Tag: objective-c

1753 What's the difference between the atomic and nonatomic attributes? 2009-02-26T02:31:34.370

1594 How can I make a UITextField move up when the keyboard is present? 2009-07-14T17:06:07.483

1306 How can I disable ARC for a single file in a project? 2011-07-11T05:21:18.223

1237 Passing Data between View Controllers 2011-03-06T12:43:57.183

1210 performSelector may cause a leak because its selector is unknown 2011-08-10T20:23:24.387

1196 How do I sort an NSMutableArray with custom objects in it? 2009-04-30T06:10:56.923

1162 How do I check if a string contains another string in Objective-C? 2010-05-02T15:34:54.230

1066 Shortcuts in Objective-C to concatenate NSStrings 2009-02-04T06:26:19.240

1052 What is a typedef enum in Objective-C? 2009-04-01T21:59:43.937

980 Constants in Objective-C 2009-02-11T21:52:02.593

886 How do I convert an NSString value to NSData? 2009-05-23T11:20:38.193

852 How to call Objective-C code from Swift 2014-06-02T20:05:42.603

793 How to check iOS version? 2010-07-26T23:30:11.657

718 Generating random numbers in Objective-C 2008-10-02T04:35:21.967

704 How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:? 2010-11-09T22:13:44.557

700 @class vs. #import 2008-11-27T00:20:17.140

700 How do I create delegates in Objective-C? 2009-03-09T16:06:14.197

680 Placeholder in UITextView 2009-08-25T14:26:22.567

639 iOS 8 UITableView separator inset 0 not working 2014-09-10T16:05:38.620

637 How to link to apps on the app store 2009-01-11T22:48:36.487

619 How do I test if a string is empty in Objective C? 2009-05-22T18:12:48.543

603 Location Services not working in iOS 8 2014-06-05T14:12:06.167

575 Send and receive messages through NSNotificationCenter in Objective-C? 2010-02-03T11:47:47.090

549 How to convert an NSString into an NSNumber 2009-09-19T15:48:29.937

540 @synthesize vs @dynamic, what are the differences? 2009-07-21T17:12:54.710

540 UITableViewCell, show delete button on swipe 2010-07-22T13:46:10.503

527 How do I create a basic UIButton programmatically? 2009-09-04T11:44:37.507

526 What does the NS prefix mean? 2009-01-23T17:22:44.037

523 In Objective-C, how do I test the object type? 2009-07-17T17:19:34.823

519 Should IBOutlets be strong or weak under ARC? 2011-10-06T17:56:35.840

501 How to programmatically send SMS on the iPhone? 2008-08-14T09:51:06.207

498 Creating an abstract class in Objective-C 2009-06-23T18:42:25.897

493 Codesign error: Provisioning profile cannot be found after deleting expired profile 2009-11-19T02:28:54.317

479 UITextField text change event 2011-08-10T12:09:41.583

463 How to navigate through textfields (Next / Done Buttons) 2009-08-28T15:34:40.453

455 How do I set up NSZombieEnabled in Xcode 4? 2010-02-03T07:01:02.010

448 Set the maximum character length of a UITextField 2009-01-11T18:08:11.093

445 How to check if an NSDictionary or NSMutableDictionary contains a key? 2010-05-06T21:27:52.217

440 How to print out the method name and line number and conditionally disable NSLog? 2009-06-09T09:44:47.720

440 Capture image via captureStillImageAsynchronouslyFromConnection with no shutter sound 2014-05-20T11:42:22.280

439 How to add percent sign to NSString 2009-04-11T07:33:57.037

430 What is the difference between class and instance methods? 2009-06-27T20:48:43.870

422 How to set the title of UIButton as left alignment? 2010-05-04T11:56:19.570

421 How do I iterate over an NSArray? 2009-06-14T14:21:10.227

412 @import vs #import - iOS 7 2013-09-22T18:47:45.283

409 What does the "__block" keyword mean? 2011-08-16T15:39:53.320

403 File is universal (three slices), but it does not contain a(n) ARMv7-s slice error for static libraries on iOS, anyway to bypass? 2012-09-13T08:15:38.833

