screen_identifier

Description:

screen identifier

ScreenIdentifier #



A package provides an easy way to adjust multiple values based on screen size or parent widget size in Flutter project.

Live Preview #
👉 https://msuhal.github.io/flutter_screen_identifier
Getting started #
Add this to your package's pubspec.yaml file:
dependencies:
screen_identifier: ^0.0.1
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Import it:
import 'package:screen_identifier/screen_identifier.dart';
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Usage Example #
import 'package:flutter/material.dart';
import 'package:screen_identifier/screen_identifier.dart';

void main() {
/// [OPTIONAL] This is the custom minimum width set for each screen size.
ScreenIdentifier.instance.setMinimalWidth(
xxxl: 1800,
xxl: 1400,
xl: 1200,
lg: 992,
md: 768,
sm: 576,
);

runApp(const MyApp());
}

class MyApp extends StatelessWidget {
const MyApp({super.key});

@override
Widget build(BuildContext context) {
const title = 'Screen Identifier Example';
return MaterialApp(
title: title,
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: title),
);
}
}

class MyHomePage extends StatelessWidget {
final String title;
const MyHomePage({super.key, required this.title});

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text(title)),
body: const GridView1(),
);
}
}

class GridView1 extends StatelessWidget {
const GridView1({
Key? key,
}) : super(key: key);

@override
Widget build(BuildContext context) {
return ScreenIdentifierBuilder(
builder: (context, screenIdentifier) {
final crossAxisCount = screenIdentifier.conditions<int>(
xxxl: 7,
xxl: 6,
xl: 5,
lg: 4,
md: 3,
sm: 2,
xs: 1,
);
const paddingPerCard = 8.0;
const paddingGridView = 8.0;
final heightCard = screenIdentifier.conditions<int>(
xxxl: 196,
xxl: 210,
sm: 220,
xs: 230,
);
final childAspectRatio = ((screenIdentifier.width / crossAxisCount) -
paddingGridView -
(paddingPerCard * crossAxisCount)) /
heightCard;

return GridView.builder(
padding: const EdgeInsets.all(8),
shrinkWrap: true,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: crossAxisCount,
childAspectRatio: childAspectRatio,
),
itemCount: 24,
itemBuilder: (context, index) {
return Padding(
padding: const EdgeInsets.all(paddingPerCard),
child: Card(
color: screenIdentifier.conditions<Color>(
xxxl: Colors.brown,
xxl: Colors.deepOrange,
xl: Colors.deepPurple,
lg: Colors.green,
md: Colors.teal,
sm: Colors.blueGrey,
xs: Colors.pink,
),
child: Center(
child: Text(
screenIdentifier.conditions<String>(
xxxl: 'XXXL',
xxl: 'XXL',
xl: 'XL',
lg: 'LG',
md: 'MD',
sm: 'SM',
xs: 'XS',
),
style: const TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 40,
),
),
),
),
);
},
);
},
);
}
}
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