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一、示意图：

1）开始画面：

2）游戏中画面： 3）结束画面：

二、分析：

1、游戏中的每个元素都可封装成对象，

1）开始按钮与结束按钮可封装成GameButton对象： 属性有：有坐标x,y；有原图与按下后的图片；另外还有判断是否点击了的属性 方法有：draw方法，用来绘制自己； isClick判断是否被点击了 另外提供点击的监听事件OnButtonClickListener 2）Bird对象： 属性有图片，坐标，位置，大小等 方法有draw方法，resetHeigt方法（用于在游戏结束后恢复其高度） 3）Floor地板对象： 属性有：坐标，BitmapShader填充物 方法有：draw方法，游戏运行时不断绘制，看起来想不断的移动 4）Grade分数对象 属性有：分数图片，宽高，单个分数的矩阵 方法有：draw方法，绘制分数从左到右绘制，每绘制一个分数，移动到下个分数，宽度是单个分数的宽度 5）管道对象 属性有：上管道高度，上管道与下管道之间的距离，图片 方法有：draw方法，根据随机数绘制管道；touchBird方法，判断小鸟是否触碰到了管道

2、游戏绘制在SurfaceView界面上

1）创建类FlyBirdView并继承SurfaceView 实现接口Callback, Runnable 2）在子线程里绘制绘制上面的对象 3）在onSizeChanged方法里初始化所有的对象，因为在这个方法里控件的宽高固定了下来 4）在构造函数里初始化图片等基本属性 3、除了绘制之外，游戏是有状态的，一般来说，游戏有三种状态：等待状态、运行状态和结束状态 在这里我们使用emum来设值，并且进入游戏时默认是等待状态 1）在等待状态里最主要绘制开始按钮 3）运行状态主要是对管道、地板等对象的不断绘制 3）结束状态绘制gameovew和重新开始的按钮

三、实体类代码：

1）Bird类：

/** * 鸟的实体类 *  * @Project App_View * @Package com.android.view.flybird * @author chenlin * @version 1.0 * @Date 2014年5月6日 */public class Bird {
       public static final float RADIO_POS_HEIGHT = 1 / 3f;// 鸟所在的默认屏幕高度    private static final int BIRD_SIZE = 30; // 鸟的宽度 30dp    private Bitmap mBirdBitmap;// 鸟图片    private int mHeight;// 鸟高度    private int mWidth;// 鸟宽度    private RectF mBirdRectF; // 鸟所在的范围    private int x, y;// 所在坐标    private int mGameHeight;    public Bird(Context context, Bitmap bitmap, int gameWidth, int gameHeight) {        this.mBirdBitmap = bitmap;        this.mWidth = UITools.dip2px(context, BIRD_SIZE);        this.mHeight = (int) (mWidth * 1.0f / bitmap.getWidth() * bitmap.getHeight());        // 给坐标赋值        this.x = gameWidth / 2 - bitmap.getWidth() / 2;        this.y = (int) (gameHeight * RADIO_POS_HEIGHT);        this.mBirdRectF = new RectF();        this.mGameHeight = gameHeight;    }    /**     * 绘制鸟     *      * @param canvas     */    public void draw(Canvas canvas) {        mBirdRectF.set(x, y, x + mWidth, y + mHeight);        canvas.drawBitmap(mBirdBitmap, null, mBirdRectF, null);    }    public void resetHeigt() {        y = (int) (mGameHeight * RADIO_POS_HEIGHT);    }    public int getY() {        return y;    }    public void setY(int y) {        this.y = y;    }    public int getX() {        return x;    }    public void setX(int x) {        this.x = x;    }    public int getWidth() {        return mWidth;    }    public int getHeight() {        return mHeight;    }}

2）Floor类

/** * 地板 *  * @Project App_View * @Package com.android.view.flybird * @author chenlin * @version 1.0 * @Date 2014年5月6日 */public class Floor {
       // 地板位置游戏面板高度的4/5到底部    private static final float FLOOR_Y_POS_RADIO = 4 / 5F; // height of 4/5    private int x, y;// 坐标    private BitmapShader mBitmapShader;// 填充物    private int mGameWidth;// 地板宽高    private int mGameHeight;    public Floor(int gameWidth, int gameHeight, Bitmap bgBitmap) {        this.mGameHeight = gameHeight;        this.mGameWidth = gameWidth;        this.y = (int) (mGameHeight * FLOOR_Y_POS_RADIO);        mBitmapShader = new BitmapShader(bgBitmap, TileMode.CLAMP, TileMode.CLAMP);    }    /**     * 绘制自己     *      * @param canvas     */    public void draw(Canvas canvas, Paint paint) {        // 进行平移，如果移出的部分超过屏幕的宽度，就重新让坐标移动到源位置        if (-x > mGameWidth) {            x = x % mGameWidth;        }        /**         * save() : 用来保存Canvas的状态,save()方法之后的代码，可以调用Canvas的平移、放缩、旋转、裁剪等操作！         */        canvas.save(Canvas.MATRIX_SAVE_FLAG);        //平移到指定位置        canvas.translate(x, y);        paint.setShader(mBitmapShader);        canvas.drawRect(x, 0, -x + mGameWidth, mGameHeight - y, paint);        /**         * restore()：用来恢复Canvas之前保存的状态(可以想成是保存坐标轴的状态),防止save()方法代码之后对Canvas执行的操作，继续对后续的绘制会产生影响，通过该方法可以避免连带的影响         */        canvas.restore();        paint.setShader(null);    }    public int getX() {        return x;    }    public void setX(int x) {        this.x = x;    }    public int getY() {        return y;    }}

