Android自定義實(shí)現(xiàn)繪制時(shí)鐘表盤

    /**     * 通過(guò)改變角度值,獲取不同角度方向的外圓一點(diǎn)到圓心連線過(guò)內(nèi)圓一點(diǎn)的路徑坐標(biāo)集合     * @param x0 圓心x     * @param y0 圓心y     * @param outRadius 外圓半徑     * @param innerRadius 內(nèi)圓半徑     * @param angle 角度     * @return 返回     */    private float[] getDialPaths(int x0,int y0,int outRadius,int innerRadius,int angle){        float[] paths = new float[4];        paths[0]  = (float) (x0 + outRadius * Math.cos(angle * Math.PI / 180));        paths[1]  = (float) (y0 + outRadius * Math.sin(angle * Math.PI / 180));        paths[2]  = (float) (x0 + innerRadius * Math.cos(angle * Math.PI / 180));        paths[3]  = (float) (y0 + innerRadius * Math.sin(angle * Math.PI / 180));        return paths;    }

for (int i = 0; i < 60 ; i++) {            if (i % 5 == 0){                //獲取刻度路徑                float[] dialKdPaths = getDialPaths(halfMinLength, halfMinLength, halfMinLength - 8, halfMinLength * 5 / 6, -i * 6);                canvas.drawLines(dialKdPaths,paintKd30);                float[] dialPathsStr = getDialPaths(halfMinLength, halfMinLength, halfMinLength - 8, halfMinLength * 3 / 4, -i * 6);                canvas.drawText(strKedu[i/5],dialPathsStr[2] - 16,dialPathsStr[3] + 14,paintKd30Text);                continue;            }            float[] dialKdPaths = getDialPaths(halfMinLength, halfMinLength, halfMinLength - 8, halfMinLength * 7 / 8, -i * 6);            canvas.drawLines(dialKdPaths,paintKdSecond);        }

        //時(shí)針繪制        canvas.save(); //保存之前內(nèi)容        canvas.rotate(angleHour,halfMinLength,halfMinLength); //旋轉(zhuǎn)的是畫布,從而得到指針旋轉(zhuǎn)的效果        canvas.drawLine(halfMinLength,halfMinLength,halfMinLength,halfMinLength*3/4,paintHour);        canvas.restore(); //恢復(fù)

/**     * 更新時(shí)分秒針的角度,開始繪制     */    public void startRun(){        new Thread(new Runnable() {            @Override            public void run() {                while (drawable){                    try {                        Thread.sleep(1000); // 睡1s                        updataAngleSecond(); //更新秒針角度                        updataAngleMinute(); //更新分針角度                        updataAngleHour(); //更新時(shí)針角度                        postInvalidate(); //重新繪制                    } catch (InterruptedException e) {                        e.printStackTrace();                    }                }            }        }).start();    }

public class DialView extends View {
    private boolean drawable = true; //是否可以繪制    private int halfMinLength; //最小寬/高的一半長(zhǎng)度    private Paint paintKd30; //時(shí)針刻度線畫筆    private Paint paintKd30Text; // 時(shí)針數(shù)字畫筆    private Paint paintKdSecond; //秒針刻度線畫筆    private Paint paintHour;  //時(shí)針畫筆    private Paint paintCircleBar;//指針圓心畫筆    private Paint paintMinute; //分針畫筆    private Paint paintSecond; //秒針畫筆    private float angleHour; //時(shí)針旋轉(zhuǎn)角度    private float angleMinute; //分針旋轉(zhuǎn)角度    private float angleSecond; //秒針旋轉(zhuǎn)角度    private int cuurSecond; //當(dāng)前秒    private int cuurMinute; //當(dāng)前分    private int cuurHour; //當(dāng)前時(shí)    private Calendar mCalendar;    private boolean isMorning = true; //上午/下午    private String[] strKedu = {"3","2","1","12","11","10","9","8","7","6","5","4"};

