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Update: I also found out that loading a webarchive in mobile safari made from the mobile wikipedia site will cause a crash in iOS 7. Here is a link to a new webarchive that is causing problems and one from the old version of Wikipedia that works fine. I've changed the file extension to "plist" so they can easily be edited.
Apr 27, 2011 · This isn't Objective-C, it's the "C preprocessor", which is basically a specialized text parsing system that is run on every source file in your project before it's actually compiled. It's the same system that processes the #import directives. Think of it as providing "meta" compiling for your code.
193. Objective-C++ is simply source code that mixes Objective-C classes and C++ classes (two entirely unrelated entities). Your C++ code will work, just as before, and the resulting executable will be linked with the Objective-C runtime, so your Objective-C classes will work as well. You can definitely use it in Xcode -- name your files with ...
Aug 8, 2015 · 6. I want to redefine an initialiser which was previously declared as NS_UNAVAILABLE by the parent class. Such as: It would make sense that any calls to child initialisers need to propagate to the parent's designated initialiser. Let's say that default arguments make sense on the child class and therefore: Even though the initialiser is ...
Apr 18, 2014 · Objective-C is a superset of C. This means that all code valid in C is also valid in Objective-C. A straight copy and past will a) probably not work because implementation of functions is different in Objective-C b) not be wise. Objective-C was made for a reason. It works great for its intended purpose.
May 9, 2009 · A property is a friendly way of implementing a getter/setter for some value, with additional useful features and syntax. A property can be backed by an instance variable, but you can also define the getter/setter to do something a bit more dynamic, e.g. you might define a lowerCase property on a string which dynamically creates the result rather than returning the value of some member variable.
Oct 29, 2009 · You need to use IBOutlet and IBAction if you are using interface builder (hence the IB prefix) for your GUI components. IBOutlet is needed to associate properties in your application with components in IB, and IBAction is used to allow your methods to be associated with actions in IB. For example, suppose you define a button and label in IB.
