forked from SelfPrivacy/selfprivacy.org.app
87 lines
1.9 KiB
Dart
87 lines
1.9 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:selfprivacy/ui/components/brand_text/brand_text.dart';
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import 'package:selfprivacy/utils/named_font_weight.dart';
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class BrandTimer extends StatefulWidget {
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const BrandTimer({
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Key key,
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@required this.startDateTime,
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@required this.duration,
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}) : super(key: key);
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final DateTime startDateTime;
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final Duration duration;
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@override
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_BrandTimerState createState() => _BrandTimerState();
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}
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class _BrandTimerState extends State<BrandTimer> {
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String _timeString;
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Timer timer;
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@override
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void initState() {
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_timerStart();
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super.initState();
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}
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_timerStart() {
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_timeString = diffenceFromStart;
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timer = Timer.periodic(Duration(seconds: 1), (Timer t) {
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var timePassed = DateTime.now().difference(widget.startDateTime);
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if (timePassed > widget.duration) {
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t.cancel();
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} else {
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_getTime();
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}
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});
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}
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@override
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void didUpdateWidget(BrandTimer oldWidget) {
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if (timer.isActive) {
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timer.cancel();
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}
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_timerStart();
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super.didUpdateWidget(oldWidget);
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}
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@override
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Widget build(BuildContext context) {
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return BrandText.medium(
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_timeString,
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style: TextStyle(
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fontWeight: NamedFontWeight.demiBold,
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),
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);
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}
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void _getTime() {
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setState(() {
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_timeString = diffenceFromStart;
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});
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}
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String get diffenceFromStart =>
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_durationToString(DateTime.now().difference(widget.startDateTime));
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String _durationToString(Duration duration) {
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String twoDigits(int n) => n.toString().padLeft(2, "0");
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String twoDigitSeconds =
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twoDigits(widget.duration.inSeconds - duration.inSeconds.remainder(60));
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return "$twoDigitSeconds cек";
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}
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@override
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void dispose() {
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if (timer.isActive) {
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timer.cancel();
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}
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super.dispose();
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}
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}
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