| /* |
| * Copyright (C) 2006 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.text.format; |
| |
| import com.android.internal.R; |
| |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| |
| import java.util.Calendar; |
| import java.util.Date; |
| import java.util.Formatter; |
| import java.util.GregorianCalendar; |
| import java.util.Locale; |
| import java.util.TimeZone; |
| |
| /** |
| * This class contains various date-related utilities for creating text for things like |
| * elapsed time and date ranges, strings for days of the week and months, and AM/PM text etc. |
| */ |
| public class DateUtils |
| { |
| private static final Object sLock = new Object(); |
| private static final int[] sDaysLong = new int[] { |
| com.android.internal.R.string.day_of_week_long_sunday, |
| com.android.internal.R.string.day_of_week_long_monday, |
| com.android.internal.R.string.day_of_week_long_tuesday, |
| com.android.internal.R.string.day_of_week_long_wednesday, |
| com.android.internal.R.string.day_of_week_long_thursday, |
| com.android.internal.R.string.day_of_week_long_friday, |
| com.android.internal.R.string.day_of_week_long_saturday, |
| }; |
| private static final int[] sDaysMedium = new int[] { |
| com.android.internal.R.string.day_of_week_medium_sunday, |
| com.android.internal.R.string.day_of_week_medium_monday, |
| com.android.internal.R.string.day_of_week_medium_tuesday, |
| com.android.internal.R.string.day_of_week_medium_wednesday, |
| com.android.internal.R.string.day_of_week_medium_thursday, |
| com.android.internal.R.string.day_of_week_medium_friday, |
| com.android.internal.R.string.day_of_week_medium_saturday, |
| }; |
| private static final int[] sDaysShort = new int[] { |
| com.android.internal.R.string.day_of_week_short_sunday, |
| com.android.internal.R.string.day_of_week_short_monday, |
| com.android.internal.R.string.day_of_week_short_tuesday, |
| com.android.internal.R.string.day_of_week_short_wednesday, |
| com.android.internal.R.string.day_of_week_short_thursday, |
| com.android.internal.R.string.day_of_week_short_friday, |
| com.android.internal.R.string.day_of_week_short_saturday, |
| }; |
| private static final int[] sDaysShortest = new int[] { |
| com.android.internal.R.string.day_of_week_shortest_sunday, |
| com.android.internal.R.string.day_of_week_shortest_monday, |
| com.android.internal.R.string.day_of_week_shortest_tuesday, |
| com.android.internal.R.string.day_of_week_shortest_wednesday, |
| com.android.internal.R.string.day_of_week_shortest_thursday, |
| com.android.internal.R.string.day_of_week_shortest_friday, |
| com.android.internal.R.string.day_of_week_shortest_saturday, |
| }; |
| private static final int[] sMonthsStandaloneLong = new int [] { |
| com.android.internal.R.string.month_long_standalone_january, |
| com.android.internal.R.string.month_long_standalone_february, |
| com.android.internal.R.string.month_long_standalone_march, |
| com.android.internal.R.string.month_long_standalone_april, |
| com.android.internal.R.string.month_long_standalone_may, |
| com.android.internal.R.string.month_long_standalone_june, |
| com.android.internal.R.string.month_long_standalone_july, |
| com.android.internal.R.string.month_long_standalone_august, |
| com.android.internal.R.string.month_long_standalone_september, |
| com.android.internal.R.string.month_long_standalone_october, |
| com.android.internal.R.string.month_long_standalone_november, |
| com.android.internal.R.string.month_long_standalone_december, |
| }; |
| private static final int[] sMonthsLong = new int [] { |
| com.android.internal.R.string.month_long_january, |
| com.android.internal.R.string.month_long_february, |
| com.android.internal.R.string.month_long_march, |
| com.android.internal.R.string.month_long_april, |
| com.android.internal.R.string.month_long_may, |
| com.android.internal.R.string.month_long_june, |
| com.android.internal.R.string.month_long_july, |
| com.android.internal.R.string.month_long_august, |
| com.android.internal.R.string.month_long_september, |
| com.android.internal.R.string.month_long_october, |
| com.android.internal.R.string.month_long_november, |
| com.android.internal.R.string.month_long_december, |
| }; |
| private static final int[] sMonthsMedium = new int [] { |
| com.android.internal.R.string.month_medium_january, |
| com.android.internal.R.string.month_medium_february, |
| com.android.internal.R.string.month_medium_march, |
| com.android.internal.R.string.month_medium_april, |
| com.android.internal.R.string.month_medium_may, |
| com.android.internal.R.string.month_medium_june, |
| com.android.internal.R.string.month_medium_july, |
| com.android.internal.R.string.month_medium_august, |
| com.android.internal.R.string.month_medium_september, |
| com.android.internal.R.string.month_medium_october, |
| com.android.internal.R.string.month_medium_november, |
| com.android.internal.R.string.month_medium_december, |
| }; |
| private static final int[] sMonthsShortest = new int [] { |
| com.android.internal.R.string.month_shortest_january, |
| com.android.internal.R.string.month_shortest_february, |
| com.android.internal.R.string.month_shortest_march, |
| com.android.internal.R.string.month_shortest_april, |
| com.android.internal.R.string.month_shortest_may, |
| com.android.internal.R.string.month_shortest_june, |
| com.android.internal.R.string.month_shortest_july, |
| com.android.internal.R.string.month_shortest_august, |
| com.android.internal.R.string.month_shortest_september, |
| com.android.internal.R.string.month_shortest_october, |
| com.android.internal.R.string.month_shortest_november, |
| com.android.internal.R.string.month_shortest_december, |
| }; |
| private static final int[] sAmPm = new int[] { |
| com.android.internal.R.string.am, |
| com.android.internal.R.string.pm, |
| }; |
| private static Configuration sLastConfig; |
| private static java.text.DateFormat sStatusTimeFormat; |
| private static String sElapsedFormatMMSS; |
| private static String sElapsedFormatHMMSS; |
| |
| private static final String FAST_FORMAT_HMMSS = "%1$d:%2$02d:%3$02d"; |
| private static final String FAST_FORMAT_MMSS = "%1$02d:%2$02d"; |
| private static final char TIME_PADDING = '0'; |
| private static final char TIME_SEPARATOR = ':'; |
| |
| |
| public static final long SECOND_IN_MILLIS = 1000; |
| public static final long MINUTE_IN_MILLIS = SECOND_IN_MILLIS * 60; |
| public static final long HOUR_IN_MILLIS = MINUTE_IN_MILLIS * 60; |
| public static final long DAY_IN_MILLIS = HOUR_IN_MILLIS * 24; |
| public static final long WEEK_IN_MILLIS = DAY_IN_MILLIS * 7; |
| /** |
| * This constant is actually the length of 364 days, not of a year! |
| */ |
| public static final long YEAR_IN_MILLIS = WEEK_IN_MILLIS * 52; |
| |
| // The following FORMAT_* symbols are used for specifying the format of |
| // dates and times in the formatDateRange method. |
| public static final int FORMAT_SHOW_TIME = 0x00001; |
| public static final int FORMAT_SHOW_WEEKDAY = 0x00002; |
| public static final int FORMAT_SHOW_YEAR = 0x00004; |
| public static final int FORMAT_NO_YEAR = 0x00008; |
| public static final int FORMAT_SHOW_DATE = 0x00010; |
| public static final int FORMAT_NO_MONTH_DAY = 0x00020; |
| public static final int FORMAT_12HOUR = 0x00040; |
| public static final int FORMAT_24HOUR = 0x00080; |
| public static final int FORMAT_CAP_AMPM = 0x00100; |
| public static final int FORMAT_NO_NOON = 0x00200; |
| public static final int FORMAT_CAP_NOON = 0x00400; |
| public static final int FORMAT_NO_MIDNIGHT = 0x00800; |
| public static final int FORMAT_CAP_MIDNIGHT = 0x01000; |
| /** |
| * @deprecated Use |
| * {@link #formatDateRange(Context, Formatter, long, long, int, String) formatDateRange} |
| * and pass in {@link Time#TIMEZONE_UTC Time.TIMEZONE_UTC} for the timeZone instead. |
| */ |
| @Deprecated |
