } } /** * 依据idiomContent得到数据库中的idiom对象 * @param content 成语的内容 */ public Idiom getIdiom(String content){ Idiom idiom = new Idiom(); Cursor cursor = db.rawQuery("select * from idiom where idiomContent=?", new String[]{content}); if(cursor!=null && cursor.moveToFirst()){ int idiomId = cursor.getInt(cursor.getColumnIndex("idiomId")); String idiomContent = content; String idiomExplain = cursor.getString(cursor.getColumnIndex("idiomExplain")); String idiomProv = cursor.getString(cursor.getColumnIndex("idiomProv")); idiom.setIdiomId(idiomId); idiom.setIdiomContent(idiomContent); idiom.setIdiomExplain(idiomExplain); idiom.setIdiomProv(idiomProv); } return idiom; } /** * 依据idiomId得到数据库中的idiom对象 * @param idiomId 成语的id */ public Idiom getIdiom(int idiomId){ Idiom idiom = new Idiom(); idiom.setIdiomId(idiomId); Cursor cursor = db.rawQuery("select * from idiom where idiomId=?
", new String[]{String.valueOf(idiomId)}); if(cursor!=null && cursor.moveToFirst()){ String idiomContent = cursor.getString(cursor.getColumnIndex("idiomContent")); String idiomExplain = cursor.getString(cursor.getColumnIndex("idiomExplain")); String idiomProv = cursor.getString(cursor.getColumnIndex("idiomProv")); idiom.setIdiomContent(idiomContent); idiom.setIdiomExplain(idiomExplain); idiom.setIdiomProv(idiomProv); } return idiom; } /** * 返回某一关卡的Idiom的List集合 * @param cp 关卡对象 */ @Override public List<Idiom> getIdioms(CheckPoint cp) { List<Idiom> idioms = new ArrayList<Idiom>(); Log.i("lujing", "dao层"); Cursor cursor = db.rawQuery("select * from idiom where foreignCheckId=?", new String[]{String.valueOf(cp.getCheckId())}); while(cursor.moveToNext()){ int idiomId = cursor.getInt(cursor.getColumnIndex("idiomId")); String idiomContent = cursor.getString(cursor.getColumnIndex("idiomContent")); String idiomExplain = cursor.getString(cursor.getColumnIndex("idiomExplain")); String idiomProv = cursor.getString(cursor.getColumnIndex("idiomProv")); Idiom idiom = new Idiom(idiomExplain, idiomProv, idiomContent, cp); idiom.setIdiomId(idiomId); idioms.add(idiom); } cursor.close(); return idioms; } /** * 通过Idiom对象。从数据库中得到四个Word对象 * @param idiom 通过idiom获得4个word对象 */ @Override public List<Word> getWordsByIdiom(Idiom idiom) { List<Word> words = new ArrayList<Word>(); Cursor cursor = db.rawQuery("select * from word where foreignIdiomId=?", new String[]{String.valueOf(idiom.getIdiomId())}); while(cursor.moveToNext()){ int wordId = cursor.getInt(cursor.getColumnIndex("wordId")); String wordContent = cursor.getString(cursor.getColumnIndex("wordContent")); int wordLevel = cursor.getInt(cursor.getColumnIndex("wordLevel")); Word word = new Word(wordLevel, wordContent.charAt(0), idiom); word.setWordId(wordId); words.add(word); } cursor.close(); return words; } /** * 通过id找到word对象 * @param id 通过word的id找到word对象 */ @Override public Word findWord(int id) { Word word = new Word(); word.setWordId(id); Cursor cursor = db.rawQuery("select * from word where wordId=?
