Java convert timestamp object to date format

Question

In my Android app, I'm showing an List<Object>, it contains String, int and Timestamp values, and I don't know which item is the Timestamp one.
Now it appears like this: Timestamp(seconds=1556208432, nanoseconds=754000000)

What I wanna do is parse this into a readable Date format.
Here's the code I tried:

TextView t2 = view.findViewById(android.R.id.text2);
String tS2 = String.valueOf(values.get(position));

if(tS2.contains("Timestamp(seconds=")) {
    long ts = Timestamp.parse(tS2);
    Date date = new Date(ts);
    Log.d(TAG, "date: "+date);
} else {
    t2.setText(tS2);
}

And parse it with SimpleDateFormat, like this:

String myFormat = "yyyy MMM dd";
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.ENGLISH);
t2.setText(sdf.format(something));

I get this error:

java.lang.IllegalArgumentException at java.util.Date.parse

EDIT1:

It dies with the error below when it gets to the Date part.

Object time = values.get(position);
com.google.firebase.Timestamp ts = (com.google.firebase.Timestamp) time;
String str = ts.toString();
Date date = new Date(Long.parseLong(str));

java.lang.NumberFormatException: For input string: "Timestamp(seconds=1556208432, nanoseconds=754000000)"

Which line throws the error?

matanper
– matanper

2019-04-25 16:37:47 +00:00
Commented Apr 25, 2019 at 16:37 — matanper
– matanper, Commented Apr 25, 2019 at 16:37
@matanper Updated my question

Máté Antal
– Máté Antal

2019-04-25 16:38:42 +00:00
Commented Apr 25, 2019 at 16:38 — Máté Antal
– Máté Antal, Commented Apr 25, 2019 at 16:38

Rene Ferrari · Accepted Answer · 2019-04-25 16:47:27Z

1

You are converting the timestamp to string which will not convert the value it's holding to string but describe the object itself.

To get the date of the Firebase timestamp just call toDate() on it.

For more info check this out

answered Apr 25, 2019 at 16:47

Rene Ferrari

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