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@rena2019
Last active July 7, 2025 16:55
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GridView mit Mindestbreite
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'GridView mit Mindestbreite',
home: Scaffold(
appBar: AppBar(title: Text('Dynamische GridView')),
body: LayoutBuilder(
builder: (context, constraints) {
// Mindestbreite für das Grid
double minGridWidth = 300;
double availableWidth = constraints.maxWidth;
// Breite, die tatsächlich verwendet wird (mind. 300)
double gridWidth = availableWidth < minGridWidth
? minGridWidth
: availableWidth;
// Zellenbreite
double itemWidth = 150;
int crossAxisCount = (gridWidth / itemWidth).floor();
return Center(
child: Container(
width: gridWidth,
child: GridView.count(
crossAxisCount: crossAxisCount,
shrinkWrap: true,
physics: BouncingScrollPhysics(),
crossAxisSpacing: 8,
mainAxisSpacing: 8,
padding: const EdgeInsets.all(16),
children: List.generate(12, (index) {
return Container(
decoration: BoxDecoration(
color: Colors.teal[100 * ((index % 8) + 1)],
borderRadius: BorderRadius.circular(8),
),
child: Center(
child: Text(
'Item $index',
style: TextStyle(fontSize: 16),
),
),
);
}),
),
),
);
},
),
),
);
}
}
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