There has to be a better way to write mobile applications. Is that Ionic? I don't know.
https://developer.apple.com/tutorials/swiftui/
There may be a chance of it being adapted for other platforms in the future.
Maybe other developers who really really love Swift and SwiftUI might port it to their preferred platforms. :)
that’s not the hard part, and apple knows it ^_^
it will be interesting when/if someone manages to get something close to apples implementation working, though my guess is they will have a “not fun” time trying to reimplement every ui interaction satisfactorily...
Flutter looks interesting, going to check it out.
In the end one wants a true "write once, run everywhere" framework, not write the business logic and then write the UI 3+ times for each target platform. Ionic delivers on this front, but am curious to see if Flutter takes it to another level (blazing fast dev/reload cycles and native performance in production sound quite appealing).
That said, who knows what the demo app was done with. If there is lagging scroll performance, it could be a lot of things.
I will say that figuring out where the performance problems are would be pretty enjoyable in IDEA. The tooling there for performance is quite good.