? 這個第四個實例，我只是單純的把j2me的代碼換成android的，所以屏幕的大小的適應(yīng)性和好不好看，我都沒有考慮。

下面給出第四個實例的MainView的代碼

效果圖:

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    package com.wjh.demon_4;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.KeyEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.SurfaceHolder.Callback;

public class MainView extends SurfaceView implements Callback,Runnable{
	int keyCode = 0;
	String keyAction = "";
	Thread gameThread = null;
	boolean isGame = true;
	SurfaceHolder holder = null;
	public char m_achWords[][] = 				//存儲原始字符矩陣
		{	{'H',	'R',	'T',	'W',	'T'},
			{'E',	'I',	'H',	'O',	'H'},
			{'L',	'G',	'I',	'R',	'R'},
			{'L',	'H',	'N',	'L',	'E'},
			{'O',	'T',	'G',	'D',	'E'} 	};
	public int m_nCurLine	= 0;				//記錄當(dāng)前行
	public int m_anDis[] 	= { 0,1,2,3,4 };
	public boolean m_bGameOK = false;			//組合成功的標志
	public MainView(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
		setFocusable(true);
		getHolder().addCallback(this);
		holder = this.getHolder();
		
	}
	@Override
	public void run() {
		// TODO Auto-generated method stub
		while(isGame)
		{
			input();
			logic();
			doDraw();
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}		
		}
		
	}
	//開始游戲主線程
	public void start()
	{
		if(gameThread == null)
		{
		gameThread = new Thread(this);
		gameThread.start();
		}
	}
	//停止游戲主線程
	public void stop()
	{
		isGame = false;
		if(gameThread != null)
		{
			try {
				gameThread.join();
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	//輸入判斷
	public void input()
	{
		
	}
	//邏輯判斷
	public void logic()
	{
		if( m_bGameOK )
			return;
		m_bGameOK = true;
		for( int n = 0; n < 5; n ++ ){
			if( m_anDis[n] != 0 ){
				m_bGameOK = false;
				break;
			}
		}
	}
	public void doDraw()
	{
		Canvas c = null;
		try
		{
		c = holder.lockCanvas();
		synchronized (holder) {
			paint(c);
		}
		}finally{
			if(c != null)
			{
			holder.unlockCanvasAndPost(c);
			}
		}
	}
	//畫圖
	public void paint(Canvas canvas)
	{
		Paint backGround = new Paint();
		backGround.setColor(Color.BLACK);
		//清屏
		canvas.drawRect(0, 0, getWidth(), getHeight(), backGround);
		//設(shè)置畫筆顏色
		Paint cPaint = new Paint();

		
		//顯示字符
		//realCol為所顯示的字符在原始矩陣中的列數(shù)
		int realCol = 0;
		//row為行數(shù)，col為列數(shù)
		for( int row = 0; row < 5; row ++ ){
			if( row == m_nCurLine )		//當(dāng)前行的字符用黃色顯示
				cPaint.setColor(Color.YELLOW);
			else
				cPaint.setColor(Color.WHITE); //非當(dāng)前行的字符用白色顯示
			for( int col = 0; col < 5; col ++ ){
				//利用偏位數(shù)得到與當(dāng)前位置對應(yīng)的原始矩陣中的位置
				realCol = m_anDis[row] + col; 
				if( realCol > 4 )
					realCol = realCol - 5;
				canvas.drawText(""+m_achWords[row][realCol], 30 + col * 15, 30+row * 15, cPaint);
			}
		}
		cPaint.setColor(Color.WHITE);
		if( m_bGameOK )
			canvas.drawText("真棒,完全正確", 50, 120, cPaint);
		else
			canvas.drawText("左右移動字符,使縱向拼寫正確", 40, 120, cPaint);
	}
	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
			int height) {
		// TODO Auto-generated method stub
		
	}
	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		// TODO Auto-generated method stub
		start();
		
	}
	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		// TODO Auto-generated method stub
		stop();
		
	}
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		// TODO Auto-generated method stub
		if( m_bGameOK )
			return true;		//得到當(dāng)前按鍵狀態(tài)
		//如果按下方向鍵的上鍵，則調(diào)整當(dāng)前行的位置
		if( keyCode == KeyEvent.KEYCODE_DPAD_UP )
			m_nCurLine --; 
		//如果按下方向鍵的下鍵，則調(diào)整當(dāng)前行的位置
		if(keyCode == KeyEvent.KEYCODE_DPAD_DOWN)
			m_nCurLine ++;
		//調(diào)整當(dāng)前行的值,使它在0到4之間
		if( m_nCurLine < 0 )
			m_nCurLine += 5;
		if( m_nCurLine > 4) 
			m_nCurLine -= 5;
		//如果按下方向鍵的左鍵,則當(dāng)前行的字符左移
		if( keyCode == KeyEvent.KEYCODE_DPAD_LEFT)
			m_anDis[m_nCurLine] ++;
		//如果按下方向鍵的右鍵,則當(dāng)前行的字符右移
        if( keyCode == KeyEvent.KEYCODE_DPAD_RIGHT)
        	m_anDis[m_nCurLine] --;
        
        if( m_anDis[m_nCurLine] < 0 )
        	m_anDis[m_nCurLine] += 5;
        if( m_anDis[m_nCurLine] > 4 )
        	m_anDis[m_nCurLine] -= 5;
        
		return super.onKeyDown(keyCode, event);
	}
}

  

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?apk文件（將后綴改為apk): Demon_4.zip

源代碼文件： Demon_4.rar

實例4---拼單詞游戲