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private float mHeight,mWidth;

private static final String TAG = "ClockView";
Paint helperPaint;

Paint mPaint;
static ValueAnimator valueAnimator;
private float mHourR,minuteR,secondR;
private float mHourDeg,minuteDeg,secondDeg;

private int  hour,minute,second;
private float hd,md,sd;


Runnable drawTarget;

private static final String[] NUMBER_TEXT_LIST = {"日","一", "二", "三", "四", "五", "六", "七", "八", "九","十"};


@Override
public Engine onCreateEngine() {
    return new MyEngine();
}

class MyEngine extends Engine{

    private Timer mTimer = null;
    private  Handler handler = new Handler();

    @Override
    public SurfaceHolder getSurfaceHolder() {
        return super.getSurfaceHolder();
    }

    @Override
    public void onCreate(SurfaceHolder surfaceHolder) {

        super.onCreate(surfaceHolder);
        WindowManager wm = (WindowManager)getSystemService(WINDOW_SERVICE);
        Display display = wm.getDefaultDisplay();
        DisplayMetrics displayMetrics = new DisplayMetrics();
        display.getMetrics(displayMetrics);
        mWidth = displayMetrics.widthPixels;
        mHeight = displayMetrics.heightPixels;
        mHourR = mWidth * 0.143f;
        minuteR = mWidth *0.35f;
        secondR = mWidth * 0.35f;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
    }

    @Override
    public void onVisibilityChanged(boolean visible) {
        super.onVisibilityChanged(visible);
        if (visible) {
            startClock();
        } else {
            stopClock();
        }


    }

    @Override
    public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) {
        super.onSurfaceChanged(holder, format, width, height);



    }

    @Override
    public void onSurfaceCreated(SurfaceHolder holder) {
        super.onSurfaceCreated(holder);


    }

    @Override
    public void onSurfaceDestroyed(SurfaceHolder holder) {
        super.onSurfaceDestroyed(holder);


    }

    private void startClock() {
        mTimer = new Timer(false);
        mTimer.schedule(new TimerTask() {
            @Override
            public void run() {

                Calendar calendar = Calendar.getInstance();
                hour = calendar.get(Calendar.HOUR);
                minute = calendar.get(Calendar.MINUTE);
                second = calendar.get(Calendar.SECOND);
                mHourDeg = -360/12f*(hour - 1);
                minuteDeg = -360/60f * (minute - 1);
                secondDeg = -360/60f * (second - 1);


                Canvas canvas = getSurfaceHolder().lockCanvas();

                canvas.drawColor(Color.BLACK);
                canvas.save();
                //将画布移到中心
                canvas.translate(mWidth/2,mHeight/2);
                initPaint();
                mPaint.setTextSize(mHourR*0.16f);
                drawLiner(canvas);
                drawHour(canvas,mHourDeg);
                drawMinute(canvas,minuteDeg);
                drawSecond(canvas,secondDeg);

                canvas.drawText("现在是"+second,0,100,mPaint);

                getSurfaceHolder().unlockCanvasAndPost(canvas);

            }
        },0,10);

    }

    private void stopClock() {

        mTimer.cancel();
        mTimer = null;


    }

    /**
     * 初始化画笔
     *
     */
    private void initPaint() {
        //参考线
        helperPaint = new Paint();
        helperPaint.setColor(Color.RED);
        helperPaint.setStyle(Paint.Style.STROKE);

        //文字
        mPaint = new Paint();
        mPaint.setColor(Color.WHITE);
        //是否抗锯齿
        mPaint.setAntiAlias(true);
        mPaint.setStyle(Paint.Style.FILL);
    }

    /**
     * 绘制小时
     * @param canvas
     * @param degrees
     */
    private void drawHour(Canvas canvas,float degrees) {

        mPaint.setTextSize(mHourR*0.16f);

        //处理旋转
        canvas.save();
        Log.d(TAG, "drawHour: degrees="+degrees);
        canvas.rotate(degrees);

        for (int i=0;i<12;i++) {
            canvas.save();
            int iDeg = 360/12*i;
            canvas.rotate(iDeg);
            if (iDeg+degrees == 0f) {
                mPaint.setAlpha(255);
            }else{
                mPaint.setAlpha(153);
            }
            mPaint.setTextAlign(Paint.Align.LEFT);

            float y =mPaint.getFontSpacing()/2-mPaint.getFontMetrics().bottom;
            canvas.drawText(getCnStr(i+1)+"点",mHourR,y,mPaint);
            canvas.restore();
        }
        canvas.restore();

