android画圆示例

Paint paint = new Paint(); paint.setColor(Color.RED); int width_dp = 10; int width_px = UIUtils.dip2Px(width_dp); paint.setStrokeWidth(width_px); paint.setAntiAlias(true); paint.setStyle(Style.STROKE); RectF oval = new RectF(mIvIcon.getLeft()+UIUtils.dip2Px(5), mIvIcon.getTop()+UIUt