Acquisition of system date and time in Android

[Java] View plaincopyprint? Import java. Text. simpledateformat; Simpledateformat formatter = new simpledateformat ("mm DD, yyyy hh: mm: SS "); Date curdate = new date (system. currenttimemillis (); // obtain the current time String STR = formatter. Format (curdate ); Import Java. text. simpledateformat; </P> <p> simpledateformat formatter = new simpledateformat ("YYYY mm dd hh: mm: SS "); <br/> date curdate = new date (system. currenttimemillis (); // obtain the current time <br/> string STR = formatter. format (curdate); <br/>  You can obtain the current date and month, or write separately: [Java] View plaincopyprint? Simpledateformat sdateformat = new simpledateformat ("yyyy-mm-dd hh: mm: SS "); String date = sdateformat. Format (New java. util. Date ()); Simpledateformat sdateformat = new simpledateformat ("yyyy-mm-dd hh: mm: SS"); <br/> string date = sdateformat. format (New Java. util. date ());  If you want to obtain the current year and month, you can write it like this (only get the same time or second ): Java code [Java] View plaincopyprint? Simpledateformat SDF = new simpledateformat ("yyyy-mm "); String date = SDF. Format (New java. util. Date ()); Simpledateformat SDF = new simpledateformat ("yyyy-mm"); <br/> string date = SDF. Format (New java. util. Date (); <br/> Of course, you can also specify the time zone (to be ): [Java] View plaincopyprint? DF = dateformat. getdatetimeinstance (dateformat. Full, dateformat. Full, locale. China ); System. Out. println (DF. Format (new date ())); DF = dateformat. getdatetimeinstance (dateformat. Full, dateformat. Full, locale. China); <br/> system. Out. println (DF. Format (new date ()));

 

How to obtain whether the Android system is in the 24-hour or 12-hour format

[Java]
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1. Contentresolver CV = This. getcontentresolver ();
2. String strtimeformat = Android. provider. settings. system. getstring (CV,
3. Android. provider. settings. system. time_12_24 );
5. If (strtimeformat. Equals ("24 "))
6. {
7. Log. I ("activity", "24 ");
8. }

Contentresolver CV = This. getcontentresolver (); <br/> string strtimeformat = android. provider. settings. system. getstring (CV, <br/> android. provider. settings. system. time_12_24); </P> <p> If (strtimeformat. equals ("24") <br/>{< br/> log. I ("activity", "24"); <br/>} 

 

[Java]
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1. Calendar c = calendar. getinstance ();
2. Obtain the system date: year = C. Get (calendar. Year)
3. Month = C. GRT (calendar. month)
4. Day = C. Get (calendar. day_of_month)
5. Obtain the system time: hour = C. Get (calendar. hour_of_day );
6. Minute = C. Get (calendar. Minute)

Calendar c = calendar. getinstance (); <br/> system date: year = C. get (calendar. year) <br/> month = C. GRT (calendar. month) <br/> day = C. get (calendar. day_of_month) <br/> obtain the system time: hour = C. get (calendar. hour_of_day); <br/> minute = C. get (calendar. minute)

 

 

Obtain from calendar

[Java]
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1. Calendar c = calendar. getinstance ();
2. Obtain the system date: year = C. Get (calendar. Year)
3. Month = C. GRT (calendar. month)
4. Day = C. Get (calendar. day_of_month)
5. Obtain the system time: hour = C. Get (calendar. hour_of_day );
6. Minute = C. Get (calendar. Minute)
7. Calendar c = calendar. getinstance ();
8. Obtain the system date: year = C. Get (calendar. Year)
9. Month = C. GRT (calendar. month)
10. Day = C. Get (calendar. day_of_month)
11. Obtain the system time: hour = C. Get (calendar. hour_of_day );
12. Minute = C. Get (calendar. Minute)

Calendar c = calendar. getinstance (); <br/> system date: year = C. get (calendar. year) <br/> month = C. GRT (calendar. month) <br/> day = C. get (calendar. day_of_month) <br/> obtain the system time: hour = C. get (calendar. hour_of_day); <br/> minute = C. get (calendar. minute) <br/> calendar c = calendar. getinstance (); <br/> system date: year = C. get (calendar. year) <br/> month = C. GRT (calendar. month) <br/> day = C. get (calendar. day_of_month) <br/> obtain the system time: hour = C. get (calendar. hour_of_day); <br/> minute = C. get (calendar. minute)

 

 

Obtain with time

[Java]
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1. Time t = new time (); // or time t = new time ("GMT + 8"); plus the time zone information.
2. T. settonow (); // obtain the system time.
3. Int year = T. Year;
4. Int month = T. month;
5. Int date = T. monthday;
6. Int hour = T. hour; // 0-23
7. Int minute = T. minute;
8. Int second = T. Second;

Time t = new time (); // or time t = new time ("GMT + 8"); plus the time zone information. <Br/> T. settonow (); // obtain the system time. <Br/> int year = T. year; <br/> int month = T. month; <br/> int date = T. monthday; <br/> int hour = T. hour; // 0-23 <br/> int minute = T. minute; <br/> int second = T. second;

The only disadvantage is that the retrieval time is only in 24-hour mode.