| public static final int FORMAT_UTC = 0x02000; |
| public static final int FORMAT_ABBREV_TIME = 0x04000; |
| public static final int FORMAT_ABBREV_WEEKDAY = 0x08000; |
| public static final int FORMAT_ABBREV_MONTH = 0x10000; |
| public static final int FORMAT_NUMERIC_DATE = 0x20000; |
| public static final int FORMAT_ABBREV_RELATIVE = 0x40000; |
| public static final int FORMAT_ABBREV_ALL = 0x80000; |
| public static final int FORMAT_CAP_NOON_MIDNIGHT = (FORMAT_CAP_NOON | FORMAT_CAP_MIDNIGHT); |
| public static final int FORMAT_NO_NOON_MIDNIGHT = (FORMAT_NO_NOON | FORMAT_NO_MIDNIGHT); |
| |
| // Date and time format strings that are constant and don't need to be |
| // translated. |
| /** |
| * This is not actually the preferred 24-hour date format in all locales. |
| */ |
| public static final String HOUR_MINUTE_24 = "%H:%M"; |
| public static final String MONTH_FORMAT = "%B"; |
| /** |
| * This is not actually a useful month name in all locales. |
| */ |
| public static final String ABBREV_MONTH_FORMAT = "%b"; |
| public static final String NUMERIC_MONTH_FORMAT = "%m"; |
| public static final String MONTH_DAY_FORMAT = "%-d"; |
| public static final String YEAR_FORMAT = "%Y"; |
| public static final String YEAR_FORMAT_TWO_DIGITS = "%g"; |
| public static final String WEEKDAY_FORMAT = "%A"; |
| public static final String ABBREV_WEEKDAY_FORMAT = "%a"; |
| |
| // This table is used to lookup the resource string id of a format string |
| // used for formatting a start and end date that fall in the same year. |
| // The index is constructed from a bit-wise OR of the boolean values: |
| // {showTime, showYear, showWeekDay}. For example, if showYear and |
| // showWeekDay are both true, then the index would be 3. |
| public static final int sameYearTable[] = { |
| com.android.internal.R.string.same_year_md1_md2, |
| com.android.internal.R.string.same_year_wday1_md1_wday2_md2, |
| com.android.internal.R.string.same_year_mdy1_mdy2, |
| com.android.internal.R.string.same_year_wday1_mdy1_wday2_mdy2, |
| com.android.internal.R.string.same_year_md1_time1_md2_time2, |
| com.android.internal.R.string.same_year_wday1_md1_time1_wday2_md2_time2, |
| com.android.internal.R.string.same_year_mdy1_time1_mdy2_time2, |
| com.android.internal.R.string.same_year_wday1_mdy1_time1_wday2_mdy2_time2, |
| |
| // Numeric date strings |
| com.android.internal.R.string.numeric_md1_md2, |
| com.android.internal.R.string.numeric_wday1_md1_wday2_md2, |
| com.android.internal.R.string.numeric_mdy1_mdy2, |
| com.android.internal.R.string.numeric_wday1_mdy1_wday2_mdy2, |
| com.android.internal.R.string.numeric_md1_time1_md2_time2, |
| com.android.internal.R.string.numeric_wday1_md1_time1_wday2_md2_time2, |
| com.android.internal.R.string.numeric_mdy1_time1_mdy2_time2, |
| com.android.internal.R.string.numeric_wday1_mdy1_time1_wday2_mdy2_time2, |
| }; |
| |
| // This table is used to lookup the resource string id of a format string |
| // used for formatting a start and end date that fall in the same month. |
| // The index is constructed from a bit-wise OR of the boolean values: |
| // {showTime, showYear, showWeekDay}. For example, if showYear and |
| // showWeekDay are both true, then the index would be 3. |
| public static final int sameMonthTable[] = { |
| com.android.internal.R.string.same_month_md1_md2, |
| com.android.internal.R.string.same_month_wday1_md1_wday2_md2, |
| com.android.internal.R.string.same_month_mdy1_mdy2, |
| com.android.internal.R.string.same_month_wday1_mdy1_wday2_mdy2, |
| com.android.internal.R.string.same_month_md1_time1_md2_time2, |
| com.android.internal.R.string.same_month_wday1_md1_time1_wday2_md2_time2, |
| com.android.internal.R.string.same_month_mdy1_time1_mdy2_time2, |
| com.android.internal.R.string.same_month_wday1_mdy1_time1_wday2_mdy2_time2, |
| |
| com.android.internal.R.string.numeric_md1_md2, |
| com.android.internal.R.string.numeric_wday1_md1_wday2_md2, |
| com.android.internal.R.string.numeric_mdy1_mdy2, |
| com.android.internal.R.string.numeric_wday1_mdy1_wday2_mdy2, |
| com.android.internal.R.string.numeric_md1_time1_md2_time2, |
| com.android.internal.R.string.numeric_wday1_md1_time1_wday2_md2_time2, |
| com.android.internal.R.string.numeric_mdy1_time1_mdy2_time2, |
| com.android.internal.R.string.numeric_wday1_mdy1_time1_wday2_mdy2_time2, |
| }; |
| |
| /** |
| * Request the full spelled-out name. For use with the 'abbrev' parameter of |
| * {@link #getDayOfWeekString} and {@link #getMonthString}. |
| * |
| * @more <p> |
| * e.g. "Sunday" or "January" |
| */ |
| public static final int LENGTH_LONG = 10; |
| |
| /** |
| * Request an abbreviated version of the name. For use with the 'abbrev' |
| * parameter of {@link #getDayOfWeekString} and {@link #getMonthString}. |
| * |
| * @more <p> |
| * e.g. "Sun" or "Jan" |
| */ |
| public static final int LENGTH_MEDIUM = 20; |
| |
| /** |
| * Request a shorter abbreviated version of the name. |
| * For use with the 'abbrev' parameter of {@link #getDayOfWeekString} and {@link #getMonthString}. |
| * @more |
| * <p>e.g. "Su" or "Jan" |
| * <p>In most languages, the results returned for LENGTH_SHORT will be the same as |
| * the results returned for {@link #LENGTH_MEDIUM}. |
| */ |
| public static final int LENGTH_SHORT = 30; |
| |
| /** |
| * Request an even shorter abbreviated version of the name. |
| * Do not use this. Currently this will always return the same result |
| * as {@link #LENGTH_SHORT}. |
| */ |
| public static final int LENGTH_SHORTER = 40; |
| |
| /** |
| * Request an even shorter abbreviated version of the name. |
| * For use with the 'abbrev' parameter of {@link #getDayOfWeekString} and {@link #getMonthString}. |
| * @more |
| * <p>e.g. "S", "T", "T" or "J" |
| * <p>In some languages, the results returned for LENGTH_SHORTEST will be the same as |
| * the results returned for {@link #LENGTH_SHORT}. |
| */ |
| public static final int LENGTH_SHORTEST = 50; |
| |
| /** |
| * Return a string for the day of the week. |
| * @param dayOfWeek One of {@link Calendar#SUNDAY Calendar.SUNDAY}, |
| * {@link Calendar#MONDAY Calendar.MONDAY}, etc. |
| * @param abbrev One of {@link #LENGTH_LONG}, {@link #LENGTH_SHORT}, |
| * {@link #LENGTH_MEDIUM}, or {@link #LENGTH_SHORTEST}. |
| * Note that in most languages, {@link #LENGTH_SHORT} |
| * will return the same as {@link #LENGTH_MEDIUM}. |
| * Undefined lengths will return {@link #LENGTH_MEDIUM} |
| * but may return something different in the future. |
| * @throws IndexOutOfBoundsException if the dayOfWeek is out of bounds. |
| */ |
| public static String getDayOfWeekString(int dayOfWeek, int abbrev) { |
| int[] list; |
| switch (abbrev) { |
| case LENGTH_LONG: list = sDaysLong; break; |
| case LENGTH_MEDIUM: list = sDaysMedium; break; |
| case LENGTH_SHORT: list = sDaysShort; break; |
| case LENGTH_SHORTER: list = sDaysShort; break; |
| case LENGTH_SHORTEST: list = sDaysShortest; break; |
| default: list = sDaysMedium; break; |
| } |
| |
| Resources r = Resources.getSystem(); |
| return r.getString(list[dayOfWeek - Calendar.SUNDAY]); |
| } |
| |
| /** |
| * Return a localized string for AM or PM. |
| * @param ampm Either {@link Calendar#AM Calendar.AM} or {@link Calendar#PM Calendar.PM}. |
| * @throws IndexOutOfBoundsException if the ampm is out of bounds. |
| * @return Localized version of "AM" or "PM". |
| */ |
| public static String getAMPMString(int ampm) { |
| Resources r = Resources.getSystem(); |
| return r.getString(sAmPm[ampm - Calendar.AM]); |
| } |
| |
| /** |
| * Return a localized string for the month of the year. |
| * @param month One of {@link Calendar#JANUARY Calendar.JANUARY}, |
| * {@link Calendar#FEBRUARY Calendar.FEBRUARY}, etc. |
| * @param abbrev One of {@link #LENGTH_LONG}, {@link #LENGTH_MEDIUM}, |
| * or {@link #LENGTH_SHORTEST}. |
| * Undefined lengths will return {@link #LENGTH_MEDIUM} |