3）GameButton类

/** * 开始按钮 * @Project    App_View * @Package    com.android.view.flybird * @author     chenlin * @version    1.0 * @Date       2014年5月19日 */public class GameButton {
       private int x;//所在坐标    private int y;    private Bitmap mBitmap;//原来按钮图片    private Bitmap mPressBitmap;//按下的按钮图片    private RectF mRectF; // 按钮所在的范围    private boolean isClick = false;//判断是否被点击了    public GameButton(Bitmap bitmap, Bitmap pressBitmap, int gameWidth, int gameHeight){        this.mBitmap = bitmap;        this.mPressBitmap = pressBitmap;        this.x = gameWidth/2-mBitmap.getWidth()/2;//左边距        this.y = gameHeight;//初始的位置在屏幕最下端        this.mRectF = new RectF();    }    /**     * 绘制自己     * @param canvas     */    public void draw(Canvas canvas){        canvas.save(Canvas.MATRIX_SAVE_FLAG);        mRectF.set(x, y, x + mBitmap.getWidth(), y + mBitmap.getHeight());        if (isClick) {            canvas.drawBitmap(mBitmap, null , mRectF, null);        }else {            canvas.drawBitmap(mPressBitmap, null , mRectF, null);        }        canvas.restore();    }    /**     * 判断按钮是否可点击     * @return     */    public boolean isClick(int newX, int newY) {        Rect rect = new Rect(x, y, x + mPressBitmap.getWidth(), y + mPressBitmap.getHeight());        isClick = rect.contains(newX, newY);        return isClick;    }    public void setClick(boolean isClick) {        this.isClick = isClick;    }    /**     * 提供向外的点击事件     */    public void click(){        if (mListener != null) {            mListener.click();        }    }    private OnButtonClickListener mListener;    public interface OnButtonClickListener{
           void click();    }    public void setOnButtonClickListener(OnButtonClickListener listener){        this.mListener = listener;    }    public int getX() {        return x;    }    public void setX(int x) {        this.x = x;    }    public int getY() {        return y;    }    public void setY(int y) {        this.y = y;    }}

4）分数Grade类：

/** * 分数 *  * @Project App_View * @Package com.android.view.flybird * @author chenlin * @version 1.0 * @Date 2016年5月16日 */public class Grade {
       private Bitmap[] mNumBitmap;//所有分数的图片集合    private RectF mSingleNumRectF;//单个分数的矩阵    private int mSingleGradeWidth;//单个分数的宽度    private int mGameWidth;    private int mGameHeight;    public Grade(Bitmap[] numBitmap, RectF rectF, int singleGradeWidth, int gameWidth, int gameHeight) {        this.mNumBitmap = numBitmap;        this.mSingleNumRectF = rectF;        this.mSingleGradeWidth = singleGradeWidth;        this.mGameWidth = gameWidth;        this.mGameHeight = gameHeight;    }    /**     * 绘制     *      * @param mCanvas, int gameWidth     */    public void draw(Canvas canvas, int score) {        String grade = score + "";        canvas.save(Canvas.MATRIX_SAVE_FLAG);        //移动屏幕的中间，1/8的高度        canvas.translate(mGameWidth / 2 - grade.length() * mSingleGradeWidth / 2, 1f / 8 * mGameHeight);        // 依次绘制分数        for (int i = 0; i < grade.length(); i++) {            //100,先绘制1，            String numStr = grade.substring(i, i + 1);            int num = Integer.valueOf(numStr);            canvas.drawBitmap(mNumBitmap[num], null, mSingleNumRectF, null);            //移动到下一个分数0            canvas.translate(mSingleGradeWidth, 0);        }        canvas.restore();    }}

