我想在我的应用程序中绘制这种类型的圆。我能够使用Canvas绘制圆形,但我不知道如何制作分区?
有人能建议我如何制作分区圆吗?
编辑:- 我想画出内圆中的线。
提前致谢。
这里是符合您需求的可用代码......
修改代码:
Paint paint1 = new Paint();
Paint paint2 = new Paint();
Paint paint3 = new Paint();
Paint paint4 = new Paint();
Paint paint5 = new Paint();
final RectF rect = new RectF();
int mRadius = 130;
//Example values
rect.set(getWidth()/2- mRadius, getHeight()/2 - mRadius, getWidth()/2 + mRadius, getHeight()/2 + mRadius);
paint1.setColor(Color.GREEN);
paint1.setStrokeWidth(mRadius/2);
paint1.setAntiAlias(true);
paint1.setStrokeCap(Paint.Cap.BUTT);
paint1.setStyle(Paint.Style.STROKE);
paint2.setColor(Color.RED);
paint2.setStrokeWidth(mRadius/2);
paint2.setAntiAlias(true);
paint2.setStrokeCap(Paint.Cap.BUTT);
paint2.setStyle(Paint.Style.STROKE);
paint3.setColor(Color.BLUE);
paint3.setStrokeWidth(5);
paint3.setAntiAlias(true);
paint3.setStrokeCap(Paint.Cap.BUTT);
paint3.setStyle(Paint.Style.STROKE);
canvas.drawArc(rect, 0, 60, false, paint1);
canvas.drawArc(rect, 60, 60, false, paint2);
canvas.drawArc(rect, 120, 60, false, paint1);
canvas.drawArc(rect, 180, 60, false, paint2);
canvas.drawArc(rect, 240, 60, false, paint1);
canvas.drawArc(rect, 300, 60, false, paint2);
canvas.drawLine(getWidth()/2,
getHeight()/2, getWidth()/2-mRadius/2, getHeight()/2-mRadius/2,paint3);
canvas.drawLine(getWidth()/2,
getHeight()/2, getWidth()/2+mRadius/2, getHeight()/2-mRadius/2,paint3);
canvas.drawLine(getWidth()/2,
getHeight()/2, getWidth()/2-mRadius/2, getHeight()/2+mRadius/2,paint3);
canvas.drawLine(getWidth()/2,
getHeight()/2, getWidth()/2+mRadius/2, getHeight()/2+mRadius/2,paint3);
canvas.drawLine(getWidth()/2,
getHeight()/2, getWidth()/2-mRadius/4-mRadius/2, getHeight()/2,paint3);
canvas.drawLine(getWidth()/2,
getHeight()/2, getWidth()/2+mRadius/4+mRadius/2, getHeight()/2,paint3);
paint4.setColor(Color.BLACK);
canvas.drawCircle(getWidth()/2, getHeight()/2, mRadius/2, paint4);
paint5.setColor(Color.YELLOW);
paint5.setStrokeWidth(3);
paint5.setAntiAlias(true);
paint5.setStrokeCap(Paint.Cap.BUTT);
paint5.setStyle(Paint.Style.STROKE);
canvas.drawCircle(getWidth()/2, getHeight()/2, mRadius/2, paint5);
我希望现在您对我的回答感到满意....
我有一个想法,首先使用分区在圆内绘制。
can.drawArc(oval, startAngle, sweepAngle, useCenter, paint)
将角度值取为0到60,然后再以同一中心绘制另一个弧,从60到120等等。每次在Paint中设置不同的颜色。完成内部圆后,大部分工作就完成了。现在在第一个圆之上绘制一个半径较小、中心相同的白色圆。这样就会覆盖在第一个圆上。
希望这会对你有所帮助 :)
嘿,我找到了我的问题的解决方案。
final RectF rect1 = new RectF();
int mWidth = this.getWidth()/2;
int mHeight = this.getHeight()/2;
int mRadius = 130, mRadius1 = 50;
rect1.set(mWidth -(mRadius-mRadius1), mHeight - (mRadius-mRadius1), mWidth + (mRadius-mRadius1), mHeight + (mRadius-mRadius1));
Paint paintLines = new Paint();
paintLines.setColor(Color.BLACK);
paintLines.setStrokeWidth((mRadius-mRadius1)/2);
paintLines.setAntiAlias(false);
paintLines.setStrokeCap(Paint.Cap.BUTT);
paintLines.setStyle(Paint.Style.STROKE);
canvas.drawArc(rect1, 0, 1, false, paintLines);
canvas.drawArc(rect1, 30, 1, false, paintLines);
canvas.drawArc(rect1, 60, 1, false, paintLines);
canvas.drawArc(rect1, 90, 1, false, paintLines);
canvas.drawArc(rect1, 120, 1, false, paintLines);
canvas.drawArc(rect1, 150, 1, false, paintLines);