| * but may return something different in the future. |
| * @return Localized month of the year. |
| */ |
| public static String getMonthString(int month, int abbrev) { |
| // Note that here we use sMonthsMedium for MEDIUM, SHORT and SHORTER. |
| // This is a shortcut to not spam the translators with too many variations |
| // of the same string. If we find that in a language the distinction |
| // is necessary, we can can add more without changing this API. |
| int[] list; |
| switch (abbrev) { |
| case LENGTH_LONG: list = sMonthsLong; break; |
| case LENGTH_MEDIUM: list = sMonthsMedium; break; |
| case LENGTH_SHORT: list = sMonthsMedium; break; |
| case LENGTH_SHORTER: list = sMonthsMedium; break; |
| case LENGTH_SHORTEST: list = sMonthsShortest; break; |
| default: list = sMonthsMedium; break; |
| } |
| |
| Resources r = Resources.getSystem(); |
| return r.getString(list[month - Calendar.JANUARY]); |
| } |
| |
| /** |
| * Return a localized string for the month of the year, for |
| * contexts where the month is not formatted together with |
| * a day of the month. |
| * |
| * @param month One of {@link Calendar#JANUARY Calendar.JANUARY}, |
| * {@link Calendar#FEBRUARY Calendar.FEBRUARY}, etc. |
| * @param abbrev One of {@link #LENGTH_LONG}, {@link #LENGTH_MEDIUM}, |
| * or {@link #LENGTH_SHORTEST}. |
| * Undefined lengths will return {@link #LENGTH_MEDIUM} |
| * but may return something different in the future. |
| * @return Localized month of the year. |
| * @hide Pending API council approval |
| */ |
| public static String getStandaloneMonthString(int month, int abbrev) { |
| // Note that here we use sMonthsMedium for MEDIUM, SHORT and SHORTER. |
| // This is a shortcut to not spam the translators with too many variations |
| // of the same string. If we find that in a language the distinction |
| // is necessary, we can can add more without changing this API. |
| int[] list; |
| switch (abbrev) { |
| case LENGTH_LONG: list = sMonthsStandaloneLong; |
| break; |
| case LENGTH_MEDIUM: list = sMonthsMedium; break; |
| case LENGTH_SHORT: list = sMonthsMedium; break; |
| case LENGTH_SHORTER: list = sMonthsMedium; break; |
| case LENGTH_SHORTEST: list = sMonthsShortest; break; |
| default: list = sMonthsMedium; break; |
| } |
| |
| Resources r = Resources.getSystem(); |
| return r.getString(list[month - Calendar.JANUARY]); |
| } |
| |
| /** |
| * Returns a string describing the elapsed time since startTime. |
| * @param startTime some time in the past. |
| * @return a String object containing the elapsed time. |
| * @see #getRelativeTimeSpanString(long, long, long) |
| */ |
| public static CharSequence getRelativeTimeSpanString(long startTime) { |
| return getRelativeTimeSpanString(startTime, System.currentTimeMillis(), MINUTE_IN_MILLIS); |
| } |
| |
| /** |
| * Returns a string describing 'time' as a time relative to 'now'. |
| * <p> |
| * Time spans in the past are formatted like "42 minutes ago". |
| * Time spans in the future are formatted like "in 42 minutes". |
| * |
| * @param time the time to describe, in milliseconds |
| * @param now the current time in milliseconds |
| * @param minResolution the minimum timespan to report. For example, a time 3 seconds in the |
| * past will be reported as "0 minutes ago" if this is set to MINUTE_IN_MILLIS. Pass one of |
| * 0, MINUTE_IN_MILLIS, HOUR_IN_MILLIS, DAY_IN_MILLIS, WEEK_IN_MILLIS |
| */ |
| public static CharSequence getRelativeTimeSpanString(long time, long now, long minResolution) { |
| int flags = FORMAT_SHOW_DATE | FORMAT_SHOW_YEAR | FORMAT_ABBREV_MONTH; |
| return getRelativeTimeSpanString(time, now, minResolution, flags); |
| } |
| |
| /** |
| * Returns a string describing 'time' as a time relative to 'now'. |
| * <p> |
| * Time spans in the past are formatted like "42 minutes ago". Time spans in |
| * the future are formatted like "in 42 minutes". |
| * <p> |
| * Can use {@link #FORMAT_ABBREV_RELATIVE} flag to use abbreviated relative |
| * times, like "42 mins ago". |
| * |
| * @param time the time to describe, in milliseconds |
| * @param now the current time in milliseconds |
| * @param minResolution the minimum timespan to report. For example, a time |
| * 3 seconds in the past will be reported as "0 minutes ago" if |
| * this is set to MINUTE_IN_MILLIS. Pass one of 0, |
| * MINUTE_IN_MILLIS, HOUR_IN_MILLIS, DAY_IN_MILLIS, |
| * WEEK_IN_MILLIS |
| * @param flags a bit mask of formatting options, such as |
| * {@link #FORMAT_NUMERIC_DATE} or |
| * {@link #FORMAT_ABBREV_RELATIVE} |
| */ |
| public static CharSequence getRelativeTimeSpanString(long time, long now, long minResolution, |
| int flags) { |
| Resources r = Resources.getSystem(); |
| boolean abbrevRelative = (flags & (FORMAT_ABBREV_RELATIVE | FORMAT_ABBREV_ALL)) != 0; |
| |
| boolean past = (now >= time); |
| long duration = Math.abs(now - time); |
| |
| int resId; |
| long count; |
| if (duration < MINUTE_IN_MILLIS && minResolution < MINUTE_IN_MILLIS) { |
| count = duration / SECOND_IN_MILLIS; |
| if (past) { |
| if (abbrevRelative) { |
| resId = com.android.internal.R.plurals.abbrev_num_seconds_ago; |
| } else { |
| resId = com.android.internal.R.plurals.num_seconds_ago; |
| } |
| } else { |
| if (abbrevRelative) { |
| resId = com.android.internal.R.plurals.abbrev_in_num_seconds; |
| } else { |
| resId = com.android.internal.R.plurals.in_num_seconds; |
| } |
| } |
| } else if (duration < HOUR_IN_MILLIS && minResolution < HOUR_IN_MILLIS) { |
| count = duration / MINUTE_IN_MILLIS; |
| if (past) { |
| if (abbrevRelative) { |
| resId = com.android.internal.R.plurals.abbrev_num_minutes_ago; |
| } else { |
| resId = com.android.internal.R.plurals.num_minutes_ago; |
| } |
| } else { |
| if (abbrevRelative) { |
| resId = com.android.internal.R.plurals.abbrev_in_num_minutes; |
| } else { |
| resId = com.android.internal.R.plurals.in_num_minutes; |
| } |
| } |
| } else if (duration < DAY_IN_MILLIS && minResolution < DAY_IN_MILLIS) { |
| count = duration / HOUR_IN_MILLIS; |
| if (past) { |
| if (abbrevRelative) { |
| resId = com.android.internal.R.plurals.abbrev_num_hours_ago; |
| } else { |
| resId = com.android.internal.R.plurals.num_hours_ago; |
| } |
| } else { |
| if (abbrevRelative) { |
| resId = com.android.internal.R.plurals.abbrev_in_num_hours; |
| } else { |
| resId = com.android.internal.R.plurals.in_num_hours; |
| } |
| } |
| } else if (duration < WEEK_IN_MILLIS && minResolution < WEEK_IN_MILLIS) { |
| count = getNumberOfDaysPassed(time, now); |
| if (past) { |
| if (abbrevRelative) { |
| resId = com.android.internal.R.plurals.abbrev_num_days_ago; |
| } else { |
| resId = com.android.internal.R.plurals.num_days_ago; |
| } |
| } else { |
| if (abbrevRelative) { |
| resId = com.android.internal.R.plurals.abbrev_in_num_days; |
| } else { |
| resId = com.android.internal.R.plurals.in_num_days; |
| } |
| } |
| } else { |
| // We know that we won't be showing the time, so it is safe to pass |
| // in a null context. |
| return formatDateRange(null, time, time, flags); |
| } |
| |
| String format = r.getQuantityString(resId, (int) count); |
| return String.format(format, count); |
| } |
| |
| /** |
| * Returns the number of days passed between two dates. |
| * |
| * @param date1 first date |
| * @param date2 second date |
| * @return number of days passed between to dates. |
| */ |
| private synchronized static long getNumberOfDaysPassed(long date1, long date2) { |
| if (sThenTime == null) { |
| sThenTime = new Time(); |
| } |
| sThenTime.set(date1); |
| int day1 = Time.getJulianDay(date1, sThenTime.gmtoff); |
| sThenTime.set(date2); |
| int day2 = Time.getJulianDay(date2, sThenTime.gmtoff); |
| return Math.abs(day2 - day1); |
| } |
| |
| /** |
| * Return string describing the elapsed time since startTime formatted like |
| * "[relative time/date], [time]". |
| * <p> |
