Files
app_Settings/src/com/android/settings/datetime/timezone/model/TimeZoneData.java
Victor Chang fbd30acef0 Time zone, Region, UTC picker
- Extract most common view related codes into BaseTimeZoneAdapter
  and BaseTimeZonePicker. Subclass handles the text formatting and
  order.
- Search view is added compared to previous version of time
  zone picker
- SpannableUtil is added to preserve spannable when formatting
  String resource.
- Fix the bug using GMT+<arabic> as time zone id. b/73132985
- Fix Talkback treating flags on screens as a separate element

Bug: 72146259
Bug: 73132985
Bug: 73952488
Test: mm RunSettingsRoboTests
Change-Id: I42c6ac369199c09d11e7f5cc4707358fa4780fed
2018-03-05 21:53:56 +00:00

101 lines
3.6 KiB
Java

/*
* Copyright (C) 2018 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 com.android.settings.datetime.timezone.model;
import android.support.annotation.VisibleForTesting;
import libcore.util.CountryTimeZones;
import libcore.util.CountryZonesFinder;
import libcore.util.TimeZoneFinder;
import java.lang.ref.WeakReference;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Set;
import java.util.stream.Collectors;
/**
* Wrapper of CountryZonesFinder to normalize the country code and only show the regions that are
* has time zone shown in the time zone picker.
* The constructor reads the data from underlying file, and this means it should not be called
* from the UI thread.
*/
public class TimeZoneData {
private static WeakReference<TimeZoneData> sCache = null;
private final CountryZonesFinder mCountryZonesFinder;
private final Set<String> mRegionIds;
public static synchronized TimeZoneData getInstance() {
TimeZoneData data = sCache == null ? null : sCache.get();
if (data != null) {
return data;
}
data = new TimeZoneData();
sCache = new WeakReference<>(data);
return data;
}
public TimeZoneData() {
this(TimeZoneFinder.getInstance().getCountryZonesFinder());
}
@VisibleForTesting
public TimeZoneData(CountryZonesFinder countryZonesFinder) {
mCountryZonesFinder = countryZonesFinder;
mRegionIds = getNormalizedRegionIds(mCountryZonesFinder.lookupAllCountryIsoCodes());
}
public Set<String> getRegionIds() {
return mRegionIds;
}
public Set<String> lookupCountryCodesForZoneId(String tzId) {
if (tzId == null) {
return Collections.emptySet();
}
return mCountryZonesFinder.lookupCountryTimeZonesForZoneId(tzId).stream()
.filter(countryTimeZones ->
countryTimeZones.getTimeZoneMappings().stream()
.anyMatch(mapping ->
mapping.timeZoneId.equals(tzId) && mapping.showInPicker))
.map(countryTimeZones -> normalizeRegionId(countryTimeZones.getCountryIso()))
.collect(Collectors.toSet());
}
public FilteredCountryTimeZones lookupCountryTimeZones(String regionId) {
CountryTimeZones finder = regionId == null ? null
: mCountryZonesFinder.lookupCountryTimeZones(regionId);
return finder == null ? null : new FilteredCountryTimeZones(finder);
}
private static Set<String> getNormalizedRegionIds(List<String> regionIds) {
final Set<String> result = new HashSet<>(regionIds.size());
for (String regionId : regionIds) {
result.add(normalizeRegionId(regionId));
}
return Collections.unmodifiableSet(result);
}
// Uppercase ASCII is normalized for the purpose of using ICU API
public static String normalizeRegionId(String regionId) {
return regionId == null ? null : regionId.toUpperCase(Locale.US);
}
}