    }


    /**
     * 绘制分
     * @param canvas
     * @param degrees
     */
    private void drawMinute(Canvas canvas,Float degrees) {

        mPaint.setTextSize(mHourR*0.16f);

        //处理整体旋转
        canvas.save();
        canvas.rotate(degrees);

        for (int i=0;i<60;i++) {

            canvas.save();
            float iDeg = 360 /60f*i;
            canvas.rotate(iDeg);
            if (iDeg+degrees == 0f) {
                mPaint.setAlpha(255);
            }else{
                mPaint.setAlpha(153);
            }
            mPaint.setTextAlign(Paint.Align.RIGHT);
            float y =mPaint.getFontSpacing()/2-mPaint.getFontMetrics().bottom;
            if (i<59) {
                canvas.drawText(getCnStr(i+1)+"分",minuteR,y,mPaint);
            }
            canvas.restore();
        }
        canvas.restore();

    }


    /**
     * 绘制秒
     * @param canvas
     * @param degrees
     */
    private void drawSecond(Canvas canvas,Float degrees) {

        mPaint.setTextSize(mHourR * 0.16f);
        //处理整体旋转
        canvas.save();
        canvas.rotate(degrees);
        for (int i = 0;i<60;i++) {
            canvas.save();
            float iDeg = 360 /60f*i;
            canvas.rotate(iDeg);
            if (iDeg+degrees == 0f) {
                mPaint.setAlpha(255);
            }else{
                mPaint.setAlpha(153);
            }
            mPaint.setTextAlign(Paint.Align.LEFT);

            float y =mPaint.getFontSpacing()/2-mPaint.getFontMetrics().bottom;
            if (i<59) {
                canvas.drawText(getCnStr(i+1)+"秒",secondR,y,mPaint);
            }
            canvas.restore();
        }
        canvas.restore();
    }

    /**
     * 绘制圆内信息
     * @param canvas
     */
    private void drawLiner(Canvas canvas) {

        Calendar calendar = Calendar.getInstance();
        int hour = calendar.get(Calendar.HOUR_OF_DAY);
        int minute = calendar.get(Calendar.MINUTE);
        mPaint.setTextSize(mHourR*0.4f);
        mPaint.setAlpha(255);
        //设置文本对齐
        mPaint.setTextAlign(Paint.Align.CENTER);
        float y =-mPaint.getFontMetrics().bottom;

        String min=String.valueOf(minute);
        if (minute<10) {
            min="0"+String.valueOf(minute);
        }

        canvas.drawText(hour+":"+min,0f,y,mPaint);

        int month = calendar.get(Calendar.MONTH)+1;
        int day = calendar.get(Calendar.DAY_OF_MONTH);
        int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK)-1;
        mPaint.setTextSize(mHourR*0.16f);
        mPaint.setAlpha(255);
        mPaint.setTextAlign(Paint.Align.CENTER);
        canvas.drawText(month+"."+day+" 星期"+getCnStr(dayOfWeek),0f,-mPaint.getFontMetrics().ascent,mPaint);
    }


    /**
     * 数字转换字符
     * @param number
     * @return
     */
    private String getCnStr(int number) {
        String s = String.valueOf(number);
        StringBuffer sb = new StringBuffer();

        String result = "";
        if (s.length()>1){
            if (Integer.parseInt(String.valueOf(s.charAt(0)))!=1) {
                result+=NUMBER_TEXT_LIST[Integer.parseInt(String.valueOf(s.charAt(0)))];
            }
            result += "十";
            if (Integer.parseInt(String.valueOf(s.charAt(1)))>0) {
                result +=NUMBER_TEXT_LIST[Integer.parseInt(String.valueOf(s.charAt(1)))];
            }
        } else {
            result += NUMBER_TEXT_LIST[Integer.parseInt(String.valueOf(s.charAt(0)))];
        }

        return result;
    }
}