5）管道类Pipe：

/** * 管道实体 *  * @Project App_View * @Package com.android.view.flybird * @author chenlin * @version 1.0 * @Date 2014年5月7日 */public class Pipe {
       private static final float RADIO_BETWEEN_UP_DOWN = 1 / 5F;// 上下管道间的距离    private static final float RADIO_MAX_HEIGHT = 2 / 5F;// 上管道的最大高度    private static final float RADIO_MIN_HEIGHT = 1 / 5F;// 上管道的最小高度    private int x;// 管道x坐标    private int mTopHeight;// 上管道高度    private int mMargin;// 上下管道的距离    private Bitmap mTopBitmap;// 上管道图片    private Bitmap mBottomBitmap;// 下管道图片    private static Random random = new Random();    public Pipe(Context context, int gameWidth, int gameHeight, Bitmap topBitmap, Bitmap bottomBitmap) {        mMargin = (int) (gameHeight * RADIO_BETWEEN_UP_DOWN);        // 默认从最左边出现 ,小鸟往前飞时，管道往左移动        x = gameWidth;        mTopBitmap = topBitmap;        mBottomBitmap = bottomBitmap;        // 高度随机        randomHeight(gameHeight);    }    /**     * 随机生成一个高度     */    private void randomHeight(int gameHeight) {        mTopHeight = random.nextInt((int) (gameHeight * (RADIO_MAX_HEIGHT - RADIO_MIN_HEIGHT)));        mTopHeight = (int) (mTopHeight + gameHeight * RADIO_MIN_HEIGHT);    }    public void draw(Canvas canvas, RectF rect) {        canvas.save(Canvas.MATRIX_SAVE_FLAG);        // rect为整个管道，假设完整管道为100，需要绘制20，则向上偏移80 rect.bottom管的实际高度        canvas.translate(x, -(rect.bottom - mTopHeight));        // 绘制上管道        canvas.drawBitmap(mTopBitmap, null, rect, null);        // 下管道，偏移量为，上管道高度+margin        canvas.translate(0, rect.bottom + mMargin);        //canvas.translate(0, mTopHeight + mMargin);        //绘制下管道        canvas.drawBitmap(mBottomBitmap, null, rect, null);        canvas.restore();    }    /**     * 判断和鸟是否触碰     * @param bird     * @return     */    public boolean touchBird(Bird bird){        /**         * 如果bird已经触碰到管道         */        if (bird.getX() + bird.getWidth() > x && (bird.getY() < mTopHeight || bird.getY() + bird.getHeight() > mTopHeight + mMargin)) {            return true;        }        return false;    }    public int getX() {        return x;    }    public void setX(int x) {        this.x = x;    }}

四、具体实现：

1）我们先从简单的开始，实现游戏最基本的配置

public class FlyBirdView extends SurfaceView implements Callback, Runnable {
       private SurfaceHolder mHolder;    // private Thread mThread;    private ExecutorService mPool;    private Canvas mCanvas;    private boolean isRunnging;// 是否运行    // 二.设置背景    private Bitmap mBgBitmap;    //当前View的尺寸    private int mWidth;    private int mHeight;    private RectF mGamePanelRect = new RectF();    // ----构造函数处理---------------------------------------------    public FlyBirdView(Context context, AttributeSet attrs) {        this(context, attrs, 0);    }    public FlyBirdView(Context context) {        this(context, null);    }    public FlyBirdView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);        init();    }    private void init() {        // -初始化holer-----------------------        mHolder = getHolder();        mHolder.addCallback(this);        setZOrderOnTop(true);        // 设置画布 背景透明        mHolder.setFormat(PixelFormat.TRANSLUCENT);        // --焦点设置----------------------------        setFocusable(true);        // 设置触屏        setFocusableInTouchMode(true);        // 设置常亮        setKeepScreenOn(true);        // --背景设置--------------------------------        mGamePanelRect = new RectF();        mBgBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.bgbird);    }    @Override    protected void onSizeChanged(int w, int h, int oldw, int oldh) {        mWidth = w;        mHeight = h;        mGamePanelRect.set(0, 0, w, h);        super.onSizeChanged(w, h, oldw, oldh);    }    @Override    public void run() {        while (isRunnging) {            long start = System.currentTimeMillis();            draw();            long end = System.currentTimeMillis();            if (start - end < 50) {                SystemClock.sleep(50 - (start - end));            }        }    }    private void draw() {        try {            if (mHolder != null) {                mCanvas = mHolder.lockCanvas();                if (mCanvas != null) {                    //绘制背景                    drawBg();                  }            }        } catch (Exception e) {            e.printStackTrace();        } finally {            if (mHolder != null && mCanvas != null) {                mHolder.unlockCanvasAndPost(mCanvas);            }        }    }    private void drawBg() {        mCanvas.drawBitmap(mBgBitmap,null, mGamePanelRect, null);    }    // ---callback监听------------------------------------------------------    @Override    public void surfaceCreated(SurfaceHolder holder) {        // -线程处理--------------------------        isRunnging = true;        mPool = Executors.newFixedThreadPool(5);        // mThread = new Thread(this);        // mThread.start();        mPool.execute(this);    }    @Override    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {    }    @Override    public void surfaceDestroyed(SurfaceHolder holder) {        // 通知关闭线程        isRunnging = false;    }}

