Android应用中怎么自定义一个圆形进度条

//1.画圆环//原点坐标float circleX = width / 2;float circleY = width / 2;//半径float radius = width / 2 - roundWidth / 2;//设置画笔的属性paint.setColor(roundColor);paint.setStrokeWidth(roundWidth);paint.setStyle(Paint.Style.STROKE);canvas.drawCircle(circleX, circleY, radius, paint);//2.画圆弧RectF oval = new RectF(roundWidth/2,roundWidth/2,width-roundWidth/2,width - roundWidth/2);paint.setColor(roundProgressColor);canvas.drawArc(oval, 0, progress * 360 / max, false, paint);//3.画文本paint.setTextSize(textSize);paint.setColor(textColor);paint.setStrokeWidth(0);String text = progress * 100 / max + "%";Rect bounds = new Rect();paint.getTextBounds(text, 0, text.length(), bounds);canvas.drawText(text, width / 2 - bounds.width() / 2, width / 2 + bounds.height() / 2, paint);