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<Word> getWords(List<Idiom> idioms) {
List<Word> words = new ArrayList<Word>();
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<Word> wordList = new ArrayList<Word>();
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<Word> ls = new ArrayList<Word>(); @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<Idiom> idioms = dao.getIdioms(cp);
List<Word> 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<y+1; j++){
if(it.hasNext())
{
singleword = (Word)it.next();
}
TextView mTextView = new TextView(this);
mTextView.setHeight(height);
mTextView.setWidth(width); //这里的text就是这个word对象在数据库中的content
mTextView.setText(singleword.getWordContent()+"");
//这里的id就是这个word对象在数据库的id
mTextView.setId(singleword.getWordId()); mTextView.setTextSize(35);
mTextView.setTextColor(Color.GREEN);
mTextView.setBackgroundDrawable(getResources().getDrawable(R.drawable.back)); //设置点击事件监听
mTextView.setOnClickListener(new TextviewOnclickListener()); mTextView.setPadding(mTextView.getLeft()+18, mTextView.getTop()+7, mTextView.getRight(), mTextView.getBottom());
layView.addView(mTextView);
}
lay.addView(layView);
}
return lay;
}
private final class TextviewOnclickListener implements View.OnClickListener{
Iterator it = ls.iterator();
boolean isLink = false; //首先推断ls集合有几个word对象
//有三个对象的话，推断此次点击的和另外三个是否可以链接
//小于三个对象的话。就加入
@Override
public void onClick(View v) {
if(ls.size() == 3)
{
//要推断这四个是否相连
//假设相连的话。消去。然后调用IdiomDetailsActivity界面
//假设不相连的话，取消全部的背景色
Iterator it = ls.iterator(); Word w1 = new Word();
Word w2 = new Word();
Word w3 = new Word();
Word w4 = new Word(); int id = v.getId();
w4 = dao.findWord(id); while(it.hasNext()){
w1 = (Word) it.next();
w2 = (Word) it.next();
w3 = (Word) it.next();
} isLink = service.link(w1, w2, w3, w4);
if(isLink){ //可以组成一个成语
int idiomId = w1.getIdiom().getIdiomId(); setTextView(w1.getWordId());
textView.setVisibility(View.INVISIBLE);
setTextView(w2.getWordId());
textView.setVisibility(View.INVISIBLE);
setTextView(w3.getWordId());
textView.setVisibility(View.INVISIBLE);
setTextView(w4.getWordId());
textView.setVisibility(View.INVISIBLE); //当得到正确的成语的时候，通过这个成语的id从数据库中获得这个成语的全部信息,然后弹出界面显示
Intent intent = new Intent();
intent.setClass(getApplicationContext(), IdiomDetialsActivity.class);
Bundle bundle = new Bundle();
bundle.putString("id",idiomId+"");
intent.putExtra("bd", bundle);
startActivity(intent); }else{
setTextView(w1.getWordId());
textView.setBackgroundDrawable(getResources().getDrawable(R.drawable.back));
setTextView(w2.getWordId());
textView.setBackgroundDrawable(getResources().getDrawable(R.drawable.back));
setTextView(w3.getWordId());
textView.setBackgroundDrawable(getResources().getDrawable(R.drawable.back)); }
ls.clear();
}else{
v.setBackgroundDrawable(getResources().getDrawable(R.drawable.backfu));
//依据这个方块的id查询得到一个word对象
//把查询得到的word对象加入进ls中
int id = v.getId();
Word word = new Word();
word = dao.findWord(id);
ls.add(word);
}
}
} private void setTextView(int id){
textView = (TextView) this.findViewById(id);
} }
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~ ~ ~