Update the TimePicker hour format when toggling 24-hour mode

        mAllowAutoAdvance = true;

        // Updates mHourFormat variables used below.

        updateHourFormat(mLocale, mIs24Hour);

        // Update hour text field.

        final int minHour = mHourFormatStartsAtZero ? 0 : 1;

        final int maxHour = (mIs24Hour ? 23 : 11) + minHour;

        mHourView.setRange(minHour, maxHour);

        mHourView.setShowLeadingZeroes(mHourFormatShowLeadingZero);

        updateHourFormat();

        // Initialize with current time.

        mTempCalendar = Calendar.getInstance(mLocale);

    }

    /**

     * Determines how the hour should be formatted and updates member variables

     * related to hour formatting.

     *

     * @param locale the locale in which the view is displayed

     * @param is24Hour whether the view is in 24-hour (hour-of-day) mode

     * Updates hour formatting based on the current locale and 24-hour mode.

     * <p>

     * Determines how the hour should be formatted, sets member variables for

     * leading zero and starting hour, and sets the hour view's presentation.

     */

    private void updateHourFormat(Locale locale, boolean is24Hour) {

    private void updateHourFormat() {

        final String bestDateTimePattern = DateFormat.getBestDateTimePattern(

                locale, is24Hour ? "Hm" : "hm");

                mLocale, mIs24Hour ? "Hm" : "hm");

        final int lengthPattern = bestDateTimePattern.length();

        boolean showLeadingZero = false;

        char hourFormat = '\0';

        mHourFormatShowLeadingZero = showLeadingZero;

        mHourFormatStartsAtZero = hourFormat == 'K' || hourFormat == 'H';

        // Update hour text field.

        final int minHour = mHourFormatStartsAtZero ? 0 : 1;

        final int maxHour = (mIs24Hour ? 23 : 11) + minHour;

        mHourView.setRange(minHour, maxHour);

        mHourView.setShowLeadingZeroes(mHourFormatShowLeadingZero);

    }

    private static final CharSequence obtainVerbatim(String text) {

            mIs24Hour = is24Hour;

            mInitialHourOfDay = getHour();

            updateHourFormat();

            updateUI(mRadialTimePickerView.getCurrentItemShowing());

        }

    }

    /**

     * Converts hour-of-day (0-23) time into a localized hour number.

     * <p>

     * The localized value may be in the range (0-23), (1-24), (0-11), or

     * (1-12) depending on the locale. This method does not handle leading

     * zeroes.

     *

     * @param hourOfDay the hour-of-day (0-23)

     * @return a localized hour number