Core Data loads objects lazily, and it is supposed to bring in any objects as soon as you try to reference them.However I have encountered a couple of problems with this scheme.
I got a little problem. I use some images in my app. Today I wanted to replace them with new 开发者_Python百科ones. But when I build and run the project I still get the old ones. I tried to touch the
I get those two errors: - Can not use an object as parameter to a method - Incompatible types in return
I have an iPad app in which I\'m setting the shadow color of a UILabel in a UIView\'s initWithFrame: method. When I use the following syntax:
I\'ve got another problem in the same code... I\'m getting this error: initialization method -initWithCharactersNoCopy:length:freeWhenDone: cannot be sent to an abstract object of class NSString_Reg
In Ruby, there\'s Modules a开发者_如何学Pythonnd you can extend a class by \"mixing-in\" the module.
Stupid question, but why do we need to use \'retain\' when declaring a property?Doesn\'t it get retained anyway when it\'s assigned something?
in my MainViewController implementation, I need to access variables from two different classes. one of the classes is the AppDelegate and the other is the FlipsideViewController.
I have a UITabBarController as part of my app开发者_高级运维 delegate and I want to trap when the user touches a specific tab (the favourites) and force the table within it to reload the data.
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