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.util.Log;
11 import android.widget.DatePicker;
12 import android.widget.TextView;
14 import java.util.Calendar;
15 import java.util.GregorianCalendar;
16 import java.util.Locale;
17 import java.util.Objects;
18 import java.util.regex.Matcher;
19 import java.util.regex.Pattern;
21 public class DatePickerFragment extends AppCompatDialogFragment
22 implements DatePickerDialog.OnDateSetListener, DatePicker.OnDateChangedListener
26 public Dialog onCreateDialog(Bundle savedInstanceState) {
27 final Calendar c = GregorianCalendar.getInstance();
28 int year = c.get(GregorianCalendar.YEAR);
29 int month = c.get(GregorianCalendar.MONTH);
30 int day = c.get(GregorianCalendar.DAY_OF_MONTH);
31 TextView date = Objects.requireNonNull(getActivity()).findViewById(R.id.new_transaction_date);
33 CharSequence present = date.getText();
35 Pattern re_mon_day = Pattern.compile("^\\s*(\\d+)\\s*/\\s*(\\d+)\\s*$");
36 Matcher m_mon_day = re_mon_day.matcher(present);
38 if (m_mon_day.matches()) {
39 month = Integer.parseInt(m_mon_day.group(1))-1;
40 day = Integer.parseInt(m_mon_day.group(2));
43 Pattern re_day = Pattern.compile("^\\s*(\\d{1,2})\\s*$");
44 Matcher m_day = re_day.matcher(present);
45 if (m_day.matches()) {
46 day = Integer.parseInt(m_day.group(1));
50 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));
72 TextView description = Objects.requireNonNull(getActivity())
73 .findViewById(R.id.new_transaction_description);
74 description.requestFocus();
78 public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
79 TextView date = Objects.requireNonNull(getActivity()).findViewById(R.id.new_transaction_date);
81 final Calendar c = GregorianCalendar.getInstance();
82 if ( c.get(GregorianCalendar.YEAR) == year && c.get(GregorianCalendar.MONTH) == monthOfYear) {
83 date.setText(String.format(Locale.US, "%d", dayOfMonth));
86 date.setText(String.format(Locale.US, "%d/%d", monthOfYear+1, dayOfMonth));
89 TextView description = Objects.requireNonNull(getActivity())
90 .findViewById(R.id.new_transaction_description);
91 description.requestFocus();