Name: Flutter Cracow #12 - Dominik Roszkowski & Majid Hajian
Start: 2025-05-16T18:00:00+02:00
End: 2025-05-16T22:00:00+02:00
Location: Epam Event Hub

**Hi there! 👋**

Flutter Cracow invites mobile tech enthusiasts and Flutter developers to join us for another event. It's an opportunity to meet, learn new things, share experiences beyond platforms and to network. The event is open to everyone interested in exploring Flutter framework and Dart language. Our goal is to build a local Flutter community in Kraków.

**This time we are meeting at [EPAM HUB](https://maps.app.goo.gl/6YjYuCbLQ6Wg454u5).**
The event will be conducted in English and talks will be recorded. [Subscribe to our YouTube channel](https://www.youtube.com/channel/UCjbxztVTYr9yw00n2ks-h_g?sub_confirmation=1) where we publish videos from past events. 🎬
Follow us on [Twitter](https://twitter.com/FlutterCracow) and join our Meetup Group to stay updated on announcements and event changes! 📢

**Flutter Meetup #12 event partner is EPAM, OLX Group and** **GDG Kraków.**
📅 Date: May 16, 2025 (Friday)
🕕 Time: 6:00 PM
📍 Location: EPAM Hub, [Fabryczna 1A](https://maps.app.goo.gl/6YjYuCbLQ6Wg454u5) (Fabryczna)

[Connect with EPAM Mobile People](https://www.youtube.com/@MobilePeople)
[Learn more about GDG Kraków ](https://gdg.community.dev/gdg-krakow/)

**About OLX Group**
OLX is over ten brands present in eight markets across Europe and Asia. Company is currently hiring 1200 people in Poland. Check [current career offers](https://careers.olxgroup.com/jobs/). In OLX offices are organized events [Masterclass by OLX](https://www.youtube.com/@OLXGroup/videos) which allows participants broad their knowledge in various tech stacks and are excellent opportunity to network within local developers community. [#OLXAlways](https://www.linkedin.com/feed/hashtag/?keywords=olxalways) [#LifeAtOLX](https://www.linkedin.com/feed/hashtag/?keywords=lifeatolx) [#OLXtech](https://www.linkedin.com/feed/hashtag/?keywords=olxtech) [#WeAreOLX](https://www.linkedin.com/feed/hashtag/?keywords=weareolx)
[Follow OLX at LinkedIn](https://www.linkedin.com/company/olx-group/)
[Find out more about OLX Masterclass](https://careers.olxgroup.com/olx-masterclass/)

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
**❗IMPORTANT:** Please be informed that this time, entry to the event is **restricted to registered attendees only**. Upon arrival, you will be required to present a valid form of identification (either a physical ID card or the mObywatel app) for verification. Also please join this meetup event when you are going to attend in person. This way there will be a spot for you and more people could participate in event.
Thank you for your understanding.
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-

**AGENDA**

🎟️ 17:45 - Warm up

🚀 START 18:00 - EPAM Presentation

🎙️ 18:20 - Dominik Roszkowski GDE - *Using Android and iOS APIs from Flutter - what is "native interop"*

Abstract: Method channels may fade into oblivion... Native interop has been a long waiting feature in Dart and Flutter. And it seems they are finally becoming viable alternative to message passing. In this talk we'll explore current state of interoperability with Java, Kotlin, Swift and Obj-c. Can it be used in production? What about platform views? Is it any better than pigeon or method channels?

Dominik is Google Developer Expert in Flutter eager to create beautiful apps for mobile and desktop. He’s Lead Engineer at Visible and co-founder of Flutter Europe conference. He is active speaker on local meetups and writes Flutter-related articles on his blog roszkowski.dev.

🍕 19:10 - Break & Pizza

🎙️ 19:40 - Majid Hajian GDE - *Let’s Talk About Memory Leaks In Dart And Flutter*

Abstract: Memory leaks can be annoying as they are hard to spot and recreate compared to syntax errors or logic bugs usually appearing in the development phase. Memory leaks in Flutter applications are getting even more complex with the addition of layers of widgets and controllers combined with listeners over time, which may result in performance issues or unexpected crashes for users after prolonged use. In this talk, I will explore Dart and Flutter memory leaks and memory bloating, how they occur, their importance in coding practices, solutions to debug memory leaks and identify them, such as DevTools and Leak Tracker, and shifting left by relying on static analyzer tools and how they can prevent such leaks from sneaking into your code base. This talk includes many examples from real applications I have worked on in the last few years.

Flutter GDE Majid Hajian is an accomplished software architect and developer renowned for his expertise in designing intricate web and mobile applications. He is recognized as a Google Developer Expert, has received accolades as an author, and is a respected instructor. Majid has authored several engineering books, including the top-seller [www.flutterengineering.io](https://www.flutterengineering.io) book series.

❓ 20:30 - Quiz

💬 21:00 - Networking @ [Browar Nowa Wytwórnia](https://nowawytwornia.pl/), [Fabryczna 13](https://maps.app.goo.gl/32cJQYoMzCaifmhi9)

**❗IMPORTANT:** Please only join this Meetup event when you are going to attend in person. This way there will be a spot for you and more people could participate in event 🙂

**Partnerships**
If your company wants to join as a partner for the event, let us know, and let's discuss the possibilities. 🤝

Paul Kastel

Rafał Płonka

Flutter Cracow

Flutter Meetup Network

Epam

OLX Group

Fluttercon

Kodeco

JetBrains

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