But after going through several blog posts and StackOverflow answers, I came to conclusion that it is ok to declare it as `strong` as long as you are using ARC. > Some people mentioned to use `copy` for block. Chapter 2 Objective-C Basics If youve never programmed anything before, youll have a. Now declare a property for a given block (nonatomic, strong) StringConverter stringToIntConverterBlock Typedef NSString*(^StringConverter)(NSInteger) ( The block we are about to declare takes NSInteger as an input and returns converted NSString object back) If you want to declare block as a propertyįirst use typedef to declare block parameters and return type as follows On the left, select Cocoa Touch under iOS and select the second option, UIViewController subclass. Still can never remember the syntax □- Jordan Morgan October 26, 2016 In Xcode, go to File > New > New File (Command-N). This post is inspired by following Tweet when it was mentioned after years of experience, developer still could not remember the blocks syntax.Īfter years of iOS development, I finally caved & made an xcode snip of an Obj-C block as a property.
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