图片部分区域的填充问题,想了好久了

直接画一个呗，，，Paint paint =new Paint();
paint.setAntiAlias(true);//去锯齿
paint.setColor(Color.RED);
paint.setStyle(Paint.Style.STROKE);//设置空心style
paint.setStrokeWidth(3);//设置空心宽度
canvas.drawCircle(40,40,30, paint);
canvas.drawRect(10,90,70,150, paint);
canvas.drawRect(10,170,70,200, paint);
//画个椭圆
RectF re=new RectF(10,220,70,250);
canvas.drawOval(re, paint);