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Questions tagged objective-c

2098 questions · page 5 of 42

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20
votes
4
answers

Is it better to write 0.0, 0.0f or .0f instead of simple 0 for supposed float or double values

ios objective-c
asked 2013-01-13T11:15:11.387
16
votes
1
answers

Objective-C Properties - what does "id" mean?

ios objective-c ios5
asked 2013-01-10T22:45:38.003
8
votes
1
answers

Casting nil in block

iphone objective-c cocoa-touch objective-c-blocks
asked 2013-01-10T13:23:43.010
8
votes
4
answers

Custom "Pressed" UIBarButtonItem Backgrounds

ios objective-c uiimage uibarbuttonitem
asked 2013-01-10T03:33:18.610
37
votes
4
answers

difference between presentViewController and UINavigationController?

ios objective-c cocoa-touch uiviewcontroller
asked 2013-01-09T10:22:33.083
35
votes
1
answers

ARC __bridge modifiers demystified

objective-c automatic-ref-counting
asked 2013-01-08T03:53:35.600
10
votes
2
answers

Parse Objective-C printf Format Strings?

objective-c c printf
asked 2013-01-07T18:13:48.830
13
votes
1
answers

Creating sections with NSFetchedResultsController, on the fly

ios objective-c
asked 2013-01-05T11:50:12.550
9
votes
4
answers

How to set UIDatePicker to an initial date other than "Today"

objective-c ios6 uidatepicker
asked 2013-01-04T20:27:39.737
12
votes
2
answers

Can we invite people to use our app or send friend request from the app via Facebook in iOS 5?

objective-c facebook facebook-graph-api ios5
asked 2013-01-04T13:07:37.400
17
votes
1
answers

Stacking UIViews with blend modes in iOS

objective-c ios xcode uiview calayer
asked 2013-01-03T23:28:18.760
9
votes
4
answers

UICollectionViewCell Padding

objective-c uicollectionview uicollectionviewcell
asked 2013-01-03T18:58:34.823
16
votes
2
answers

Create a standalone view in storyboard to use programmatically

objective-c ios xcode uistoryboard
asked 2013-01-03T13:07:41.830
8
votes
3
answers

Why does [NSDate date] return id?

objective-c nsdate
asked 2013-01-03T09:41:47.343
26
votes
1
answers

iphone app allow background music to continue to play

iphone objective-c ios
asked 2013-01-02T12:49:54.483
11
votes
4
answers

iOS: Change interface orientation when pop view controller

objective-c ios screen-orientation uiinterfaceorientation
asked 2012-12-28T13:46:33.163
10
votes
4
answers

How to pass float value where datatype is CMTime?

ios objective-c iphone audio mixing
asked 2012-12-27T12:55:59.333
24
votes
5
answers

How can I get a hex string from UIColor or from rgb

objective-c
asked 2012-12-27T08:46:38.283
24
votes
3
answers

Scale UIView with the top center as the anchor point?

objective-c uiview calayer
asked 2012-12-23T01:33:27.440
8
votes
2
answers

[__NSCFConstantString pointSize]: unrecognized selector sent to instanc

objective-c macos cocoa nsattributedstring nsalert
asked 2012-12-22T08:59:22.957
10
votes
4
answers

dispatch_sync always scheduling a block on Main Thread

ios objective-c cocoa-touch cocoa grand-central-dispatch
asked 2012-12-20T12:17:07.723
9
votes
2
answers

AutoreleasePool not catching breakpoints, no warnings, no reporting in Instruments Leaks

objective-c xcode cocoa memory-management
asked 2012-12-19T16:17:42.417
11
votes
1
answers

Privately implementing a protocol?

objective-c cocoa-touch
asked 2012-12-19T06:13:34.430
8
votes
2
answers

How do i add add a navigation controller to a xib

objective-c ios xcode cocoa-touch
asked 2012-12-18T11:30:20.070
13
votes
2
answers

Repeating OpenGL-es texture bound to hills in cocos2d 2.0

objective-c opengl-es cocos2d-iphone opengl-es-2.0
asked 2012-12-17T13:57:08.073
15
votes
2
answers

