Android开发系列（十六）（Android小游戏成语连连看第二篇）

弱龄寄事外，委怀在琴书。这篇文章主要讲述Android开发系列（十六）：Android小游戏成语连连看第二篇相关的知识，希望能为你提供帮助。
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(intidiomId){ 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 SQLiteDatabasedb; //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。
【Android开发系列（十六）（Android小游戏成语连连看第二篇）】有不懂的能够留言~ ~ ~