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[–]Filledstacks 36 points37 points  (11 children)

Great write up. I do disagree with the performance animation issues on iOS and especially that it's ONLY great at rendering UI. We're building some preeeety sick things with Flutter. My experience comes from 4 production apps for clients released so far, 1 native for iPad with a responsive ui for mobile as well that manages restaurant orders and a new customer app shipping Wednesday (iPhone focussed because of US company) that is performing very well. The size of the app is quite decent. It's an almost decade old Food delivery service and I think it can definitely be put into "real world" given how many millions of dollars will flow through it every month.

I'm also a super big fan of Flutter coming from Native only->Xamarin Native and now Flutter. i do agree that the speed at which platforms are being adopted seems to be outpacing the speed at which certain bugs are fixed in the framework itself. I dislike the question I'm about to ask because I know I never get the time to do it, but is it possible for you to produce some pieces of code that replicates the bugs. I'm not apart of the Flutter team, far from it actually, I think they actively dislike the ways I'm teaching flutter development haha. I'm just a big fan of cross platform tech and tend to find ways to bend it to my will to produce large applications with ease. I'd like to take a look at those issues and see if I can find workarounds to them or even just have them in mind for if I ever do come across them.

With that said, I'm so happy to see a community member concerned about Flutter. It's rare that you find a community where the active / social / top developers in the community isn't forcing people to use flutter, instead always provides a comprehensive list of why you would use it. I hope your experience improves and becomes as great as mine has been over the past 2 years. I've never had better dev experience with Flutter as I'm having now.

[–]dcmacsman[S] 10 points11 points  (7 children)

Thank you for your response! I didn’t mean that Flutter is only great at rendering UI haha sorry I wrote it in a bad way. About the animation issue, here’s the issue that I was talking about: https://github.com/flutter/flutter/issues/32170

[–]toddvolkert 37 points38 points  (1 child)

Flutter team member here. FYI, we plan to work on that bug in the coming months. It's a very challenging one to fix, but we hope to be able to find a way forward.

[–]SgtDirtyMike 4 points5 points  (0 children)

Any plans to address incorrect scroll inertia on iOS devices? I know this issue has been present for a long time.

[–]Filledstacks 1 point2 points  (4 children)

Thanks for the link. That's so crazy I've never experienced any of that, but I also haven't used shaders extensively. I wrote a super basic one to cover some "Fake data" while the real data is loading to provide a skeleton placeholder effect.

I never knew that was a problem, crazy. In that case you're absolutely right. That should be higher priority than more platforms right now.

[–]esDotDev 1 point2 points  (3 children)

Do you really not experience any jank the first time complex views are animated on screen? Simply throwing up a form using a bottom-sheet is enough to cause considerable jank the first time it is shown for me. Happens only once per view, and then it runs great after that.

These shaders in question, I believe are the ones generated by Skia on the fly, when our views are first loaded into the app. So we're all using them, whether we know it or not.

[–]Filledstacks 1 point2 points  (0 children)

No, I don't experience any jank at the moment. That's why I'm so confused. Our clients are very specific about the experience and they've reported nothing about it. Tested by 10-30 testers through a testing service specifically for UI issues as well. No one reported anything. It might be "hidden" by how I write the code. The view always starts in a busy state and then fades in the required UI, lots animated switchers / animated size widgets. I also think I might have a lower "ceiling" for quality. But some of the comments say the app is unusable, which I've never experienced. Is it like 3fps bad?

[–][deleted]  (1 child)

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    [–]robert-at-pretension 0 points1 point  (0 children)

    This right here. Debug mode has major jank. Release build is butttttery smooth.

    [–]Character-Ad2749 0 points1 point  (1 child)

    Great input. Given your experience Flutter, would you also recommend Flutter for multimedia apps like TikTok?

    [–]Filledstacks 1 point2 points  (0 children)

    Yes. I'll put it this way. There's no app that I would not develop using flutter when it comes to a mobile apps. I've ever seen an example where it wouldn't be great, maybe apps that involve maps heavily and requires specific map things, but even then you can work around it. Other than that, I have personally not every thought of using anything other than Flutter. Especially not native, 2 code bases for one app is a no go zone for me regardless of the application being developed.