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Avoid recreating DateFormats

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They only need to be created once. This should result in a minor
performance gain while building the folder views.
This commit is contained in:
Vishesh Handa
2020-03-19 15:23:30 +01:00
parent d5484502df
commit 2c361172c6
3 changed files with 14 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
lib/folder_views/journal_view.dart
View File

@ -14,6 +14,9 @@ class JournalView extends StatelessWidget {
final NotesFolder folder; final NotesFolder folder;
final String emptyText; final String emptyText;
static final _dateFormat = DateFormat('dd MMM, yyyy ');
static final _timeFormat = DateFormat('Hm');
JournalView({ JournalView({
@required this.folder, @required this.folder,
@required this.noteSelectedFunction, @required this.noteSelectedFunction,
@ -41,11 +44,8 @@ class JournalView extends StatelessWidget {
date = note.created; date = note.created;
} }
if (date != null) { if (date != null) {
var formatter = DateFormat('dd MMM, yyyy '); var dateStr = _dateFormat.format(date);
var dateStr = formatter.format(date); var time = _timeFormat.format(date);
var timeFormatter = DateFormat('Hm');
var time = timeFormatter.format(date);
var timeColor = textTheme.body1.color.withAlpha(100); var timeColor = textTheme.body1.color.withAlpha(100);

5
lib/folder_views/standard_view.dart
View File

@ -23,6 +23,8 @@ class StandardView extends StatelessWidget {
final StandardViewHeader headerType; final StandardViewHeader headerType;
final bool showSummary; final bool showSummary;
static final _dateFormat = DateFormat('dd MMM, yyyy');
StandardView({ StandardView({
@required this.folder, @required this.folder,
@required this.noteSelectedFunction, @required this.noteSelectedFunction,
@ -80,8 +82,7 @@ class StandardView extends StatelessWidget {
date = note.created; date = note.created;
} }
if (date != null) { if (date != null) {
var formatter = DateFormat('dd MMM, yyyy'); var dateStr = _dateFormat.format(date);
var dateStr = formatter.format(date);
trailing = Text(dateStr, style: textTheme.caption); trailing = Text(dateStr, style: textTheme.caption);
} }

9
lib/utils/datetime.dart
View File

@ -1,16 +1,19 @@
import 'dart:core'; import 'dart:core';
import 'package:intl/intl.dart'; import 'package:intl/intl.dart';
final _simpleDateFormat = DateFormat("yyyy-MM-dd-HH-mm-ss");
final _iso8601DateFormat = DateFormat("yyyy-MM-ddTHH:mm:ss");
String toSimpleDateTime(DateTime dt) { String toSimpleDateTime(DateTime dt) {
return DateFormat("yyyy-MM-dd-HH-mm-ss").format(dt); return _simpleDateFormat.format(dt);
} }
String toIso8601(DateTime dt) { String toIso8601(DateTime dt) {
return DateFormat("yyyy-MM-ddTHH:mm:ss").format(dt); return _iso8601DateFormat.format(dt);
} }
String toIso8601WithTimezone(DateTime dt, [Duration offset]) { String toIso8601WithTimezone(DateTime dt, [Duration offset]) {
var result = DateFormat("yyyy-MM-ddTHH:mm:ss").format(dt); var result = _iso8601DateFormat.format(dt);
offset = offset ?? dt.timeZoneOffset; offset = offset ?? dt.timeZoneOffset;
int minutes = (offset.inMinutes % 60); int minutes = (offset.inMinutes % 60);