How to load my tableview with a pagination?

iphone objective-c ios ipad uitableview
asked 2012-12-17T10:04:53.290
16
votes
4
answers

In ARC do we need to send removeObserver: explicitly?

objective-c cocoa automatic-ref-counting nsnotificationcenter
asked 2012-12-17T09:43:42.233
20
votes
2
answers

UIWebView Load URL with parameters

iphone objective-c url uiwebview nsuserdefaults
asked 2012-12-16T05:38:20.510
11
votes
3
answers

What is the purpose of the -self method in NSObject-conformant classes?

objective-c nsobject foundation
asked 2012-12-15T20:14:42.853
9
votes
1
answers

Looping AVAudioPlayer w/o Gap

objective-c avaudioplayer avaudiorecorder
asked 2012-12-15T06:23:49.070
24
votes
4
answers

Can I declare dispatch_once_t predicate as a member variable instead of static?

objective-c grand-central-dispatch
asked 2012-12-13T08:45:38.963
25
votes
2
answers

How to add more tabs in tab view controller storyboard application?

iphone objective-c ios tabs storyboard
asked 2012-12-11T12:25:29.317
9
votes
9
answers

UILabel truncate text not working

objective-c ios uilabel
asked 2012-12-10T04:03:24.250
9
votes
3
answers

Try-Catch equivalent in Objective-C

objective-c
asked 2012-12-08T04:52:49.383
16
votes
3
answers

How would I set up a UIPickerView?

ios objective-c xcode uipickerview
asked 2012-12-07T03:46:02.897
16
votes
2
answers

How do you implement NSPageController to navigate through a webView's history

objective-c cocoa view webview
asked 2012-12-06T15:42:11.773
8
votes
2
answers

NSNotificationCenter and safe multithreading

objective-c multithreading nsnotificationcenter
asked 2012-12-06T13:48:56.883
10
votes
7
answers

UILabel with rounded corner (Xcode 4.5 and iOS 6)

objective-c ios6 uilabel
asked 2012-12-06T11:36:23.267
14
votes
4
answers

Rotate CGPath without changing its position

iphone objective-c ios core-graphics
asked 2012-12-06T06:48:57.173
33
votes
4
answers

Finding distance from RSSI value of Bluetooth Low Energy enabled device

iphone objective-c ios7 bluetooth-lowenergy
asked 2012-12-04T14:54:01.853
9
votes
3
answers

dynamic string format with NSString stringWithFormat

objective-c ios stringwithformat
asked 2012-12-04T04:40:04.383
15
votes
4
answers

How to find indexPath for tapped accessory button in tableView

objective-c ios uitableview segue
asked 2012-12-03T19:10:19.923
11
votes
1
answers

how to resolve hostname from ip address in iOS Objective-C

objective-c ios hostname
asked 2012-11-30T16:18:10.333
13
votes
3
answers

Cocoapods questions: "How does cocoapods know when a new version of a library is available?" etc

objective-c xcode cocoapods
asked 2012-11-30T01:32:12.393
11
votes
1
answers

Change Authorization Dialog shown by AuthorizationCreate()

objective-c macos cocoa security
asked 2012-11-29T21:06:06.883
8
votes
5
answers

Objective c add string object to an array

iphone objective-c ios arrays ipad
asked 2012-11-29T15:56:51.780
167
votes
25
answers

boundingRectWithSize for NSAttributedString returning wrong size

objective-c nsattributedstring
asked 2012-11-29T07:48:50.137
32
votes
6
answers

Is there a way to change the text position in UITabBar or UITabBarItem?

ios objective-c xcode4.5 uitabbar uitabbaritem
asked 2012-11-29T03:18:27.493
11
votes
3
answers

get NSString first word only

objective-c
asked 2012-11-28T09:23:51.677
11
votes
2
answers

I don't know what patterns of block I should avoid for the literal scope in objective-c

ios objective-c block
asked 2012-11-27T23:56:29.653
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