Android R: A Rough Start

I had hoped to have a first version of Elements of Android R out soon.
However, so far, the only Android R feature that I have found that works
as advertised is the one-time permission grant. Everything else that I have tried ���
from ���All Files Access��� to
raw paths to
bubbles ��� has failed.
And I���m spending time fighting regressions to boot (though, technically, I
suppose the bubbles problem is a regression���).

I will continue poking at Android R. However, on the
whole, I am waiting for DP2, and I will hopefully be able to write more positive
things about Android R by then.