401 throwing an exception in objective-c/cocoa 2008-11-27T17:18:57.740

400 Is It Possible to NSLog C Structs (Like CGRect or CGPoint)? 2009-02-15T02:28:30.300

399 Getting current device language in iOS? 2010-10-11T21:58:08.760

376 Applications are expected to have a root view controller at the end of application launch 2011-09-22T20:21:51.390

374 Set padding for UITextField with UITextBorderStyleNone 2010-09-16T13:21:27.440

372 How dangerous is it to compare floating point values? 2012-04-26T13:41:12.947

371 Easy way to dismiss keyboard? 2009-04-12T02:19:29.843

369 How to hide UINavigationBar 1px bottom line 2013-10-07T14:04:47.550

367 How to sort a NSArray alphabetically? 2009-08-29T11:16:49.223

364 What is the difference between #import and #include in Objective-C? 2009-01-13T16:25:17.117

361 Determine device (iPhone, iPod Touch) with iPhone SDK 2009-01-15T19:36:58.757

360 How to dismiss keyboard for UITextView with return key? 2009-04-01T01:48:53.503

360 Assign a variable inside a Block to a variable outside a Block 2011-11-01T05:16:56.300

358 How do I convert NSMutableArray to NSArray? 2009-11-20T07:42:57.953

356 Core Data: Quickest way to delete all instances of an entity 2009-09-05T15:29:52.107

352 Objective-C ARC: strong vs retain and weak vs assign 2012-01-19T14:27:45.687

348 Best way to define private methods for a class in Objective-C 2008-10-05T20:29:53.803

348 What goes into your .gitignore if you're using CocoaPods? 2012-02-25T18:12:54.340

346 What are best practices that you use when writing Objective-C and Cocoa? 2008-10-01T02:13:42.270

345 How do I use NSTimer? 2009-09-19T17:25:37.923

343 UITableView - scroll to the top 2009-04-07T09:54:54.713

343 Set UIButton title UILabel font size programmatically 2009-09-23T10:58:16.893

338 Hidden Features of Xcode 2008-09-28T17:26:37.763

338 How do I draw a shadow under a UIView? 2009-04-30T08:07:04.053

336 Difference between objectForKey and valueForKey? 2009-06-30T07:14:35.067

336 Create singleton using GCD's dispatch_once in Objective C 2011-04-19T17:07:11.010

336 iPad Multitasking support requires these orientations 2015-09-14T07:53:07.110

335 How can I reverse a NSArray in Objective-C? 2009-02-25T15:12:35.453

335 How to write iOS app purely in C 2012-04-23T23:48:25.200

334 What should my Objective-C singleton look like? 2008-09-28T03:38:53.743

334 How to scale a UIImageView proportionally? 2008-10-09T01:58:39.350

331 When to use NSInteger vs. int 2010-12-14T23:03:56.437

330 "sending 'const NSString *' to parameter of type 'NSString *' discards qualifiers" warning 2011-07-26T10:44:12.197

329 UILongPressGestureRecognizer gets called twice when pressing down 2010-07-23T15:21:08.500

328 Creating a blurring overlay view 2013-06-11T10:13:41.643

327 What is the best way to unit test Objective-C code? 2008-08-28T19:41:30.307

326 Use of alloc init instead of new 2009-04-05T23:26:06.450

325 NSString property: copy or retain? 2008-12-23T01:56:34.313

323 Get the current first responder without using a private API 2009-12-01T00:31:14.203

322 How to remove empty cells in UITableView? 2013-01-25T10:45:10.827

320 Convert an NSURL to an NSString 2011-11-10T16:20:51.257

319 Emulating aspect-fit behaviour using AutoLayout constraints in Xcode 6 2014-09-10T13:28:11.103

315 Replacement for deprecated sizeWithFont: in iOS 7? 2013-09-19T14:47:10.620

310 Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath: 2012-10-05T00:22:13.860

309 Generate JSON string from NSDictionary in iOS 2011-06-16T08:07:05.230

309 How do I create a category in Xcode 6 or higher? 2014-06-20T09:25:13.443

306 Can I use Objective-C blocks as properties? 2010-10-14T16:55:34.930

306 library not found for -lPods 2012-03-25T20:39:03.793

302 UIView frame, bounds and center 2011-03-19T09:57:25.470

300 How to hide 'Back' button on navigation bar on iPhone? 2009-03-05T10:15:23.247

300 UIRefreshControl without UITableViewController 2012-09-19T15:30:22.017

298 How to make an HTTP request in Swift? 2014-06-03T13:12:32.443