日期 時間
private void setTime( int hourOfDay, int minute) {
Calendar c = Calendar.getInstance();
c.set(Calendar.HOUR_OF_DAY, hourOfDay);
c.set(Calendar.MINUTE, minute);
c.set(Calendar.SECOND, 0);
c.set(Calendar.MILLISECOND, 0);
long when = c.getTimeInMillis();
if (when / 1000 < Integer.MAX_VALUE) {
((AlarmManager) getSystemService(Context.ALARM_SERVICE)).setTime(when);
}
}
private void setDate(int year, int month, int day) {
Calendar c = Calendar.getInstance();
c.set(Calendar.YEAR, year);
c.set(Calendar.MONTH, month);
c.set(Calendar.DAY_OF_MONTH, day);
long when = c.getTimeInMillis();
if (when / 1000 < Integer.MAX_VALUE) {
((AlarmManager) getSystemService(Context.ALARM_SERVICE)).setTime(when);
}
}
需要注意Calendar.MONTH 比實際月份小1,比如1月值是0
時區
public static String getTimeZoneText(TimeZone tz, boolean includeName) {
Date now = new Date();
// Use SimpleDateFormat to format the GMT+00:00 string.
SimpleDateFormat gmtFormatter = new SimpleDateFormat("ZZZZ");
gmtFormatter.setTimeZone(tz);
String gmtString = gmtFormatter.format(now);
// Ensure that the "GMT+" stays with the "00:00" even if the digits are RTL.
BidiFormatter bidiFormatter = BidiFormatter.getInstance();
Locale l = Locale.getDefault();
boolean isRtl = TextUtils.getLayoutDirectionFromLocale(l) == View.LAYOUT_DIRECTION_RTL;
gmtString = bidiFormatter.unicodeWrap(gmtString,
isRtl ? TextDirectionHeuristics.RTL : TextDirectionHeuristics.LTR);
if (!includeName) {
return gmtString;
}
// Optionally append the time zone name.
SimpleDateFormat zoneNameFormatter = new SimpleDateFormat("zzzz");
zoneNameFormatter.setTimeZone(tz);
String zoneNameString = zoneNameFormatter.format(now);
// We don't use punctuation here to avoid having to worry about localizing that too!
return gmtString + " " + zoneNameString;
}
static class ZoneGetter {
private final List<HashMap<String, Object>> mZones =
new ArrayList<HashMap<String, Object>>();
private final HashSet<String> mLocalZones = new HashSet<String>();
private final Date mNow = Calendar.getInstance().getTime();
private final SimpleDateFormat mZoneNameFormatter = new SimpleDateFormat("zzzz");
private List<HashMap<String, Object>> getZones(Context context) {
for (String olsonId : TimeZoneNames.forLocale(Locale.getDefault())) {
mLocalZones.add(olsonId);
}
try {
XmlResourceParser xrp = context.getResources().getXml(R.xml.timezones);
while (xrp.next() != XmlResourceParser.START_TAG) {
continue;
}
xrp.next();
while (xrp.getEventType() != XmlResourceParser.END_TAG) {
while (xrp.getEventType() != XmlResourceParser.START_TAG) {
if (xrp.getEventType() == XmlResourceParser.END_DOCUMENT) {
return mZones;
}
xrp.next();
}
if (xrp.getName().equals(XMLTAG_TIMEZONE)) {
String olsonId = xrp.getAttributeValue(0);
addTimeZone(olsonId);
}
while (xrp.getEventType() != XmlResourceParser.END_TAG) {
xrp.next();
}
xrp.next();
}
xrp.close();
} catch (XmlPullParserException xppe) {
Log.e(TAG, "Ill-formatted timezones.xml file");
} catch (java.io.IOException ioe) {
Log.e(TAG, "Unable to read timezones.xml file");
}
return mZones;
}
private void addTimeZone(String olsonId) {
// We always need the "GMT-07:00" string.
final TimeZone tz = TimeZone.getTimeZone(olsonId);
// For the display name, we treat time zones within the country differently
// from other countries' time zones. So in en_US you'd get "Pacific Daylight Time"
// but in de_DE you'd get "Los Angeles" for the same time zone.
String displayName;
if (mLocalZones.contains(olsonId)) {
// Within a country, we just use the local name for the time zone.
mZoneNameFormatter.setTimeZone(tz);
displayName = mZoneNameFormatter.format(mNow);
} else {
// For other countries' time zones, we use the exemplar location.
final String localeName = Locale.getDefault().toString();
displayName = TimeZoneNames.getExemplarLocation(localeName, olsonId);
}
final HashMap<String, Object> map = new HashMap<String, Object>();
map.put(KEY_ID, olsonId);
map.put(KEY_DISPLAYNAME, displayName);
map.put(KEY_GMT, getTimeZoneText(tz, false));
map.put(KEY_OFFSET, tz.getOffset(mNow.getTime()));
mZones.add(map);
}
}
private static class MyComparator implements Comparator<HashMap<?, ?>> {
private String mSortingKey;
public MyComparator(String sortingKey) {
mSortingKey = sortingKey;
}
public void setSortingKey(String sortingKey) {
mSortingKey = sortingKey;
}
public int compare(HashMap<?, ?> map1, HashMap<?, ?> map2) {
Object value1 = map1.get(mSortingKey);
Object value2 = map2.get(mSortingKey);
/*
* This should never happen, but just in-case, put non-comparable
* items at the end.
