Performance between LazyVStack, VStack and List

Рет қаралды 9,177

Күн бұрын

Hello guys!
I started this channel talking about stacks in SwiftUI, today we will talk about another stack: LazyVStack.
Let's see what's the difference between regular VStack and List. By the way, we will focus only on vertical stacks, but this also will apply to horizontal ones.
Content:
0:00 - Intro
0:39 - What is a VStack?
3:21 - LazyVStack to the rescue!
4:41 - List vs LazyVstack
5:46 - VStack loading images from the network ❌
6:52 - More between List and LazyVStack
7:45 - Do you want to learn more?
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Source code showed in the video: github.com/pitt500/Pokedex/tr...
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Resources:
* LazyVStack: developer.apple.com/documenta...
* Stacks, Grids, and Outlines in SwiftUI: developer.apple.com/videos/pl...
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Other videos in the channel:
* CacheAsyncImage: • A better AsyncImage wi...
* What's new in SwiftUI 3.0: • What's new in SwiftUI ...
* Swift Concurrency: • Swift Concurrency
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Don't forget to subscribe to the channel, like it, and follow me on social media:
Twitter:
/ swiftandtips
/ pitt500
Finally, ask me for a video you would like to see next 😄!
Credits:
- Music by Wataboi from pixabay.com/
- Video edited with LumaFusion

Пікірлер: 26

@Kevin_Zed Жыл бұрын

I found this very helpful. You asnwered my concerns and provided even more helpful knowledge that I wasn't aware of.

@ColeDano 2 жыл бұрын

Great explanation, seeing the memory usage really made it clear.

@swiftandtips 2 жыл бұрын

Thank you @Cole! I found that example accidentally and it was great 😆

@trevormills 2 жыл бұрын

Excellent explanation. So clear and easy to understand - Thank you.

@swiftandtips 2 жыл бұрын

You’re welcome Trevor! ☺️

@isurujn 5 ай бұрын

Thanks for this. Really helped me make the decision on what to use when.

@swiftandtips 5 ай бұрын

Awesome! 🚀

@yeshadithya 2 жыл бұрын

This one is great lessons for me when developing app without using extra memory usages and thank you for your valuable lesson❤

@swiftandtips 2 жыл бұрын

I’m glad the video was useful for you 😄 Thank you @Yesh!

@freakpunker Жыл бұрын

Excellent video! 👍🏻

@swiftandtips Жыл бұрын

Thank you! 🙏

@protaotogamer1503 2 жыл бұрын

As usual epic video

@swiftandtips 2 жыл бұрын

Thank you @Protaotogamer 🙌🏼

@sipanhazim4128 2 жыл бұрын

I am using VStack in my projects and always wondered why performance is heavy and slow ..Thank you !!!!

@swiftandtips 2 жыл бұрын

I’m glad to read this was useful for you @Sipan! ☺️

@MohammadRaziPour Жыл бұрын

Thanks, great

@leandroandrade8490 Жыл бұрын

Maybe use List is not a problem when e.g. fetch data from external API using pagination. Thanks for your explanation.

@VictorRiurean-ee7fj Жыл бұрын

nice

@xalizalizx 2 ай бұрын

Is there a reference/proof that List "reuse" cells? I tried to find, although some StackOverflow answers says it is, there's no official reference on this behavior. So just wondering if you have more info on this :).

@swiftandtips 2 ай бұрын

That’s a default behavior since UIKit to save memory. developer.apple.com/documentation/uikit/uitableviewcell/1623223-prepareforreuse

@xalizalizx 2 ай бұрын

@@swiftandtips Yes, I’m aware prepareForReuse() exists. But how do you know SwiftUI List uses it?