2 * Copyright © 2019 Damyan Ivanov.
3 * This file is part of Mobile-Ledger.
4 * Mobile-Ledger is free software: you can distribute it and/or modify it
5 * under the term of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your opinion), any later version.
9 * Mobile-Ledger is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License terms for details.
14 * You should have received a copy of the GNU General Public License
15 * along with Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
18 package net.ktnx.mobileledger.ui;
20 import android.annotation.TargetApi;
21 import android.app.DatePickerDialog;
22 import android.app.Dialog;
23 import android.os.Build;
24 import android.os.Bundle;
25 import android.support.annotation.NonNull;
26 import android.support.v7.app.AppCompatDialogFragment;
27 import android.widget.DatePicker;
28 import android.widget.TextView;
30 import net.ktnx.mobileledger.R;
32 import java.util.Calendar;
33 import java.util.GregorianCalendar;
34 import java.util.Locale;
35 import java.util.Objects;
36 import java.util.regex.Matcher;
37 import java.util.regex.Pattern;
39 public class DatePickerFragment extends AppCompatDialogFragment
40 implements DatePickerDialog.OnDateSetListener, DatePicker.OnDateChangedListener {
41 static final Pattern reYMD = Pattern.compile("^\\s*(\\d+)\\d*/\\s*(\\d+)\\s*/\\s*(\\d+)\\s*$");
42 static final Pattern reMD = Pattern.compile("^\\s*(\\d+)\\s*/\\s*(\\d+)\\s*$");
43 static final Pattern reD = Pattern.compile("\\s*(\\d+)\\s*$");
46 public Dialog onCreateDialog(Bundle savedInstanceState) {
47 final Calendar c = GregorianCalendar.getInstance();
48 int year = c.get(GregorianCalendar.YEAR);
49 int month = c.get(GregorianCalendar.MONTH);
50 int day = c.get(GregorianCalendar.DAY_OF_MONTH);
52 Objects.requireNonNull(getActivity()).findViewById(R.id.new_transaction_date);
54 CharSequence present = date.getText();
56 Matcher m = reYMD.matcher(present);
58 year = Integer.parseInt(m.group(1));
59 month = Integer.parseInt(m.group(2)) - 1; // month is 0-based
60 day = Integer.parseInt(m.group(3));
63 m = reMD.matcher(present);
65 month = Integer.parseInt(m.group(1)) - 1;
66 day = Integer.parseInt(m.group(2));
69 m = reD.matcher(present);
71 day = Integer.parseInt(m.group(1));
76 DatePickerDialog dpd =
77 new DatePickerDialog(Objects.requireNonNull(getActivity()), this, year, month, day);
78 // quicker date selection available in API 26
79 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
80 DatePicker dp = dpd.getDatePicker();
81 dp.setOnDateChangedListener(this);
87 @TargetApi(Build.VERSION_CODES.O)
88 public void onDateSet(DatePicker view, int year, int month, int day) {
90 Objects.requireNonNull(getActivity()).findViewById(R.id.new_transaction_date);
92 final Calendar c = GregorianCalendar.getInstance();
93 if (c.get(GregorianCalendar.YEAR) == year) {
94 if (c.get(GregorianCalendar.MONTH) == month)
95 date.setText(String.format(Locale.US, "%d", day));
96 else date.setText(String.format(Locale.US, "%d/%d", month + 1, day));
98 else date.setText(String.format(Locale.US, "%d/%d/%d", year, month + 1, day));
100 TextView description = Objects.requireNonNull(getActivity())
101 .findViewById(R.id.new_transaction_description);
102 description.requestFocus();
106 public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
108 Objects.requireNonNull(getActivity()).findViewById(R.id.new_transaction_date);
110 final Calendar c = GregorianCalendar.getInstance();
111 if (c.get(GregorianCalendar.YEAR) == year) {
112 if (c.get(GregorianCalendar.MONTH) == monthOfYear) {
113 date.setText(String.format(Locale.US, "%d", dayOfMonth));
116 date.setText(String.format(Locale.US, "%d/%d", monthOfYear + 1, dayOfMonth));
119 else date.setText(String.format(Locale.US, "%d/%d/%d", year, monthOfYear + 1, dayOfMonth));
121 TextView description = Objects.requireNonNull(getActivity())
122 .findViewById(R.id.new_transaction_description);
123 description.requestFocus();