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libre_gps_parser/lib/weather_forecast.dart

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import 'package:flutter/material.dart';
import 'global_helper_functions.dart';
import 'package:intl/intl.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'dart:convert';
class WeatherForeCast extends StatefulWidget {
final String weatherForeCast;
final int timeOffSet;
WeatherForeCast({
Key key,
this.weatherForeCast,
this.timeOffSet,
}) : super(key: key);
@override
_WeatherForeCastState createState() => _WeatherForeCastState();
}
class _WeatherForeCastState extends State<WeatherForeCast> {
final double textHeight = 1.5;
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@override
Widget build(BuildContext context) {
Map<String, dynamic> foreCastJson;
final double _deviceWidth = MediaQuery.of(context).size.width;
List<Container> createForeCast(List<dynamic> foreCastList) {
return foreCastList.map((foreCast) {
Map<String, String> foreCastTime =
get3WayTime(foreCast['dt'], widget.timeOffSet);
Column _conditions() {
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Text(
'Forecast: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
Text(
'${weatherConditions(foreCast['weather'][0]['description'])}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 18,
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Humidity: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
text: '${foreCast['main']['humidity']}%',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
],
);
}
Container _icon() {
return Container(
width: 100,
child: CachedNetworkImage(
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imageUrl:
'http://openweathermap.org/img/w/${foreCast['weather'][0]['icon']}.png',
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),
);
}
Column _wind() {
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Wind: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
text: '${foreCast['wind']['speed'].round()}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'mph',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text: ',',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text:
'${getKilometers(foreCast['wind']['speed'].toDouble())}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'kph',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text:
', ${getKnots(foreCast['wind']['speed'].toDouble())}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'knots',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'From: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
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text: '${foreCast['wind']['deg'].round()}\u00B0, ',
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style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text:
'(${getDirection(foreCast['wind']['deg'].round())})',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
],
),
),
],
);
}
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Column _temp() {
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
RichText(
// temp
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Temp: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
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text: '${foreCast['main']['temp'].round()}\u00B0',
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style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'F',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text:
', ${getCelcius(foreCast['main']['temp'].toDouble())}\u00B0',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'C',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
],
),
),
RichText(
// temp_min
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Min: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
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text: '${foreCast['main']['temp_min'].round()}\u00B0',
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style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'F',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text:
', ${getCelcius(foreCast['main']['temp_min'].toDouble())}\u00B0',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'C',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
],
),
),
RichText(
// temp_max
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Max: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
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text: '${foreCast['main']['temp_max'].round()}\u00B0',
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style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'F',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text:
', ${getCelcius(foreCast['main']['temp_max'].toDouble())}\u00B0',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'C',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
],
),
),
],
);
}
Column _time() {
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'There: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
text: '${foreCastTime['There']}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Here: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
text: '${foreCastTime['Here']}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'UTC: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
TextSpan(
text: '${foreCastTime['UTC']}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
],
);
}
Column _pressure() {
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Pressure: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: '${foreCast['main']['pressure']}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'mb',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text: ', ',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text:
'${getinHg(foreCast['main']['pressure'].toDouble())}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'inHg',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text: ',',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text:
'${getmmHg(foreCast['main']['pressure'].toDouble())}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'mmHg',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
],
),
),
],
);
}
Column _sea() {
