为什么getWidth在Log中给出问题而不是getHeight？

Question

我有以下代码：

Log.i("IX GETX and GETY", " " + f.getWidth()-iv.getWidth() + " " + f.getHeight()-iv.getHeight());

我收到以下错误：The operator - is undefined for the argument type(s) String, int

getWidth和getHeight都有相同的计算。

Answer 1

尝试用括号括起你的计算，如下所示：

Log.i("IX GETX and GETY", " " + (f.getWidth()-iv.getWidth()) + " " + (f.getHeight()-iv.getHeight()));