", new String[]{String.valueOf(id)}); while(cursor.moveToNext()){ String wordContent = cursor.getString(cursor.getColumnIndex("wordContent")); int wordLevel = cursor.getInt(cursor.getColumnIndex("wordLevel")); int foreignIdiomId = cursor.getInt(cursor.getColumnIndex("foreignIdiomId")); Idiom idiom = new Idiom(); idiom = getIdiom(foreignIdiomId); word.setIdiom(idiom); word.setWordContent(wordContent.charAt(0)); word.setWordLevel(wordLevel); } return word; } }
然后，我们看下service层的代码：package cn.idiomlianliankan.service.impl;import java.util.ArrayList;import java.util.Collections;import java.util.Iterator;import java.util.List;import android.content.*;import android.database.sqlite.SQLiteDatabase;import cn.idiomlianliankan.dao.impl.GameDaoImpl;import cn.idiomlianliankan.domain.CheckPoint;import cn.idiomlianliankan.domain.Idiom;import cn.idiomlianliankan.domain.Word;import cn.idiomlianliankan.initialize.GameConfigue;import cn.idiomlianliankan.service.GameService;public class GameServiceImpl implements GameService { private GameDaoImpl gamedaoImpl; private SQLiteDatabase db; public GameServiceImpl(Context context,SQLiteDatabase db){ gamedaoImpl = new GameDaoImpl(context,db); this.db = db; } /** * 返回某一关全部成语相应的word对象集合 */ @Override public List getWords(List idioms) { List words = new ArrayList (); Idiom idiom = new Idiom(); Iterator idiomIterator = idioms.iterator(); while (idiomIterator.hasNext()) { //得到成语对象 idiom = (Idiom) idiomIterator.next(); if(idiom != null){ //定义一个word的list集合，把一个成语获得的4个word对象加入进入 List wordList = new ArrayList (); wordList = gamedaoImpl.getWordsByIdiom(idiom); Word word = new Word(); Iterator wordIterator = wordList.iterator(); while(wordIterator.hasNext()){ word = (Word) wordIterator.next(); words.add(word); } } } Collections.shuffle(words); return words; } /** * 推断方块是否相连 */ @Override public boolean link(Word p1, Word p2, Word p3, Word p4) { if((p1.getIdiom().getIdiomId() == p2.getIdiom().getIdiomId()) && (p3.getIdiom().getIdiomId() == p4.getIdiom().getIdiomId())){ if((p1.getWordLevel() == 1) && (p2.getWordLevel() == 2) && (p3.getWordLevel() == 3) && (p4.getWordLevel() == 4)){ return true; } } return false; }} 最后是“游戏界面”的代码： package cn.idiomlianliankan.game;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import cn.idiomlianliankan.dao.GameDao;import cn.idiomlianliankan.dao.impl.GameDaoImpl;import cn.idiomlianliankan.domain.CheckPoint;import cn.idiomlianliankan.domain.Idiom;import cn.idiomlianliankan.domain.Word;import cn.idiomlianliankan.initialize.GameConfigue;import cn.idiomlianliankan.service.GameService;import cn.idiomlianliankan.service.impl.GameServiceImpl;import android.app.Activity;import android.content.Intent;import android.database.sqlite.SQLiteDatabase;import android.graphics.Color;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.LinearLayout;import android.widget.TextView;import android.widget.Toast;public class GameViewActivity extends Activity { //定义数据库对象 SQLiteDatabase db; //定义service、dao层对象 private GameService service; private GameDao dao; private TextView textView; //定义一个word的list集合 private List ls = new ArrayList (); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //初始化数据库对象。打开数据库 db = SQLiteDatabase.openOrCreateDatabase(this.getFilesDir().toString()+ ("/lianliankan.db"), null); //初始化service层对象 service = new GameServiceImpl(this,db); //初始化dao层对象 dao = new GameDaoImpl(this,db); //建立一个线性布局 LinearLayout gameView = new LinearLayout(this); gameView.setOrientation(LinearLayout.HORIZONTAL); //由createView()函数创建游戏界面 gameView = createView(gameView); gameView.setPadding(gameView.getLeft()+130, gameView.getTop()+130, gameView.getRight(), gameView.getBottom()); setContentView(gameView); } /** * 创建界面的函数 * @param 传递LinearLayout对象 * @return 返回一个创建好界面的LinearLayout对象 */ private LinearLayout createView(LinearLayout lay) { //游戏初始资源配置 int x = GameConfigue.getxSize(); int y = GameConfigue.getySize(); int height = GameConfigue.getPieceHeight(); int width = GameConfigue.getPieceWidth(); //这里仅仅是设置了第一关 CheckPoint cp = new CheckPoint(1); //获得idioms对象，然后再获得words对象 List idioms = dao.getIdioms(cp); List words = service.getWords(idioms); Iterator it = words.iterator(); Word singleword = new Word(); for(int i = 1; i< x+1;i++){ final LinearLayout layView=new LinearLayout(this); layView.setOrientation(LinearLayout.VERTICAL); for(int j = 1;j 详细的解释写在了代码中，能够看下。 事实上工作原理写完了。这个程序应该就非常好理解了。
写出来仅仅是快慢的问题。
有不懂的能够留言~ ~ ~