june 20

q

What are the inits for UIPickerView

issue

email class was not working with an "unrecognized selector" message or something like that.

solution

check the import statements:

need to use import MessageUI

note

There are several things that need to be done in order to present a view controller programmatically. See apple docs. But the main step is

func presentViewController(_ viewControllerToPresent: UIViewController,

                  animated flag: Bool,

                completion completion: (() -> Void)?)

note

for some reason tried to use the following to convert a string to an NSData

NSData* dataFromString = [NSKeyedArchiver archivedDataWithRootObject: aString]

note

sending files by email sometimes does not occur < a minute as it should. Often it is much faster but the worst case time is a problem. Opening the mail app seems to force an update.