Android时间获取与使用-白红宇

Android时间获取与使用

阅读量：4050 次

发布时间：2019-05-25

本文共 11069 字，大约阅读时间需要 36 分钟。

编写Android网络程序时难免会遇到手机时间不准确的问题，本文总结了一些常用的时间获取与校正方法：

转载请注明：http://blog.csdn.net/xzy2046

1.获取本机当前时间：

                            
Time local = 
new
 Time();
local.set(System.currentTimeMillis());
mLocalTime.setText(local.format2445());
         
       

2.获取本机时间对应的上海时间：

                            
Time shanghai = 
new
 Time(
"Asia/Shanghai"
);
shanghai.set(System.currentTimeMillis());
mShangHaiTime.setText(shanghai.format2445());
         
       

                            
各位可能想了解类似<span style=
"background-color: rgb(240, 240, 240);"
>Asia/Shanghai从哪边可以查到，本文最后将附上查找表。</span>

3.获取本机时间对应的东京时间

                            
Time tokyo = 
new
 Time(
"Asia/Tokyo"
);
tokyo.set(System.currentTimeMillis());
mTokyoTime.setText(tokyo.format2445());
         
       

4.获取网络时间：

                            
URL url = 
null
;
            
try
 { 
                
url = 
new
 URL(
""
);
            
} 
catch
 (MalformedURLException e) { 
                
e.printStackTrace();
            
}
            
URLConnection uc = 
null
;
            
try
 { 
                
uc = url.openConnection();
                
uc.connect();
            
} 
catch
 (IOException e) { 
                
e.printStackTrace();
            
}
            
long
 ld = uc.getDate();
            
Date date = 
new
 Date(ld);
            
Log.i(
"xzy"
, 
"Net Time is : "
 + date.getHours() + 
"时"
 + date.getMinutes() + 
"分"
 + date.getSeconds() + 
"秒"
);
         
       

注意网络相关方法需要做异步处理，不能直接在UI线程中获取。本文最后将提供一个Demo，在AsyncTaskLoader中进行网络请求。

5.通过Gps获取当前时间：

                            
LocationManager locMan = (LocationManager) 
this
.getSystemService(LOCATION_SERVICE);
        
locMan.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 
0
, 
0
, 
new
 LocationListener() { 
            
@Override
            
public
 void
 onLocationChanged(Location location) { 
                
long
 time = location.getTime();
                
Date date = 
new
 Date(time);
                
mGpsTime.setText(date.toString());
            
}
            
@Override
            
public
 void
 onStatusChanged(String provider, 
int
 status, Bundle extras) { 
            
}
            
@Override
            
public
 void
 onProviderEnabled(String provider) { 
            
}
            
@Override
            
public
 void
 onProviderDisabled(String provider) { 
            
}
        
});
         
       

6.计算手机当前时区和北京时区的差值：

                            
Date date = 
new
 Date();

                            
long
 timezoneDiff = TimeZone.getDefault().getOffset(date.getTime()) - TimeZone
                
.getTimeZone(
"GMT+8"
).getOffset(date.getTime());

