How to generate random ascii strings in Flutter
Last updated Nov 12, 2021Random number or Random Strings generators are useful for many different purposes. Aside from obvious applications like generating random numbers for the purposes of creating unpredictable results in a computer game.
So, In today's tutorial, we will see how we can create random ascii strings in Flutter. Let's start
Step 1: Create a new Flutter Application.
Step 2: Add a line like this to your package's pubspec.yaml
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Once added you will get access to functions like:
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randomNumeric : Creates random numbers
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randomBetween: Creates random number between two numbers.
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randomString: Creates random String.
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randomAlpha: Create random alpha numeric.
Step 3: Now were you want to get the random string you can use function randomString in Text widget and once you run the application you will get random string
for example:
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Text( randomString(20), style: TextStyle(fontSize: 30), ), |
Complete Source Code to to generate random ascii numbers in flutter
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import 'package:flutter/material.dart'; import 'package:random_string/random_string.dart';
void main() => runApp(RandomApp());
class RandomApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, home: DemoPage(), ); } }
class DemoPage extends StatefulWidget { @override _DemoPageState createState() => _DemoPageState(); }
class _DemoPageState extends State { TextStyle text = TextStyle(fontSize: 30); int number = 25;
@override Widget build(BuildContext context) { return Scaffold( backgroundColor: Colors.blueGrey, appBar: AppBar( title: Text('Random Everything'), ), body: Container( decoration: BoxDecoration( shape: BoxShape.circle, color: Colors.grey.shade200, ), child: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ Text( randomNumeric(10), style: text, ), Text( randomBetween(10, 100).toString(), style: text, ), Text( 'This is Constant $number Number', style: text, ), Text( randomString(20), style: text, ), Text( randomAlphaNumeric(8), style: text, ), Text( randomMerge('Hello', 'Friends'), style: text, ), Text( randomAlpha(5), style: text, ), ], ), ), ), ); } }
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Output:
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Conclusion: In this tutorial, we have learned how we can generate random string, random number, random acsii numbers in Flutter.
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