绘制模拟Android钟 ####时钟表盘

protected void onDraw(Canvas canvas) {        super.onDraw(canvas);        //绘制时钟的外圈，        circlePaint.setColor(circleColor01);        canvas.drawCircle(this.getWidth() / 2, this.getHeight() / 2,                this.getWidth() / 2, circlePaint);        circlePaint.setColor(circleColor02);        canvas.drawCircle(this.getWidth() / 2, this.getHeight() / 2,                this.getWidth() / 2 - circleWidth, circlePaint);        //绘制时钟的表盘        canvas.save();        for (int i=0;i<12;i++) {            canvas.drawLine(this.getWidth()/2,20*density,                    this.getWidth()/2,circleWidth + 1*density,linePaint);            canvas.rotate(30,this.getWidth()/2,this.getHeight()/2);        }        canvas.restore();        //刻度值数字        //绘制小时，分钟和秒数针        canvas.save();        canvas.rotate(hour * 30 + minute / 2, this.getWidth() / 2, this.getHeight() / 2);        timerPaint.setStrokeWidth(5.0f * density);        canvas.drawLine(this.getWidth() / 2, this.getHeight() / 2, this.getWidth() / 2,                circleWidth + (this.getHeight() / 5) * density, timerPaint);        canvas.restore();        canvas.save();        canvas.rotate(minute * 6, this.getWidth() / 2, this.getHeight() / 2);        timerPaint.setStrokeWidth(4.0f * density);        canvas.drawLine(this.getWidth() / 2, this.getHeight() / 2,                this.getWidth() / 2, circleWidth + (this.getHeight() / 7) * density, timerPaint);        canvas.restore();        canvas.save();        canvas.rotate(second * 6,this.getWidth()/2,this.getHeight()/2);        timerPaint.setStrokeWidth(3.0f*density);        canvas.drawLine(this.getWidth()/2,this.getHeight()/2,                this.getWidth()/2,circleWidth+(this.getHeight()/9)*density,timerPaint);        canvas.restore();    }

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