2）在画布上添加对象

/** * 游戏主界面的绘制 *  * @Project App_View * @Package com.android.view.flybird * @author chenlin * @version 1.0 * @Date 2014年5月7日 */public class FlyBirdView1 extends SurfaceView implements Callback, Runnable {
       private SurfaceHolder mHolder;    // private Thread mThread;    private ExecutorService mPool;    private Canvas mCanvas;    private boolean isRunnging;// 是否运行    // 二.设置背景    private Bitmap mBgBitmap;    // 当前View的尺寸    private int mWidth;    private int mHeight;    private RectF mGamePanelRect = new RectF();    // 三、设置鸟    private Bird mBird;    private Bitmap mBirdBitmap;    // 四、添加地板    private Floor mFloor;    private Bitmap mFloorBitmap;    // 五、添加管道    /** 管道的宽度 60dp */    private static final int PIPE_WIDTH = 60;    private Pipe mPipe;    /** 上管道的图片 */    private Bitmap mPipeTopBitmap;    /** 下管道的图片 */    private Bitmap mPipeBotBitmap;    /** 管道的宽度 */    private int mPipeWidth;    /** 管道矩阵 */    private RectF mPipeRectF;    /** 管道集合 */    private List
   
     mPipeList;    // 六、添加分数    /** 分数 */    private final int[] mNums = new int[] { R.drawable.n0, R.drawable.n1, R.drawable.n2, R.drawable.n3, R.drawable.n4, R.drawable.n5,            R.drawable.n6, R.drawable.n7, R.drawable.n8, R.drawable.n9 };    private Grade mGrade;    /** 分数图片组 */    private Bitmap[] mNumBitmap;    /** 分值 */    private int mScore = 100;    /** 单个数字的高度的1/15 */    private static final float RADIO_SINGLE_NUM_HEIGHT = 1 / 15f;    /** 单个数字的宽度 */    private int mSingleGradeWidth;    /** 单个数字的高度 */    private int mSingleGradeHeight;    /** 单个数字的范围 */    private RectF mSingleNumRectF;    // ----构造函数处理---------------------------------------------    public FlyBirdView1(Context context, AttributeSet attrs) {        super(context, attrs);        init();    }    public FlyBirdView1(Context context) {        super(context);        init();    }    public FlyBirdView1(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);        init();    }    private void init() {        // -初始化holer-----------------------        mHolder = getHolder();        mHolder.addCallback(this);        setZOrderOnTop(true);        // 设置画布 背景透明        mHolder.setFormat(PixelFormat.TRANSLUCENT);        // --焦点设置----------------------------        setFocusable(true);        // 设置触屏        setFocusableInTouchMode(true);        // 设置常亮        setKeepScreenOn(true);        // --背景设置--------------------------------        mGamePanelRect = new RectF();        mBgBitmap = loadImageByResId(R.drawable.bg1);        // --添加鸟的图片---        mBirdBitmap = loadImageByResId(R.drawable.b1);        // --添加地板---        mFloorBitmap = loadImageByResId(R.drawable.floor_bg2);        // --管道的宽度初始化--        mPipeWidth = UITools.dip2px(getContext(), PIPE_WIDTH);        // --添加管道图片--        mPipeTopBitmap = loadImageByResId(R.drawable.g2);        mPipeBotBitmap = loadImageByResId(R.drawable.g1);        mPipeList = new ArrayList
    
     ();        // -------------------------------------------------------        // 初始化分数图片        mNumBitmap = new Bitmap[mNums.length];        for (int i = 0; i < mNums.length; i++) {            mNumBitmap[i] = loadImageByResId(mNums[i]);        }    }    @Override    protected void onSizeChanged(int w, int h, int oldw, int oldh) {        super.onSizeChanged(w, h, oldw, oldh);        mWidth = w;        mHeight = h;        mGamePanelRect.set(0, 0, w, h);        // 初始化鸟        mBird = new Bird(getContext(), mBirdBitmap, mWidth, mHeight);        // 初始化地板        mFloor = new Floor(mWidth, mHeight, mFloorBitmap);        // 初始化管道范围        mPipeRectF = new RectF(0, 0, mPipeWidth, mHeight);        // 初始化 管道        mPipe = new Pipe(getContext(), mWidth, mHeight, mPipeTopBitmap, mPipeBotBitmap);        mPipeList.add(mPipe);        // 初始化分数        mSingleGradeHeight = (int) (h * RADIO_SINGLE_NUM_HEIGHT);// 屏幕的1/15        mSingleGradeWidth = (int) (mNumBitmap[0].getWidth() * (1.0f * mSingleGradeHeight / mNumBitmap[0].getHeight()));        mSingleNumRectF = new RectF(0, 0, mSingleGradeWidth, mSingleGradeHeight);        mGrade = new Grade(mNumBitmap, mSingleNumRectF, mSingleGradeWidth, mWidth, mHeight);    }    @Override    public void run() {        while (isRunnging) {            long start = System.currentTimeMillis();            draw();            long end = System.currentTimeMillis();            if (end - start < 50) {                SystemClock.sleep(50 - (end - start));            }        }    }    private void draw() {        try {            Logger.i("bird", "mHolder==" + mHolder);            if (mHolder != null) {                mCanvas = mHolder.lockCanvas();                Logger.i("bird", "mCanvas==" + mCanvas);                if (mCanvas != null) {                    drawBg(); // 绘制背景                    drawBird();// 绘制鸟                    drawFloor();// 绘制地板                    drawPipes();// 绘制管道                    drawGrades();// 绘制分数                }            }        } catch (Exception e) {            e.printStackTrace();        } finally {            if (mHolder != null && mCanvas != null) {                mHolder.unlockCanvasAndPost(mCanvas);            }        }    }    /**     * 绘制分数     */    private void drawGrades() {        mGrade.draw(mCanvas, mScore);    }    private int mSpeed = UITools.dip2px(getContext(), 2);    private void drawFloor() {        Paint paint = new Paint();        paint.setAntiAlias(true);        paint.setDither(true);        mFloor.draw(mCanvas, paint);        // 更新我们地板绘制的x坐标        mFloor.setX(mFloor.getX() - mSpeed);    }    private void drawBird() {        mBird.draw(mCanvas);    }    private void drawBg() {        mCanvas.drawBitmap(mBgBitmap, null, mGamePanelRect, null);    }    private void drawPipes() {        for (Pipe pipe : mPipeList) {            // 先设定x坐标            pipe.setX(pipe.getX() - mSpeed);            pipe.draw(mCanvas, mPipeRectF);        }    }    // ---callback监听------------------------------------------------------    @Override    public void surfaceCreated(SurfaceHolder holder) {        // -线程处理--------------------------        isRunnging = true;        mPool = Executors.newFixedThreadPool(5);        mPool.execute(this);    }    @Override    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {    }    @Override    public void surfaceDestroyed(SurfaceHolder holder) {        // 通知关闭线程        isRunnging = false;    }    /**     * 根据resId加载图片     *      * @param resId     * @return     */    private Bitmap loadImageByResId(int resId) {        return BitmapFactory.decodeResource(getResources(), resId);    }}
    
