Recent questions tagged objective

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381 views

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objective c - UIBarButtonItem with UIImage Always Tinted iOS 7

I'm trying to add a UIBarButtonItem containing a UIImage to a UIToolbar. The image keeps being tinted and I can' ... but thought I'd mention it. See Question&Answers more detail:os...

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

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693 views

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objective c - NSWindow with round corners and shadow

I'm trying to crate a NSWindow without title bar (NSBorderlessWindowMask) with round corners and a shadow, ... setContentView:aView]; } @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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378 views

1 answer

objective c - mouseExited isn't called when mouse leaves trackingArea while scrolling

Why mouseExited/mouseEntered isn't called when mouse exits from NStrackingArea by scrolling or doing animation? I create ... 's not a problem. See Question&Answers more detail:os...

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

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537 views

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objective c - Detecting the direction of PAN gesture in iOS

In my app there is a image view.Im adding PAN gesture to that image view. This is working fine. The image ... the user is panning(left/right)? See Question&Answers more detail:os...

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

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705 views

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objective c - How to convert std::string to NSString?

Hi I am trying to convert a standard std::string into an NSString but I'm not having much luck. I can ... something here? 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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473 views

1 answer

objective c - Create PDF Annotations in iOS

I've been working on a pdf viewer with support for annotations and I need to be able to save new annotations that ... how we managed to do it See Question&Answers more detail:os...

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

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490 views

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objective c - NSStatusItem change image for dark tint

With OSX 10.10 beta 3, Apple released their dark tint option. Unfortunately, it also means that pretty much all ... _imageView.image = image; } 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

1 answer

objective c - Using insert rows in a UITableView

I'd like my UITableView to behave like the the table in the Contacts editor, i.e. the ... ; return UITableViewCellEditingStyleDelete; } 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

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objective c - ARC __bridge modifiers demystified

I was asked recently by one of my friends about the new bridge modifiers that became active under ARC. He asked ... sure I set it up properly. See Question&Answers more detail:os...

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

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513 views

1 answer

objective c - Monitor memory usage in an iphone app?

Is it possible to monitor the amount of memory your app is consuming? See Question&Answers more detail:os...

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

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487 views

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objective c - Release, Dealloc, and the Self reference

So I thought I had all these questions all figured out. Then all of a sudden I get an error (a crash ... Dealloc - are such tutorials incorrect? See Question&Answers more detail:os...

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

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378 views

1 answer

objective c - showing custom menu on selection in UIWebView in iphone

I want to show 2 options like "hi" & "bye" when user completes selection on UIWebView. I have added ... options:nil context:nil ]; See Question&Answers more detail:os...

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

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475 views

1 answer

objective c - Add rows to UITableView when scrolled to bottom

Is there a way to trigger an event, such as with an IBAction, when a user scrolls to the bottom of a UITableView ... happens. How do I do 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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379 views

1 answer

objective c - xcode 6 pch.file not found

I load my project from xcode 5 to xcode 6 and see error myProject-prefix.pch is not found in myProjectTests, I ... but in xcode 5 is work fine See Question&Answers more detail:os...

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

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356 views

1 answer

objective c - Deleting plist file does not reset app on macOS 10.9+

While developing a Cocoa application on 10.9, I have noticed that if I go to ~/Library/Preferences and delete ... it myself to help others. See Question&Answers more detail:os...

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

0 votes

642 views

1 answer

objective c - Hide Status Bar In iOS 8 app

I have tried [[UIApplication sharedApplication] setStatusBarHidden:YES]; This does nothing. And I have looked in my Info ... Xcode 6? Thank you! See Question&Answers more detail:os...

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

0 votes

420 views

1 answer

objective c - Adding delay between execution of two following lines

I need to add a delay between the execution of two lines in a(same) function. Is there any favorable ... appreciable. Thanks in advance... See Question&Answers more detail:os...

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

0 votes

553 views

1 answer

objective c - Facebook iOS SDK - get friends list

Using the Facebook iOS SDK, how can I get an NSArray of all my friends and send them an invitation to my app? ... to get all of the friends. See Question&Answers more detail:os...

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

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306 views

1 answer

objective c - Why should I choose GCD over NSOperation and blocks for high-level applications?

Apple's Grand Central Dispatch reference says: "...if your application needs to operate at the Unix level of the ... not be used. Any thoughts? See Question&Answers more detail:os...

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

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503 views

1 answer

objective c - Failed to render instance of IB Designables

I have an Objective-C and Swift mixed dynamic framework. And the mixed framework was linked with two pure ... either device or the simulator. See Question&Answers more detail:os...

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

0 votes

543 views

1 answer

objective c - How to deprecate a method in Xcode

We have our library we ship to our customers, and I'd like to mark some methods as "deprecated" because ... Anybody knows something about that ? See Question&Answers more detail:os...

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

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349 views

1 answer

objective c - @interface and @protocol explanation?

I would like to know what the @interface in objective C is? is it just where the programmer want to declare ... please. I truly appreciate it. See Question&Answers more detail:os...

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

0 votes

396 views

1 answer

objective c - Making an array of integers in iOS

If you want to make an array of integers, can you use NSInteger? Do you have to use NSNumber? If so, then why? See Question&Answers more detail:os...

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

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336 views

1 answer

objective c - How does line spacing work in Core Text? (and why is it different from NSLayoutManager?)

I'm trying to draw text using Core Text functions, with a line spacing that's as close as possible to what it ... s a better way to do 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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577 views

1 answer

objective c - Generic typeof for weak self references

I am trying to figure out a way to use typeof to create a weak reference to self for use in blocks to ... create a weak reference to self? See Question&Answers more detail:os...

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

0 votes

465 views

1 answer

objective c - Checking location service permission on iOS

How can I check if location service is enabled for my app? I have 2 storyboards and I want to check ... . How can I do programmatically? See Question&Answers more detail:os...

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

0 votes

564 views

1 answer

objective c - iOS 8 - Screen blank after dismissing view controller with custom presentation

When dismissing various view controllers using UIModalPresentationCustom, the screen turns black after the view controller is ... with iOS 8b5 See Question&Answers more detail:os...

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

0 votes

445 views

1 answer

objective c - Move the annotation on Map like Uber iOS application

I am working on a project where I need to create a similar iOS application to UBER and OLA where the car ... the below screenshot for the same. See Question&Answers more detail:os...

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

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