Android change datetime

Question

i want to change datetime type for example dd.MM.yyyy i parsed json and i want to change datetime format. I wrote some code and able to change datetime format but time is always same,

for example 2.3.2014 this is a my code

Calendar cal = new GregorianCalendar();
    DateFormat df = new SimpleDateFormat("dd.MM.yyyy");
    String date = df.format(cal.getTime());

    String DateTimeTxt = itemList.get(MainActivity.KEY_pubDate);
    DateTimeTxt = date;

    DateTime.setText(DateTimeTxt);

what is a problem ?

score 2 · Answer 1 · answered Feb 03 '14 at 10:03

I tried with your code. It is ok for date format convertion, I think.

Calendar cal = new GregorianCalendar();
    SimpleDateFormat df = new SimpleDateFormat("dd.MM.yyyy");
    String date = df.format(cal.getTime());

    String DateTimeTxt = "2.3.2014";
    DateTimeTxt = date;

    ((TextView) findViewById(R.id.tv_date)).setText(DateTimeTxt);

The output is : 03.02.2014

So I think your problem is to get actual data on below line of your code :

String DateTimeTxt = itemList.get(MainActivity.KEY_pubDate);

Print this string and identify what you want and what you get.

thank you but i loged this String and also itemList.get(MainActivity.KEY_pubDate).please look at picture : (http://postimg.org/image/ygjgi6ym1/) Format Date Time always 03.02.2014 — user3233500, Feb 03 '14 at 10:16

abbas.aniefa · Answer 2 · 2014-02-03T10:31:26.667

1

Try like this.

   Calendar cal = new GregorianCalendar();
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        Date date = df.parse(itemList.get(MainActivity.KEY_pubDate));

        DateFormat df1 = new SimpleDateFormat("dd.MM.yyyy hh:mm:ss");
        DateTime.setText(df1.format(date));

You are formatting the current date but not the date you received from JSON.

edited Feb 03 '14 at 10:31

answered Feb 03 '14 at 09:48

abbas.aniefa

2,855
21
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i c changed but i have illegalArgumentExceptin – user3233500 Feb 03 '14 at 09:51
"itemList.get(MainActivity.KEY_pubDate)" what is the output of this? please print a log and check. – abbas.aniefa Feb 03 '14 at 09:58
i loged itemList.get(MainActivity.KEY_pubDate) and it is a right same as a json but when i try to change format i can only show same date. all news have a same time – user3233500 Feb 03 '14 at 10:08
Why there is letter 'T' between date and time? remove it and try above code. i have edited my code. – abbas.aniefa Feb 03 '14 at 10:32

score 0 · Answer 3 · answered Feb 03 '14 at 09:52

0

Calendar ctaq = Calendar.getInstance();
        ctaq.setTimeInMillis(ctaq.getTimeInMillis());
        SimpleDateFormat dfaq = new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss");
        String datetimestr = dfaq.format(ctaq.getTime());

Use this for change the format.Its working for me

answered Feb 03 '14 at 09:52

Deepak Jangir

580
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i changed code but i can format datetime but all datetime is same .i run project and all items' datetime is similar 2.3.2014 – user3233500 Feb 03 '14 at 09:58

score 0 · Answer 4 · edited May 23 '17 at 12:11

0

Just like time you can change you date in different format See here.

edited May 23 '17 at 12:11

Community

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1

answered Feb 03 '14 at 10:07

Sagar Shah

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Android change datetime

4 Answers4