Flutter Intermediate Part 2 - Practical App Development - US Stock App (with Clean Architecture)
You can experience an example of implementing an app with clean architecture, including caching techniques using a local DB, CSV parsing, and custom drawing using Canvas.
Flutter app development , Robust with clean architecture 📲
These days, with the increase in Flutter developers, it is not easy to find cases where actual projects are developed with proper architecture . For example, when using the popular GetX library, it is not uncommon to write code that has a dependency on GetX in all layers, such as manipulating the Context in the data layer because of the excessive freedom. In this case, it is difficult to maintain the code, and it tends to become a crude application that is difficult to modify or test functions.
In this lecture Applying clean architecture Let's develop a practical US stock app .
Those who are looking at this lecture are those who have taken my lecture 'Flutter Intermediate - Clean Architecture' or those who have equivalent knowledge. In response to the request of students who wanted to cover more real-world examples, I have created a series called 'Real-world App Development' that goes one step further than the last lecture where I covered two examples. I hope this will be an opportunity to learn how to use Provider to restrict freedom and maintain a clean architecture.
Watch the previous lecture together 📺
Clean Architecture Try the practice 🚩
Flutter practical app development, recommended for these people!
What is clean architecture yet? For those who don't know
Some more flutter examples People I want to meet
Processing data other than JSON For those who are wondering what to do
In this lecture, we will cover a practical application development example while applying clean architecture to a Flutter app. Clean architecture is
1️⃣ Framework independent
2️⃣ It is easy to test
3️⃣ It is easy to modify or add functions.
Therefore, it can be said that it is an essential concept for developing good apps.
US stock information app Make it yourself 🛠️
5 features implemented in the app ✨
Read US stock information as CSV, parse it, and display it in a list
Once loaded, the list is stored in the local DB and used as a cache.
Parse JSON data for details
The graph is implemented by drawing it directly with a custom painter.
Apply Material 3 theme and switch between dark and light mode depending on system settings
After attending the lecture...
✅ You can better understand app development using clean architecture.
✅ You can get a feel for processing data other than JSON.
Flutter Advanced Course Learn directly from the author of Flutter Survival Coding I have been developing Flutter since 2019, wrote the first Flutter book in Korea, provided offline training to train dozens of Flutter developers, and filmed online lectures. Recently, I have been producing intermediate and higher level courses aimed primarily at junior developers rather than beginners.
Flutter-related training and activities
2022 Seoul Business Agency Sprout Education Program 4th Session: Flutter-based Multiplatform App Developer Debut Course
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2021 KT Future Talent Development 3rd AI/SW Development Flutter Training
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2020 Seoul Business Agency Sprout Training Program: Flutter-based Multiplatform Mobile App Developer Debut Course
2019 IBM DevDay Event: Flutter Announced for Android and iOS Development at Once
2019 GDG Suwon Event: Flutter Usage Presentation
Check out the Q&A ! 💬
Q. Can I take this course if I don’t know the clean architecture theory?
Q. I am a current Flutter developer. Will this be helpful to me?
If you found the pre-course 'Flutter Intermediate - Clean Architecture' helpful, this course will definitely help you too.
Q. It seems like this lecture doesn't use UseCase, but isn't UseCase essential for clean architecture?
Yes. If there are few functions, Repository is enough instead of UseCase. If you want to try writing UseCase, please do it as homework and share Github. I will review it.
Associated Roadmap
Make sure this is the course you need to study. (Click on the image to view it in a new window.)
Recommended for these people
Who is this course right for?
For those who need more examples of apps applying Clean Architecture
Those who want to build an app using Clean Architecture themselves.
Just like the previous Clean Architecture lecture, it was very informative because it was full of technologies that are really necessary for practical work. I used Hive for the first time and applied Material 3, and the last part where I drew a graph directly using Canvas was really necessary. When developing with Flutter, I tended to take it easy because I depended on libraries a lot, but this lecture made me think that I should make something if I don't like it. It won't be easy, though. Haha. And every time I finish the lecture, I feel motivated to develop. Haha. Please continue to provide lectures that make me feel like I'm learning from a friendly, top-notch senior for a new company project~ Thank you!!!
The last lecture was good, but this lecture is also the best.
Sometimes when I do Flutter, there are parts that I have to draw myself, and this lecture scratched my itch well.
And it's great because it comes up with things I didn't understand well in practice.
The part about applying Material 3, which was recently released, was also a great help to people like me who like recent stuff.
After taking the lecture, I come back and review it whenever I have questions, and it's great.