    public DialView(Context context) {        this(context,null);    }
    public DialView(Context context, AttributeSet attrs) {        this(context, attrs,-1);    }
    public DialView(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);
        initPaint(); //初始化畫筆        initTime(); //初始化時(shí)間
    }
    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        super.onMeasure(widthMeasureSpec, heightMeasureSpec);        int width = MeasureSpec.getSize(widthMeasureSpec);        int height = MeasureSpec.getSize(heightMeasureSpec);        halfMinLength = Math.min(width,height) / 2;        System.out.println(halfMinLength);    }
    @Override    protected void onDraw(Canvas canvas) {        super.onDraw(canvas);        //表盤刻度繪制        for (int i = 0; i < 60 ; i++) {            if (i % 5 == 0){                //獲取刻度路徑                float[] dialKdPaths = getDialPaths(halfMinLength, halfMinLength, halfMinLength - 8, halfMinLength * 5 / 6, -i * 6);                canvas.drawLines(dialKdPaths,paintKd30);                float[] dialPathsStr = getDialPaths(halfMinLength, halfMinLength, halfMinLength - 8, halfMinLength * 3 / 4, -i * 6);                canvas.drawText(strKedu[i/5],dialPathsStr[2] - 16,dialPathsStr[3] + 14,paintKd30Text);                continue;            }            float[] dialKdPaths = getDialPaths(halfMinLength, halfMinLength, halfMinLength - 8, halfMinLength * 7 / 8, -i * 6);            canvas.drawLines(dialKdPaths,paintKdSecond);        }        //指針繪制        //時(shí)針繪制        canvas.save(); //保存之前內(nèi)容        canvas.rotate(angleHour,halfMinLength,halfMinLength); //旋轉(zhuǎn)的是畫布,從而得到指針旋轉(zhuǎn)的效果        canvas.drawLine(halfMinLength,halfMinLength,halfMinLength,halfMinLength*3/4,paintHour);        canvas.restore(); //恢復(fù)        //繪制分針        canvas.save();        canvas.rotate(angleMinute,halfMinLength,halfMinLength); //旋轉(zhuǎn)的是畫布,從而得到指針旋轉(zhuǎn)的效果        canvas.drawLine(halfMinLength,halfMinLength,halfMinLength,halfMinLength/2,paintMinute);        paintCircleBar.setColor(Color.rgb(75,75,75));        paintCircleBar.setShadowLayer(4,4,8,Color.argb(70,40,40,40));        canvas.drawCircle(halfMinLength,halfMinLength,24,paintCircleBar);        canvas.restore();        //繪制秒針        canvas.save();        canvas.rotate(angleSecond,halfMinLength,halfMinLength); //旋轉(zhuǎn)的是畫布,從而得到指針旋轉(zhuǎn)的效果        canvas.drawLine(halfMinLength,halfMinLength + 40,halfMinLength,halfMinLength / 4 - 20,paintSecond);        paintCircleBar.setColor(Color.rgb(178,34,34));        paintCircleBar.setShadowLayer(4,4,8,Color.argb(50,80,0,0));        canvas.drawCircle(halfMinLength,halfMinLength,12,paintCircleBar);        canvas.restore();    }
    /**     * 初始化時(shí),分,秒     */    private void initTime() {        mCalendar = Calendar.getInstance();        cuurHour = mCalendar.get(Calendar.HOUR_OF_DAY);        cuurMinute = mCalendar.get(Calendar.MINUTE);        cuurSecond = mCalendar.get(Calendar.SECOND);        if (cuurHour >= 12){            cuurHour = cuurHour - 12;            isMorning = false;        }else{            isMorning = true;        }        angleSecond = cuurSecond * 6f;        angleMinute = cuurMinute * 6f;        angleHour = cuurHour * 6f * 5f;    }
    /**     * 更新時(shí)分秒針的角度,開始繪制     */    public void startRun(){        new Thread(new Runnable() {            @Override            public void run() {                while (drawable){                    try {                        Thread.sleep(1000); // 睡1s                        updataAngleSecond(); //更新秒針角度                        updataAngleMinute(); //更新分針角度                        updataAngleHour(); //更新時(shí)針角度                        postInvalidate(); //重新繪制                    } catch (InterruptedException e) {                        e.printStackTrace();                    }                }            }        }).start();    }
    private void updataAngleHour() {        //更新時(shí)針角度        angleHour = angleHour + (30f/3600);        if (angleHour >= 360){            angleHour = 0;            cuurHour = 0;        }    }
