Create PasswordGenerator.dart

PasswordGenerator.dart

@@ -0,0 +1,99 @@
+import 'package:flutter/material.dart';
+import 'dart:math';
+
+void main() => runApp(MyApp());
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Password Generator',
+      theme: ThemeData(
+        primarySwatch: Colors.blue,
+      ),
+      home: PasswordGeneratorScreen(),
+    );
+  }
+}
+
+class PasswordGeneratorScreen extends StatefulWidget {
+  @override
+  _PasswordGeneratorScreenState createState() => _PasswordGeneratorScreenState();
+}
+
+class _PasswordGeneratorScreenState extends State<PasswordGeneratorScreen> {
+  String _generatedPassword = '';
+  int _passwordLength = 10;
+
+  void _generatePassword() {
+    // Generate a random password of length _passwordLength
+    final random = Random();
+    const charset = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#\$%^&*()_+-=';
+    var password = '';
+    for (var i = 0; i < _passwordLength; i++) {
+      password += charset[random.nextInt(charset.length)];
+    }
+
+    setState(() {
+      _generatedPassword = password;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('Password Generator'),
+      ),
+      body: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            Text(
+              'Generate a random password:',
+              style: TextStyle(fontSize: 20),
+            ),
+            SizedBox(height: 16),
+            Center(
+              child: Text(
+                _generatedPassword,
+                style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
+              ),
+            ),
+            SizedBox(height: 16),
+            Row(
+              children: [
+                Text(
+                  'Password length:',
+                  style: TextStyle(fontSize: 18),
+                ),
+                SizedBox(width: 16),
+                DropdownButton<int>(
+                  value: _passwordLength,
+                  onChanged: (value) {
+                    setState(() {
+                      _passwordLength = value!;
+                    });
+                  },
+                  items: [
+                    DropdownMenuItem(value: 8, child: Text('8')),
+                    DropdownMenuItem(value: 10, child: Text('10')),
+                    DropdownMenuItem(value: 12, child: Text('12')),
+                    DropdownMenuItem(value: 16, child: Text('16')),
+                    DropdownMenuItem(value: 20, child: Text('20')),
+                  ],
+                ),
+              ],
+            ),
+            SizedBox(height: 16),
+            ElevatedButton(
+              onPressed: _generatePassword,
+              child: Text('Generate'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}