Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d0e07619 authored by Neil Fuller's avatar Neil Fuller
Browse files

Update the timestamp used for time zone filtering 

Update the timestamp used for time zone filtering and improve the
comment explaining what it is for.

Bug: 124756276
Test: build only
Change-Id: I2e53b1f3bd36602f8d08967e1335066d93ae05ea
parent 64bf0a79

src/com/android/settings/datetime/timezone/model/FilteredCountryTimeZones.java

+13 −3
Original line number Diff line number Diff line
@@ -27,9 +27,19 @@ import java.util.stream.Collectors; 
 */

public class FilteredCountryTimeZones {



    // New timezone list and the meta data of time zone, notUsedAfter, is introduced in Android P

    // in 2018. Only show time zone used in or after 2018.

    private static final long MIN_USE_DATE_OF_TIMEZONE = 1514764800000L; // 1/1/2018 00:00 UTC

    /**

     * The timestamp used to determine which time zones to show to users by using the notUsedAfter

     * metadata Android holds for each time zone.

     *

     * notUsedAfter exists because some time zones effectively "merge" with other time zones after

     * a given point in time (i.e. they have identical transitions, offsets, etc.). After that

     * point we only need to show one of the functionally identical ones.

     *

     * Rather than using System.currentTimeMillis(), UX folks asked for consistent behavior and so

     * a timestamp known to be in the recent past is used. This should be updated occasionally but

     * it doesn't have to be very often.

     */

    private static final long MIN_USE_DATE_OF_TIMEZONE = 1546300800000L; // 1/1/2019 00:00 UTC



    private final CountryTimeZones mCountryTimeZones;

    private final List<String> mTimeZoneIds;