HockeyApp crash, forked Queues, iOS, Swift - ios

Question

Using someone else's framework from GitHub for a UIButton Process effect.
Works fine when installed through latest XCode, but app crashes as soon as button starts animation, if installed through HockeyApp.
Here is the Animation Function in question:
private func startAnimating() {
isAnimating = true
views = []
for i in 0..<colors.count {
let view = UIView(frame: lineRect())
view.backgroundColor = colors[i]
views.append(view)
}
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), { () -> Void in
var count: Int = 0
while self.isAnimating {
if count == self.views.count {
count = 0
}
var next = false
dispatch_async(dispatch_get_main_queue(), {
UIView.animateWithDuration(self.duration, delay: 0, options: [], animations: { () -> Void in
if self.isAnimating {
if !self.views.isEmpty {
self.addSubview(self.views[count])
self.views[count].frame.origin = CGPoint(x: self.bounds.origin.x, y: 0)
self.views[count].frame.size.width = self.frame.width
}
}
}, completion: { (Bool) -> Void in
if self.isAnimating {
var lastIndex = count - 1
if lastIndex < 0 {
lastIndex = self.colors.count - 1
}
self.views[lastIndex].frame = self.lineRect()
self.views[lastIndex].removeFromSuperview()
}
next = true
})
})
// Let's wait until the current animation is done before moving forward
while !next {
}
count++
}
})
}
HockeyApp points to the first reference of 'views' inside the second Queue, which in this case is the empty check ( I've added that, but if not there it will point to the next reference ) :
UIView.animateWithDuration(self.duration, delay: 0, options: [], animations: { () -> Void in
if self.isAnimating {
if !self.views.isEmpty {
self.addSubview(self.views[count])
self.views[count].frame.origin = CGPoint(x: self.bounds.origin.x, y: 0)
self.views[count].frame.size.width = self.frame.width
}
}
Here is the key piece of the HockeyApp's crash report:
Date/Time: 2016-02-03T18:01:01Z
Launch Time: 2016-02-03T18:00:33Z
OS Version: iPhone OS 9.2.1 (13D15)
Report Version: 104
Exception Type: SIGTRAP
Exception Codes: #0 at 0x100099080
Crashed Thread: 0
Application Specific Information:
Selector name found in current argument registers: release
Thread 0 Crashed:
0 barscan1 0x0000000100099080 barscan1.ProcessView.((startAnimating in _126B4789AED4AC2C363037724C3D4FEF) (barscan1.ProcessView) -> () -> ()).(closure #1).(closure #1).(closure #1) (ProcessView.swift:78)
1 UIKit 0x0000000185eb8210 +[UIView(UIViewAnimationWithBlocks) _setupAnimationWithDuration:delay:view:options:factory:animations:start:animationStateGenerator:completion:] + 616
2 UIKit 0x0000000185ecfc58 +[UIView(UIViewAnimationWithBlocks) animateWithDuration:delay:options:animations:completion:] + 104
3 barscan1 0x0000000100098d90 barscan1.ProcessView.((startAnimating in _126B4789AED4AC2C363037724C3D4FEF) (barscan1.ProcessView) -> () -> ()).(closure #1).(closure #1) (ProcessView.swift:94)
4 libdispatch.dylib 0x0000000180be1630 _dispatch_call_block_and_release + 20
5 libdispatch.dylib 0x0000000180be15f0 _dispatch_client_callout + 12
6 libdispatch.dylib 0x0000000180be6cf8 _dispatch_main_queue_callback_4CF + 1840
7 CoreFoundation 0x0000000181144bb0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 8
8 CoreFoundation 0x0000000181142a18 __CFRunLoopRun + 1624
9 CoreFoundation 0x0000000181071680 CFRunLoopRunSpecific + 380
10 GraphicsServices 0x0000000182580088 GSEventRunModal + 176
11 UIKit 0x0000000185ee8d90 UIApplicationMain + 200
12 barscan1 0x00000001000aa32c main (AppDelegate.swift:15)
13 ??? 0x0000000180c128b8 0x0 + 0
Any help is greatly appreciated !
Thanks !

Answer 1

Turned out this is a problem with Apple's Swift Optimization - set it to NONE and now the problem is gone.