Cannot receive crash reports - swift

Question

As Parse crash report is depreciating, we are moving to Google Analytics.
I follow the guide to and receive view tracking and exception reports successfully.
here is how I setup the GA
// Configure tracker from GoogleService-Info.plist.
var configureError:NSError?
GGLContext.sharedInstance().configureWithError(&configureError)
assert(configureError == nil, "Error configuring Google services: \(configureError)")
// Optional: configure GAI options.
let gai = GAI.sharedInstance()
gai.trackerWithTrackingId("UA-XXXXXX-1")
gai.trackUncaughtExceptions = true // report uncaught exceptions
gai.dispatchInterval = 1
gai.defaultTracker.allowIDFACollection = true
#if DEBUG
gai.logger.logLevel = GAILogLevel.Verbose // remove before app release
#endif
And I tried to make a crash by (in AppDelegate.swift didFinishLaunchingWithOptions ):
delay(20.0) { () -> () in
let _ = [String]()[10];
}
And I can't get any crash report from GA dashboard.
I've tried to move this line to an IBAction, but failed.
My testing steps:
debug on device ->(20s)-> crash
debug on device 2nd time ->(20s)-> crash
run the app without debugging ->(20s)-> crash
run the app without debugging ->(20s)-> crash

Answer 1

It turns out that Google Analytics only supports reporting of uncaught Objective-C exceptions. It does not report Swift throws. The following creates a Swift throw (and is not reported by GA):
let crashArray:Array = [0]
crashArray[1]
The following does create an Objective-C exception and is reported by GA:
let array = NSArray()
let _ = array.objectAtIndex(99)
Some useful information here...
How should I use NSSetUncaughtExceptionHandler in Swift
We can force an Objective-C exception from within Swift by using the following command (i.e. from within a catch).
let error = NSError(domain: "Some error.", code: 0, userInfo: nil)
NSException.raise("Exception", format:"Error: %#", arguments:getVaList([error ?? "nil"]))
There is not a way I can find to automatically capture all throws and relay them as an Objective-C exception.