| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.support.v17.leanback.widget.picker; |
| |
| import android.content.res.Resources; |
| import android.os.Build; |
| |
| import java.text.DateFormatSymbols; |
| import java.util.Calendar; |
| import java.util.Locale; |
| |
| /** |
| * Utility class that provides Date/Time related constants as well as locale-specific calendar for |
| * both {@link DatePicker} and {@link TimePicker}. |
| */ |
| class PickerUtility { |
| |
| // Whether the API version supports the use of {@link DateFormat#getBestDateTimePattern()} |
| static final boolean SUPPORTS_BEST_DATE_TIME_PATTERN = |
| Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2; |
| public static class DateConstant { |
| public final Locale locale; |
| public final String[] months; |
| public final String[] days; |
| |
| private DateConstant(Locale locale, Resources resources) { |
| this.locale = locale; |
| DateFormatSymbols symbols = DateFormatSymbols.getInstance(locale); |
| months = symbols.getShortMonths(); |
| Calendar calendar = Calendar.getInstance(locale); |
| days = createStringIntArrays(calendar.getMinimum(Calendar.DAY_OF_MONTH), |
| calendar.getMaximum(Calendar.DAY_OF_MONTH), "%02d"); |
| } |
| } |
| |
| public static class TimeConstant { |
| public final Locale locale; |
| public final String[] hours12; |
| public final String[] hours24; |
| public final String[] minutes; |
| public final String[] ampm; |
| |
| private TimeConstant(Locale locale, Resources resources) { |
| this.locale = locale; |
| DateFormatSymbols symbols = DateFormatSymbols.getInstance(locale); |
| hours12 = createStringIntArrays(1, 12, "%02d"); |
| hours24 = createStringIntArrays(0, 23, "%02d"); |
| minutes = createStringIntArrays(0, 59, "%02d"); |
| ampm = symbols.getAmPmStrings(); |
| } |
| } |
| |
| public static DateConstant getDateConstantInstance(Locale locale, Resources resources) { |
| return new DateConstant(locale, resources); |
| } |
| |
| public static TimeConstant getTimeConstantInstance(Locale locale, Resources resources) { |
| return new TimeConstant(locale, resources); |
| } |
| |
| |
| public static String[] createStringIntArrays(int firstNumber, int lastNumber, String format) { |
| String[] array = new String[lastNumber - firstNumber + 1]; |
| for (int i = firstNumber; i <= lastNumber; i++) { |
| if (format != null) { |
| array[i - firstNumber] = String.format(format, i); |
| } else { |
| array[i - firstNumber] = String.valueOf(i); |
| } |
| } |
| return array; |
| } |
| |
| public static Calendar getCalendarForLocale(Calendar oldCalendar, Locale locale) { |
| if (oldCalendar == null) { |
| return Calendar.getInstance(locale); |
| } else { |
| final long currentTimeMillis = oldCalendar.getTimeInMillis(); |
| Calendar newCalendar = Calendar.getInstance(locale); |
| newCalendar.setTimeInMillis(currentTimeMillis); |
| return newCalendar; |
| } |
| } |
| } |