How to define an array of integers in a declare-styleable?

Question

I'm implementing my own <declare-styleable> for a custom View (following the instructions here). I'd like to be able to specify an array of integers as one of the possible XML attributes. How do I:

1. Specify the integer array as an XML attribute in attrs.xml?
2. Get it from the TypedArray after calling obtainStyledAttributes() in my custom View?

Answer 1

1. You can declare it as a reference.

   <declare-styleable name="MyView">
       <attr name="array" format="reference"/>
   </declare-styleable>
   

2. It looks like TypeArray hasn't getIntArray method so you have to get it directly from the resources.

   final TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.MyView);
   final int id = array.getResourceId(R.styleable.MyView_array, 0);
   
   if (id != 0) {
       final int[] values = getResources().getIntArray(id);
   }
   
   array.recycle()