Crash sectionHeaderTopPadding on iOS 14

Question

nkvnkv OP

Created Oct ’21

Replies 3

Boosts 0

Views 1k

Participants 3

Firebase logged crash

Crashing on exception: -[UITableView setSectionHeaderTopPadding:]: unrecognized selector sent to instance 0x1589ca800

Снимок экрана 2021-10-15 в 13.12.27.png

After checking code everywhere is call

if #available(iOS 15.0, *) {
    tableView.sectionHeaderTopPadding = 0.0
}

Stack trace:

Crashed: com.apple.main-thread
0  AppKit                         0x3dda28 -[NSApplication _crashOnException:] + 372
1  AppKit                         0x3dd70c -[NSApplication reportException:] + 588
2  AppKit                         0x31f10 -[NSApplication run] + 792
3  AppKit                         0x3878 NSApplicationMain + 1064
4  AppKit                         0x2f2ad0 _NSApplicationMainWithInfoDictionary + 22
5  UIKitMacHelper                 0x4e18 UINSApplicationMain + 1280
6  UIKitCore                      0x2b1c UIApplicationMain + 164
7  TARGET                 0x11358 main + 20 (AppDelegate.swift:20)
8  libdyld.dylib                  0x18430 start + 4

Find out, that crash occures when using macbook with m1 processor.

Answered by ForumsContributor in 692227022

I was seeing the same crash on M1 Macs. Apparently it's a bug with the availability check in Swift. It's a known issue that's listed in the Xcode 13 release notes .

The suggested workaround is to add a check for operatingSystemVersion.majorVersion following the availability check.

For example:

if #available(iOS 15, *), ProcessInfo.processInfo.operatingSystemVersion.majorVersion >= 15 {
     tableView.sectionHeaderTopPadding = 0.0
}

Here's the forum post where I found the solution https://developer.apple.com/forums/thread/691559

Boost

Answer 1

mokic-gss-media OP

Oct ’21

Hi, I have the same crash. Did you find some solution or workaround for this issue?

0

Answer 2

DTS Engineer OP

Apple

Oct ’21

I have the same crash.

Can you post an Apple crash report for this issue? See Posting a Crash Report for advice on how to do that.

Share and Enjoy
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0

Answer 3

ForumsContributor OP

Oct ’21

Accepted Answer

I was seeing the same crash on M1 Macs. Apparently it's a bug with the availability check in Swift. It's a known issue that's listed in the Xcode 13 release notes .

The suggested workaround is to add a check for operatingSystemVersion.majorVersion following the availability check.

For example:

if #available(iOS 15, *), ProcessInfo.processInfo.operatingSystemVersion.majorVersion >= 15 {
     tableView.sectionHeaderTopPadding = 0.0
}

Here's the forum post where I found the solution https://developer.apple.com/forums/thread/691559

0