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Merge "Replace @CorePlatformApi APIs usages in TimeZoneInfoPreferenceControllerTest" am: 3166166bdd am: e6bf1a83d8 am: b9bebd5bd9 am: eca37a8849

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Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/1831314

Change-Id: Ibcbd24530e7e94a2941d840701158457bbcde835
This commit is contained in:
vichang
2021-09-21 11:31:11 +00:00
committed by Automerger Merge Worker
parent 22015ac5c5 eca37a8849
commit e4ccdef15a
2 changed files with 48 additions and 28 deletions
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13
src/com/android/settings/datetime/timezone/TimeZoneInfo.java
View File

@@ -151,7 +151,7 @@ public class TimeZoneInfo {
public TimeZoneInfo format(TimeZone timeZone) { public TimeZoneInfo format(TimeZone timeZone) {
String canonicalZoneId = getCanonicalZoneId(timeZone); String canonicalZoneId = getCanonicalZoneId(timeZone);
final TimeZoneNames timeZoneNames = mTimeZoneFormat.getTimeZoneNames(); final TimeZoneNames timeZoneNames = mTimeZoneFormat.getTimeZoneNames();
final java.util.TimeZone javaTimeZone = java.util.TimeZone.getTimeZone(canonicalZoneId); final java.util.TimeZone javaTimeZone = toJavaTimeZone(canonicalZoneId);
final CharSequence gmtOffset = ZoneGetter.getGmtOffsetText(mTimeZoneFormat, mLocale, final CharSequence gmtOffset = ZoneGetter.getGmtOffsetText(mTimeZoneFormat, mLocale,
javaTimeZone, mNow); javaTimeZone, mNow);
return new TimeZoneInfo.Builder(timeZone) return new TimeZoneInfo.Builder(timeZone)
@@ -165,6 +165,16 @@ public class TimeZoneInfo {
.setGmtOffset(gmtOffset) .setGmtOffset(gmtOffset)
.build(); .build();
} }
}
/* package-private */ java.util.TimeZone getJavaTimeZone() {
String canonicalZoneId = getCanonicalZoneId(mTimeZone);
return toJavaTimeZone(canonicalZoneId);
}
private static java.util.TimeZone toJavaTimeZone(String canonicalZoneId) {
return java.util.TimeZone.getTimeZone(canonicalZoneId);
}
private static String getCanonicalZoneId(TimeZone timeZone) { private static String getCanonicalZoneId(TimeZone timeZone) {
final String id = timeZone.getID(); final String id = timeZone.getID();
@@ -174,6 +184,5 @@ public class TimeZoneInfo {
} }
return id; return id;
} }
}
} }

51
src/com/android/settings/datetime/timezone/TimeZoneInfoPreferenceController.java
View File

@@ -20,17 +20,17 @@ import android.content.Context;
import android.icu.text.DateFormat; import android.icu.text.DateFormat;
import android.icu.text.DisplayContext; import android.icu.text.DisplayContext;
import android.icu.text.SimpleDateFormat; import android.icu.text.SimpleDateFormat;
import android.icu.util.BasicTimeZone;
import android.icu.util.Calendar; import android.icu.util.Calendar;
import android.icu.util.TimeZone; import android.icu.util.TimeZone;
import android.icu.util.TimeZoneTransition;
import androidx.annotation.VisibleForTesting; import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
import com.android.settings.R; import com.android.settings.R;
import com.android.settings.core.BasePreferenceController; import com.android.settings.core.BasePreferenceController;
import java.time.Instant;
import java.time.zone.ZoneOffsetTransition;
import java.time.zone.ZoneRules;
import java.util.Date; import java.util.Date;
public class TimeZoneInfoPreferenceController extends BasePreferenceController { public class TimeZoneInfoPreferenceController extends BasePreferenceController {
@@ -86,11 +86,11 @@ public class TimeZoneInfoPreferenceController extends BasePreferenceController {
return mContext.getString(R.string.zone_info_footer_no_dst, offsetAndName); return mContext.getString(R.string.zone_info_footer_no_dst, offsetAndName);
} }
final TimeZoneTransition nextDstTransition = findNextDstTransition(timeZone); final ZoneOffsetTransition nextDstTransition = findNextDstTransition(item);
if (nextDstTransition == null) { if (nextDstTransition == null) { // No future transition
return null; return mContext.getString(R.string.zone_info_footer_no_dst, offsetAndName);
} }
final boolean toDst = nextDstTransition.getTo().getDSTSavings() != 0; final boolean toDst = getDSTSavings(timeZone, nextDstTransition.getInstant()) != 0;
String timeType = toDst ? item.getDaylightName() : item.getStandardName(); String timeType = toDst ? item.getDaylightName() : item.getStandardName();
if (timeType == null) { if (timeType == null) {
// Fall back to generic "summer time" and "standard time" if the time zone has no // Fall back to generic "summer time" and "standard time" if the time zone has no
@@ -101,26 +101,37 @@ public class TimeZoneInfoPreferenceController extends BasePreferenceController {
} }
final Calendar transitionTime = Calendar.getInstance(timeZone); final Calendar transitionTime = Calendar.getInstance(timeZone);
transitionTime.setTimeInMillis(nextDstTransition.getTime()); transitionTime.setTimeInMillis(nextDstTransition.getInstant().toEpochMilli());
final String date = mDateFormat.format(transitionTime); final String date = mDateFormat.format(transitionTime);
return SpannableUtil.getResourcesText(mContext.getResources(), return SpannableUtil.getResourcesText(mContext.getResources(),
R.string.zone_info_footer, offsetAndName, timeType, date); R.string.zone_info_footer, offsetAndName, timeType, date);
} }
private TimeZoneTransition findNextDstTransition(TimeZone timeZone) { private ZoneOffsetTransition findNextDstTransition(TimeZoneInfo timeZoneInfo) {
if (!(timeZone instanceof BasicTimeZone)) { TimeZone timeZone = timeZoneInfo.getTimeZone();
return null; ZoneRules zoneRules = timeZoneInfo.getJavaTimeZone().toZoneId().getRules();
}
final BasicTimeZone basicTimeZone = (BasicTimeZone) timeZone; Instant from = mDate.toInstant();
TimeZoneTransition transition = basicTimeZone.getNextTransition(
mDate.getTime(), /* inclusive */ false); ZoneOffsetTransition transition;
do { while (true) { // Find next transition with different DST offsets
if (transition.getTo().getDSTSavings() != transition.getFrom().getDSTSavings()) { transition = zoneRules.nextTransition(from);
if (transition == null) {
break; break;
} }
transition = basicTimeZone.getNextTransition( Instant to = transition.getInstant();
transition.getTime(), /*inclusive */ false); if (getDSTSavings(timeZone, from) != getDSTSavings(timeZone, to)) {
} while (transition != null); break;
}
from = to;
}
return transition; return transition;
} }
private static int getDSTSavings(TimeZone timeZone, Instant instant) {
int[] offsets = new int[2];
timeZone.getOffset(instant.toEpochMilli(), false /* local time */, offsets);
return offsets[1];
}
} }