| * Example output strings for the US date format. |
| * <ul> |
| * <li>3 mins ago, 10:15 AM</li> |
| * <li>yesterday, 12:20 PM</li> |
| * <li>Dec 12, 4:12 AM</li> |
| * <li>11/14/2007, 8:20 AM</li> |
| * </ul> |
| * |
| * @param time some time in the past. |
| * @param minResolution the minimum elapsed time (in milliseconds) to report |
| * when showing relative times. For example, a time 3 seconds in |
| * the past will be reported as "0 minutes ago" if this is set to |
| * {@link #MINUTE_IN_MILLIS}. |
| * @param transitionResolution the elapsed time (in milliseconds) at which |
| * to stop reporting relative measurements. Elapsed times greater |
| * than this resolution will default to normal date formatting. |
| * For example, will transition from "6 days ago" to "Dec 12" |
| * when using {@link #WEEK_IN_MILLIS}. |
| */ |
| public static CharSequence getRelativeDateTimeString(Context c, long time, long minResolution, |
| long transitionResolution, int flags) { |
| Resources r = Resources.getSystem(); |
| |
| long now = System.currentTimeMillis(); |
| long duration = Math.abs(now - time); |
| |
| // getRelativeTimeSpanString() doesn't correctly format relative dates |
| // above a week or exact dates below a day, so clamp |
| // transitionResolution as needed. |
| if (transitionResolution > WEEK_IN_MILLIS) { |
| transitionResolution = WEEK_IN_MILLIS; |
| } else if (transitionResolution < DAY_IN_MILLIS) { |
| transitionResolution = DAY_IN_MILLIS; |
| } |
| |
| CharSequence timeClause = formatDateRange(c, time, time, FORMAT_SHOW_TIME); |
| |
| String result; |
| if (duration < transitionResolution) { |
| CharSequence relativeClause = getRelativeTimeSpanString(time, now, minResolution, flags); |
| result = r.getString(com.android.internal.R.string.relative_time, relativeClause, timeClause); |
| } else { |
| CharSequence dateClause = getRelativeTimeSpanString(c, time, false); |
| result = r.getString(com.android.internal.R.string.date_time, dateClause, timeClause); |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Returns a string describing a day relative to the current day. For example if the day is |
| * today this function returns "Today", if the day was a week ago it returns "7 days ago", and |
| * if the day is in 2 weeks it returns "in 14 days". |
| * |
| * @param r the resources to get the strings from |
| * @param day the relative day to describe in UTC milliseconds |
| * @param today the current time in UTC milliseconds |
| * @return a formatting string |
| */ |
| private static final String getRelativeDayString(Resources r, long day, long today) { |
| Time startTime = new Time(); |
| startTime.set(day); |
| Time currentTime = new Time(); |
| currentTime.set(today); |
| |
| int startDay = Time.getJulianDay(day, startTime.gmtoff); |
| int currentDay = Time.getJulianDay(today, currentTime.gmtoff); |
| |
| int days = Math.abs(currentDay - startDay); |
| boolean past = (today > day); |
| |
| if (days == 1) { |
| if (past) { |
| return r.getString(com.android.internal.R.string.yesterday); |
| } else { |
| return r.getString(com.android.internal.R.string.tomorrow); |
| } |
| } else if (days == 0) { |
| return r.getString(com.android.internal.R.string.today); |
| } |
| |
| int resId; |
| if (past) { |
| resId = com.android.internal.R.plurals.num_days_ago; |
| } else { |
| resId = com.android.internal.R.plurals.in_num_days; |
| } |
| |
| String format = r.getQuantityString(resId, days); |
| return String.format(format, days); |
| } |
| |
| private static void initFormatStrings() { |
| synchronized (sLock) { |
| initFormatStringsLocked(); |
| } |
| } |
| |
| private static void initFormatStringsLocked() { |
| Resources r = Resources.getSystem(); |
| Configuration cfg = r.getConfiguration(); |
| if (sLastConfig == null || !sLastConfig.equals(cfg)) { |
| sLastConfig = cfg; |
| sStatusTimeFormat = java.text.DateFormat.getTimeInstance(java.text.DateFormat.SHORT); |
| sElapsedFormatMMSS = r.getString(com.android.internal.R.string.elapsed_time_short_format_mm_ss); |
| sElapsedFormatHMMSS = r.getString(com.android.internal.R.string.elapsed_time_short_format_h_mm_ss); |
| } |
| } |
| |
| /** |
| * Format a time so it appears like it would in the status bar clock. |
| * @deprecated use {@link #DateFormat.getTimeFormat(Context)} instead. |
| * @hide |
| */ |
| public static final CharSequence timeString(long millis) { |
| synchronized (sLock) { |
| initFormatStringsLocked(); |
| return sStatusTimeFormat.format(millis); |
| } |
| } |
| |
| /** |
| * Formats an elapsed time in the form "MM:SS" or "H:MM:SS" |
| * for display on the call-in-progress screen. |
| * @param elapsedSeconds the elapsed time in seconds. |
| */ |
| public static String formatElapsedTime(long elapsedSeconds) { |
| return formatElapsedTime(null, elapsedSeconds); |
| } |
| |
| /** |
| * Formats an elapsed time in the form "MM:SS" or "H:MM:SS" |
| * for display on the call-in-progress screen. |
| * |
| * @param recycle {@link StringBuilder} to recycle, if possible |
| * @param elapsedSeconds the elapsed time in seconds. |
| */ |
| public static String formatElapsedTime(StringBuilder recycle, long elapsedSeconds) { |
| initFormatStrings(); |
| |
| long hours = 0; |
| long minutes = 0; |
| long seconds = 0; |
| |
| if (elapsedSeconds >= 3600) { |
| hours = elapsedSeconds / 3600; |
| elapsedSeconds -= hours * 3600; |
| } |
| if (elapsedSeconds >= 60) { |
| minutes = elapsedSeconds / 60; |
| elapsedSeconds -= minutes * 60; |
| } |
| seconds = elapsedSeconds; |
| |
| String result; |
| if (hours > 0) { |
| return formatElapsedTime(recycle, sElapsedFormatHMMSS, hours, minutes, seconds); |
| } else { |
| return formatElapsedTime(recycle, sElapsedFormatMMSS, minutes, seconds); |
| } |
| } |
| |
| /** |
| * Fast formatting of h:mm:ss |
| */ |
| private static String formatElapsedTime(StringBuilder recycle, String format, long hours, |
| long minutes, long seconds) { |
| if (FAST_FORMAT_HMMSS.equals(format)) { |
| StringBuilder sb = recycle; |
| if (sb == null) { |
| sb = new StringBuilder(8); |
| } else { |
| sb.setLength(0); |
| } |
| sb.append(hours); |
| sb.append(TIME_SEPARATOR); |
| if (minutes < 10) { |
| sb.append(TIME_PADDING); |
| } else { |
| sb.append(toDigitChar(minutes / 10)); |
| } |
| sb.append(toDigitChar(minutes % 10)); |
| sb.append(TIME_SEPARATOR); |
| if (seconds < 10) { |
| sb.append(TIME_PADDING); |
| } else { |
| sb.append(toDigitChar(seconds / 10)); |
| } |
| sb.append(toDigitChar(seconds % 10)); |
| return sb.toString(); |
| } else { |
| return String.format(format, hours, minutes, seconds); |
| } |
| } |
| |
| /** |
| * Fast formatting of m:ss |
| */ |
| private static String formatElapsedTime(StringBuilder recycle, String format, long minutes, |
| long seconds) { |
| if (FAST_FORMAT_MMSS.equals(format)) { |
| StringBuilder sb = recycle; |
| if (sb == null) { |
| sb = new StringBuilder(8); |
| } else { |
| sb.setLength(0); |
| } |
| if (minutes < 10) { |
| sb.append(TIME_PADDING); |
| } else { |
| sb.append(toDigitChar(minutes / 10)); |
| } |
| sb.append(toDigitChar(minutes % 10)); |
| sb.append(TIME_SEPARATOR); |
| if (seconds < 10) { |
| sb.append(TIME_PADDING); |
| } else { |
| sb.append(toDigitChar(seconds / 10)); |
| } |
| sb.append(toDigitChar(seconds % 10)); |
| return sb.toString(); |
| } else { |
| return String.format(format, minutes, seconds); |
| } |
| } |
| |
| private static char toDigitChar(long digit) { |
| return (char) (digit + '0'); |
| } |
| |
| /** |
| * Format a date / time such that if the then is on the same day as now, it shows |
| * just the time and if it's a different day, it shows just the date. |
| * |
| * <p>The parameters dateFormat and timeFormat should each be one of |
| * {@link java.text.DateFormat#DEFAULT}, |
| * {@link java.text.DateFormat#FULL}, |
| * {@link java.text.DateFormat#LONG}, |
| * {@link java.text.DateFormat#MEDIUM} |
