I think if I understand correctly this is what you are doing.

ImageView view = (ImageView) findViewById(R.id.someImage);
view.setOnClickListener(new OnClickListener() {
  public void onClick(View view) {
   ImageView imageView = (ImageView) view;
   assert(R.id.someImage == imageView.getId());
   switch(getDrawableId(imageView)) {
    case R.drawable.foo:
     imageView.setDrawableResource(R.drawable.bar);
     break;
    case R.drawable.bar:
    default:
     imageView.setDrawableResource(R.drawable.foo);

     break;
  }
});
 

Right? So that function getDrawableId() doesn't exist. You can't get a the id that a drawable was instantiated from because the id is just a reference to the location of data on the device on how to construct a drawable. Once the drawable is constructed it doesn't have a way to get back the resourceId that was used to create it. But you could make it work something like this:

ImageView view = (ImageView) findViewById(R.id.someImage);
view.setOnClickListener(new OnClickListener() {
  public void onClick(View view) {
   ImageView imageView = (ImageView) view;
   assert(R.id.someImage == imageView.getId());
   Integer integer = (Integer) imageView.getTag();
   integer = integer == null ? 0 : integer;
   switch(integer) {
    case R.drawable.foo:
     imageView.setDrawableResource(R.drawable.bar);
     imageView.setTag(R.drawable.bar);
     break;
    case R.drawable.bar:
    default:
     imageView.setDrawableResource(R.drawable.foo);
     imageView.setTag(R.drawable.foo);
     break;
  }
});