如何获得当前时间

How to get the current time in Android?

如何在Android中获得当前时间?

When i use

当我使用

int hours = java.sql.Time.this.getHours();

i get the error:

我得到了错误:

No enclosing instance of the type Time is accessible in scope

7 个解决方案

#1

int hours = new Time(System.currentTimeMillis()).getHours();

#2

Try this:

试试这个:

int hour = Calendar.getInstance().get(Calendar.HOUR_OF_DAY);

public static final int HOUR_OF_DAY Since: API Level 1 Field number for get and set indicating the hour of the day. HOUR_OF_DAY is used for the 24-hour clock. E.g., at 10:04:15.250 PM the HOUR_OF_DAY is 22.

公共静态最终int HOUR_OF_DAY Since: API级别1的get字段号，并设置为一天的小时数。小时/天用于24小时的时钟。例:在晚上10点15分25分，每天的小时数是22。

#3

My favorite sample:

我最喜欢的样本:

Time dtNow = new Time();
dtNow.setToNow();
int hours = dtNow.hour;
String lsNow = dtNow.format("%Y.%m.%d %H:%M");
String lsYMD = dtNow.toString();    // YYYYMMDDTHHMMSS

#4

If you just want the current timestamp, you can use:

如果您只想要当前时间戳，可以使用:

long millis = System.currentTimeMillis()

You can also get other time related values such as the uptime or total elapsed time since the last boot (including sleep time) from android.os.SystemClock.

您还可以从android.os.SystemClock获得与时间相关的其他值，例如自上一次引导(包括睡眠时间)以来的正常运行时间或总运行时间。

#5

The instance of the Calendar Class is set to the current date and time.

Calendar类的实例被设置为当前日期和时间。

#6

Just adding a little to Andrew's reply. The later part of the code increments the hour if your time zone is in daylight savings mode. The HOUR_OF_DAY is in 24 hour format.

只是给安德鲁的回复加一点。如果您的时区处于日光节约模式，代码的后面部分将增加小时数。工时/ of_day格式为24小时。

    Calendar currentTime    = Calendar.getInstance()                ;
    int hour                = currentTime.get(Calendar.HOUR_OF_DAY) ; 
    int minute              = currentTime.get(Calendar.MINUTE)      ;
    int second              = currentTime.get(Calendar.SECOND)      ;
    long milliDiff          = currentTime.get(Calendar.ZONE_OFFSET) ;
    // Got local offset, now loop through available timezone id(s).
    String [] ids           = TimeZone.getAvailableIDs()            ;
    for (String id : ids) 
            {
       TimeZone tz = TimeZone.getTimeZone(id)                   ;
       if (tz.getRawOffset() == milliDiff)
          {  // Found a match, now check for daylight saving
          boolean inDs    = tz.inDaylightTime(new Date())   ;
          if (inDs)       { hour += 1 ; }
          if (hour == 25) { hour  = 1 ; }
          break                                             ;
          }
        }

#7

Calendar cal = Calendar.getInstance(); // get current time in a Calendar

日历卡尔= Calendar.getInstance();//在日历中获取当前时间

then you can do lots with the Calendar instance, such as get the Hours or the Minutes - like:

然后你可以使用日历实例做很多事情，比如获取小时或分钟——比如:

int hour = cal.get(Calendar.HOUR_OF_DAY);

int小时= cal.get(Calendar.HOUR_OF_DAY);

This is recommended when you have to localize to many locales, and print data in multiple formats, or do operations on dates.

当您必须本地化到许多地区，并以多种格式打印数据，或者在日期上执行操作时，建议使用这种方法。

#1

int hours = new Time(System.currentTimeMillis()).getHours();

#2