SimpleDateFormat is not working in Android Kitkat

Question

This method is not working for Android Kitkat, but works in Android Oreo very well.

   public String parseDateToTime(String time) {

    String inputPattern = "dd/MM/yyyy hh:mm aa";
    String outputPattern = "hh:mm aa";
    SimpleDateFormat inputFormat = null;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        inputFormat = new SimpleDateFormat(inputPattern);
    }
    SimpleDateFormat outputFormat = null;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        outputFormat = new SimpleDateFormat(outputPattern);
    }

    Date date = null;
    String str = null;

    try {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            date = inputFormat.parse(time);
        }
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            str = outputFormat.format(date);
        }


    } catch (ParseException e) {
        e.printStackTrace();
    }
    Log.d("timecon",str);

Make sure you have imported this **`import java.text.SimpleDateFormat;`** instead of this **`import android.icu.text.SimpleDateFormat;`** — AskNilesh, Oct 12 '18 at 12:12
import android.icu.text.SimpleDateFormat I have use this one — kanaga, Oct 12 '18 at 12:16
You need to use this **`import java.text.SimpleDateFormat;`** check this https://stackoverflow.com/questions/39055963/simpledateformat-gives-api-error — AskNilesh, Oct 12 '18 at 12:17
You are always excluding KitKat. `inputFormat` and `outputFormat` are always null due to this condition `if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)` so the code will skip the try-except block — Lorenzo Vincenzi, Oct 12 '18 at 12:36
As an aside consider throwing away the long outmoded and notoriously troublesome `SimpleDateFormat` and friends, and adding [ThreeTenABP](https://github.com/JakeWharton/ThreeTenABP) to your Android project in order to use `java.time`, the modern Java date and time API. It is so much nicer to work with. — Ole V.V., Oct 13 '18 at 05:49

score 1 · Answer 1 · edited Oct 12 '18 at 17:20

1

The peace of code does not execute as your version check. Because Android Kitkat is older than android N (Nougat).

Build.VERSION.SDK_INT >= Build.VERSION_CODES.N.

It will be executed only N and above OS devices.

edited Oct 12 '18 at 17:20

Md. Zakir Hossain

1,082
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answered Oct 12 '18 at 13:47

Ramesh Yankati

1,197
9
13

arsalanelec · Answer 2 · 2018-10-12T14:57:38.290

1

in your code you used Build.VERSION_CODES.N that means Android Nougat, so when Android Kitkat is older than android N then Build.VERSION.SDK_INT >= Build.VERSION_CODES.N will not be true but because android Oreo is newer than android Nougat Build.VERSION.SDK_INT >= Build.VERSION_CODES.N will be true and your code in if block will work.

you can check this link to see android VERSION_CODES constants.

edited Oct 12 '18 at 14:57

answered Oct 12 '18 at 14:46

arsalanelec

258
3
9

SimpleDateFormat is not working in Android Kitkat

2 Answers2