SwiftUI Pull to Refresh Support

UI Frameworks SwiftUI
Mougfrey OP
Created Jul ’20
Replies 32
Boosts 1
Views 18k
Participants 32
Hi,

Are there plans to add Pull to Refresh support to List or ScrollView in iOS14?

This is a large gap and the workarounds create other issues.

  1. Wrapping all my swiftui view content in a UIScrollView ViewRepresentable wrapper (leveraging the refreshControl property of ScrollView) causes other issues. Specifically NavigationLinks driven by Binding<Idenfiable> don’t present (presumably the nesting within a UIHostingController to sit within the UIScrollView breaks this somehow).

  2. Refresh controls usually render above the Large Navigation bar titles which aren’t exposed as Views. This means with approaches that use Preferences and geometry readers can’t get an accurate scroll offset (because large titles shrink and grow as the user scrolls)

I can probably work around this by doing all my navigation in UIKit, calling back from Views to some parent object (eg Navigation Coordinator) who can then manage pushing View controllers that wrap SwiftUI views in hosting controllers. But that is not ideal.

Has anyone had any luck with a Pull to refresh solution in SwiftUI with navigation? (other than introspecting the View tree for secret UITableViews etc)

Replies  32
Boosts  1
Views  18k
Participants  32
purkylin OP
Jul ’20
I also want to know
3
BrunoMarcal OP
Jul ’20
I also want to know
2
kimhandole OP
Jul ’20
I also want to know
2
onehitwonder OP
Jul ’20
Please add pull to refresh to SwiftUI
2
J2K05 OP
Jul ’20
This is a necessary feature that SwiftUI must have!!
1
BabyJ OP
Aug ’20
SwiftUI must have everything UIKit and AppKit have, and more!
1
wpcawe OP
Aug ’20
This is absolutely must feature, please implement as top priority.
1
recursion OP
Aug ’20
I have had success with the following native implementation from SwiftUI Lab: https://gist.github.com/swiftui-lab/3de557a513fbdb2d8fced41e40347e01

A few modifications had to be made including changes to use the new ProgressView etc.
0
liweiip OP
Aug ’20
I also want to know
1
rredxx OP
Sep ’20
I wonder why this is not included in SwiftUI !!! What were the developers thinking ?
0
Richiec OP
Sep ’20
I'm on iOS 13 and Xcode 11, so it may be different. I haven't seen the issues around navigation links described in the OP.

Overall, there's a couple of options as a starting point to play with:

https://github.com/siteline/SwiftUIRefresh uses UIKit to provide a fairly simple way of controlling the refresh action (but sounds like the approach described in the OP that creates problems with navigation links)

https://gist.github.com/swiftui-lab/3de557a513fbdb2d8fced41e40347e01 is a pure SwiftUI implementation, but doesn't work on some views (including a list view in NavigationView)
0
peterfromberlin OP
Sep ’20
I also want to know
1
nikitaame OP
Sep ’20
I also want to know
0
NielsSoerensen OP
Sep ’20
We need this now
1
dnbespalov OP
Oct ’20
I concur, the pull to refresh is essential for our app as well. At the moment we're assessing whether to switch back to UIKit because of the issues with Pull to refresh implementation (and crashes it brings), and because of other issues we faced (and most probably will face) until new SwiftUI will be more stable and new iOS versions will be installed by most of our users.
0
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