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Sea Level: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: '${foreCast['main']['sea_level']}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'mb',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text: ', ',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text:
'${getinHg(foreCast['main']['sea_level'].toDouble())}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'inHg',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text: ',',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text:
'${getmmHg(foreCast['main']['sea_level'].toDouble())}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'mmHg',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
],
),
),
],
);
}
Column _ground() {
return Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: 'Ground Level: ',
style: TextStyle(
height: textHeight,
color: candyApple,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text: '${foreCast['main']['grnd_level']}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'mb',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text: ', ',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text:
'${getinHg(foreCast['main']['grnd_level'].toDouble())}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'inHg',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
TextSpan(
text: ',',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
],
),
),
RichText(
text: TextSpan(
children: <TextSpan>[
TextSpan(
text:
'${getmmHg(foreCast['main']['grnd_level'].toDouble())}',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
),
),
TextSpan(
text: 'mmHg',
style: TextStyle(
height: textHeight,
color: Colors.black,
fontSize: 16,
fontStyle: FontStyle.italic,
),
),
],
),
),
],
);
}
if (_deviceWidth < 400) {
return Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
width: 1.0,
color: Colors.black,
),
),
),
child: Column(
children: <Widget>[
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_icon(),
_conditions(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_time(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_temp(),
_wind(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_pressure(),
_sea(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_ground(),
],
),
),
],
),
);
} else if ((_deviceWidth >= 400) && (_deviceWidth < 650)) {
return Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
width: 1.0,
color: Colors.black,
),
),
),
child: Column(
children: <Widget>[
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_icon(),
_conditions(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_time(),
_temp(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_pressure(),
_sea(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_ground(),
_wind(),
],
),
),
],
),
);
} else if ((_deviceWidth >= 650) && (_deviceWidth < 1000)) {
return Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
width: 1.0,
color: Colors.black,
),
),
),
child: Column(
children: <Widget>[
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_icon(),
_conditions(),
_temp(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_time(),
_wind(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_pressure(),
_sea(),
_ground(),
],
),
),
],
),
);
} else if (_deviceWidth >= 1000) {
return Container(
decoration: BoxDecoration(
border: Border(
bottom: BorderSide(
width: 1.0,
color: Colors.black,
),
),
),
child: Column(
children: <Widget>[
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_icon(),
_conditions(),
_temp(),
_time(),
],
),
),
Padding(
padding: EdgeInsets.symmetric(vertical: 8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
_wind(),
_pressure(),
_sea(),
_ground(),
],
),
),
],
),
);
}
}).toList();
}
try {
foreCastJson = jsonDecode(widget.weatherForeCast);
return Container(
margin: EdgeInsets.symmetric(
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vertical: 3,
horizontal: 6,
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),
decoration: myBoxDecoration(ivory),
padding: EdgeInsets.all(5.0),
child: Column(
children: createForeCast(foreCastJson['list']),
),
);
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} catch (e) {
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return Container(
margin: EdgeInsets.symmetric(
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vertical: 3,
horizontal: 6,
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),
padding: myBoxPadding,
decoration: myBoxDecoration(ivory),
child: Wrap(
spacing: 20.0,
children: <Widget>[
Text(
'Pending...',
style: TextStyle(height: textHeight),
),
],
),
);
}
}
double getinHg(double mBar) {
return (mBar != null) ? ((mBar * 29.53).round() / 1000.0) : null;
}
double getmmHg(double mBar) {
return (mBar != null) ? ((mBar * 75.0062).round() / 100.0) : null;
}
int getKnots(double miles) {
return (miles != null) ? (miles * 0.8689).round() : null;
}
int getKilometers(double miles) {
return (miles != null) ? (miles * 1.60934).round() : null;
}
int getCelcius(double fahrenheit) {
return (fahrenheit != null) ? (((fahrenheit - 32) * 5) / 9).round() : null;
}
Map<String, String> get3WayTime(int secondsFromEpoch, int timeOffSet) {
DateTime utcTime =
DateTime.fromMillisecondsSinceEpoch(secondsFromEpoch * 1000).toUtc();
DateTime thereTime = utcTime.add(Duration(minutes: timeOffSet));
DateTime hereTime = utcTime.toLocal();
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String there = (timeOffSet != 2000)
? DateFormat('EEEE MMMM d, HH:mm').format(thereTime)
: 'UNKNOWN, INVALID';
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String here = DateFormat('EEEE MMMM d, HH:mm').format(hereTime);
String utc = DateFormat('EEEE MMMM d, HH:mm').format(utcTime);
return {
'There': there,
'Here': here,
'UTC': utc,
};
}
String getDirection(int direction) {
if ((direction < 22.5) || (direction >= 337.5)) {
return "N";
} else if ((direction >= 22.5) && (direction < 67.5)) {
return "NE";
} else if ((direction >= 67.5) && (direction < 112.5)) {
return "E";
} else if ((direction >= 112.5) && (direction < 157.5)) {
return "SE";
} else if ((direction >= 157.5) && (direction < 202.5)) {
return "S";
} else if ((direction >= 202.5) && (direction < 247.5)) {
return "SW";
} else if ((direction >= 247.5) && (direction < 292.5)) {
return "W";
} else if ((direction >= 292.5) && (direction < 337.5)) {
return "NW";
}
return "none";
}
}
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