1 package net.ktnx.mobileledger;
3 import android.annotation.TargetApi;
4 import android.app.DatePickerDialog;
5 import android.app.Dialog;
6 import android.os.Build;
7 import android.os.Bundle;
8 import android.support.annotation.NonNull;
9 import android.support.v7.app.AppCompatDialogFragment;
10 import android.widget.DatePicker;
11 import android.widget.TextView;
13 import java.util.Calendar;
14 import java.util.GregorianCalendar;
15 import java.util.Locale;
16 import java.util.Objects;
17 import java.util.regex.Matcher;
18 import java.util.regex.Pattern;
20 public class DatePickerFragment extends AppCompatDialogFragment
21 implements DatePickerDialog.OnDateSetListener, DatePicker.OnDateChangedListener
25 public Dialog onCreateDialog(Bundle savedInstanceState) {
26 final Calendar c = GregorianCalendar.getInstance();
27 int year = c.get(GregorianCalendar.YEAR);
28 int month = c.get(GregorianCalendar.MONTH);
29 int day = c.get(GregorianCalendar.DAY_OF_MONTH);
30 TextView date = Objects.requireNonNull(getActivity()).findViewById(R.id.new_transaction_date);
32 CharSequence present = date.getText();
34 Pattern re_mon_day = Pattern.compile("^\\s*(\\d+)\\s*/\\s*(\\d+)\\s*$");
35 Matcher m_mon_day = re_mon_day.matcher(present);
37 if (m_mon_day.matches()) {
38 month = Integer.parseInt(m_mon_day.group(1))-1;
39 day = Integer.parseInt(m_mon_day.group(2));
42 Pattern re_day = Pattern.compile("^\\s*(\\d{1,2})\\s*$");
43 Matcher m_day = re_day.matcher(present);
44 if (m_day.matches()) {
45 day = Integer.parseInt(m_day.group(1));
49 DatePickerDialog dpd = new DatePickerDialog(Objects.requireNonNull(getActivity()), this, year, month, day);
51 // quicker date selection available in API 26
52 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
53 DatePicker dp = dpd.getDatePicker();
54 dp.setOnDateChangedListener(this);
60 @TargetApi(Build.VERSION_CODES.O)
61 public void onDateSet(DatePicker view, int year, int month, int day) {
62 TextView date = Objects.requireNonNull(getActivity()).findViewById(R.id.new_transaction_date);
64 final Calendar c = GregorianCalendar.getInstance();
65 if ( c.get(GregorianCalendar.YEAR) == year && c.get(GregorianCalendar.MONTH) == month) {
66 date.setText(String.format(Locale.US, "%d", day));
69 date.setText(String.format(Locale.US, "%d/%d", month+1, day));
74 public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
75 TextView date = Objects.requireNonNull(getActivity()).findViewById(R.id.new_transaction_date);
77 final Calendar c = GregorianCalendar.getInstance();
78 if ( c.get(GregorianCalendar.YEAR) == year && c.get(GregorianCalendar.MONTH) == monthOfYear) {
79 date.setText(String.format(Locale.US, "%d", dayOfMonth));
82 date.setText(String.format(Locale.US, "%d/%d", monthOfYear+1, dayOfMonth));