Recent questions tagged objective

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I'm trying to open email composure in iOS 8 from Xcode 6, but getting an error. The same code ... barrier from com.apple.MailCompositionService See Question&Answers more detail:os...

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

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objective c - Error in iOS 10 : Unable to copy asset information from https://mesu.apple.com/assets/ for asset type

2016-10-05 13:36:21.383340 MyApp[1867:72704] 0x60000015e350 Copy matching assets reply: XPC_TYPE_DICTIONARY < ... copy asset information... See Question&Answers more detail:os...

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

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objective c - Setting font on NSAttributedString on UITextView disregards line spacing

I'm trying to set an attributed string to a UITextView in iOS 6. The problem is, if I attempt to set the font ... ; Any idea what's going on? See Question&Answers more detail:os...

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

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objective c - How to make a class conform to a protocol in Swift?

in Objective-C: @interface CustomDataSource : NSObject <UITableViewDataSource> @end in Swift: class CustomDataSource : ... correct way ? See Question&Answers more detail:os...

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

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398 views

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objective c - iPhone socket program

I want to create an extremely simple iPhone program that will open a telnet session on a lan-connected device and ... there I can play with? See Question&Answers more detail:os...

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

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502 views

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objective c - How to integrate Linphone into an existing project (SIP in IOS)

I am looking for integrate Linphone library in my ios project. And I dont find tutorial to help me. This project ... held me a very great 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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objective c - Avoid extra static variables for associated objects keys

When using associated objects, an Objective-C runtime feature available starting from iOS 4 and OSX 10.6, ... declaration of extra variables? See Question&Answers more detail:os...

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

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objective c - Delegation to multiple objects

Is there any way to delegate to two objects at a time in Objective-C? I know that delegation pattern implies ... approach should be the best? See Question&Answers more detail:os...

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

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objective c - Faking Subpixel Antialiasing on Text with Core Animation

For anyone working on a project with Core Animation layer-backed views, it's unfortunately obvious that ... well on transparent backgrounds. See Question&Answers more detail:os...

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

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614 views

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objective c - How to fade out a NSView with animation?

This is as simple as can be so I can't for the life of me find what's wrong, I looked through the documentation as ... . I'm using Xcode 5.1.1. See Question&Answers more detail:os...

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

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424 views

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objective c - Detect if time format is in 12hr or 24hr format

Is there any way to detect if the current device of the app uses 12h our 24h format, so that I can use one ... /PM picker if it is 12h format. See Question&Answers more detail:os...

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

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objective c - iPhone keyboard, Done button and resignFirstResponder

This is probably a dumb question, but I can't find the answer in the docs. Did the "Done" button on the pop-up keyboard ... on OS 3.0 - 3.1.3 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 - iOS: How to convert UIViewAnimationCurve to UIViewAnimationOptions?

The UIKeyboardAnimationCurveUserInfoKey has a UIViewAnimationCurve value. How do I convert it to the corresponding ... /better way? See Question&Answers more detail:os...

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

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682 views

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objective c - ios facebook sdk 4.0 login error code 304

I've just updated facebook sdk v4.0 and according the tutorial of Using Custom Login UIs -(IBAction) ... am I missing something? 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 - Assertion failure in -[UITableView _endCellAnimationsWithContext:]

Hopefully this will be a quick fix. I have been trying to figure out the error that i keep getting. The ... :databasePath error:nil]; } @end See Question&Answers more detail:os...

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

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367 views

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objective c - iOS- How to integrate push notification in iOS 10?

I have used following code for iOS 8,9 as: UIMutableUserNotificationAction *action1; action1 = [[UIMutableUserNotificationAction ... and iOS 9? See Question&Answers more detail:os...

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

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287 views

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objective c - Drawing selection box (rubberbanding, marching ants) in Cocoa, ObjectiveC

I've currently implemented a simple selection box using mouse events and redrawing a rectangle on mouse drag. Here' ... to find any examples. See Question&Answers more detail:os...

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

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593 views

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objective c - Detecting when a space changes in Spaces in Mac OS X

Let's say I want to write a simple Cocoa app to make the Spaces feature of Leopard more useful. I would like ... apps on the Mac App Store. See Question&Answers more detail:os...

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

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316 views

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objective c - Animation using array of images in sequence

I have an array of images which I want to animate by playing these images one after the other in a sequence ... -C with the Cocoa framework. 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 - Paging results from Core Data requests

I have a relatively simple core data sqlite database. I am trying to get results from DB one page at a time. ... 30 (ERROR: should give 4) See Question&Answers more detail:os...

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

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527 views

1 answer

objective c - Adding private key into iOS Keychain

I am trying to add a private key into the iOS keychain. The certificate (public key) works fine but the ... I cannot store further keys. See Question&Answers more detail:os...

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

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562 views

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objective c - Why passing &error instead of error in Cocoa programming?

In Cocoa programming, when dealing with NSError, why we are passing &error to a message instead of error? NSError ... save:&error]) //Code See Question&Answers more detail:os...

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

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586 views

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objective c - No restore button for in app purchase causes rejection

I am implementing an application using in app purchase with non-consumables items, it was rejected by apple and ... the exact problem. 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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348 views

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objective c - Custom font in a Cocoa application

I know you can customize fonts by using Interface Builder and selecting a font. However, I'm curious if I ... custom font in my application? See Question&Answers more detail:os...

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

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316 views

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objective c - programmatically create initial window of cocoa app (OS X)

Usually I am making iOS app but now I am trying to make an OS X app, and I am lost at the very ... ? I am using the latest Xcode. See Question&Answers more detail:os...

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

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343 views

1 answer

objective c - Synthesizing a property without instance variables

I thought I understood @property and @synthesize, but I did some experimenting and I can't figure out why the below ... drain]; return 0; } See Question&Answers more detail:os...

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

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322 views

1 answer

objective c - iOS: How to use MPMoviePlayerController

I've created a blank project (iOS) and put this in my viewDidLoad: NSString *moviePath = [[NSBundle mainBundle] ... and errors. Please 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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305 views

1 answer

objective c - Social action sheet (like on iOS 6)

on iOS 6 a change was that when you want to share something it brings up an action sheet similar to this: ... a custom action sheet? 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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