Top "Objective-c" questions

This tag should be used only on questions that are about Objective-C features or depend on code in the language.

How to dump data stored in objective-c object (NSArray or NSDictionary)

Forgive me for a potentially silly question here, but in other programming languages (scripting ones like PHP or Perl) it …

iphone objective-c gdb dump
no valid 'aps-environment' entitlement string found for application

I am trying to configure my app to support push notification, but keep getting this error: Failed to get token, …

objective-c apple-push-notifications
Dynamic size UICollectionView cell

1) How can i achieve as shown in image with UICollectionView? 2) I've tried -(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout …

ios objective-c uicollectionview uicollectionviewcell uicollectionviewlayout
Understanding NSRunLoop

Can anyone explain for what is NSRunLoop? so as I know NSRunLoop is a something connected with NSThread right? So …

ios objective-c cocoa-touch nsrunloop
get values of particular key in nsdictionary

I saved the json parsing result in a dictionary which look like: { "statusCode":"200", "body":[ { "status":"success", "remarks":null } ], "data":[ "abcd":[ { "…

iphone ios objective-c nsdictionary
How to do a native "Pulse effect" animation on a UIButton - iOS

I would like to have some kind of pulse animation (infinite loop "scale in - scale out") on a UIButton …

ios objective-c animation uikit
how to use the object property of NSNotificationcenter

Could somebody please show me how to use the object property on NSNotifcationCenter. I want to be able to use …

iphone objective-c cocoa nsnotificationcenter
What do the plus and minus signs mean in Objective-C next to a method?

In Objective-C, I would like to know what the + and - signs next to a method definition mean. - (void)…

objective-c syntax method-declaration
CFBundleVersion in the Info.plist Upload Error

"The binary you uploaded was invalid. The key CFBundleVersion in the Info.plist file must contain a higher version than …

objective-c upload plist cfbundleidentifier
How to include and use new fonts in iPhone SDK?

I want to use font "MgOpen Modata" in my iphone App. But I dont see it in the font list …

iphone objective-c cocoa-touch iphone-sdk-3.0 ios4