通过这个差值和之前我们获取网络时间，可以计算出本机时间和网络时间的差值。对时间进行转换，解决一系列的时间错误问题。

7.附国家缩写和时区名称对照表：

                            
//主要城市，国家对应表
String[] world = 
new
 String[]{ 
        
"ad"
, 
"Europe/Andorra"
,
        
"ae"
, 
"Asia/Dubai"
,
        
"af"
, 
"Asia/Kabul"
,
        
"ag"
, 
"America/Antigua"
,
        
"ai"
, 
"America/Anguilla"
,
        
"al"
, 
"Europe/Tirane"
,
        
"am"
, 
"Asia/Yerevan"
,
        
"an"
, 
"America/Curacao"
,
        
"ao"
, 
"Africa/Luanda"
,
        
"aq"
, 
"Antarctica/McMurdo"
,
        
"aq"
, 
"Antarctica/DumontDUrville"
,
        
"aq"
, 
"Antarctica/Casey"
,
        
"aq"
, 
"Antarctica/Davis"
,
        
"aq"
, 
"Antarctica/Mawson"
,
        
"aq"
, 
"Antarctica/Syowa"
,
        
"aq"
, 
"Antarctica/Rothera"
,
        
"aq"
, 
"Antarctica/Palmer"
,
        
"ar"
, 
"America/Argentina/Buenos_Aires"
,
        
"as"
, 
"Pacific/Pago_Pago"
,
        
"at"
, 
"Europe/Vienna"
,
        
"au"
, 
"Australia/Sydney"
,
        
"au"
, 
"Australia/Adelaide"
,
        
"au"
, 
"Australia/Perth"
,
        
"au"
, 
"Australia/Eucla"
,
        
"aw"
, 
"America/Aruba"
,
        
"ax"
, 
"Europe/Mariehamn"
,
        
"az"
, 
"Asia/Baku"
,
        
"ba"
, 
"Europe/Sarajevo"
,
        
"bb"
, 
"America/Barbados"
,
        
"bd"
, 
"Asia/Dhaka"
,
        
"be"
, 
"Europe/Brussels"
,
        
"bf"
, 
"Africa/Ouagadougou"
,
        
"bg"
, 
"Europe/Sofia"
,
        
"bh"
, 
"Asia/Bahrain"
,
        
"bi"
, 
"Africa/Bujumbura"
,
        
"bj"
, 
"Africa/Porto-Novo"
,
        
"bm"
, 
"Atlantic/Bermuda"
,
        
"bn"
, 
"Asia/Brunei"
,
        
"bo"
, 
"America/La_Paz"
,
        
"br"
, 
"America/Noronha"
,
        
"br"
, 
"America/Sao_Paulo"
,
        
"br"
, 
"America/Manaus"
,
        
"bs"
, 
"America/Nassau"
,
        
"bt"
, 
"Asia/Thimphu"
,
        
"bw"
, 
"Africa/Gaborone"
,
        
"by"
, 
"Europe/Minsk"
,
        
"bz"
, 
"America/Belize"
,
        
"ca"
, 
"America/St_Johns"
,
        
"ca"
, 
"America/Halifax"
,
        
"ca"
, 
"America/Toronto"
,
        
"ca"
, 
"America/Winnipeg"
,
        
"ca"
, 
"America/Edmonton"
,
        
"ca"
, 
"America/Vancouver"
,
        
"cc"
, 
"Indian/Cocos"
,
        
"cd"
, 
"Africa/Lubumbashi"
,
        
"cd"
, 
"Africa/Kinshasa"
,
        
"cf"
, 
"Africa/Bangui"
,
        
"cg"
, 
"Africa/Brazzaville"
,
        
"ch"
, 
"Europe/Zurich"
,
        
"ci"
, 
"Africa/Abidjan"
,
        
"ck"
, 
"Pacific/Rarotonga"
,
        
"cl"
, 
"America/Santiago"
,
        
"cl"
, 
"Pacific/Easter"
,
        
"cm"
, 
"Africa/Douala"
,
        
"cn"
, 
"Asia/Shanghai"
,
        
"co"
, 
"America/Bogota"
,
        
"cr"
, 
"America/Costa_Rica"
,
        
"cu"
, 
"America/Havana"
,
        
"cv"
, 
"Atlantic/Cape_Verde"
,
        
"cx"
, 
"Indian/Christmas"
,
        
"cy"
, 
"Asia/Nicosia"
,
        
