1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.datetime.timezone; 18 19 import android.app.Activity; 20 import android.app.settings.SettingsEnums; 21 import android.content.Intent; 22 import android.icu.text.Collator; 23 import android.icu.text.LocaleDisplayNames; 24 import android.os.Bundle; 25 import android.util.Log; 26 27 import androidx.annotation.VisibleForTesting; 28 29 import com.android.settings.R; 30 import com.android.settings.core.SubSettingLauncher; 31 import com.android.settings.datetime.timezone.BaseTimeZoneAdapter.AdapterItem; 32 import com.android.settings.datetime.timezone.model.FilteredCountryTimeZones; 33 import com.android.settings.datetime.timezone.model.TimeZoneData; 34 35 import java.util.ArrayList; 36 import java.util.Comparator; 37 import java.util.List; 38 import java.util.Set; 39 import java.util.TreeSet; 40 41 /** 42 * Render a list of regions into a list view. 43 */ 44 public class RegionSearchPicker extends BaseTimeZonePicker { 45 private static final int REQUEST_CODE_ZONE_PICKER = 1; 46 private static final String TAG = "RegionSearchPicker"; 47 48 private BaseTimeZoneAdapter<RegionItem> mAdapter; 49 private TimeZoneData mTimeZoneData; 50 RegionSearchPicker()51 public RegionSearchPicker() { 52 super(R.string.date_time_select_region, R.string.date_time_search_region, true, true); 53 } 54 55 @Override getMetricsCategory()56 public int getMetricsCategory() { 57 return SettingsEnums.SETTINGS_ZONE_PICKER_REGION; 58 } 59 60 @Override createAdapter(TimeZoneData timeZoneData)61 protected BaseTimeZoneAdapter createAdapter(TimeZoneData timeZoneData) { 62 mTimeZoneData = timeZoneData; 63 mAdapter = new BaseTimeZoneAdapter<>(createAdapterItem(timeZoneData.getRegionIds()), 64 this::onListItemClick, getLocale(), false /* showItemSummary */, 65 null /* headerText */); 66 return mAdapter; 67 } 68 onListItemClick(RegionItem item)69 private void onListItemClick(RegionItem item) { 70 final String regionId = item.getId(); 71 final FilteredCountryTimeZones countryTimeZones = mTimeZoneData.lookupCountryTimeZones( 72 regionId); 73 final Activity activity = getActivity(); 74 if (countryTimeZones == null || countryTimeZones.getTimeZoneIds().isEmpty()) { 75 Log.e(TAG, "Region has no time zones: " + regionId); 76 activity.setResult(Activity.RESULT_CANCELED); 77 activity.finish(); 78 return; 79 } 80 81 List<String> timeZoneIds = countryTimeZones.getTimeZoneIds(); 82 // Choose the time zone associated the region if there is only one time zone in that region 83 if (timeZoneIds.size() == 1) { 84 final Intent resultData = new Intent() 85 .putExtra(EXTRA_RESULT_REGION_ID, regionId) 86 .putExtra(EXTRA_RESULT_TIME_ZONE_ID, timeZoneIds.get(0)); 87 getActivity().setResult(Activity.RESULT_OK, resultData); 88 getActivity().finish(); 89 } else { 90 // Launch the zone picker and let the user choose a time zone from the list of 91 // time zones associated with the region. 92 final Bundle args = new Bundle(); 93 args.putString(RegionZonePicker.EXTRA_REGION_ID, regionId); 94 new SubSettingLauncher(getContext()) 95 .setDestination(RegionZonePicker.class.getCanonicalName()) 96 .setArguments(args) 97 .setSourceMetricsCategory(getMetricsCategory()) 98 .setResultListener(this, REQUEST_CODE_ZONE_PICKER) 99 .launch(); 100 } 101 } 102 103 @Override onActivityResult(int requestCode, int resultCode, Intent data)104 public void onActivityResult(int requestCode, int resultCode, Intent data) { 105 if (requestCode == REQUEST_CODE_ZONE_PICKER) { 106 if (resultCode == Activity.RESULT_OK) { 107 getActivity().setResult(Activity.RESULT_OK, data); 108 } 109 getActivity().finish(); 110 } 111 } 112 createAdapterItem(Set<String> regionIds)113 private List<RegionItem> createAdapterItem(Set<String> regionIds) { 114 final Collator collator = Collator.getInstance(getLocale()); 115 final TreeSet<RegionItem> items = new TreeSet<>(new RegionInfoComparator(collator)); 116 final LocaleDisplayNames localeDisplayNames = LocaleDisplayNames.getInstance(getLocale()); 117 long i = 0; 118 for (String regionId : regionIds) { 119 String name = localeDisplayNames.regionDisplayName(regionId); 120 items.add(new RegionItem(i++, regionId, name)); 121 } 122 return new ArrayList<>(items); 123 } 124 125 @VisibleForTesting 126 static class RegionItem implements AdapterItem { 127 128 private final String mId; 129 private final String mName; 130 private final long mItemId; 131 private final String[] mSearchKeys; 132 RegionItem(long itemId, String id, String name)133 RegionItem(long itemId, String id, String name) { 134 mId = id; 135 mName = name; 136 mItemId = itemId; 137 // Allow to search with ISO_3166-1 alpha-2 code. It's handy for english users in some 138 // countries, e.g. US for United States. It's not best search keys for users, but 139 // ICU doesn't have the data for the alias names of a region. 140 mSearchKeys = new String[] {mId, mName}; 141 } 142 getId()143 public String getId() { 144 return mId; 145 } 146 147 @Override getTitle()148 public CharSequence getTitle() { 149 return mName; 150 } 151 152 @Override getSummary()153 public CharSequence getSummary() { 154 return null; 155 } 156 157 @Override getIconText()158 public String getIconText() { 159 return null; 160 } 161 162 @Override getCurrentTime()163 public String getCurrentTime() { 164 return null; 165 } 166 167 @Override getItemId()168 public long getItemId() { 169 return mItemId; 170 } 171 172 @Override getSearchKeys()173 public String[] getSearchKeys() { 174 return mSearchKeys; 175 } 176 } 177 178 private static class RegionInfoComparator implements Comparator<RegionItem> { 179 private final Collator mCollator; 180 RegionInfoComparator(Collator collator)181 RegionInfoComparator(Collator collator) { 182 mCollator = collator; 183 } 184 185 @Override compare(RegionItem r1, RegionItem r2)186 public int compare(RegionItem r1, RegionItem r2) { 187 return mCollator.compare(r1.getTitle(), r2.getTitle()); 188 } 189 } 190 } 191