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Questions tagged objective-c

2098 questions · page 2 of 42

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50
votes
4
answers

Apple Mach-O Linker Warning Directory not found

iphone ios objective-c xcode
asked 2013-05-20T07:56:10.757
46
votes
9
answers

How can I center rows in UICollectionView?

ios objective-c uicollectionview
asked 2013-05-14T13:12:56.263
48
votes
8
answers

Change font of back navigation bar button

ios objective-c uinavigationbar uibarbuttonitem uifont
asked 2013-05-14T05:06:02.680
11
votes
2
answers

Perform action on the hour, every hour, with ReactiveCocoa

ios objective-c reactive-programming reactive-cocoa
asked 2013-05-13T13:40:50.437
25
votes
6
answers

Should views hold model references?

ios objective-c oop design-patterns model-view-controller
asked 2013-05-13T07:00:52.743
14
votes
5
answers

Drag out to delete item

objective-c macos cocoa
asked 2013-05-12T17:06:14.370
21
votes
3
answers

Objective-C: Convert the entire double value to string without losing data

objective-c string nsstring double
asked 2013-05-10T17:42:12.513
30
votes
4
answers

How do I convert NSUInteger value to int value in objectiveC?

ios objective-c int nsuinteger
asked 2013-05-10T12:07:56.163
8
votes
3
answers

Drawing a polygon with one color for stroke, and a different one for fill?

ios objective-c uiview cgcontext
asked 2013-05-09T13:08:22.817
17
votes
3
answers

iVars references strong, weak or what?

ios objective-c memory-management instance-variables
asked 2013-05-09T12:03:13.597
21
votes
5
answers

In an AppDelegate, how is the main UIWindow instantiated?

ios objective-c xcode
asked 2013-05-08T16:32:20.490
55
votes
15
answers

UICollectionView only calling didSelectItemAtIndexPath if user double taps, will not call when user single taps

ios objective-c ipad uicollectionview uicollectionviewcell
asked 2013-05-08T15:34:41.427
18
votes
7
answers

Prevent user from setting cursor position on UITextField

iphone ios objective-c
asked 2013-05-07T12:29:45.070
19
votes
2
answers

NSDictionary dictionary vs init alloc vs new

objective-c automatic-ref-counting
asked 2013-05-06T22:42:04.833
10
votes
3
answers

iOS objective-C: using modulo on a float to get "inches" from Feet

ios objective-c c modulo
asked 2013-05-06T07:40:18.493
80
votes
5
answers

NSAttributedString background color and rounded corners

ios objective-c uiview quartz-graphics nsattributedstring
asked 2013-05-03T15:23:43.390
12
votes
4
answers

CALayer drawInContext can't draw 1px lines on retina displays

iphone ios objective-c calayer pixel
asked 2013-05-02T06:09:30.313
8
votes
3
answers

iOS - Crash at loadViewIfRequired

iphone objective-c crash-reports
asked 2013-05-01T17:17:33.440
10
votes
2
answers

Capture only UIView 2 finger UIPanGestureRecognizer

ios objective-c ipad uigesturerecognizer uipangesturerecognizer
asked 2013-04-30T13:36:42.647
21
votes
2
answers

MAX / MIN function in Objective C that avoid casting issues

ios objective-c
asked 2013-04-29T01:10:15.187
8
votes
4
answers

AutoLayout constraints for a autoresizing view created in ViewController's loadView

ios objective-c ios6 autolayout
asked 2013-04-28T09:37:03.993
9
votes
2
answers

Core data custom migration

ios objective-c core-data core-data-migration
asked 2013-04-25T18:37:05.920
22
votes
2
answers

Why does giving addArcWithCenter a startAngle of 0 degrees make it start at 90 degrees?

ios objective-c geometry core-animation uibezierpath
asked 2013-04-24T12:38:51.387
26
votes
5
answers

QR Code Scanning in ios application

iphone ios objective-c qr-code
asked 2013-04-23T10:09:34.117
11
votes
2
answers

Purpose of 'instancetype' keyword in 'objectWith' methods?

objective-c
asked 2013-04-23T06:29:48.773
9
votes
1
answers

How to assign File's Owner when using UITableView registerNib: to load a custom UITableViewCell from nib?

