Recent questions tagged objective

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objective c - Segue crashes my program. Has something to do with my NavigationController and my TabBarViewController

I encountered a problem while testing my app. You can see how I have setup my views in the following image: ... for your advice and responses. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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567 views

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objective c - Filter NSArray of custom objects

I have a NSArray of Contact objects, we can call it contacts. Contact is a superclass, FacebookGroup and ... , strong) NSString *userID; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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374 views

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objective c - NSURLCache: inconsistent behaviour

I was observirng some strange behaviour of my app sometime caching responses and sometime not caching them (all ... Any suggestion? Thanks, Dem See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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495 views

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objective c - What name does the auto-generated ivar take when I just declare a property in XCode 4.5 onwards?

Earlier I was on XCode 4.2 for a long time on Snow Leopard for a long time. I have made a straight jump ... -generated ivar starts with _ now ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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498 views

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objective c - If statement checking for NSString equality using ==

I am making a server call in some Objective-c code. If it returns as a @"yes", it will do an action. For ... @"Success"; // DO ACTION HERE } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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410 views

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objective c - Dynamic layout for Multilple iOS devices?

I am developing an app in iOS.Earlier i was creating separate storyboards for separate iOS devices but now i am ... Please suggest how to do ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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394 views

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objective c - IF clause is not validating NSString function return?

I have the function below that validates the return of another function (function searchPlaces that returns NSString). ... } Thanks in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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452 views

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objective c - iphone - writeToFile not saving new entry into plist

My writeToFile is not saving my data to my .plist. - (IBAction)clickBtnDone:(id) sender { NSLog(@"Done"); ... my ~Documents folder. Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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485 views

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objective c - Pros and Cons of using [NSString stringWithString:@"some string"] versus @"some string"

I want to compare the following simple assignments: ... @property(nonatomic,retain) UITextField *textField; ... self. ... : at all if not? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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496 views

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objective c - AVAudioRecorder doesn't record while screen is locked

I've tried to overcome this for a while. I'm trying to record sound, but the AVAudioRecorder doesn't record while ... ]; } Any ideas, please? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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318 views

1 answer

objective c - How or where should I store object instances that I require globally within my iOS app?

I'm building an iOS application. Most of the application requires access to a persistent object. This object is ... be appreciated. Many thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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505 views

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objective c - My iOS app is not showing App Icon in Simulator

I have added all required icons in asset catalogs as well as in my application, but it is not showing icon on simulator See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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512 views

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objective c - Compare the text of two text fields

How do you compare the text in two text fields to see if they are the same, such as in "Password" and " ... are not equal to each other } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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512 views

1 answer

objective c - does dealloc method being executed normally when quitting the application?

I use code like the following (inside my appController.m for example) to do some cleanup when my application terminates.. ... up ? Thank you... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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504 views

1 answer

objective c - Customize core data model at runtime?

I want a model which could be customized by the user. Is it possible with core data or are there better ... is an application for mac os! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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524 views

1 answer

objective c - didRegisterForRemoteNotificationsWithDeviceToken is not called up in ios 9

I have to implement APNS in my project, I have created APNS SSL in developer portal, and using this i have ... userInfo objectForKey:key]); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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382 views

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objective c - How to get the time in iOS Programming

I wanted to get random numbers according to time. How do you get the current time in iOS Programming for the iPhone? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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517 views

1 answer

objective c - Missing keyUp events on meaningful key combinations (e.g. "Select till beginning of line")

I have an NSTextField which uses as an extended NSTextFieldCell, which creates a custom field editor, that ... the keyUp not delivered? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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397 views

1 answer

objective c - Is it possible to compile a newer version of LLVM and use it with Xcode?

I have an old computer that cannot upgrade to Lion, but I would like to use it for coding while still ... an older Xcode and been successful? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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389 views

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objective c - Overriding NS*** methods in Swift

To provide a fallback language for NSLocalizedString, I'm using this #undef and #define in Objective-C: #undef ... also see SO answer here See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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412 views

1 answer

objective c - iOS compare button title to string

I'm just learning how to code so thanks for your patience on this simple question. Here's my code: - ( ... string? Much thanks for the help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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557 views

1 answer

objective c - Varieties of @interface declarations, some with parentheses

I've noticed a variety of @interface declarations for Objective-c classes. I'd like to understand why ... / some method declarations @end See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

544 views

1 answer

objective c - How Can I get keyboard input in a SpriteKit Game?

I'm a beginner in SpriteKit programming, and have been trying to figure out how to handle input from the ... Thanks again for the help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

562 views

1 answer

objective c - iOS Facebook SDK Error Domain com.facebook.sdk Code 2 and Code 7

I am developing the application which allow user to login via Facebook (using Facebook SDK for it). The error ... works. But it is deprecated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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542 views

1 answer

objective c - NSURL returns Nil Value

Here Below is my code NSString *string = [NSString stringWithFormat:@" http://abc.com /Demo/View.php? ... NSURL alloc] initWithString:string]; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

756 views

1 answer

objective c - Determining if Airplane Mode is enabled on an iPhone?

UPDATE: As of some version of iOS 8 (8.3, maybe), GPS hardware can be turned on even in airplane mode ( ... could come from a number of sources. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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431 views

1 answer

objective c - Send a message to a Facebook profile using an iPhone application

I am creating an iPhone application using the Facebook SDK. How do I post a message to a selected friend such ... idea how to implement this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

1 answer

objective c - Making a gradient arc?

i wanna make an arc with the use of CAGradientLayer in such a way:- 20% of the arc have same single ... ; gradientLayer.mask = shapelayer; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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