是否可以借鉴Android的空缺数字？默认情况下圆和矩形填充。

Is it possible to draw unfilled figures on Android? By default circles and rectangles are filled.

推荐答案

您需要更改油漆风格，中风，如果你只是想有没有填充的轮廓：

You need to change the Paint style to stroke if you just want an outline with no fill:

Paint p = new Paint();
p.setStyle(Paint.Style.STROKE);