Lesson 1 · 14 min
App Architecture That Survives Growth
Layer a Flutter codebase so features can be added by several people at once without the whole thing turning into spaghetti.
Module 03 of 3
Advanced Flutter Tutorials
Everything that separates a demo from a production app. This module covers layered architecture, the rendering pipeline and custom painting, profiling and fixing jank, calling native platform code, a testing strategy that actually catches regressions, and automated release builds.
- Lessons
- 6
- Reading time
- ~83 min
- Price
- Free
Before you start
Developers maintaining a Flutter app in production, or preparing for senior/lead Flutter interviews.
- Comfortable with state management and async data flows
- You have shipped or maintained a non-trivial Flutter app
- Familiarity with your target platform's tooling (Gradle, Xcode)
What you will be able to do
- Structure a codebase into layers that survive feature growth
- Understand build/layout/paint and write custom render logic
- Profile with DevTools and eliminate jank and memory growth
- Bridge to native code with platform channels and FFI
- Build a test pyramid of unit, widget and integration tests
- Automate signed release builds in CI/CD
Lessons in this module
Lesson 2 · 15 min
The Rendering Pipeline and Custom Painting
Understand build, layout and paint, then draw exactly what you want with CustomPainter and custom render objects.
Lesson 3 · 14 min
Profiling and Fixing Performance
Find real jank with DevTools, understand UI versus raster thread costs, and apply the fixes that actually move the numbers.
Lesson 4 · 13 min
Platform Channels and Native Integration
Call Android and iOS APIs from Dart with method channels, stream native events back, and use FFI for direct C interop.
Lesson 5 · 14 min
A Testing Strategy That Catches Real Bugs
Unit, widget, golden and integration tests — what each is good at, how to write them fast, and how to keep the suite trustworthy.
Lesson 6 · 13 min
Release Builds, Signing and CI/CD
Configure flavours and environments, sign Android and iOS builds properly, shrink your app, and automate the whole release in CI.