"cz"
, 
"Europe/Prague"
,
        
"de"
, 
"Europe/Berlin"
,
        
"dj"
, 
"Africa/Djibouti"
,
        
"dk"
, 
"Europe/Copenhagen"
,
        
"dm"
, 
"America/Dominica"
,
        
"do"
, 
"America/Santo_Domingo"
,
        
"dz"
, 
"Africa/Algiers"
,
        
"ec"
, 
"America/Guayaquil"
,
        
"ec"
, 
"Pacific/Galapagos"
,
        
"ee"
, 
"Europe/Tallinn"
,
        
"eg"
, 
"Africa/Cairo"
,
        
"eh"
, 
"Africa/El_Aaiun"
,
        
"er"
, 
"Africa/Asmara"
,
        
"es"
, 
"Europe/Madrid"
,
        
"es"
, 
"Atlantic/Canary"
,
        
"et"
, 
"Africa/Addis_Ababa"
,
        
"fi"
, 
"Europe/Helsinki"
,
        
"fj"
, 
"Pacific/Fiji"
,
        
"fk"
, 
"Atlantic/Stanley"
,
        
"fm"
, 
"Pacific/Ponape"
,
        
"fm"
, 
"Pacific/Truk"
,
        
"fo"
, 
"Atlantic/Faroe"
,
        
"fr"
, 
"Europe/Paris"
,
        
"ga"
, 
"Africa/Libreville"
,
        
"gb"
, 
"Europe/London"
,
        
"gd"
, 
"America/Grenada"
,
        
"ge"
, 
"Asia/Tbilisi"
,
        
"gf"
, 
"America/Cayenne"
,
        
"gg"
, 
"Europe/Guernsey"
,
        
"gh"
, 
"Africa/Accra"
,
        
"gi"
, 
"Europe/Gibraltar"
,
        
"gl"
, 
"America/Danmarkshavn"
,
        
"gl"
, 
"America/Scoresbysund"
,
        
"gl"
, 
"America/Godthab"
,
        
"gl"
, 
"America/Thule"
,
        
"gm"
, 
"Africa/Banjul"
,
        
"gn"
, 
"Africa/Conakry"
,
        
"gp"
, 
"America/Guadeloupe"
,
        
"gq"
, 
"Africa/Malabo"
,
        
"gr"
, 
"Europe/Athens"
,
        
"gs"
, 
"Atlantic/South_Georgia"
,
        
"gt"
, 
"America/Guatemala"
,
        
"gu"
, 
"Pacific/Guam"
,
        
"gw"
, 
"Africa/Bissau"
,
        
"gy"
, 
"America/Guyana"
,
        
"hk"
, 
"Asia/Hong_Kong"
,
        
"hn"
, 
"America/Tegucigalpa"
,
        
"hr"
, 
"Europe/Zagreb"
,
        
"ht"
, 
"America/Port-au-Prince"
,
        
"hu"
, 
"Europe/Budapest"
,
        
"id"
, 
"Asia/Jayapura"
,
        
"id"
, 
"Asia/Makassar"
,
        
"id"
, 
"Asia/Jakarta"
,
        
"ie"
, 
"Europe/Dublin"
,
        
"il"
, 
"Asia/Jerusalem"
,
        
"im"
, 
"Europe/Isle_of_Man"
,
        
"in"
, 
"Asia/Calcutta"
,
        
"io"
, 
"Indian/Chagos"
,
        
"iq"
, 
"Asia/Baghdad"
,
        
"ir"
, 
"Asia/Tehran"
,
        
"is"
, 
"Atlantic/Reykjavik"
,
        
"it"
, 
"Europe/Rome"
,
        
"je"
, 
"Europe/Jersey"
,
        
"jm"
, 
"America/Jamaica"
,
        
"jo"
, 
"Asia/Amman"
,
        
"jp"
, 
"Asia/Tokyo"
,
        
"ke"
, 
"Africa/Nairobi"
,
        
"kg"
, 
"Asia/Bishkek"
,
        
"kh"
, 
"Asia/Phnom_Penh"
,
        
"ki"
, 
"Pacific/Kiritimati"
,
        
"ki"
, 
"Pacific/Enderbury"
,
        
"ki"
, 
"Pacific/Tarawa"
,
        
"km"
, 
"Indian/Comoro"
,
        
"kn"
, 
"America/St_Kitts"
,
        
"kp"
, 
"Asia/Pyongyang"
,
        
"kr"
, 
"Asia/Seoul"
,
        
"kw"
, 