| * or |
| * {@link java.text.DateFormat#SHORT} |
| * |
| * @param then the date to format |
| * @param now the base time |
| * @param dateStyle how to format the date portion. |
| * @param timeStyle how to format the time portion. |
| */ |
| public static final CharSequence formatSameDayTime(long then, long now, |
| int dateStyle, int timeStyle) { |
| Calendar thenCal = new GregorianCalendar(); |
| thenCal.setTimeInMillis(then); |
| Date thenDate = thenCal.getTime(); |
| Calendar nowCal = new GregorianCalendar(); |
| nowCal.setTimeInMillis(now); |
| |
| java.text.DateFormat f; |
| |
| if (thenCal.get(Calendar.YEAR) == nowCal.get(Calendar.YEAR) |
| && thenCal.get(Calendar.MONTH) == nowCal.get(Calendar.MONTH) |
| && thenCal.get(Calendar.DAY_OF_MONTH) == nowCal.get(Calendar.DAY_OF_MONTH)) { |
| f = java.text.DateFormat.getTimeInstance(timeStyle); |
| } else { |
| f = java.text.DateFormat.getDateInstance(dateStyle); |
| } |
| return f.format(thenDate); |
| } |
| |
| /** |
| * @hide |
| * @deprecated use {@link android.text.format.Time} |
| */ |
| public static Calendar newCalendar(boolean zulu) |
| { |
| if (zulu) |
| return Calendar.getInstance(TimeZone.getTimeZone("GMT")); |
| |
| return Calendar.getInstance(); |
| } |
| |
| /** |
| * @return true if the supplied when is today else false |
| */ |
| public static boolean isToday(long when) { |
| Time time = new Time(); |
| time.set(when); |
| |
| int thenYear = time.year; |
| int thenMonth = time.month; |
| int thenMonthDay = time.monthDay; |
| |
| time.set(System.currentTimeMillis()); |
| return (thenYear == time.year) |
| && (thenMonth == time.month) |
| && (thenMonthDay == time.monthDay); |
| } |
| |
| /** |
| * @hide |
| * @deprecated use {@link android.text.format.Time} |
| * Return true if this date string is local time |
| */ |
| public static boolean isUTC(String s) |
| { |
| if (s.length() == 16 && s.charAt(15) == 'Z') { |
| return true; |
| } |
| if (s.length() == 9 && s.charAt(8) == 'Z') { |
| // XXX not sure if this case possible/valid |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Return a string containing the date and time in RFC2445 format. |
| * Ensures that the time is written in UTC. The Calendar class doesn't |
| * really help out with this, so this is slower than it ought to be. |
| * |
| * @param cal the date and time to write |
| * @hide |
| * @deprecated use {@link android.text.format.Time} |
| */ |
| public static String writeDateTime(Calendar cal) |
| { |
| TimeZone tz = TimeZone.getTimeZone("GMT"); |
| GregorianCalendar c = new GregorianCalendar(tz); |
| c.setTimeInMillis(cal.getTimeInMillis()); |
| return writeDateTime(c, true); |
| } |
| |
| /** |
| * Return a string containing the date and time in RFC2445 format. |
| * |
| * @param cal the date and time to write |
| * @param zulu If the calendar is in UTC, pass true, and a Z will |
| * be written at the end as per RFC2445. Otherwise, the time is |
| * considered in localtime. |
| * @hide |
| * @deprecated use {@link android.text.format.Time} |
| */ |
| public static String writeDateTime(Calendar cal, boolean zulu) |
| { |
| StringBuilder sb = new StringBuilder(); |
| sb.ensureCapacity(16); |
| if (zulu) { |
| sb.setLength(16); |
| sb.setCharAt(15, 'Z'); |
| } else { |
| sb.setLength(15); |
| } |
| return writeDateTime(cal, sb); |
| } |
| |
| /** |
| * Return a string containing the date and time in RFC2445 format. |
| * |
| * @param cal the date and time to write |
| * @param sb a StringBuilder to use. It is assumed that setLength |
| * has already been called on sb to the appropriate length |
| * which is sb.setLength(zulu ? 16 : 15) |
| * @hide |
| * @deprecated use {@link android.text.format.Time} |
| */ |
| public static String writeDateTime(Calendar cal, StringBuilder sb) |
| { |
| int n; |
| |
| n = cal.get(Calendar.YEAR); |
| sb.setCharAt(3, (char)('0'+n%10)); |
| n /= 10; |
| sb.setCharAt(2, (char)('0'+n%10)); |
| n /= 10; |
| sb.setCharAt(1, (char)('0'+n%10)); |
| n /= 10; |
| sb.setCharAt(0, (char)('0'+n%10)); |
| |
| n = cal.get(Calendar.MONTH) + 1; |
| sb.setCharAt(5, (char)('0'+n%10)); |
| n /= 10; |
| sb.setCharAt(4, (char)('0'+n%10)); |
| |
| n = cal.get(Calendar.DAY_OF_MONTH); |
| sb.setCharAt(7, (char)('0'+n%10)); |
| n /= 10; |
| sb.setCharAt(6, (char)('0'+n%10)); |
| |
| sb.setCharAt(8, 'T'); |
| |
| n = cal.get(Calendar.HOUR_OF_DAY); |
| sb.setCharAt(10, (char)('0'+n%10)); |
| n /= 10; |
| sb.setCharAt(9, (char)('0'+n%10)); |
| |
| n = cal.get(Calendar.MINUTE); |
| sb.setCharAt(12, (char)('0'+n%10)); |
| n /= 10; |
| sb.setCharAt(11, (char)('0'+n%10)); |
| |
| n = cal.get(Calendar.SECOND); |
| sb.setCharAt(14, (char)('0'+n%10)); |
| n /= 10; |
| sb.setCharAt(13, (char)('0'+n%10)); |
| |
| return sb.toString(); |
| } |
| |
| /** |
| * @hide |
| * @deprecated use {@link android.text.format.Time} |
| */ |
| public static void assign(Calendar lval, Calendar rval) |
| { |
| // there should be a faster way. |
| lval.clear(); |
| lval.setTimeInMillis(rval.getTimeInMillis()); |
| } |
| |
| /** |
| * Formats a date or a time range according to the local conventions. |
| * <p> |
| * Note that this is a convenience method. Using it involves creating an |
| * internal {@link java.util.Formatter} instance on-the-fly, which is |
| * somewhat costly in terms of memory and time. This is probably acceptable |
| * if you use the method only rarely, but if you rely on it for formatting a |
| * large number of dates, consider creating and reusing your own |
| * {@link java.util.Formatter} instance and use the version of |
| * {@link #formatDateRange(Context, long, long, int) formatDateRange} |
| * that takes a {@link java.util.Formatter}. |
| * |
| * @param context the context is required only if the time is shown |
| * @param startMillis the start time in UTC milliseconds |
| * @param endMillis the end time in UTC milliseconds |
| * @param flags a bit mask of options See |
| * {@link #formatDateRange(Context, Formatter, long, long, int, String) formatDateRange} |
| * @return a string containing the formatted date/time range. |
| */ |
| public static String formatDateRange(Context context, long startMillis, |
| long endMillis, int flags) { |
| Formatter f = new Formatter(new StringBuilder(50), Locale.getDefault()); |
| return formatDateRange(context, f, startMillis, endMillis, flags).toString(); |
| } |
| |
| /** |
| * Formats a date or a time range according to the local conventions. |
| * <p> |
| * Note that this is a convenience method for formatting the date or |
| * time range in the local time zone. If you want to specify the time |
| * zone please use |
| * {@link #formatDateRange(Context, Formatter, long, long, int, String) formatDateRange}. |
| * |
| * @param context the context is required only if the time is shown |
| * @param formatter the Formatter used for formatting the date range. |
| * Note: be sure to call setLength(0) on StringBuilder passed to |
| * the Formatter constructor unless you want the results to accumulate. |
| * @param startMillis the start time in UTC milliseconds |
| * @param endMillis the end time in UTC milliseconds |
| * @param flags a bit mask of options See |
| * {@link #formatDateRange(Context, Formatter, long, long, int, String) formatDateRange} |
| * @return a string containing the formatted date/time range. |
| */ |
| public static Formatter formatDateRange(Context context, Formatter formatter, long startMillis, |
| long endMillis, int flags) { |
| return formatDateRange(context, formatter, startMillis, endMillis, flags, null); |
| } |
| |
| /** |
| * Formats a date or a time range according to the local conventions. |
| * |
| * <p> |
| * Example output strings (date formats in these examples are shown using |
| * the US date format convention but that may change depending on the |
| * local settings): |
| * <ul> |