   

3）在画布上增加状态信息和开始与结束界面，游戏主界面就完成了

/** * 游戏主界面 *  * @Project App_View * @Package com.android.view.flybird * @author chenlin * @version 1.0 * @Date 2014年5月7日 */public class FlyBirdView extends SurfaceView implements Callback, Runnable {
       //private static final String TAG = "bird";    private SurfaceHolder mHolder;    private ExecutorService mPool;    private Canvas mCanvas;    private boolean isRunnging;// 是否运行    // 二.设置背景    private Bitmap mBgBitmap;    // 当前View的尺寸    private int mWidth;    private int mHeight;    private RectF mGamePanelRect = new RectF();    // 三、设置鸟    private Bird mBird;    private Bitmap mBirdBitmap;    // 四、添加地板    private Floor mFloor;    private Bitmap mFloorBitmap;    // 五、添加管道    /** 管道的宽度 60dp */    private static final int PIPE_WIDTH = 60;    private Pipe mPipe;    /** 上管道的图片 */    private Bitmap mPipeTopBitmap;    /** 下管道的图片 */    private Bitmap mPipeBotBitmap;    /** 管道的宽度 */    private int mPipeWidth;    /** 管道矩阵 */    private RectF mPipeRectF;    /** 管道集合 */    private List
   
     mPipeList;    /** 管道移动的速度 */    private int mSpeed = UITools.dip2px(getContext(), 5);    // 六、添加分数    /** 分数 */    private final int[] mNums = new int[] { R.drawable.n0, R.drawable.n1, R.drawable.n2, R.drawable.n3, R.drawable.n4, R.drawable.n5,            R.drawable.n6, R.drawable.n7, R.drawable.n8, R.drawable.n9 };    private Grade mGrade;    /** 分数图片组 */    private Bitmap[] mNumBitmap;    /** 分值 */    private int mScore = 0;    /** 单个数字的高度的1/15 */    private static final float RADIO_SINGLE_NUM_HEIGHT = 1 / 15f;    /** 单个数字的宽度 */    private int mSingleGradeWidth;    /** 单个数字的高度 */    private int mSingleGradeHeight;    /** 单个数字的范围 */    private RectF mSingleNumRectF;    // --七、添加游戏的状态-------------------------------------------------------------------------    /** 刚进入游戏时是等待静止的状态 */    private GameStatus mStatus = GameStatus.WAITING;    private enum GameStatus {        WAITING, RUNNING, OVER    }    /** 触摸上升的距离，因为是上升，所以为负值 */    private static final int TOUCH_UP_SIZE = -16;    /** 将上升的距离转化为px；这里多存储一个变量，变量在run中计算 */    private final int mBirdUpDis = UITools.dip2px(getContext(), TOUCH_UP_SIZE);    /** 跳跃的时候的临时距离 */    private int mTmpBirdDis;    // --八、按钮----------------------------------------    private GameButton mStart;    private Bitmap mStartBitmap;    private Bitmap mStartPressBitmap;// 开始按下图片    private GameButton mRestart;    private Bitmap mRestartBitmap;    private Bitmap mRestartPressBitmap;// 从新开始按下图片    // --九、游戏中的变量---------------------------    /** 两个管道间距离 **/    private final int PIPE_DIS_BETWEEN_TWO = UITools.dip2px(getContext(), 300);    /** 鸟自动下落的距离 */    private final int mAutoDownSpeed = UITools.dip2px(getContext(), 2);    //private Handler mHandler = new Handler();    // ----构造函数处理---------------------------------------------    public FlyBirdView(Context context, AttributeSet attrs) {        super(context, attrs);        init();    }    public FlyBirdView(Context context) {        super(context);        init();    }    public FlyBirdView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);        init();    }    // ---初始化开始 ----------------------------------------------------------    private void init() {        // -初始化holer-----------------------        mHolder = getHolder();        mHolder.addCallback(this);        setZOrderOnTop(true);        // 设置画布 背景透明        mHolder.setFormat(PixelFormat.TRANSLUCENT);        // --焦点设置----------------------------        setFocusable(true);        // 设置触屏        setFocusableInTouchMode(true);        // 设置常亮        setKeepScreenOn(true);        // --背景设置--------------------------------        mGamePanelRect = new RectF();        mBgBitmap = loadImageByResId(R.drawable.bg1);        // --添加鸟的图片---        mBirdBitmap = loadImageByResId(R.drawable.b1);        // --添加地板---        mFloorBitmap = loadImageByResId(R.drawable.floor_bg2);        // --管道的宽度初始化--        mPipeWidth = UITools.dip2px(getContext(), PIPE_WIDTH);        // --添加管道图片--        mPipeTopBitmap = loadImageByResId(R.drawable.g2);        mPipeBotBitmap = loadImageByResId(R.drawable.g1);        mPipeList = new ArrayList
    
