Will SharedPreference be destroyed if the Context has been destroyed?
<p>Will SharedPreference be destroyed if the Context has been destroyed?</p>

<p>For example, if the Context is an Activity, and this Activity has quit.</p>

<p>I tried in my code, and the SharedPreference turns to be null, as well as the Context.</p>

<p>I also tried to find some clues in the opensource code, but it's complicated for me. </p>
