SwiftUI • Hacker News Board

Re: SwiftUI

#21

Post by vbezhenar » Mon, Jun 03, 2019, 7:31 PM UTC

stefan_ wrote: post #13

Apple developers will be glad they get to rewrite their entire application with a new UI framework and paradigm or risk their apps looking garbage on the platform (and stop working by next release). This must be the .. fifth entirely new UI framework from Apple?

I don't think that's true. It seems to be higher-level framework based on Cocoa Touch. Existing apps will work just fine. And probably any real world app will have to deal with Cocoa Touch as well, like any real React app have to work with DOM.

Re: SwiftUI

#22

Post by itp » Mon, Jun 03, 2019, 7:32 PM UTC

sz4kerto wrote: post #3

To me this looks very similar to what Google is doing with Flutter.

Indeed, but (unsurprisingly) Apple-only.

Re: SwiftUI

#23

Post by oflannabhra » Mon, Jun 03, 2019, 7:33 PM UTC

This is fantastic, and I am almost upset by how little info the keynote address included. Obviously there will be a ton of detail coming out this week with the labs and documentation being released, looking forward to that.

As an iOS developer, this is by far the biggest announcement. This has huge potential to provide value to me and my team. I'm looking forward to ripping out programmatic NSLayoutConstraint and Interface Builder from my projects ASAP. This seems like it includes much more than that, however.

Re: SwiftUI

#24

Post by azhenley » Mon, Jun 03, 2019, 7:33 PM UTC

.color(.gray))

What object is .gray acting on?

Re: SwiftUI

#25

Post by aerialcombat » Mon, Jun 03, 2019, 7:33 PM UTC

Apocryphon wrote: post #5

Can this retroactively support apps targeting iOS 12 and older?

probably not

Re: SwiftUI

#26

Post by untog » Mon, Jun 03, 2019, 7:34 PM UTC

I'd be curious to know how many React Native devs work on cross-platform apps. In casual conversation I've had it actually isn't that high, despite it being one of the central promises of RN.

Given that SwiftUI has live reloading and a sensible template interface I could absolutely see it winning over some RN devs. There's something to be said (particularly with Apple) for using the native toolset rather than RN, Flutter and the like.

Re: SwiftUI

#27

Post by saagarjha » Mon, Jun 03, 2019, 7:34 PM UTC

sz4kerto wrote: post #3

To me this looks very similar to what Google is doing with Flutter.

But native, of course.

Re: SwiftUI

#28

Post by [deleted] » Mon, Jun 03, 2019, 7:34 PM UTC

stefan_ wrote: post #13

Apple developers will be glad they get to rewrite their entire application with a new UI framework and paradigm or risk their apps looking garbage on the platform (and stop working by next release). This must be the .. fifth entirely new UI framework from Apple?

[deleted]

Re: SwiftUI

#29

Post by mythz » Mon, Jun 03, 2019, 7:34 PM UTC

pjmlp wrote: post #19

sz4kerto wrote: post #3

To me this looks very similar to what Google is doing with Flutter.

Jetpack Composer you mean. I bet by next IO, Flutter will get replaced by it, specially after the #KotlinEverywhere announcement and Kotlin/Native effort for iOS.

No he means Flutter which has been around a lot longer, it's immediately what I've thought of being inspired by as well:

https://flutter.dev/docs/development/tools/hot-reload

Re: SwiftUI

#30

Post by vbezhenar » Mon, Jun 03, 2019, 7:34 PM UTC

kylemacomber wrote: post #8

I’m one of the engineers that spearheaded this initiative inside of Apple. I just wanted to thank the HN community—I’ve been reading HN for 10 years now and it’s been formative in my development as a software engineer. If you’re at WWDC stop by the labs and say hi!

IDE support is jaw-dropping. I did not see that kind of integration between text and UI anywhere. Framework code looks like React from the first glance, but IDE integration is game-breaker.