"Asia/Kuwait"
,
        
"ky"
, 
"America/Cayman"
,
        
"kz"
, 
"Asia/Almaty"
,
        
"kz"
, 
"Asia/Aqtau"
,
        
"la"
, 
"Asia/Vientiane"
,
        
"lb"
, 
"Asia/Beirut"
,
        
"lc"
, 
"America/St_Lucia"
,
        
"li"
, 
"Europe/Vaduz"
,
        
"lk"
, 
"Asia/Colombo"
,
        
"lr"
, 
"Africa/Monrovia"
,
        
"ls"
, 
"Africa/Maseru"
,
        
"lt"
, 
"Europe/Vilnius"
,
        
"lu"
, 
"Europe/Luxembourg"
,
        
"lv"
, 
"Europe/Riga"
,
        
"ly"
, 
"Africa/Tripoli"
,
        
"ma"
, 
"Africa/Casablanca"
,
        
"mc"
, 
"Europe/Monaco"
,
        
"md"
, 
"Europe/Chisinau"
,
        
"me"
, 
"Europe/Podgorica"
,
        
"mg"
, 
"Indian/Antananarivo"
,
        
"mh"
, 
"Pacific/Majuro"
,
        
"mk"
, 
"Europe/Skopje"
,
        
"ml"
, 
"Africa/Bamako"
,
        
"mm"
, 
"Asia/Rangoon"
,
        
"mn"
, 
"Asia/Choibalsan"
,
        
"mn"
, 
"Asia/Hovd"
,
        
"mo"
, 
"Asia/Macau"
,
        
"mp"
, 
"Pacific/Saipan"
,
        
"mq"
, 
"America/Martinique"
,
        
"mr"
, 
"Africa/Nouakchott"
,
        
"ms"
, 
"America/Montserrat"
,
        
"mt"
, 
"Europe/Malta"
,
        
"mu"
, 
"Indian/Mauritius"
,
        
"mv"
, 
"Indian/Maldives"
,
        
"mw"
, 
"Africa/Blantyre"
,
        
"mx"
, 
"America/Mexico_City"
,
        
"mx"
, 
"America/Chihuahua"
,
        
"mx"
, 
"America/Tijuana"
,
        
"my"
, 
"Asia/Kuala_Lumpur"
,
        
"mz"
, 
"Africa/Maputo"
,
        
"na"
, 
"Africa/Windhoek"
,
        
"nc"
, 
"Pacific/Noumea"
,
        
"ne"
, 
"Africa/Niamey"
,
        
"nf"
, 
"Pacific/Norfolk"
,
        
"ng"
, 
"Africa/Lagos"
,
        
"ni"
, 
"America/Managua"
,
        
"nl"
, 
"Europe/Amsterdam"
,
        
"no"
, 
"Europe/Oslo"
,
        
"np"
, 
"Asia/Katmandu"
,
        
"nr"
, 
"Pacific/Nauru"
,
        
"nu"
, 
"Pacific/Niue"
,
        
"nz"
, 
"Pacific/Auckland"
,
        
"nz"
, 
"Pacific/Chatham"
,
        
"om"
, 
"Asia/Muscat"
,
        
"pa"
, 
"America/Panama"
,
        
"pe"
, 
"America/Lima"
,
        
"pf"
, 
"Pacific/Gambier"
,
        
"pf"
, 
"Pacific/Marquesas"
,
        
"pf"
, 
"Pacific/Tahiti"
,
        
"pg"
, 
"Pacific/Port_Moresby"
,
        
"ph"
, 
"Asia/Manila"
,
        
"pk"
, 
"Asia/Karachi"
,
        
"pl"
, 
"Europe/Warsaw"
,
        
"pm"
, 
"America/Miquelon"
,
        
"pn"
, 
"Pacific/Pitcairn"
,
        
"pr"
, 
"America/Puerto_Rico"
,
        
"ps"
, 
"Asia/Gaza"
,
        
"pt"
, 
"Europe/Lisbon"
,
        
"pt"
, 
"Atlantic/Azores"
,
        
"pw"
, 
"Pacific/Palau"
,
        
"py"
, 
"America/Asuncion"
,
        
"qa"
, 
"Asia/Qatar"
,
        
"re"
, 
"Indian/Reunion"
,
        
"ro"
, 
"Europe/Bucharest"
,
        
"rs"
, 
"Europe/Belgrade"
,
        
"ru"
, 
"Asia/Kamchatka"
,
        
"ru"
, 
"Asia/Magadan"
,
        
"ru"
, 
"Asia/Vladivostok"