*/
if (!isComparable(value1)) {
return isComparable(value2) ? 1 : 0;
} else if (!isComparable(value2)) {
return -1;
}
return ((Comparable) value1).compareTo(value2);
}
private boolean isComparable(Object value) {
return (value != null) && (value instanceof Comparable);
}
}
設置時區
AlarmManager alarm = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarm.setTimeZone(tzId);
時區timezones.xml文件
<timezones>
<timezone id="Pacific/Majuro"></timezone>
<timezone id="Pacific/Midway"></timezone>
<timezone id="Pacific/Honolulu"></timezone>
<timezone id="America/Anchorage"></timezone>
<timezone id="America/Los_Angeles"></timezone>
<timezone id="America/Tijuana"></timezone>
<timezone id="America/Phoenix"></timezone>
<timezone id="America/Chihuahua"></timezone>
<timezone id="America/Denver"></timezone>
<timezone id="America/Costa_Rica"></timezone>
<timezone id="America/Chicago"></timezone>
<timezone id="America/Mexico_City"></timezone>
<timezone id="America/Regina"></timezone>
<timezone id="America/Bogota"></timezone>
<timezone id="America/New_York"></timezone>
<timezone id="America/Caracas"></timezone>
<timezone id="America/Barbados"></timezone>
<timezone id="America/Halifax"></timezone>
<timezone id="America/Manaus"></timezone>
<timezone id="America/Santiago"></timezone>
<timezone id="America/St_Johns"></timezone>
<timezone id="America/Sao_Paulo"></timezone>
<timezone id="America/Buenos_Aires"></timezone>
<timezone id="America/Godthab"></timezone>
<timezone id="America/Montevideo"></timezone>
<timezone id="Atlantic/South_Georgia"></timezone>
<timezone id="Atlantic/Azores"></timezone>
<timezone id="Atlantic/Cape_Verde"></timezone>
<timezone id="Africa/Casablanca"></timezone>
<timezone id="Europe/London"></timezone>
<timezone id="Europe/Amsterdam"></timezone>
<timezone id="Europe/Belgrade"></timezone>
<timezone id="Europe/Brussels"></timezone>
<timezone id="Europe/Sarajevo"></timezone>
<timezone id="Africa/Windhoek"></timezone>
<timezone id="Africa/Brazzaville"></timezone>
<timezone id="Asia/Amman"></timezone>
<timezone id="Europe/Athens"></timezone>
<timezone id="Asia/Beirut"></timezone>
<timezone id="Africa/Cairo"></timezone>
<timezone id="Europe/Helsinki"></timezone>
<timezone id="Asia/Jerusalem"></timezone>
<timezone id="Europe/Minsk"></timezone>
<timezone id="Africa/Harare"></timezone>
<timezone id="Asia/Baghdad"></timezone>
<timezone id="Europe/Moscow"></timezone>
<timezone id="Asia/Kuwait"></timezone>
<timezone id="Africa/Nairobi"></timezone>
<timezone id="Asia/Tehran"></timezone>
<timezone id="Asia/Baku"></timezone>
<timezone id="Asia/Tbilisi"></timezone>
<timezone id="Asia/Yerevan"></timezone>
<timezone id="Asia/Dubai"></timezone>
<timezone id="Asia/Kabul"></timezone>
<timezone id="Asia/Karachi"></timezone>
<timezone id="Asia/Oral"></timezone>
<timezone id="Asia/Yekaterinburg"></timezone>
<timezone id="Asia/Calcutta"></timezone>
<timezone id="Asia/Colombo"></timezone>
<timezone id="Asia/Katmandu"></timezone>
<timezone id="Asia/Almaty"></timezone>
<timezone id="Asia/Rangoon"></timezone>
<timezone id="Asia/Krasnoyarsk"></timezone>
<timezone id="Asia/Bangkok"></timezone>
<timezone id="Asia/Jakarta"></timezone>
<timezone id="Asia/Shanghai"></timezone>
<timezone id="Asia/Hong_Kong"></timezone>
<timezone id="Asia/Irkutsk"></timezone>
<timezone id="Asia/Kuala_Lumpur"></timezone>
<timezone id="Australia/Perth"></timezone>
<timezone id="Asia/Taipei"></timezone>
<timezone id="Asia/Seoul"></timezone>
<timezone id="Asia/Tokyo"></timezone>
<timezone id="Asia/Yakutsk"></timezone>
<timezone id="Australia/Adelaide"></timezone>
<timezone id="Australia/Darwin"></timezone>
<timezone id="Australia/Brisbane"></timezone>
<timezone id="Australia/Hobart"></timezone>
<timezone id="Australia/Sydney"></timezone>
<timezone id="Asia/Vladivostok"></timezone>
<timezone id="Pacific/Guam"></timezone>
<timezone id="Asia/Magadan"></timezone>
<timezone id="Pacific/Auckland"></timezone>
<timezone id="Pacific/Fiji"></timezone>
<timezone id="Pacific/Tongatapu"></timezone>
<timezone id="Asia/Manila">Manila</timezone>
</timezones>