A flutter package that provide basic utils like Themes and Error Handler Widget

A package that provide basic utils like Themes, common BuildContext extension and simple Error Page widget.

Great for creating lots of flutter apps as a portfolio.

Features

Tired of defining themes manually? just use the default ThemeData from this package:

import 'package:core/core.dart' as core;

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: core.appName,
      theme: core.AppThemes.light,
      darkTheme: core.AppThemes.dark,
      ...
    );
  }
}

Need shorthand for the common use of context? Try the BuildContext extension from this package:

import 'package:core/core.dart';

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

  @override
  Widget build(BuildContext context) {
    // Shorthand for Theme.of(context)
    context.theme;

    // Shorthand for MediaQuery.of(context)
    context.mediaQuery;

    // Shorthand for Scaffold.of(context)
    context.scaffoldState;

    // Check "src/utils/extensions.dart" for more

    return Container();
  }
}

Need a simple page to display error info? try ErrorPages from the package:

import 'package:core/core.dart';

// Will display status code 400 with 'Bad Request' text below it.
ErrorPages.client.badRequest();

// Will display status code 500 with 'Internal Server Error' text below it.
ErrorPages.server.internalServerError();

// Will display page based on requested status code.
//
// The Example below will display status code 404 with
// 'Not Found' text below it.
ErrorPages.byCode(404);

// You can also add custom message to the page
// (Default message is 'Sorry for the inconvenience').
//
// The message displayed below statusCode and name.
ErrorPages.client.notFound(message: 'The Page You Requested Not Found');
ErrorPages.byCode(403, message: 'You are not allowed to access this');

// See preview below for page visual.

ErrorPages previews:

Getting started

Add the package to your dependencies:

dependencies:
  core:
    git:
      url: https://github.com/KeidsID/flutter_app_core_package.git

Then, you just need to call init() once in main():

import 'package:core/core.dart' as core;

void main() {
  core.init();
  ...
}

You can also customize the Theme via init():

import 'package:flutter/material.dart';
import 'package:core/core.dart' as core;

void main() {
  core.init(
    appName: 'My App Name',
    appPrimaryColor: Colors.amber,
    useMaterial3: true,
  );
  ...
}

Now, you are ready to use this package’s utilities.

Usage

main.dart

import 'package:flutter/material.dart';
import 'package:core/core.dart' as core;

void main() {
  core.init(
    appName: 'Flutter Demo',
    useMaterial3: true,
  );

  runApp(const MyApp());
}

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: core.appName, // "Flutter Demo"
      // Both theme used material 3
      theme: core.AppThemes.light, 
      darkTheme: core.AppThemes.dark,
      themeMode: ThemeMode.system,
      // Simple page to display 404 Not Found
      home: core.ErrorPages.client.notFound(), 
    );
  }
}