| * <li>10:15am</li> |
| * <li>3:00pm - 4:00pm</li> |
| * <li>3pm - 4pm</li> |
| * <li>3PM - 4PM</li> |
| * <li>08:00 - 17:00</li> |
| * <li>Oct 9</li> |
| * <li>Tue, Oct 9</li> |
| * <li>October 9, 2007</li> |
| * <li>Oct 9 - 10</li> |
| * <li>Oct 9 - 10, 2007</li> |
| * <li>Oct 28 - Nov 3, 2007</li> |
| * <li>Dec 31, 2007 - Jan 1, 2008</li> |
| * <li>Oct 9, 8:00am - Oct 10, 5:00pm</li> |
| * <li>12/31/2007 - 01/01/2008</li> |
| * </ul> |
| * |
| * <p> |
| * The flags argument is a bitmask of options from the following list: |
| * |
| * <ul> |
| * <li>FORMAT_SHOW_TIME</li> |
| * <li>FORMAT_SHOW_WEEKDAY</li> |
| * <li>FORMAT_SHOW_YEAR</li> |
| * <li>FORMAT_NO_YEAR</li> |
| * <li>FORMAT_SHOW_DATE</li> |
| * <li>FORMAT_NO_MONTH_DAY</li> |
| * <li>FORMAT_12HOUR</li> |
| * <li>FORMAT_24HOUR</li> |
| * <li>FORMAT_CAP_AMPM</li> |
| * <li>FORMAT_NO_NOON</li> |
| * <li>FORMAT_CAP_NOON</li> |
| * <li>FORMAT_NO_MIDNIGHT</li> |
| * <li>FORMAT_CAP_MIDNIGHT</li> |
| * <li>FORMAT_UTC</li> |
| * <li>FORMAT_ABBREV_TIME</li> |
| * <li>FORMAT_ABBREV_WEEKDAY</li> |
| * <li>FORMAT_ABBREV_MONTH</li> |
| * <li>FORMAT_ABBREV_ALL</li> |
| * <li>FORMAT_NUMERIC_DATE</li> |
| * </ul> |
| * |
| * <p> |
| * If FORMAT_SHOW_TIME is set, the time is shown as part of the date range. |
| * If the start and end time are the same, then just the start time is |
| * shown. |
| * |
| * <p> |
| * If FORMAT_SHOW_WEEKDAY is set, then the weekday is shown. |
| * |
| * <p> |
| * If FORMAT_SHOW_YEAR is set, then the year is always shown. |
| * If FORMAT_NO_YEAR is set, then the year is not shown. |
| * If neither FORMAT_SHOW_YEAR nor FORMAT_NO_YEAR are set, then the year |
| * is shown only if it is different from the current year, or if the start |
| * and end dates fall on different years. If both are set, |
| * FORMAT_SHOW_YEAR takes precedence. |
| * |
| * <p> |
| * Normally the date is shown unless the start and end day are the same. |
| * If FORMAT_SHOW_DATE is set, then the date is always shown, even for |
| * same day ranges. |
| * |
| * <p> |
| * If FORMAT_NO_MONTH_DAY is set, then if the date is shown, just the |
| * month name will be shown, not the day of the month. For example, |
| * "January, 2008" instead of "January 6 - 12, 2008". |
| * |
| * <p> |
| * If FORMAT_CAP_AMPM is set and 12-hour time is used, then the "AM" |
| * and "PM" are capitalized. You should not use this flag |
| * because in some locales these terms cannot be capitalized, and in |
| * many others it doesn't make sense to do so even though it is possible. |
| * |
| * <p> |
| * If FORMAT_NO_NOON is set and 12-hour time is used, then "12pm" is |
| * shown instead of "noon". |
| * |
| * <p> |
| * If FORMAT_CAP_NOON is set and 12-hour time is used, then "Noon" is |
| * shown instead of "noon". You should probably not use this flag |
| * because in many locales it will not make sense to capitalize |
| * the term. |
| * |
| * <p> |
| * If FORMAT_NO_MIDNIGHT is set and 12-hour time is used, then "12am" is |
| * shown instead of "midnight". |
| * |
| * <p> |
| * If FORMAT_CAP_MIDNIGHT is set and 12-hour time is used, then "Midnight" |
| * is shown instead of "midnight". You should probably not use this |
| * flag because in many locales it will not make sense to capitalize |
| * the term. |
| * |
| * <p> |
| * If FORMAT_12HOUR is set and the time is shown, then the time is |
| * shown in the 12-hour time format. You should not normally set this. |
| * Instead, let the time format be chosen automatically according to the |
| * system settings. If both FORMAT_12HOUR and FORMAT_24HOUR are set, then |
| * FORMAT_24HOUR takes precedence. |
| * |
| * <p> |
| * If FORMAT_24HOUR is set and the time is shown, then the time is |
| * shown in the 24-hour time format. You should not normally set this. |
| * Instead, let the time format be chosen automatically according to the |
| * system settings. If both FORMAT_12HOUR and FORMAT_24HOUR are set, then |
| * FORMAT_24HOUR takes precedence. |
| * |
| * <p> |
| * If FORMAT_UTC is set, then the UTC time zone is used for the start |
| * and end milliseconds unless a time zone is specified. If a time zone |
| * is specified it will be used regardless of the FORMAT_UTC flag. |
| * |
| * <p> |
| * If FORMAT_ABBREV_TIME is set and 12-hour time format is used, then the |
| * start and end times (if shown) are abbreviated by not showing the minutes |
| * if they are zero. For example, instead of "3:00pm" the time would be |
| * abbreviated to "3pm". |
| * |
| * <p> |
| * If FORMAT_ABBREV_WEEKDAY is set, then the weekday (if shown) is |
| * abbreviated to a 3-letter string. |
| * |
| * <p> |
| * If FORMAT_ABBREV_MONTH is set, then the month (if shown) is abbreviated |
| * to a 3-letter string. |
| * |
| * <p> |
| * If FORMAT_ABBREV_ALL is set, then the weekday and the month (if shown) |
| * are abbreviated to 3-letter strings. |
| * |
| * <p> |
| * If FORMAT_NUMERIC_DATE is set, then the date is shown in numeric format |
| * instead of using the name of the month. For example, "12/31/2008" |
| * instead of "December 31, 2008". |
| * |
| * <p> |
| * If the end date ends at 12:00am at the beginning of a day, it is |
| * formatted as the end of the previous day in two scenarios: |
| * <ul> |
| * <li>For single day events. This results in "8pm - midnight" instead of |
| * "Nov 10, 8pm - Nov 11, 12am".</li> |
| * <li>When the time is not displayed. This results in "Nov 10 - 11" for |
| * an event with a start date of Nov 10 and an end date of Nov 12 at |
| * 00:00.</li> |
| * </ul> |
| * |
| * @param context the context is required only if the time is shown |
| * @param formatter the Formatter used for formatting the date range. |
| * Note: be sure to call setLength(0) on StringBuilder passed to |
| * the Formatter constructor unless you want the results to accumulate. |
| * @param startMillis the start time in UTC milliseconds |
| * @param endMillis the end time in UTC milliseconds |
| * @param flags a bit mask of options |
| * @param timeZone the time zone to compute the string in. Use null for local |
| * or if the FORMAT_UTC flag is being used. |
| * |
| * @return the formatter with the formatted date/time range appended to the string buffer. |
| */ |
| public static Formatter formatDateRange(Context context, Formatter formatter, long startMillis, |
| long endMillis, int flags, String timeZone) { |
| Resources res = Resources.getSystem(); |
| boolean showTime = (flags & FORMAT_SHOW_TIME) != 0; |
| boolean showWeekDay = (flags & FORMAT_SHOW_WEEKDAY) != 0; |
| boolean showYear = (flags & FORMAT_SHOW_YEAR) != 0; |
| boolean noYear = (flags & FORMAT_NO_YEAR) != 0; |
| boolean useUTC = (flags & FORMAT_UTC) != 0; |
| boolean abbrevWeekDay = (flags & (FORMAT_ABBREV_WEEKDAY | FORMAT_ABBREV_ALL)) != 0; |
| boolean abbrevMonth = (flags & (FORMAT_ABBREV_MONTH | FORMAT_ABBREV_ALL)) != 0; |
| boolean noMonthDay = (flags & FORMAT_NO_MONTH_DAY) != 0; |
| boolean numericDate = (flags & FORMAT_NUMERIC_DATE) != 0; |
| |
| // If we're getting called with a single instant in time (from |
| // e.g. formatDateTime(), below), then we can skip a lot of |
| // computation below that'd otherwise be thrown out. |
| boolean isInstant = (startMillis == endMillis); |
| |
| Time startDate; |
| if (timeZone != null) { |
| startDate = new Time(timeZone); |
| } else if (useUTC) { |
| startDate = new Time(Time.TIMEZONE_UTC); |
| } else { |
| startDate = new Time(); |
| } |
| startDate.set(startMillis); |
| |
| Time endDate; |
| int dayDistance; |
| if (isInstant) { |
| endDate = startDate; |
| dayDistance = 0; |
| } else { |
| if (timeZone != null) { |
| endDate = new Time(timeZone); |
| } else if (useUTC) { |
| endDate = new Time(Time.TIMEZONE_UTC); |
| } else { |
| endDate = new Time(); |
| } |
| endDate.set(endMillis); |
| int startJulianDay = Time.getJulianDay(startMillis, startDate.gmtoff); |
