android-date

问题 I am having trouble with a DatePickerDialog , everytime I open it shows the current date not the date I set previously. Here's my code: final Calendar c = Calendar.getInstance(); final int mYear = c.get(Calendar.YEAR); final int mMonth = c.get(Calendar.MONTH); final int mDay = c.get(Calendar.DAY_OF_MONTH); DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() { // when dialog box is closed, below method will be called. public void onDateSet

问题 Here's my onCreateDialog : DatePickerDialog dialog = new DatePickerDialog(this, dpickerListener, year_x, month_x, day_x); dialog.getDatePicker().setMinDate(System.currentTimeMillis() - 1000); dialog.getDatePicker().setMaxDate(); As you can see, setMaxDate() is empty. I want to set the max date of the datePickerDialog to one month after the current date. Here's how I get the current date: cal2 = Calendar.getInstance(); currentDay = cal2.get(Calendar.DAY_OF_MONTH); currentMonth = cal2.get

问题 Ok, so I've created a function to show the number of days until a date in the future... It is correct until the amount of days is over 9 days.. if over it seems to show a random number of days... Please see my code below: public String daysTillExpire() { String daysLeft = ""; int position = 0 ; String inputDateString = UIDM.get(position).date; Calendar calCurr = Calendar.getInstance(); Calendar day = Calendar.getInstance(); try { day.setTime(new SimpleDateFormat("dd-MM-yyyy").parse

问题 Suppose that my server located in USA and I live in Russia. We know that they have different time zones. My application getting text( String ) from server. And this text data has Date column in database to keep record date. When I get data, I also get date knowledge. So I can group them by time. First ones at the top and last ones at the bottom. Whatever... I wrote a function to show date value more human-readable such as "13 hours", "9 minutes". Server sends me the date in server's (USA)

问题 I'm developing an app in which I'm saving the date and time in Firebase and then retrieving it for the user to see. What I want is I want user to see that time and date according to their local timezone. for ex - if the time and date saved in database is '2:07 PM' and 'Fri, Jun 24', then to the users in PST timezone, it should be shown as '1:37 AM' and 'Fri, Jun 24'. Here's how I'm getting time and date: DateFormat currentTime = new SimpleDateFormat("h:mm a"); final String time = currentTime

问题 I have date array. For example 10 dates. I need calculate each date - it is this week or last week. How do make this? private List<Receipt> getSectionPosition(List<Receipt> receiptList){ List<Receipt> list = new ArrayList<>(); Date now = new Date(); for (int i = 0; i<receiptList.size(); i++){ if (receiptList.get(i).getCreatedDate().compareTo(now)==0){ list.add(receiptList.get(i)); } } return list; } i pass List<Receipt> and if receipt has date on this week i add it in new list. but it is not

问题 I have a date in String an I using this: SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm"); dataUltima = sdf.format(sdf); to format the date. But this method return the actual date of system. How can I only format the date without change the date. Obs. I'm getting this date from a server, it come to me yyy-dd-MM and I want it dd/MM/yyyy 回答1: I am not sure what is your problem. Try it. Maybe help. String server_format = "2013-01-02"; //server comes format ? SimpleDateFormat sdf =

问题 How to get all dates between two dates in Android. For example. I have two Strings. String first="2012-07-15"; String second="2012-07-21"; I convert and get dates from these strings. DateFormat df1 = new SimpleDateFormat("yyyy-MM-dd"); DateFormat df2 = new SimpleDateFormat("MMM dd"); String mydate = df2.format(df1.parse(first)); This way I get both dates from first and second String. Now I also display all dates between these two dates. 回答1: it is better not to use any hardcoded values in

问题 I have problem formating date. From : EEE, d MMM yyyy HH:mm:ss Z (example : Mon, 05 Jan 2014 15:10:00 +0200) To : dd/MMM/yyyy HH:mm (example : 05/01/2014 15:10) Here is what i tried : private String formatDate(String date) { SimpleDateFormat format = new SimpleDateFormat("dd/MMM/yyyy HH:mm"); Date dateResult = null; try { dateResult = format.parse(date); } catch (java.text.ParseException e) { Log.e(TAG, "", e); } return dateResult.toString(); } I get exception : unparseable date at offset 0

问题 Im trying to format a Date to String using SimpleDateFormat , and the pattern im using is this one "yyyy-MM-dd'T'HH:mm:ss.SSSxxx" but when reach this line SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSxxx"); i get the following exception: java.lang.IllegalArgumentException: Unknown pattern character 'x' at java.text.SimpleDateFormat.validatePatternCharacter(SimpleDateFormat.java:323) at java.text.SimpleDateFormat.validatePattern(SimpleDateFormat.java:312) at java.text