The following only happens on iOS (not iOS simulator on the Mac or UWP):
I close the Urho.Application using the Exit() method, then set the value of that instance to null, but when I try to show a new instance of the application using await Urho.Application.Show<T>() the application appears for a few seconds before crashing the Xamarin.Forms app.
Xamarin.Forms 2.3.3.175
UrhoSharp.Forms 1.2.21
Debug output looks like this:
2017-03-09 09:09:00.862 iOS[701:310330] Created 1 worker thread
2017-03-09 09:09:00.872 iOS[701:310330] Added resource package ...
2017-03-09 09:09:00.872 iOS[701:310330] Added resource path ...
2017-03-09 09:09:00.922 iOS[701:310330] Set screen mode 2048x1226 windowed resizable
2017-03-09 09:09:00.935 iOS[701:310330] Initialized input
2017-03-09 09:09:00.935 iOS[701:310330] Initialized user interface
2017-03-09 09:09:00.965 iOS[701:310330] Initialized renderer
2017-03-09 09:09:01.373 iOS[701:310330] Set audio mode 44100 Hz stereo interpolated
2017-03-09 09:09:01.374 iOS[701:310330] Initialized engine
Thread finished: <Thread Pool> #11
The thread 'Unknown' (0xb) has exited with code 0 (0x0).
Thread finished: <Thread Pool> #5
The thread 'Unknown' (0x5) has exited with code 0 (0x0).
2017-03-09 09:09:22.354 iOS[701:310330] Created 1 worker thread
2017-03-09 09:09:22.357 iOS[701:310330] Added resource package ...
2017-03-09 09:09:22.357 iOS[701:310330] Added resource path ...
2017-03-09 09:09:22.377 iOS[701:310330] Set screen mode 2048x1226 windowed resizable
2017-03-09 09:09:22.378 iOS[701:310330] Initialized input
2017-03-09 09:09:22.379 iOS[701:310330] Initialized user interface
2017-03-09 09:09:22.383 iOS[701:310330] Initialized renderer
2017-03-09 09:09:22.385 iOS[701:310330] Could not initialize audio output
2017-03-09 09:09:22.386 iOS[701:310330] Initialized engine
Thread finished: <Thread Pool> #8
The thread 'Unknown' (0x8) has exited with code 0 (0x0).
Thread finished: <Thread Pool> #4
The thread 'Unknown' (0x4) has exited with code 0 (0x0).
Thread finished: <Thread Pool> #3
The thread 'Unknown' (0x3) has exited with code 0 (0x0).
Thread finished: <Thread Pool> #13
The thread 'Unknown' (0xd) has exited with code 0 (0x0).
Thread finished: <Thread Pool> #10
The thread 'Unknown' (0xa) has exited with code 0 (0x0).
Thread finished: <Thread Pool> #12
The thread 'Unknown' (0xc) has exited with code 0 (0x0).
The app has been terminated.The iOS crash report has the following info:
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_PROTECTION_FAILURE at 0x000000016fcc7f80
Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]
Triggered by Thread: 0