     ();        // -------------------------------------------------------        // 初始化分数图片        mNumBitmap = new Bitmap[mNums.length];        for (int i = 0; i < mNums.length; i++) {            mNumBitmap[i] = loadImageByResId(mNums[i]);        }        // ---初始化按钮图片-------------------------------------        mStartBitmap = BitmapUtil.getImageFromAssetsFile(getContext(), "start.png");        mStartPressBitmap = BitmapUtil.getImageFromAssetsFile(getContext(), "start2.png");        mRestartBitmap = BitmapUtil.getImageFromAssetsFile(getContext(), "restart1.png");        mRestartPressBitmap = BitmapUtil.getImageFromAssetsFile(getContext(), "restart2.png");    }    @Override    protected void onSizeChanged(int w, int h, int oldw, int oldh) {        super.onSizeChanged(w, h, oldw, oldh);        mWidth = w;        mHeight = h;        mGamePanelRect.set(0, 0, w, h);        // 初始化鸟        mBird = new Bird(getContext(), mBirdBitmap, mWidth, mHeight);        // 初始化地板        mFloor = new Floor(mWidth, mHeight, mFloorBitmap);        // 初始化管道范围        mPipeRectF = new RectF(0, 0, mPipeWidth, mHeight);        // 初始化 管道        mPipe = new Pipe(getContext(), mWidth, mHeight, mPipeTopBitmap, mPipeBotBitmap);        mPipeList.add(mPipe);        // 初始化分数        mSingleGradeHeight = (int) (h * RADIO_SINGLE_NUM_HEIGHT);// 屏幕的1/15        mSingleGradeWidth = (int) (mNumBitmap[0].getWidth() * (1.0f * mSingleGradeHeight / mNumBitmap[0].getHeight()));        mSingleNumRectF = new RectF(0, 0, mSingleGradeWidth, mSingleGradeHeight);        mGrade = new Grade(mNumBitmap, mSingleNumRectF, mSingleGradeWidth, mWidth, mHeight);        // 初始化按钮        mStart = new GameButton(mStartBitmap, mStartPressBitmap, mWidth, mHeight);        // 从新开始按钮        mRestart = new GameButton(mRestartBitmap, mRestartPressBitmap, mWidth, mHeight);        if (mStatus == GameStatus.WAITING && mStart != null) {            ObjectAnimator anim = ObjectAnimator.ofInt(mStart, "Y", mHeight, mHeight / 2);            anim.setDuration(2000);            anim.start();        }        // 添加事件        mStart.setOnButtonClickListener(new OnButtonClickListener() {            @Override            public void click() {                if (mStatus == GameStatus.WAITING) {                    // 按下的时候，游戏进入运行状态                    mStatus = GameStatus.RUNNING;                }            }        });        mRestart.setOnButtonClickListener(new OnButtonClickListener() {            @Override            public void click() {                mStatus = GameStatus.WAITING;                resetBirdStatus();            }        });    }    // ---初始化结束 ----------------------------------------------------------    // --处理触碰事件------------------------------------------------------------------------    private int mDownX = 0;    private int mDownY = 0;    @Override    public boolean onTouchEvent(MotionEvent event) {        switch (event.getAction()) {        case MotionEvent.ACTION_DOWN:// 按下            mDownX = (int) event.getX();            mDownY = (int) event.getY();            if (mStatus == GameStatus.WAITING) {                if (mStart.isClick(mDownX, mDownY)) {                    mStart.click();                }            } else if (mStatus == GameStatus.RUNNING) {                // 记录临时跳跃的高度                mTmpBirdDis = mBirdUpDis;                // --增加难度---                if (mScore > 20) {                    mSpeed += UITools.dip2px(getContext(), 1);                } else if (mScore > 40) {                    mSpeed += UITools.dip2px(getContext(), 2);                } else if (mScore > 60) {                    mSpeed += UITools.dip2px(getContext(), 3);                } else if (mScore > 80) {                    mSpeed += UITools.dip2px(getContext(), 4);                }            } else if (mStatus == GameStatus.OVER) {
  // 游戏结束时                // 判断是否点击了重新开始图片                if (mRestart.isClick(mDownX, mDownY)) {                    mRestart.click();                }            }            break;        case MotionEvent.ACTION_MOVE:// 移动            int moveX = (int) event.getX();            int moveY = (int) event.getY();            AnimatorSet set = new AnimatorSet();            ObjectAnimator animatorX = ObjectAnimator.ofInt(mBird, "X", mDownX, moveX);            ObjectAnimator animatorY = ObjectAnimator.ofInt(mBird, "Y", mDownY, moveY);            set.playTogether(animatorX, animatorY);            set.setDuration(2000);            set.start();            mDownX = (int) event.getX();            mDownY = (int) event.getY();            break;        case MotionEvent.ACTION_CANCEL:        case MotionEvent.ACTION_UP: // 抬起            if (mStart != null) {                mStart.setClick(false);            }            if (mRestart != null) {                mRestart.setClick(false);            }            break;        }        return true;    }    private void resetBirdStatus() {        // 设置鸟的高度        mBird.setY((int) (mHeight * Bird.RADIO_POS_HEIGHT));        // 重置下落速度        mTmpBirdDis = 0;    }    // --处理逻辑事物------------------------------------------------------------------------    /** 记录要移除的管道 为什么不用CopyOnWriteArrayList，因为其是线程安全的 */    private List
     
