如何在Android中格式化日期和时间？

本文翻译自：How to format date and time in Android?

当具有年，月，日，小时和分钟时，如何根据设备配置日期和时间正确格式化？

#1楼

参考：https://stackoom.com/question/1uBf/如何在Android中格式化日期和时间

#2楼

Use these two as a class variables: 使用以下两个作为类变量：

 public java.text.DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy"); private Calendar mDate = null;

And use it like this: 并像这样使用它：

 mDate = Calendar.getInstance(); mDate.set(year,months,day);                    dateFormat.format(mDate.getTime());

#3楼

Use SimpleDateFormat 使用SimpleDateFormat

Like this: 像这样：

event.putExtra("starttime", "12/18/2012");SimpleDateFormat format = new SimpleDateFormat("MM/dd/yyyy");Date date = format.parse(bundle.getString("starttime"));

#4楼

Use build in Time class! 使用内置的Time类！

Time time = new Time();time.set(0, 0, 17, 4, 5, 1999);Log.i("DateTime", time.format("%d.%m.%Y %H:%M:%S"));

#5楼

The android Time class provides 3 formatting methods http://developer.android.com/reference/android/text/format/Time.html android时间类提供3种格式化方法http://developer.android.com/reference/android/text/format/Time.html

This is how I did it: 这是我的方法：

/*** This method will format the data from the android Time class (eg. myTime.setToNow())   into the format* Date: dd.mm.yy Time: hh.mm.ss*/private String formatTime(String time){    String fullTime= "";    String[] sa = new String[2];    if(time.length()>1)    {        Time t = new Time(Time.getCurrentTimezone());        t.parse(time);        // or t.setToNow();        String formattedTime = t.format("%d.%m.%Y %H.%M.%S");        int x = 0;        for(String s : formattedTime.split("\\s",2))        {               System.out.println("Value = " + s);            sa[x] = s;            x++;        }        fullTime = "Date: " + sa[0] + " Time: " + sa[1];    }    else{        fullTime = "No time data";    }    return fullTime;}

I hope thats helpful :-) 希望对您有所帮助:-)

#6楼

I use it like this: 我这样使用它：

public class DateUtils {    static DateUtils instance;    private final DateFormat dateFormat;    private final DateFormat timeFormat;    private DateUtils() {        dateFormat = android.text.format.DateFormat.getDateFormat(MainApplication.context);        timeFormat = android.text.format.DateFormat.getTimeFormat(MainApplication.context);    }    public static DateUtils getInstance() {        if (instance == null) {            instance = new DateUtils();        }        return instance;    }    public synchronized static String formatDateTime(long timestamp) {        long milliseconds = timestamp * 1000;        Date dateTime = new Date(milliseconds);        String date = getInstance().dateFormat.format(dateTime);        String time = getInstance().timeFormat.format(dateTime);        return date + " " + time;    }}

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