Should keys be placed on a xml to be accessed with R.string.key?
<p>I usually place my keys on an xml and access them with <code>R.string.key_name</code> but someone make me notice that I could have inline strings in the code.</p>

<p>I feel that I might use that key in different places and if I change its name I would just rename in the xml but perhaps that doesn't make too much sense with keys.</p>

<p>What do you think?</p>