| int endJulianDay = Time.getJulianDay(endMillis, endDate.gmtoff); |
| dayDistance = endJulianDay - startJulianDay; |
| } |
| |
| if (!isInstant |
| && (endDate.hour | endDate.minute | endDate.second) == 0 |
| && (!showTime || dayDistance <= 1)) { |
| endDate.monthDay -= 1; |
| endDate.normalize(true /* ignore isDst */); |
| } |
| |
| int startDay = startDate.monthDay; |
| int startMonthNum = startDate.month; |
| int startYear = startDate.year; |
| |
| int endDay = endDate.monthDay; |
| int endMonthNum = endDate.month; |
| int endYear = endDate.year; |
| |
| String startWeekDayString = ""; |
| String endWeekDayString = ""; |
| if (showWeekDay) { |
| String weekDayFormat = ""; |
| if (abbrevWeekDay) { |
| weekDayFormat = ABBREV_WEEKDAY_FORMAT; |
| } else { |
| weekDayFormat = WEEKDAY_FORMAT; |
| } |
| startWeekDayString = startDate.format(weekDayFormat); |
| endWeekDayString = isInstant ? startWeekDayString : endDate.format(weekDayFormat); |
| } |
| |
| String startTimeString = ""; |
| String endTimeString = ""; |
| if (showTime) { |
| String startTimeFormat = ""; |
| String endTimeFormat = ""; |
| boolean force24Hour = (flags & FORMAT_24HOUR) != 0; |
| boolean force12Hour = (flags & FORMAT_12HOUR) != 0; |
| boolean use24Hour; |
| if (force24Hour) { |
| use24Hour = true; |
| } else if (force12Hour) { |
| use24Hour = false; |
| } else { |
| use24Hour = DateFormat.is24HourFormat(context); |
| } |
| if (use24Hour) { |
| startTimeFormat = endTimeFormat = |
| res.getString(com.android.internal.R.string.hour_minute_24); |
| } else { |
| boolean abbrevTime = (flags & (FORMAT_ABBREV_TIME | FORMAT_ABBREV_ALL)) != 0; |
| boolean capAMPM = (flags & FORMAT_CAP_AMPM) != 0; |
| boolean noNoon = (flags & FORMAT_NO_NOON) != 0; |
| boolean capNoon = (flags & FORMAT_CAP_NOON) != 0; |
| boolean noMidnight = (flags & FORMAT_NO_MIDNIGHT) != 0; |
| boolean capMidnight = (flags & FORMAT_CAP_MIDNIGHT) != 0; |
| |
| boolean startOnTheHour = startDate.minute == 0 && startDate.second == 0; |
| boolean endOnTheHour = endDate.minute == 0 && endDate.second == 0; |
| if (abbrevTime && startOnTheHour) { |
| if (capAMPM) { |
| startTimeFormat = res.getString(com.android.internal.R.string.hour_cap_ampm); |
| } else { |
| startTimeFormat = res.getString(com.android.internal.R.string.hour_ampm); |
| } |
| } else { |
| if (capAMPM) { |
| startTimeFormat = res.getString(com.android.internal.R.string.hour_minute_cap_ampm); |
| } else { |
| startTimeFormat = res.getString(com.android.internal.R.string.hour_minute_ampm); |
| } |
| } |
| |
| // Don't waste time on setting endTimeFormat when |
| // we're dealing with an instant, where we'll never |
| // need the end point. (It's the same as the start |
| // point) |
| if (!isInstant) { |
| if (abbrevTime && endOnTheHour) { |
| if (capAMPM) { |
| endTimeFormat = res.getString(com.android.internal.R.string.hour_cap_ampm); |
| } else { |
| endTimeFormat = res.getString(com.android.internal.R.string.hour_ampm); |
| } |
| } else { |
| if (capAMPM) { |
| endTimeFormat = res.getString(com.android.internal.R.string.hour_minute_cap_ampm); |
| } else { |
| endTimeFormat = res.getString(com.android.internal.R.string.hour_minute_ampm); |
| } |
| } |
| |
| if (endDate.hour == 12 && endOnTheHour && !noNoon) { |
| if (capNoon) { |
| endTimeFormat = res.getString(com.android.internal.R.string.Noon); |
| } else { |
| endTimeFormat = res.getString(com.android.internal.R.string.noon); |
| } |
| } else if (endDate.hour == 0 && endOnTheHour && !noMidnight) { |
| if (capMidnight) { |
| endTimeFormat = res.getString(com.android.internal.R.string.Midnight); |
| } else { |
| endTimeFormat = res.getString(com.android.internal.R.string.midnight); |
| } |
| } |
| } |
| |
| if (startDate.hour == 12 && startOnTheHour && !noNoon) { |
| if (capNoon) { |
| startTimeFormat = res.getString(com.android.internal.R.string.Noon); |
| } else { |
| startTimeFormat = res.getString(com.android.internal.R.string.noon); |
| } |
| // Don't show the start time starting at midnight. Show |
| // 12am instead. |
| } |
| } |
| |
| startTimeString = startDate.format(startTimeFormat); |
| endTimeString = isInstant ? startTimeString : endDate.format(endTimeFormat); |
| } |
| |
| // Show the year if the user specified FORMAT_SHOW_YEAR or if |
| // the starting and end years are different from each other |
| // or from the current year. But don't show the year if the |
| // user specified FORMAT_NO_YEAR. |
| if (showYear) { |
| // No code... just a comment for clarity. Keep showYear |
| // on, as they enabled it with FORMAT_SHOW_YEAR. This |
| // takes precedence over them setting FORMAT_NO_YEAR. |
| } else if (noYear) { |
| // They explicitly didn't want a year. |
| showYear = false; |
| } else if (startYear != endYear) { |
| showYear = true; |
| } else { |
| // Show the year if it's not equal to the current year. |
| Time currentTime = new Time(); |
| currentTime.setToNow(); |
| showYear = startYear != currentTime.year; |
| } |
| |
| String defaultDateFormat, fullFormat, dateRange; |
| if (numericDate) { |
| defaultDateFormat = res.getString(com.android.internal.R.string.numeric_date); |
| } else if (showYear) { |
| if (abbrevMonth) { |
| if (noMonthDay) { |
| defaultDateFormat = res.getString(com.android.internal.R.string.abbrev_month_year); |
| } else { |
| defaultDateFormat = res.getString(com.android.internal.R.string.abbrev_month_day_year); |
| } |
| } else { |
| if (noMonthDay) { |
| defaultDateFormat = res.getString(com.android.internal.R.string.month_year); |
| } else { |
| defaultDateFormat = res.getString(com.android.internal.R.string.month_day_year); |
| } |
| } |
| } else { |
| if (abbrevMonth) { |
| if (noMonthDay) { |
| defaultDateFormat = res.getString(com.android.internal.R.string.abbrev_month); |
| } else { |
| defaultDateFormat = res.getString(com.android.internal.R.string.abbrev_month_day); |
| } |
| } else { |
| if (noMonthDay) { |
| defaultDateFormat = res.getString(com.android.internal.R.string.month); |
| } else { |
| defaultDateFormat = res.getString(com.android.internal.R.string.month_day); |
| } |
| } |
| } |
| |
| if (showWeekDay) { |
| if (showTime) { |
| fullFormat = res.getString(com.android.internal.R.string.wday1_date1_time1_wday2_date2_time2); |
| } else { |
| fullFormat = res.getString(com.android.internal.R.string.wday1_date1_wday2_date2); |
| } |
| } else { |
| if (showTime) { |
| fullFormat = res.getString(com.android.internal.R.string.date1_time1_date2_time2); |
| } else { |
| fullFormat = res.getString(com.android.internal.R.string.date1_date2); |
| } |
| } |
| |
| if (noMonthDay && startMonthNum == endMonthNum && startYear == endYear) { |
| // Example: "January, 2008" |
| return formatter.format("%s", startDate.format(defaultDateFormat)); |
| } |
| |
| if (startYear != endYear || noMonthDay) { |
| // Different year or we are not showing the month day number. |
| // Example: "December 31, 2007 - January 1, 2008" |
| // Or: "January - February, 2008" |
| String startDateString = startDate.format(defaultDateFormat); |
| String endDateString = endDate.format(defaultDateFormat); |
| |
| // The values that are used in a fullFormat string are specified |
| // by position. |
| return formatter.format(fullFormat, |
| startWeekDayString, startDateString, startTimeString, |
| endWeekDayString, endDateString, endTimeString); |
| } |
| |
| // Get the month, day, and year strings for the start and end dates |
| String monthFormat; |
| if (numericDate) { |
| monthFormat = NUMERIC_MONTH_FORMAT; |
| } else if (abbrevMonth) { |
| monthFormat = |
| res.getString(com.android.internal.R.string.short_format_month); |
| } else { |
| monthFormat = MONTH_FORMAT; |
| } |
| String startMonthString = startDate.format(monthFormat); |
| String startMonthDayString = startDate.format(MONTH_DAY_FORMAT); |
| String startYearString = startDate.format(YEAR_FORMAT); |
