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Added leap year instruction page

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This commit is contained in:
BroodjeAap 2020-12-21 17:12:12 +01:00
parent 5942ec9a73
commit 6e9f476017
2 changed files with 135 additions and 1 deletions
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3
lib/main.dart
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@ -7,6 +7,7 @@ import 'package:ohthatsa/pages/practice/PracticePage.dart';
import 'package:ohthatsa/pages/MonthValuesPage.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:ohthatsa/pages/practice/instructions/LeapInstructionPage.dart';
import 'package:ohthatsa/pages/practice/instructions/MonthInstructionPage.dart';
import 'package:ohthatsa/pages/practice/instructions/YearInstructionPage.dart';
import 'package:ohthatsa/pages/practice/instructions/CenturyInstructionPage.dart';
@ -140,7 +141,7 @@ class RouteGenerator {
return MaterialPageRoute(builder: (context) => CenturyInstructionPage());
}
case "/instructions/leap": {
return MaterialPageRoute(builder: (context) => YearInstructionPage());
return MaterialPageRoute(builder: (context) => LeapInstructionPage());
}
case "/instructions/mod": {
return MaterialPageRoute(builder: (context) => YearInstructionPage());

133
lib/pages/practice/instructions/LeapInstructionPage.dart Normal file
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@ -0,0 +1,133 @@
import 'package:flutter/material.dart';
import 'package:numberpicker/numberpicker.dart';
import 'package:ohthatsa/other/AppDrawer.dart';
import 'package:ohthatsa/util/DayCalculator.dart';
import 'package:ohthatsa/util/Months.dart';
class LeapInstructionPage extends StatefulWidget {
@override
_LeapInstructionPageState createState() => _LeapInstructionPageState();
}
class _LeapInstructionPageState extends State<LeapInstructionPage> {
int year;
bool isLeapYear;
bool divBy4;
bool divBy100;
bool divBy400;
@override
void initState(){
super.initState();
this.setYear(DateTime.now().year);
}
void setYear(int newYear){
year = newYear;
isLeapYear = DayCalculator.isLeapYear(year);
divBy4 = (year % 4) == 0;
divBy100 = (year % 100) == 0;
divBy400 = (year % 400) == 0;
setState(() {});
}
static const textStyle = TextStyle(
fontSize: 20
);
static const pageNum = TextStyle(
color: Colors.grey,
fontSize: 20
);
static const pageNumCurrent = TextStyle(
color: Colors.blue,
fontSize: 20
);
@override
Widget build(BuildContext context){
return Scaffold(
drawer: AppDrawer(),
appBar: AppBar(
title: Text("Leap Year Instructions")
),
body: PageView(
children: <Widget>[
Container(
padding: EdgeInsets.fromLTRB(0, 50, 0, 10),
child:Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text("A year is a leap year if...", style: textStyle),
Text("It is divisible by 4, unless...", style: textStyle),
Text("It's also divisible by 100, unless...", style: textStyle),
Text("It's divisible by 400", style: textStyle),
Spacer(),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text("1", style: pageNumCurrent),
Text(" - ", style: pageNum),
Text("2", style: pageNum),
],
)
]
)
),
Container(
padding: EdgeInsets.fromLTRB(0, 50, 0, 10),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
NumberPicker.integer(
initialValue: year,
minValue: 0,
maxValue: 10000,
onChanged: (newYear) => { this.setYear(newYear) }
),
Visibility(
visible: divBy4,
child: Text(year.toString() + " is divisible by 4", style: textStyle)
),
Visibility(
visible: divBy100,
child: Column(
children: <Widget>[
Text("But...", style: textStyle),
Text(year.toString() + " is also divisible by 100", style: textStyle)
],
)
),
Visibility(
visible: divBy400,
child: Column(
children: <Widget>[
Text("But...", style: textStyle),
Text(year.toString() + " is also divisible by 400", style: textStyle)
],
)
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text("So " + year.toString() + " is", style: textStyle),
Text(this.isLeapYear ? " " : " not ", style: textStyle),
Text("a leap year", style: textStyle)
],
),
Spacer(),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text("1", style: pageNum),
Text(" - ", style: pageNum),
Text("2", style: pageNumCurrent),
],
)
],
)
)
]
)
);
}
}