How to parse String to Date in Android?

Question

I'm new to Android and I am having problem while parsing String to Date format. I am trying to retrieve data from Firebase and convert it to Date type.

I have used SimpleDateFormat to parse and its working fine normally. The problem arise only when I try to parse data from Firebase.

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                            Bundle savedInstanceState) {
       View view = inflater.inflate(R.layout.fragment_activity, container, false);
       calT = Calendar.getInstance();
       calD = Calendar.getInstance();
       try {
           today = new SimpleDateFormat("dd-MMM-yy", Locale.getDefault()).parse(stoday); // WORKING FINE
       } catch (ParseException e) {
           e.printStackTrace();
       } 
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {

                       for (DataSnapshot activitySnapshot : dataSnapshot.getChildren()) {
                           ActivityData activityData = activitySnapshot.getValue(ActivityData.class);
                           DateOfEvent = String.valueOf(activitySnapshot.child("dateOfEvent").getValue());
                           try {
                               date1 = new SimpleDateFormat("dd/MMM/yy",Locale.getDefault()).parse(DateOfEvent); //RETURNS NULL
                           } catch (ParseException e) {
                               e.printStackTrace();
                           }

I expect the code to return Date, but it returns NULL. Thanks.

This code may help SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy"); Date d = dateFormat.parse(datestring) — AmeeJoshi, Jun 14 '19 at 07:43

Mini Chip · Answer 1 · 2019-06-20T18:31:03.877

0

You need to provide the format in which you are receiving date from firebase . In order to convert string to date use the below function :

public static Date getDateFromString(String dateText, String fromFormat) {
    Date date = new Date();
    SimpleDateFormat dateFormat = new SimpleDateFormat(fromFormat, Locale.getDefault());
    try {
        date = dateFormat.parse(dateText);
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return date;
}

Just make sure you are passing the correct date format .

edited Jun 20 '19 at 18:31

answered Jun 14 '19 at 07:44

Mini Chip

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I have set date1= getDateFromString(DateofEvent, "dd-MMM-YY"), but It returns the current date only. – Naveen Jun 20 '19 at 16:32
what exactly is your DateofEvent value? – Mini Chip Jun 20 '19 at 17:17
"01-Jan-62" is my value – Naveen Jun 20 '19 at 17:23
Please check the screen shot – Mini Chip Jun 20 '19 at 18:31
date1 = getDateFromString(DateOfEvent, "dd-MM-yy");...............In debugger, DateOfEvent: 01-Jan-62, date1 : Sat Jun 22 09:41:11 GMT+05:30 2019 – Naveen Jun 22 '19 at 04:12

How to parse String to Date in Android?

1 Answers1