Getting a contact's mail on the iPhone
Question
I have an application with kind-of "share" function. How can I list the contacts stored on the iPhone to the user?
Can I do it without exiting my own app (required)?
Can I have the contacts content without opening any external view?
I assume it is somewhat secured.
Solution
There is a NavigationController called ABPeoplePickerNavigationController that you can use in your app to select contacts or contact info. This may get you down the right path.
https://developer.apple.com/documentation/addressbookui/abpeoplepickernavigationcontroller
Class description: The ABPeoplePickerNavigationController class (whose instances are known as people-picker navigation controllers) implements a view controller that manages a set of views that allow the user to select a contact or one of its contact-information items from an address book.