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解析android中系统日期时间的获取


 

import    java.text.SimpleDateFormat;     

SimpleDateFormat formatter = new SimpleDateFormat ("yyyy年MM月dd日 HH:mm:ss ");
Date curDate = new Date(System.currentTimeMillis());//获取当前时间
String str = formatter.format(curDate);

 可以获取当前的年月时分,也可以分开写:

SimpleDateFormat    sDateFormat    =   new    SimpleDateFormat("yyyy-MM-dd    hh:mm:ss");     
String date = sDateFormat.format(new java.util.Date());

 当然还有就是可以指定时区的时间(待):

df=DateFormat.getDateTimeInstance(DateFormat.FULL,DateFormat.FULL,Locale.CHINA);
System.out.println(df.format(new Date()));

如何获取Android系统时间是24小时制还是12小时制

ContentResolver cv = this.getContentResolver();
String strTimeFormat = android.provider.Settings.System.getString(cv,
android.provider.Settings.System.TIME_12_24);

if(strTimeFormat.equals("24"))
{
Log.i("activity","24");
}


Calendar c = Calendar.getInstance();
取得系统日期:year = c.get(Calendar.YEAR)
month = c.grt(Calendar.MONTH)
day = c.get(Calendar.DAY_OF_MONTH)
取得系统时间:hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE)

 利用Calendar获取

Calendar c = Calendar.getInstance();
取得系统日期:year = c.get(Calendar.YEAR)
month = c.grt(Calendar.MONTH)
day = c.get(Calendar.DAY_OF_MONTH)
取得系统时间:hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE)
Calendar c = Calendar.getInstance();
取得系统日期:year = c.get(Calendar.YEAR)
month = c.grt(Calendar.MONTH)
day = c.get(Calendar.DAY_OF_MONTH)
取得系统时间:hour = c.get(Calendar.HOUR_OF_DAY);
minute = c.get(Calendar.MINUTE)

 利用Time获取

Time t=new Time(); // or Time t=new Time("GMT+8"); 加上Time Zone资料。
t.setToNow(); // 取得系统时间。
int year = t.year;
int month = t.month;
int date = t.monthDay;
int hour = t.hour; // 0-23
int minute = t.minute;
int second = t.second;

 ​​Android Calendar获取年月日时分秒毫秒​​

int month = (date.get(Calendar.MONTH))+1;
int day = date.get(Calendar.DAY_OF_MONTH);

Calendar CD = Calendar.getInstance();
int YY = CD.get(Calendar.YEAR) ;
int MM = CD.get(Calendar.MONTH)+1;
int DD = CD.get(Calendar.DATE);
int HH = CD.get(Calendar.HOUR);
int NN = CD.get(Calendar.MINUTE);
int SS = CD.get(Calendar.SECOND);
int MI = CD.get(Calendar.MILLISECOND);

Calendar cal = Calendar.getInstance();

//当前年
int year = cal.get(Calendar.YEAR);
//当前月
int month = (cal.get(Calendar.MONTH))+1;
//当前月的第几天:即当前日
int day_of_month = cal.get(Calendar.DAY_OF_MONTH);
//当前时:HOUR_OF_DAY-24小时制;HOUR-12小时制
int hour = cal.get(Calendar.HOUR_OF_DAY);
//当前分
int minute = cal.get(Calendar.MINUTE);
//当前秒
int second = cal.get(Calendar.SECOND);
//0-上午;1-下午
int ampm = cal.get(Calendar.AM_PM);
//当前年的第几周
int week_of_year = cal.get(Calendar.WEEK_OF_YEAR);
//当前月的第几周
int week_of_month = cal.get(Calendar.WEEK_OF_MONTH);
//当前年的第几天
int day_of_year = cal.get(Calendar.DAY_OF_YEAR);

 

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