| |
| String endMonthString = isInstant ? null : endDate.format(monthFormat); |
| String endMonthDayString = isInstant ? null : endDate.format(MONTH_DAY_FORMAT); |
| String endYearString = isInstant ? null : endDate.format(YEAR_FORMAT); |
| |
| if (startMonthNum != endMonthNum) { |
| // Same year, different month. |
| // Example: "October 28 - November 3" |
| // or: "Wed, Oct 31 - Sat, Nov 3, 2007" |
| // or: "Oct 31, 8am - Sat, Nov 3, 2007, 5pm" |
| |
| int index = 0; |
| if (showWeekDay) index = 1; |
| if (showYear) index += 2; |
| if (showTime) index += 4; |
| if (numericDate) index += 8; |
| int resId = sameYearTable[index]; |
| fullFormat = res.getString(resId); |
| |
| // The values that are used in a fullFormat string are specified |
| // by position. |
| return formatter.format(fullFormat, |
| startWeekDayString, startMonthString, startMonthDayString, |
| startYearString, startTimeString, |
| endWeekDayString, endMonthString, endMonthDayString, |
| endYearString, endTimeString); |
| } |
| |
| if (startDay != endDay) { |
| // Same month, different day. |
| int index = 0; |
| if (showWeekDay) index = 1; |
| if (showYear) index += 2; |
| if (showTime) index += 4; |
| if (numericDate) index += 8; |
| int resId = sameMonthTable[index]; |
| fullFormat = res.getString(resId); |
| |
| // The values that are used in a fullFormat string are specified |
| // by position. |
| return formatter.format(fullFormat, |
| startWeekDayString, startMonthString, startMonthDayString, |
| startYearString, startTimeString, |
| endWeekDayString, endMonthString, endMonthDayString, |
| endYearString, endTimeString); |
| } |
| |
| // Same start and end day |
| boolean showDate = (flags & FORMAT_SHOW_DATE) != 0; |
| |
| // If nothing was specified, then show the date. |
| if (!showTime && !showDate && !showWeekDay) showDate = true; |
| |
| // Compute the time string (example: "10:00 - 11:00 am") |
| String timeString = ""; |
| if (showTime) { |
| // If the start and end time are the same, then just show the |
| // start time. |
| if (isInstant) { |
| // Same start and end time. |
| // Example: "10:15 AM" |
| timeString = startTimeString; |
| } else { |
| // Example: "10:00 - 11:00 am" |
| String timeFormat = res.getString(com.android.internal.R.string.time1_time2); |
| // Don't use the user supplied Formatter because the result will pollute the buffer. |
| timeString = String.format(timeFormat, startTimeString, endTimeString); |
| } |
| } |
| |
| // Figure out which full format to use. |
| fullFormat = ""; |
| String dateString = ""; |
| if (showDate) { |
| dateString = startDate.format(defaultDateFormat); |
| if (showWeekDay) { |
| if (showTime) { |
| // Example: "10:00 - 11:00 am, Tue, Oct 9" |
| fullFormat = res.getString(com.android.internal.R.string.time_wday_date); |
| } else { |
| // Example: "Tue, Oct 9" |
| fullFormat = res.getString(com.android.internal.R.string.wday_date); |
| } |
| } else { |
| if (showTime) { |
| // Example: "10:00 - 11:00 am, Oct 9" |
| fullFormat = res.getString(com.android.internal.R.string.time_date); |
| } else { |
| // Example: "Oct 9" |
| return formatter.format("%s", dateString); |
| } |
| } |
| } else if (showWeekDay) { |
| if (showTime) { |
| // Example: "10:00 - 11:00 am, Tue" |
| fullFormat = res.getString(com.android.internal.R.string.time_wday); |
| } else { |
| // Example: "Tue" |
| return formatter.format("%s", startWeekDayString); |
| } |
| } else if (showTime) { |
| return formatter.format("%s", timeString); |
| } |
| |
| // The values that are used in a fullFormat string are specified |
| // by position. |
| return formatter.format(fullFormat, timeString, startWeekDayString, dateString); |
| } |
| |
| /** |
| * Formats a date or a time according to the local conventions. There are |
| * lots of options that allow the caller to control, for example, if the |
| * time is shown, if the day of the week is shown, if the month name is |
| * abbreviated, if noon is shown instead of 12pm, and so on. For the |
| * complete list of options, see the documentation for |
| * {@link #formatDateRange}. |
| * <p> |
| * Example output strings (date formats in these examples are shown using |
| * the US date format convention but that may change depending on the |
| * local settings): |
| * <ul> |
| * <li>10:15am</li> |
| * <li>3:00pm</li> |
| * <li>3pm</li> |
| * <li>3PM</li> |
| * <li>08:00</li> |
| * <li>17:00</li> |
| * <li>noon</li> |
| * <li>Noon</li> |
| * <li>midnight</li> |
| * <li>Midnight</li> |
| * <li>Oct 31</li> |
| * <li>Oct 31, 2007</li> |
| * <li>October 31, 2007</li> |
| * <li>10am, Oct 31</li> |
| * <li>17:00, Oct 31</li> |
| * <li>Wed</li> |
| * <li>Wednesday</li> |
| * <li>10am, Wed, Oct 31</li> |
| * <li>Wed, Oct 31</li> |
| * <li>Wednesday, Oct 31</li> |
| * <li>Wed, Oct 31, 2007</li> |
| * <li>Wed, October 31</li> |
| * <li>10/31/2007</li> |
| * </ul> |
| * |
| * @param context the context is required only if the time is shown |
| * @param millis a point in time in UTC milliseconds |
| * @param flags a bit mask of formatting options |
| * @return a string containing the formatted date/time. |
| */ |
| public static String formatDateTime(Context context, long millis, int flags) { |
| return formatDateRange(context, millis, millis, flags); |
| } |
| |
| /** |
| * @return a relative time string to display the time expressed by millis. Times |
| * are counted starting at midnight, which means that assuming that the current |
| * time is March 31st, 0:30: |
| * <ul> |
| * <li>"millis=0:10 today" will be displayed as "0:10"</li> |
| * <li>"millis=11:30pm the day before" will be displayed as "Mar 30"</li> |
| * </ul> |
| * If the given millis is in a different year, then the full date is |
| * returned in numeric format (e.g., "10/12/2008"). |
| * |
| * @param withPreposition If true, the string returned will include the correct |
| * preposition ("at 9:20am", "on 10/12/2008" or "on May 29"). |
| */ |
| public static CharSequence getRelativeTimeSpanString(Context c, long millis, |
| boolean withPreposition) { |
| |
| String result; |
| long now = System.currentTimeMillis(); |
| long span = now - millis; |
| |
| synchronized (DateUtils.class) { |
| if (sNowTime == null) { |
| sNowTime = new Time(); |
| } |
| |
| if (sThenTime == null) { |
| sThenTime = new Time(); |
| } |
| |
| sNowTime.set(now); |
| sThenTime.set(millis); |
| |
| int prepositionId; |
| if (span < DAY_IN_MILLIS && sNowTime.weekDay == sThenTime.weekDay) { |
| // Same day |
| int flags = FORMAT_SHOW_TIME; |
| result = formatDateRange(c, millis, millis, flags); |
| prepositionId = R.string.preposition_for_time; |
| } else if (sNowTime.year != sThenTime.year) { |
| // Different years |
| int flags = FORMAT_SHOW_DATE | FORMAT_SHOW_YEAR | FORMAT_NUMERIC_DATE; |
| result = formatDateRange(c, millis, millis, flags); |
| |
| // This is a date (like "10/31/2008" so use the date preposition) |
| prepositionId = R.string.preposition_for_date; |
| } else { |
| // Default |
| int flags = FORMAT_SHOW_DATE | FORMAT_ABBREV_MONTH; |
| result = formatDateRange(c, millis, millis, flags); |
| prepositionId = R.string.preposition_for_date; |
| } |
| if (withPreposition) { |
| Resources res = c.getResources(); |
| result = res.getString(prepositionId, result); |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * Convenience function to return relative time string without preposition. |
| * @param c context for resources |
| * @param millis time in milliseconds |
| * @return {@link CharSequence} containing relative time. |
| * @see #getRelativeTimeSpanString(Context, long, boolean) |
| */ |
| public static CharSequence getRelativeTimeSpanString(Context c, long millis) { |
| return getRelativeTimeSpanString(c, millis, false /* no preposition */); |
| } |
| |
| private static Time sNowTime; |
| private static Time sThenTime; |
| } |
