Android时间获取与使用

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：

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Time local = newTime();

local.set(System.currentTimeMillis());

mLocalTime.setText(local.format2445());

2.获取本机时间对应的上海时间：

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Time shanghai = newTime("Asia/Shanghai");

shanghai.set(System.currentTimeMillis());

mShangHaiTime.setText(shanghai.format2445());

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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

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Time tokyo = newTime("Asia/Tokyo");

tokyo.set(System.currentTimeMillis());

mTokyoTime.setText(tokyo.format2445());

4.获取网络时间：

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URL url = null;

            try{

                url = newURL("http://www.baidu.com");

            }catch(MalformedURLException e) {

                e.printStackTrace();

            }

            URLConnection uc = null;

            try{

                uc = url.openConnection();

                uc.connect();

            }catch(IOException e) {

                e.printStackTrace();

            }

            longld = uc.getDate();

            Date date = newDate(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：

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LocationManager locMan = (LocationManager) this.getSystemService(LOCATION_SERVICE);

        locMan.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,0,0,newLocationListener() {

            @Override

            publicvoid onLocationChanged(Location location) {

                longtime = location.getTime();

                Date date = newDate(time);

                mGpsTime.setText(date.toString());

            }

 

            @Override

            publicvoid onStatusChanged(String provider, intstatus, Bundle extras) {

 

            }

 

            @Override

            publicvoid onProviderEnabled(String provider) {

 

            }

 

            @Override

            publicvoid onProviderDisabled(String provider) {

 

            }

        });

6.计算手机当前时区和北京时区的差值：

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Date date = newDate();

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longtimezoneDiff = 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：

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//主要城市，国家对应表

String[] world = newString[]{

        "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",

};

测试程序下载地址：
http://download.csdn.net/detail/xzy2046/8161511