ios objective-c uitableview
asked 2013-04-23T03:20:30.107
38
votes
9
answers

iOS: present view controller programmatically

ios objective-c uiviewcontroller uistoryboard presentviewcontroller
asked 2013-04-22T17:08:24.140
72
votes
8
answers

How to call a View Controller programmatically?

ios objective-c uiviewcontroller uistoryboard presentviewcontroller
asked 2013-04-21T17:55:11.580
218
votes
19
answers

How can I tell when UITableView has completed ReloadData?

objective-c uitableview reloaddata
asked 2013-04-17T22:41:34.417
8
votes
2
answers

MBProgressHud does not work on navigation bar

objective-c mbprogresshud
asked 2013-04-17T17:03:57.707
23
votes
3
answers

Avoid extra static variables for associated objects keys

objective-c objective-c-runtime associated-object
asked 2013-04-15T17:11:58.717
9
votes
1
answers

WebView page count

objective-c cocoa webview
asked 2013-04-12T11:27:28.053
10
votes
3
answers

How to get NSString size when NSString includes emojis?

iphone ios objective-c nsstring emoji
asked 2013-04-12T07:29:08.533
11
votes
2
answers

A-Z Index from NSFetchedResultsController with individual section headers within each letter?

ios objective-c core-data indexing nsfetchedresultscontroller
asked 2013-04-11T08:25:36.750
12
votes
1
answers

Why doesn't UINavigationController have a rootViewController property?

ios objective-c uinavigationcontroller
asked 2013-04-11T01:21:21.240
20
votes
3
answers

What exactly constitutes a "full calendar sync" in EKCalendar?

ios objective-c calendar eventkit
asked 2013-04-09T20:43:58.397
15
votes
5
answers

Under what conditions might instancesRespondToSelector: return true, but performSelector: throw an exception

ios objective-c exception unrecognized-selector
asked 2013-04-09T07:34:16.213
12
votes
6
answers

NSURL baseURL returns nil. Any other way to get the actual base URL

objective-c nsurl
asked 2013-04-09T07:20:58.347
11
votes
2
answers

NSTextField click-through?

objective-c macos cocoa interface-builder
asked 2013-04-09T00:00:45.477
11
votes
3
answers

setting UIImageView content mode after applying a CIFIlter

iphone ios objective-c uiimageview core-image
asked 2013-04-08T11:37:00.233
38
votes
1
answers

How can I fix this error: "ARC forbids explicit message send of 'release' in Xcode"

iphone objective-c animation automatic-ref-counting
asked 2013-04-05T21:42:43.047
10
votes
5
answers

Retrieve NSDictionary from NSArray where dictionary key has value X

ios objective-c nsarray nsdictionary
asked 2013-04-05T10:07:08.413
10
votes
3
answers

UITableView scroll content size incorrect after dismissing another view

ios objective-c iphone uitableview cocoa-touch
asked 2013-04-04T13:46:10.190
11
votes
1
answers

The advertisement key 'Manufacturer Data' is not allowed in CoreBluetooth

iphone ios objective-c core-bluetooth
asked 2013-04-03T06:24:20.923
8
votes
1
answers

UICollectionViewController Programmatically crashing with non-nil layout parameter error

ios objective-c cocoa-touch uicollectionview
asked 2013-04-02T22:07:04.127
11
votes
1
answers

How do I query Google Drive for id of a folder with known name in root folder (Google Drive SDK for iPhone)?

ios objective-c google-drive-api
asked 2013-04-01T19:39:07.457
30
votes
9
answers

NSArray from NSCharacterSet

objective-c nscharacterset
asked 2013-04-01T10:21:13.420
8
votes
4
answers

generating random numbers without consecutive repetition

objective-c random
asked 2013-03-31T20:49:50.317
35
votes
5
answers

What exactly IS the highlighted image in a UIImageView?

ios objective-c image uiimageview
asked 2013-03-31T04:01:16.347
80
votes
12
answers

How to get UITableViewCell indexPath from the Cell?

iphone ios objective-c xcode cocoa
asked 2013-03-29T21:44:23.953
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