       mNeedRemovePipe = new ArrayList
      
       ();    /** 记录要移动的距离 */    private int mTmpMoveDistance = 0;    /** 记录要移除的管的个数 */    private int mRemovedPipe = 0;    /**     * 处理逻辑事物     */    private void logic() {        switch (mStatus) {        case WAITING:// 刚进入游戏的状态            break;        case RUNNING:// 正在玩的状态]            mScore = 0;            // ---.移动地板-----------            mFloor.setX(mFloor.getX() - mSpeed);            // ---不断移动管道--------            logicPipe();            // ----处理鸟逻辑----            mTmpBirdDis += mAutoDownSpeed;            mBird.setY(mBird.getY() + mTmpBirdDis);            // ---处理分数---            mScore += mRemovedPipe;            for (Pipe pipe : mPipeList) {                if (pipe.getX() + mPipeWidth < mBird.getX()) {                    mScore++;                }            }            // ----判断游戏是否结束----            checkGameOver();            break;        case OVER:// 鸟落下            // 如果鸟还在空中，先让它掉下来            if (mBird.getY() < mFloor.getY() - mBird.getHeight()) {                mTmpBirdDis += mAutoDownSpeed;                mBird.setY(mBird.getY() + mTmpBirdDis);            } else {                // 清除生成的管道                clearAndInit();            }            break;        }    }    /**     * 重置鸟的位置等数据     */    private void clearAndInit() {        // 清除生成的管道        mPipeList.clear();        // 需要移除的管道集合        mNeedRemovePipe.clear();        // 清除移动的距离        mTmpMoveDistance = 0;        // 管道的个数        mRemovedPipe = 0;    }    /**     * 处理管道逻辑     */    private void logicPipe() {        // 1.遍历所有的管道        for (Pipe pipe : mPipeList) {            // 2.如果管子已经在屏幕外            if (pipe.getX() < -mPipeWidth) {                mNeedRemovePipe.add(pipe);                mRemovedPipe++;                continue;            }            pipe.setX(pipe.getX() - mSpeed);        }        // 3.移除管道        mPipeList.removeAll(mNeedRemovePipe);        // 4.记录移动距离        mTmpMoveDistance += mSpeed;        // 5.生成一个管道        if (mTmpMoveDistance >= PIPE_DIS_BETWEEN_TWO) {            Pipe pipe = new Pipe(getContext(), getWidth(), getHeight(), mPipeTopBitmap, mPipeBotBitmap);            mPipeList.add(pipe);            mTmpMoveDistance = 0;        }    }    /**     * 判断游戏是否结束     */    private void checkGameOver() {        // 判断小鸟是否触碰到了地板        if (mBird.getY() > mFloor.getY() - mBird.getHeight()) {            mStatus = GameStatus.OVER;        }        // 判断是否触碰到了管道        for (Pipe pipe : mPipeList) {            // 已经穿过的            if (pipe.getX() + mPipeWidth < mBird.getX()) {                continue;            }            // 如果是碰到了，游戏结束            if (pipe.touchBird(mBird)) {                mStatus = GameStatus.OVER;                break;            }        }    }    // ---游戏引擎------------------------------------------------------------    @Override    public void run() {        while (isRunnging) {            long start = System.currentTimeMillis();            logic();            draw();            long end = System.currentTimeMillis();            if (end - start < 50) {                SystemClock.sleep(50 - (end - start));            }        }    }    // ----绘制开始-------------------------------------------------------------------    private void draw() {        try {            if (mHolder != null) {                mCanvas = mHolder.lockCanvas();                if (mCanvas != null) {                    drawBg(); // 绘制背景                    drawBird();// 绘制鸟                    drawFloor();// 绘制地板                    drawGrades();// 绘制分数                    if (mStatus == GameStatus.WAITING) {                        drawStart();                    }                    if (mStatus == GameStatus.RUNNING) {                        drawPipes();// 绘制管道                    }                    if (mStatus == GameStatus.OVER) {                        drawGameOver();                        drawRestart();                    }                }            }        } catch (Exception e) {            e.printStackTrace();        } finally {            if (mHolder != null && mCanvas != null) {                mHolder.unlockCanvasAndPost(mCanvas);            }        }    }    private FontMetrics fm;    private int mTextHeight = 0;// 游戏结束时文本的高度    private void drawGameOver() {        String mGameOver = "GAME OVER";        Typeface typeface = Typeface.createFromAsset(getContext().getAssets(), "BRITANIC.TTF");        Paint paint = new Paint();        paint.setAntiAlias(true); // 是否抗锯齿        paint.setTypeface(typeface);        paint.setStrokeWidth(3);        paint.setColor(Color.RED);        paint.setTextSize(50);        // paint.setShader(shader);//设置字体        paint.setShadowLayer(5, 3, 3, 0xFFFF00FF);// 设置阴影        paint.setTextAlign(Paint.Align.CENTER);        // paint.setStyle(Paint.Style.STROKE); //空心        paint.setStyle(Paint.Style.FILL); // 实心        paint.setDither(true);        fm = paint.getFontMetrics();        mTextHeight = (int) (Math.ceil(fm.descent - fm.ascent) + UITools.dip2px(getContext(), 4));        mCanvas.drawText(mGameOver, mWidth / 2, mHeight / 2, paint);    }    /**     * 绘制开始按钮     */    private void drawStart() {        mStart.draw(mCanvas);    }    /**     * 绘制重新开始按钮     */    private void drawRestart() {        mRestart.setY(mHeight/2 + mTextHeight);        mRestart.draw(mCanvas);//      Logger.i(TAG, "aaaa");//      mHandler.postDelayed(new Runnable() {
   //          @Override//          public void run() {
   //              if (mRestart != null) {
   //                  Logger.i(TAG, "kkkk");//                  ObjectAnimator anim = ObjectAnimator.ofInt(mRestart, "Y", mHeight, mHeight / 2 + mTextHeight);//                  anim.setDuration(2000);//                  anim.start();//              }//          }//      }, 0);    }    /**     * 绘制分数     */    private void drawGrades() {        mGrade.draw(mCanvas, mScore);    }    private void drawFloor() {        Paint paint = new Paint();        paint.setAntiAlias(true);        paint.setDither(true);        mFloor.draw(mCanvas, paint);        // 更新我们地板绘制的x坐标        mFloor.setX(mFloor.getX() - mSpeed);    }    private void drawBird() {        mBird.draw(mCanvas);    }    private void drawBg() {        mCanvas.drawBitmap(mBgBitmap, null, mGamePanelRect, null);    }    private void drawPipes() {        for (Pipe pipe : mPipeList) {            // 先设定x坐标            pipe.setX(pipe.getX() - mSpeed);            pipe.draw(mCanvas, mPipeRectF);        }    }    // ----绘制结束-------------------------------------------------------------------    // ---callback监听------------------------------------------------------    @Override    public void surfaceCreated(SurfaceHolder holder) {        // -线程处理--------------------------        isRunnging = true;        mPool = Executors.newFixedThreadPool(5);        mPool.execute(this);    }    @Override    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {    }    @Override    public void surfaceDestroyed(SurfaceHolder holder) {        // 通知关闭线程        isRunnging = false;    }    /**     * 根据resId加载图片     *      * @param resId     * @return     */    private Bitmap loadImageByResId(int resId) {        return BitmapFactory.decodeResource(getResources(), resId);    }}
      
     
    
   

五、做完后我们的运行，要通过activity来实现

public class FlyBirdActivity extends Activity{
       FlyBirdView mBirdView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);        requestWindowFeature(Window.FEATURE_NO_TITLE);        mBirdView = new FlyBirdView(this);        setContentView(mBirdView);    }}

六、代码下载

链接： 密码：ol82

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