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());    

如果想获取当前的年月,则可以这样写(只获取时间或秒种一样):

SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM");    String date=sdf.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)  

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利用Calendar获取

[java] view plain copy print?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)  

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利用Time获取

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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;  

唯一不足是取出时间只有24小时模式.