    private void updataAngleMinute() {        //更新分針角度        angleMinute = angleMinute + 0.1f;        if (angleMinute >= 360){            angleMinute = 0;            cuurMinute = 0;            cuurHour += 1;        }    }
    private void updataAngleSecond() {        //更新秒針角度        angleSecond = angleSecond + 6;        cuurSecond += 1;        if (angleSecond >= 360){            angleSecond = 0;            cuurSecond = 0;            cuurMinute += 1;            //一分鐘同步一次本地時(shí)間            mCalendar = Calendar.getInstance();            cuurHour = mCalendar.get(Calendar.HOUR_OF_DAY);            cuurMinute = mCalendar.get(Calendar.MINUTE);            cuurSecond = mCalendar.get(Calendar.SECOND);            if (cuurHour >= 12){                cuurHour = cuurHour - 12;                isMorning = false;            }else{                isMorning = true;            }            angleSecond = cuurSecond * 6f;            angleMinute = cuurMinute * 6f;            angleHour = cuurHour * 6f * 5f;        }    }    /**     * 停止繪制     */    public void stopDrawing(){        drawable = false;    }
    /**     * 通過(guò)改變角度值,獲取不同角度方向的外圓一點(diǎn)到圓心連線過(guò)內(nèi)圓一點(diǎn)的路徑坐標(biāo)集合     * @param x0 圓心x     * @param y0 圓心y     * @param outRadius 外圓半徑     * @param innerRadius 內(nèi)圓半徑     * @param angle 角度     * @return 返回     */    private float[] getDialPaths(int x0,int y0,int outRadius,int innerRadius,int angle){        float[] paths = new float[4];        paths[0]  = (float) (x0 + outRadius * Math.cos(angle * Math.PI / 180));        paths[1]  = (float) (y0 + outRadius * Math.sin(angle * Math.PI / 180));        paths[2]  = (float) (x0 + innerRadius * Math.cos(angle * Math.PI / 180));        paths[3]  = (float) (y0 + innerRadius * Math.sin(angle * Math.PI / 180));        return paths;    }
    /**     * 初始化畫筆參數(shù)     */    private void initPaint() {        paintKd30 = new Paint();        paintKd30.setStrokeWidth(8);        paintKd30.setColor(Color.rgb(75,75,75));        paintKd30.setAntiAlias(true);        paintKd30.setDither(true);        paintKd30.setStrokeCap(Paint.Cap.ROUND);
        paintKd30Text = new Paint();        paintKd30Text.setTextAlign(Paint.Align.LEFT); //左對(duì)齊        paintKd30Text.setStrokeWidth(6); //設(shè)置寬度        paintKd30Text.setTextSize(40); //文字大小        paintKd30Text.setTypeface(Typeface.DEFAULT_BOLD); //加粗        paintKd30Text.setColor(Color.rgb(75,75,75)); //畫筆顏色        paintKd30Text.setAntiAlias(true); //抗鋸齒        paintKd30Text.setDither(true); //抖動(dòng)        paintKd30Text.setStrokeCap(Paint.Cap.ROUND); //筆尖圓角        paintKd30Text.setShadowLayer(4,2,4,Color.argb(60,90,90,90)); //陰影
        paintKdSecond = new Paint();        paintKdSecond.setStrokeWidth(6);        paintKdSecond.setColor(Color.rgb(75,75,75));        paintKdSecond.setAntiAlias(true);        paintKdSecond.setDither(true);        paintKdSecond.setStrokeCap(Paint.Cap.ROUND);        paintKdSecond.setShadowLayer(4,5,10,Color.argb(50,80,80,80));
        paintHour = new Paint();        paintHour.setStrokeWidth(30);        paintHour.setColor(Color.rgb(75,75,75));        paintHour.setAntiAlias(true);        paintHour.setDither(true);        paintHour.setStrokeCap(Paint.Cap.ROUND);        paintHour.setShadowLayer(4,5,10,Color.argb(50,80,80,80));
        paintCircleBar = new Paint();        paintCircleBar.setStrokeWidth(6);//        paintCircleBar.setColor(Color.rgb(178,34,34));        paintCircleBar.setAntiAlias(true);        paintCircleBar.setDither(true);        paintCircleBar.setStrokeCap(Paint.Cap.ROUND);//        paintCircleBar.setShadowLayer(4,5,10,Color.argb(100,80,80,80));
        paintMinute = new Paint();        paintMinute.setStrokeWidth(30);        paintMinute.setColor(Color.rgb(75,75,75));        paintMinute.setAntiAlias(true);        paintMinute.setDither(true);        paintMinute.setStrokeCap(Paint.Cap.ROUND);        paintMinute.setShadowLayer(4,5,10,Color.rgb(80,80,80));
        paintSecond = new Paint();        paintSecond.setStrokeWidth(6);        paintSecond.setColor(Color.rgb(180,30,30));        paintSecond.setAntiAlias(true);        paintSecond.setDither(true);        paintSecond.setStrokeCap(Paint.Cap.ROUND);        paintSecond.setShadowLayer(4,2,10,Color.argb(100,90,90,90));
    }}