content/ContextWrapper.html?is-external=true#deleteSharedPreferences-java.lang.String-" title="class or interface in android.content">deleteSharedPreferences</a>, <a href="http://d.android.com/reference/android/content/ContextWrapper.html?is-external=true#enforceCallingOrSelfPermission-java.lang.String-java.lang.String-" title="class or interface in android.content">enforceCallingOrSelfPermission</a>, <a href="http://d.android.com/reference/android/content/ContextWrapper.html?is-external=true#enforceCalling