Merge "Docs: clarify getSharedPreferences behavior" into qt-dev

     * to any callers for the same name, meaning they will see each other's

     * edits as soon as they are made.

     *

     * This method is thead-safe.

     * <p>This method is thread-safe.

     *

     * @param name Desired preferences file. If a preferences file by this name

     * does not exist, it will be created when you retrieve an

     * editor (SharedPreferences.edit()) and then commit changes (Editor.commit()).

     * <p>If the preferences directory does not already exist, it will be created when this method

     * is called.

     *

     * <p>If a preferences file by this name does not exist, it will be created when you retrieve an

     * editor ({@link SharedPreferences#edit()}) and then commit changes ({@link

     * SharedPreferences.Editor#commit()} or {@link SharedPreferences.Editor#apply()}).

     *

     * @param name Desired preferences file.

     * @param mode Operating mode.

     *

     * @return The single {@link SharedPreferences} instance that can be used