36 lines
1.1 KiB
Dart
36 lines
1.1 KiB
Dart
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import 'dart:io' show File, FileMode;
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import 'package:intl/intl.dart' show DateFormat;
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import 'package:gps/models/gps_point.dart';
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abstract class GpsPersister {
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void save(Iterable<GpsPoint> data);
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}
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class CsvGpsPersister implements GpsPersister {
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static const String _csvHeader =
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"#Time, Latitude, Longitude, Accuracy, Speed, Heading";
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/// Format of DateTime part of file name
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static final DateFormat _formatter = DateFormat('yyyyMMdd_HHmmss');
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/// Path where the CSV will be stored
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final String _rootDir;
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const CsvGpsPersister(this._rootDir);
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@override
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void save(Iterable<GpsPoint> points) {
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File file = File("$_rootDir/geo${_formatter.format(DateTime.now())}.csv");
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file.writeAsStringSync(_csvHeader);
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for (var point in points) {
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file.writeAsStringSync("\n${_toCsv(point)}",
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mode: FileMode.writeOnlyAppend);
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}
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file.writeAsString("\n", mode: FileMode.writeOnlyAppend, flush: true);
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}
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String _toCsv(GpsPoint p) =>
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"${p.time}, ${p.latitude}, ${p.longitude}, ${p.accuracy}, ${p.speed}, ${p.heading}";
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}
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