Mode:
Duration:
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Coding works best on desktop or with an external keyboard.
Expense Tracker - Flutterflow Typing CST Test
Expense Tracker — Flutterflow Code
Tracks expenses with visual input fields and lists in FlutterFlow, enhanced with custom Dart code for managing total sums.
import 'package:flutter/material.dart';
class ExpenseTracker extends StatefulWidget {
@override
_ExpenseTrackerState createState() => _ExpenseTrackerState();
}
class _ExpenseTrackerState extends State<ExpenseTracker> {
final List<Map<String, dynamic>> expenses = [];
final TextEditingController desc = TextEditingController();
final TextEditingController amount = TextEditingController();
double get total => expenses.fold(0, (sum, e) => sum + e['amount']);
void addExpense() {
if(desc.text.isNotEmpty && amount.text.isNotEmpty) {
setState(() {
expenses.add({'desc': desc.text, 'amount': double.parse(amount.text)});
desc.clear();
amount.clear();
});
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('Expense Tracker')),
body: Column(
children: [
TextField(controller: desc, decoration: InputDecoration(hintText: 'Description')),
TextField(controller: amount, keyboardType: TextInputType.number, decoration: InputDecoration(hintText: 'Amount')),
ElevatedButton(onPressed: addExpense, child: Text('Add Expense')),
Text('Total: $' + total.toStringAsFixed(2)),
Expanded(
child: ListView.builder(
itemCount: expenses.length,
itemBuilder: (context, index) => ListTile(title: Text(expenses[index]['desc']), trailing: Text('$' + expenses[index]['amount'].toString())),
),
),
],
),
);
}
}Flutterflow Language Guide
FlutterFlow is a low-code visual app builder that enables users to create native iOS, Android, and web applications using a drag-and-drop interface, powered by Google’s Flutter framework.
Primary Use Cases
- ▸Cross-platform mobile apps
- ▸Startup MVPs and prototypes
- ▸SaaS and dashboard apps
- ▸Internal tools and admin panels
- ▸Apps with Firebase or API-based backends
Notable Features
- ▸Drag-and-drop UI builder
- ▸Firebase integration and authentication
- ▸Custom actions and custom Flutter code
- ▸API/REST integration
- ▸Workflow logic and animations
Origin & Creator
FlutterFlow was created by Abel Mengistu and Alex Greaves, launched in 2021 to simplify Flutter app development for both developers and non-developers.
Industrial Note
FlutterFlow is popular among startup founders, Flutter developers, and product teams building cross-platform applications rapidly with both visual UI editing and optional custom coding.
Quick Explain
- ▸FlutterFlow allows users to visually design UI and generate clean Flutter code.
- ▸It supports backend integrations, Firebase setup, APIs, authentication, and custom actions.
- ▸Apps built with FlutterFlow can be exported as Flutter code or deployed directly to app stores and the web.
Core Features
- ▸Visual editor for Flutter UI
- ▸Backend connectivity (Firebase, APIs)
- ▸App logic with actions and workflows
- ▸Generated Flutter code export
- ▸Deployment to web, iOS, and Android
Learning Path
- ▸Understand Flutter basics
- ▸Build simple UI pages
- ▸Learn actions and states
- ▸Integrate Firebase & APIs
- ▸Deploy and optimize app
Practical Examples
- ▸Travel booking app
- ▸Chat or messaging app
- ▸Task management dashboard
- ▸E-commerce mobile app
- ▸SaaS admin panel
Comparisons
- ▸FlutterFlow vs Bubble: mobile-native Flutter vs web-first no-code
- ▸FlutterFlow vs Adalo: production Flutter code vs simpler mobile builder
- ▸FlutterFlow vs Glide: visual Flutter UI vs spreadsheet apps
- ▸FlutterFlow vs Draftbit: better Firebase support vs React Native base
- ▸FlutterFlow vs AppGyver: faster UI building vs more logic flexibility
Strengths
- ▸Generates production-ready Flutter code
- ▸Full cross-platform support
- ▸Easy Firebase & API integration
- ▸Fast prototyping with real-time preview
- ▸Supports custom code when needed
Limitations
- ▸Advanced logic may require custom code
- ▸Complex UI might become cluttered in visual editor
- ▸Some Flutter plugins are unsupported
- ▸Performance depends on widget tree complexity
- ▸Higher-tier features require paid plans
When NOT to Use
- ▸Apps requiring heavy custom native plugins
- ▸Ultra-complex game-like apps
- ▸Very large enterprise workflows
- ▸Offline-first apps needing full local DB control
- ▸Projects requiring 100% handwritten code control
Cheat Sheet
- ▸Widgets -> UI
- ▸Actions -> Logic
- ▸Backend -> Firebase/APIs
- ▸Pages -> Screens
- ▸Themes -> Styling
FAQ
- ▸Is FlutterFlow free?
- ▸Yes - with paid advanced plans.
- ▸Can apps be exported?
- ▸Yes, full Flutter code export is supported.
- ▸Does FlutterFlow support Firebase?
- ▸Yes, deeply integrated.
- ▸Can I publish mobile apps?
- ▸Yes - iOS, Android, and web.
- ▸Is coding required?
- ▸No, but custom code is optional.
30-Day Skill Plan
- ▸Week 1: UI building fundamentals
- ▸Week 2: Firebase integration
- ▸Week 3: Custom actions and APIs
- ▸Week 4: Responsive layouts & animations
- ▸Week 5: Deploy to iOS/Android/Web
Final Summary
- ▸FlutterFlow is a powerful visual builder for creating Flutter-based apps without heavy coding.
- ▸It supports Firebase, APIs, custom code, and full code export.
- ▸Ideal for mobile-first cross-platform apps.
- ▸Fast prototyping with production-level output.
- ▸Great for startups, developers, and product teams.
Project Structure
- ▸Pages - app screens
- ▸Components - reusable UI
- ▸Firestore/APIs - data sources
- ▸Actions - logic and workflow
- ▸Theme - global styling
Monetization
- ▸Integrate Stripe or Razorpay
- ▸Sell app templates
- ▸Subscription-based apps
- ▸In-app purchases (via custom code)
- ▸Paywalled SaaS features
Productivity Tips
- ▸Use components for reusable UI
- ▸Start with templates
- ▸Preview frequently
- ▸Plan states before building
- ▸Use global variables for consistency
Basic Concepts
- ▸Widget Tree: hierarchy of UI widgets
- ▸Pages: screens in the app
- ▸Actions: logic executed on events
- ▸Bindings: linking UI to data
- ▸Firebase/API: backend sources