,
        
"ru"
, 
"Asia/Yakutsk"
,
        
"ru"
, 
"Asia/Irkutsk"
,
        
"ru"
, 
"Asia/Krasnoyarsk"
,
        
"ru"
, 
"Asia/Novosibirsk"
,
        
"ru"
, 
"Asia/Yekaterinburg"
,
        
"ru"
, 
"Europe/Samara"
,
        
"ru"
, 
"Europe/Moscow"
,
        
"ru"
, 
"Europe/Kaliningrad"
,
        
"rw"
, 
"Africa/Kigali"
,
        
"sa"
, 
"Asia/Riyadh"
,
        
"sb"
, 
"Pacific/Guadalcanal"
,
        
"sc"
, 
"Indian/Mahe"
,
        
"sd"
, 
"Africa/Khartoum"
,
        
"se"
, 
"Europe/Stockholm"
,
        
"sg"
, 
"Asia/Singapore"
,
        
"sh"
, 
"Atlantic/St_Helena"
,
        
"si"
, 
"Europe/Ljubljana"
,
        
"sj"
, 
"Arctic/Longyearbyen"
,
        
"sk"
, 
"Europe/Bratislava"
,
        
"sl"
, 
"Africa/Freetown"
,
        
"sm"
, 
"Europe/San_Marino"
,
        
"sn"
, 
"Africa/Dakar"
,
        
"so"
, 
"Africa/Mogadishu"
,
        
"sr"
, 
"America/Paramaribo"
,
        
"st"
, 
"Africa/Sao_Tome"
,
        
"sv"
, 
"America/El_Salvador"
,
        
"sy"
, 
"Asia/Damascus"
,
        
"sz"
, 
"Africa/Mbabane"
,
        
"tc"
, 
"America/Grand_Turk"
,
        
"td"
, 
"Africa/Ndjamena"
,
        
"tf"
, 
"Indian/Kerguelen"
,
        
"tg"
, 
"Africa/Lome"
,
        
"th"
, 
"Asia/Bangkok"
,
        
"tj"
, 
"Asia/Dushanbe"
,
        
"tk"
, 
"Pacific/Fakaofo"
,
        
"tl"
, 
"Asia/Dili"
,
        
"tm"
, 
"Asia/Ashgabat"
,
        
"tn"
, 
"Africa/Tunis"
,
        
"to"
, 
"Pacific/Tongatapu"
,
        
"tr"
, 
"Europe/Istanbul"
,
        
"tt"
, 
"America/Port_of_Spain"
,
        
"tv"
, 
"Pacific/Funafuti"
,
        
"tw"
, 
"Asia/Taipei"
,
        
"tz"
, 
"Africa/Dar_es_Salaam"
,
        
"ua"
, 
"Europe/Kiev"
,
        
"ug"
, 
"Africa/Kampala"
,
        
"um"
, 
"Pacific/Wake"
,
        
"um"
, 
"Pacific/Johnston"
,
        
"um"
, 
"Pacific/Midway"
,
        
"us"
, 
"America/New_York"
,
        
"us"
, 
"America/Chicago"
,
        
"us"
, 
"America/Denver"
,
        
"us"
, 
"America/Los_Angeles"
,
        
"us"
, 
"America/Anchorage"
,
        
"us"
, 
"Pacific/Honolulu"
,
        
"uy"
, 
"America/Montevideo"
,
        
"uz"
, 
"Asia/Tashkent"
,
        
"va"
, 
"Europe/Vatican"
,
        
"vc"
, 
"America/St_Vincent"
,
        
"ve"
, 
"America/Caracas"
,
        
"vg"
, 
"America/Tortola"
,
        
"vi"
, 
"America/St_Thomas"
,
        
"vn"
, 
"Asia/Saigon"
,
        
"vu"
, 
"Pacific/Efate"
,
        
"wf"
, 
"Pacific/Wallis"
,
        
"ws"
, 
"Pacific/Apia"
,
        
"ye"
, 
"Asia/Aden"
,
        
"yt"
, 
"Indian/Mayotte"
,
        
"za"
, 
"Africa/Johannesburg"
,
        
"zm"
, 
"Africa/Lusaka"
,
        
"zw"
, 
"Africa/Harare"
,
};
         
       

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http://download.csdn.net/detail/xzy2046/8161511

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