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Made the grid size adjustable (default is 12x12)

main
Lachfrosch 2024-05-08 16:05:52 +02:00
parent cfb929afac
commit c3dbf3034e
1 changed files with 19 additions and 8 deletions
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27
lib/main.dart
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@ -7,6 +7,7 @@ void main() {
class MyApp extends StatelessWidget { class MyApp extends StatelessWidget {
const MyApp({super.key}); const MyApp({super.key});
final int gridSize = 12;
// This widget is the root of your application. // This widget is the root of your application.
@override @override
@ -32,13 +33,13 @@ class MyApp extends StatelessWidget {
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple), colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true, useMaterial3: true,
), ),
home: const MyHomePage(title: 'Flutter Demo Home Page'), home: const MyHomePage(title: 'Flutter Demo Home Page', gridSize: 12),
); );
} }
} }
class MyHomePage extends StatefulWidget { class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title}); const MyHomePage({super.key, required this.title, required this.gridSize});
// This widget is the home page of your application. It is stateful, meaning // This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect // that it has a State object (defined below) that contains fields that affect
@ -50,15 +51,25 @@ class MyHomePage extends StatefulWidget {
// always marked "final". // always marked "final".
final String title; final String title;
final int gridSize;
@override @override
State<MyHomePage> createState() => _MyHomePageState(); State<MyHomePage> createState() => _MyHomePageState();
} }
class _MyHomePageState extends State<MyHomePage> { class _MyHomePageState extends State<MyHomePage> {
List<List<int>> _grid = List.generate(5, (_) => List.generate(5, (_) => Random().nextInt(5))); late List<List<int>> _grid;
@override @override
void initState() {
super.initState();
_initializeGrid();
}
void _initializeGrid() {
_grid = List.generate(widget.gridSize, (_) => List.generate(widget.gridSize, (_) => Random().nextInt(5)));
}
Widget build(BuildContext context) { Widget build(BuildContext context) {
return Scaffold( return Scaffold(
appBar: AppBar( appBar: AppBar(
@ -68,16 +79,16 @@ class _MyHomePageState extends State<MyHomePage> {
child: GridView.builder( child: GridView.builder(
shrinkWrap: true, shrinkWrap: true,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount( gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 5, crossAxisCount: widget.gridSize,
), ),
itemCount: _grid.length * _grid.length, itemCount: widget.gridSize * widget.gridSize,
itemBuilder: (BuildContext context, int index) { itemBuilder: (BuildContext context, int index) {
int row = index ~/ _grid.length; int row = index ~/ widget.gridSize;
int col = index % _grid.length; int col = index % widget.gridSize;
return GestureDetector( return GestureDetector(
onTap: () => _onTileTap(row, col), onTap: () => _onTileTap(row, col),
child: Container( child: Container(
margin: EdgeInsets.all(4), margin: EdgeInsets.all(2),
decoration: BoxDecoration( decoration: BoxDecoration(
color: _getColor(_grid[row][col]), color: _getColor(_grid[row][col]),
borderRadius: BorderRadius.circular(8), borderRadius: BorderRadius.circular(8),