Online resources to learn Apple's Swift Language
How to detect when an iOS app crashes
Great post on StackOverflow about detecting when an app is killed, due to an exception, a signal, etc.
Advanced Breakpoints in Xcode
Xcode supports the possibility of setting symbolic breakpoints to inspect the status of your app when some odd condition occurs.
Year-end encryption export declaration
1. Visit the report generator
2. Fill the data (specify N/A when not sure because it likely does no apply)
3. Choose 5D992 for Export Control Classification Number
4. Select MMKT for Authorization Type
Xcode Layout Constraints Debugging
When you get the dreadful “will attempt to recover by breaking constraint” warning in Xcode, just know you can use the constraint address to filter the view hierarchy in “View Debugging/Capture View Hierarchy” and identify the broken constraint.