Hi. Striggling with that for approximately a month. Apple claims the app crashes on startup, but working for me on devices, simulators, debug/release/adhoc without any problems. Was crashing even on TestFlight testing, after 8 attempts got it accepted for external testers (Crashlytics reported it crashed for them though). The crashes occur in function which saves cached images to the Caches directory. First versions was written using NSSearchPathForDirectoriesInDomains, then I've changed it to NSFileManager but without any luck.
The code:
class SharedAux {
static let shared = SharedAux()
func downloadAndCacheImg(url: String?, cell: AppCell, tableView: UITableView, indexPath: NSIndexPath) {
if url == nil { return }
let charactersToRemove = NSCharacterSet.alphanumericCharacterSet().invertedSet
let cacheFilename = "".join(url!.componentsSeparatedByCharactersInSet(charactersToRemove))
if let fullFilename = prefixFilenameWithDirectory(cacheFilename), img = UIImage(named: fullFilename) {
cell.setAppImage(img)
return
}
if let nsUrl = NSURL(string: url!) {
NSURLConnection.sendAsynchronousRequest(NSURLRequest(URL: nsUrl), queue: NSOperationQueue.mainQueue(), completionHandler: { (response, data, error) -> Void in
if let img = UIImage(data: data) { // CRASH HERE
if let fullFilename = self.prefixFilenameWithDirectory(cacheFilename) {
data.writeToFile(fullFilename, atomically: true)
}
if let cell = tableView.cellForRowAtIndexPath(indexPath) as? AppCell {
cell.setAppImage(img)
}
}
})
}
}
func prefixFilenameWithDirectory(filename: String) -> String? {
var dir = NSFileManager.defaultManager().URLForDirectory(.CachesDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true, error: nil)
dir = dir?.URLByAppendingPathComponent(filename)
return dir?.path
}The symbolicated crash log:
Incident Identifier: 79EF86C1-42A2-4398-AE8D-96294CA44779
CrashReporter Key: 9e383a79712622f70c441c3e542088b4ff8f5801
Hardware Model: ***
Process: yyy [2793]
Path: /private/var/mobile/Containers/Bundle/Application/161F43F5-7E46-4963-AC86-B1CF5634FB47/yyy.app/yyy
Identifier: com.rshev.yyy
Version: 80 (0.9)
Code Type: ARM-64 (Native)
Parent Process: launchd [1]
Date/Time: 2015-07-02 16:11:15.810 -0700
Launch Time: 2015-07-02 16:11:07.032 -0700
OS Version: iOS 8.3 (12F69)
Report Version: 105
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x0000000100099e54
Triggered by Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 navTo 0x0000000100099e54 navTo.SharedAux.(downloadAndCacheImg (navTo.SharedAux) -> (Swift.String?, cell : navTo.AppCell, tableView : ObjectiveC.UITableView, indexPath : ObjectiveC.NSIndexPath) -> ()).(closure #1) (SharedAux.swift:29)
1 navTo 0x0000000100099628 partial apply forwarder for navTo.SharedAux.(downloadAndCacheImg (navTo.SharedAux) -> (Swift.String?, cell : navTo.AppCell, tableView : ObjectiveC.UITableView, indexPath : ObjectiveC.NSIndexPath) -> ()).(closure #1) (SharedAux.swift:0)
2 CFNetwork 0x000000018546b30c 0x1853cc000 + 652044
3 Foundation 0x000000018698f1c0 0x1868b4000 + 897472
4 Foundation 0x00000001868e0600 0x1868b4000 + 181760
5 Foundation 0x00000001868d01c8 0x1868b4000 + 115144
6 Foundation 0x0000000186991f24 0x1868b4000 + 909092
7 libdispatch.dylib 0x0000000197819950 0x197818000 + 6480
8 libdispatch.dylib 0x000000019781e208 0x197818000 + 25096
9 CoreFoundation 0x0000000185a5f7f4 0x185980000 + 915444
10 CoreFoundation 0x0000000185a5d89c 0x185980000 + 907420
11 CoreFoundation 0x00000001859892d0 0x185980000 + 37584
12 GraphicsServices 0x000000018f0776f8 0x18f06c000 + 46840
13 UIKit 0x000000018a54efa8 0x18a4d8000 + 487336
14 navTo 0x0000000100098428 main (AppDelegate.swift:15)
15 libdyld.dylib 0x0000000197846a04 0x197844000 + 10756
Thread 1 name: Dispatch queue: com.apple.libdispatch-managerPlease give any ideas, really stuck here.
It it truly is crashing at line 17 as you suggest its probably because you are assuming you did not get an error and that "data" is valid. Perhaps the reason you are seeing from other users is that you have a firewall or other URL related issue where you have access, but others do not?
