Post not yet marked as solved
In WatchOS 6 a presented .sheet could be dismissed by swiping down or tapping on the navigationBarTitle. In the WatchOS 7 beta, presented sheets are no longer dismissible by either method...forcing the addition of a button to dismiss.
It appears as if .sheet is now acting as .fullScreenCover within WatchOS 7.
Anyone else running into this? Wondering if this is now expected behavior on WatchOS or if it's a bug...
Post not yet marked as solved
Ran into a challenging EXC_BAD_ACCESS iOS app crash that provides no real information on the culprit within my code. Tried Zombie Objects to no avail.
After some extensive trial and error, the issue seems to point to using a sorted and sectioned SwiftUI List pulled from a CoreData FetchRequest.
If I change from a List to a ScrollView/VStack, things work just fine without any other code changes. (Obviously not preferred since I'll lose native swipe-to-delete, etc).
Using the same List code, the issue didn't exist in iOS 13 nor did it seem to exist in earlier iOS 14 versions.
Some code snippets below showing how I'm handing the FetchRequest, Sort/Sectioning by date, and ultimate display. Also included a snippet of the crash log.
If anyone's run into a similar issue or has some insight, it would be appreciated. Wondering if the true root cause is an OS-level bug since the problem didn't exist before.
Fetch Request:
@FetchRequest(entity: StoredTrip.entity(), sortDescriptors: [
NSSortDescriptor(keyPath: \StoredTrip.blockStart, ascending: true)]) var storedTrips: FetchedResults<StoredTrip>
Sorting:
func update(_ result : FetchedResults<StoredTrip>)-> [[StoredTrip]] {
return Dictionary(grouping: result){ (element : StoredTrip) in
dateFormatter.string(from: element.blockStart!)
}.values.sorted() { $0[0].blockStart! > $1[0].blockStart! }
}
Display:
List {
ForEach(update(storedTrips), id: \.self) { (section: [StoredTrip]) in
Section(header: Text( self.dateFormatter.string(from: section[0].blockStart!)).padding(.top,2).padding(.bottom,2)) {
ForEach(section, id: \.self) { trip in
ListItem(trip: trip).environmentObject(self.dataStorage)
}
}
}
}
OS Version:					iPhone OS 14.2.1 (18B121)
Release Type:				User
Baseband Version:		1.14.06
Report Version:			104
Exception Type:	EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000008
VM Region Info: 0x8 is not in any region.	Bytes before following region: 4333666296
			REGION TYPE								 START - END			[ VSIZE] PRT/MAX SHRMOD	REGION DETAIL
			UNUSED SPACE AT START-->	
			__TEXT									 1024e8000-10251c000 [	208K] r-x/r-x SM=COW	....app/***
Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [1171]
Triggered by Thread:	0
Thread 0 name:	Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0	 AttributeGraph								 0x00000001aa77b91c AG::AttributeID::size+ 92444 () const + 44
1	 AttributeGraph								 0x00000001aa76f604 AG::Graph::add_indirect_attribute+ 42500 (AG::Subgraph&, AG::AttributeID, unsigned long, std::__1::optional<unsigned long>, bool) + 140
2	 AttributeGraph								 0x00000001aa781d80 (anonymous namespace)::create_indirect_attribute+ 118144 (unsigned int, std::__1::optional<unsigned long>) + 80
3	 SwiftUI											 0x00000001890a3c0c partial apply for thunk for @callee_guaranteed () -> + 9710604 (@unowned IndirectAttribute<A>) + 32
4	 SwiftUI											 0x00000001890a3a1c closure #1 in AGSubgraphRef.apply<A>+ 9710108 (_:) + 72
5	 SwiftUI											 0x00000001890a3810 Attribute.makeReusable+ 9709584 (indirectMap:) + 276
Eboles.