我可以为我以编程方式构造的可绘制对象分配ID吗？

Question

A drawable, which was created by XML, can be referenced in code by

    R.drawable.my_drawable

So, I assume that drawables do have a resource id.

When I look through the docs, i cant find a method:

    myDrawable.setId(id)

So, though I can construct a drawable in code, i dont see how I can assign a id to a drawable, which I created in code?

Answer 1

R.drawable.my_drawable是android自动为您的可绘制对象生成的唯一R.drawable.my_drawable无需设置它，并且如果需要引用它，则常量R.drawable.my_drawable可以使用。