我有些不解使用SRC或背景的的ImageView 。我知道前者是指这个内容的ImageView ，后者是指的ImageView 的背景。但是，如何检测使用哪一个？我看不出差别。

I am a little puzzled with using src or background for an ImageView. I know the former means the content of this ImageView and the latter means the background of the ImageView. But how to detect which one to use? I don't see the difference.

推荐答案

所有意见可以采取的背景图像。

All views can take a background image.

在的src 到的ImageView 有附加功能：

和更多的，你会发现在的文档。

And more that you may find in the docs.