Crash -- HeroViewPropertyViewContext.swift line 56

[Patrick Meyer]

partial apply for closure #2 in HeroViewPropertyViewContext.resume(timePassed:reverse:)

Crashed: com.apple.main-thread 0 Hero 0x58598 partial apply for closure #2 in HeroViewPropertyViewContext.resume(timePassed:reverse:) + 56 (HeroViewPropertyViewContext.swift:56) 1 Hero 0x3b4a8 thunk for @escaping @callee_guaranteed () -> () + 28 (<compiler-generated>:28) 2 libdispatch.dylib 0x1e68 _dispatch_call_block_and_release + 32 3 libdispatch.dylib 0x3a2c _dispatch_client_callout + 20 4 libdispatch.dylib 0x11f48 _dispatch_main_queue_drain + 928 5 libdispatch.dylib 0x11b98 _dispatch_main_queue_callback_4CF + 44 6 CoreFoundation 0x522f0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 7 CoreFoundation 0xc1f4 __CFRunLoopRun + 2532 8 CoreFoundation 0x1f6b8 CFRunLoopRunSpecific + 600 9 GraphicsServices 0x1374 GSEventRunModal + 164 10 UIKitCore 0x513e88 -[UIApplication _run] + 1100 11 UIKitCore 0x2955ec UIApplicationMain + 364 12 Mood App 0x5294 main + 25 (AppDelegate.swift:25) 13 ??? 0x1038e9ce4 (Missing)

Appears line 52 needs some optional question marks.

[Joe Mattiello]

Maybe this is a divide by zero,

      viewPropertyAnimator.fractionComplete = CGFloat(1.0 - timePassed / duration)

I'll update this function in a PR you can test.

[Joe Mattiello]

Created #736