string_utils_abdullah_0120 0.0.2

A Flutter package for validating strings using helper util methods, easy to use and manage.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:string_utils_abdullah_0120/string_utils_abdullah_0120.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: Center(
            child: Column(mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[
      TextButton(
          onPressed: () {
            _validateStrings("1111", context);
          },
          child: Center(child: Text('Check 1111', style: Theme.of(context).textTheme.headlineMedium))),
      TextButton(
          onPressed: () {
            _validateStrings("1221", context);
          },
          child: Center(child: Text('Check 1221', style: Theme.of(context).textTheme.headlineMedium))),
      TextButton(
          onPressed: () {
            _validateStrings("[e-mail]", context);
          },
          child: Center(child: Text('Check [e-mail]', style: Theme.of(context).textTheme.headlineMedium)))
    ])));
  }

  void _validateStrings(String givenString, BuildContext context) {
    if (StringHelperUtils.instance.isNullOrBlank(givenString: givenString)) {
      debugPrint("Value is null or empty");
    } else if (StringHelperUtils.instance.isDouble(stringToCheck: givenString)) {
      debugPrint("Value is Double");
    } else if (StringHelperUtils.instance.isInt(stringToCheck: givenString)) {
      debugPrint("Value is Int");
    } else if (StringHelperUtils.instance.isNumeric(stringValue: givenString)) {
      debugPrint("Value is Numeric");
    } else if (StringHelperUtils.instance.isValidEmail(givenEmail: givenString)) {
      debugPrint("Valid Email");
    } else if (StringHelperUtils.instance.isValidAmountValue(amountValue: givenString, allowedMaxAmount: 12345)) {
      debugPrint("Valid Amount");
    }
  }
}