在Android的SDK文档，所有与@可绘制/ my_image XML语法使用的例子直接针对存储在res /目录绘制在我的项目图片。

In the Android SDK documentation, all of the examples used with the @drawable/my_image xml syntax directly address images that are stored in the res/drawable directory in my project.

我想知道，如果它是明确不行的绘制目录中创建一个子目录。

I am wondering if it is explicitly not okay to create a sub directory within the drawable directory.

例如，如果我有以下的目录布局：

For example, if I had the following directory layout:

res/drawable
-- sandwiches
  -- tunaOnRye.png
  -- hamAndSwiss.png
-- drinks
  -- coldOne.png
  -- hotTea.png

我可以引用一个金枪鱼沙拉三明治的图像作为@可绘制/三明治/ tunaOnRye

Could I reference the image of a tuna salad sandwich as @drawable/sandwiches/tunaOnRye

还是我必须保持层级扁平的绘制目录。

Or do I have to keep the hierarchy flat in the drawable directory.

推荐答案

没有，资源机制不支持子文件夹中的绘制目录，所以是 - 你需要保持该层次结构扁平

No, the resources mechanism doesn't support subfolders in the drawable directory, so yes - you need to keep that hierarchy flat.

您显示的目录布局将导致没有被现有的图像。

The directory layout you showed would result in none of the images being available.

这是我自己的实验似乎有其内的所有项目的子文件夹，在水库内/绘制文件夹，就会造成资源编译器失败 - $ P $数据的正确生成pventing的 R.java 文件。

From my own experiments it seems that having a subfolder with any items in it, within the res/drawable folder, will cause the resource compiler to fail -- preventing the R.java file from being generated correctly.