Recent questions tagged objective

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objective c - UITableViewCell animate height issue in iOS 10

My UITableViewCell will animate it's height when recognizing a tap. In iOS 9 and below this animation is smooth ... then related to the bottom. See Question&Answers more detail:os...

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

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736 views

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objective c - How to send a PDF file using UIActivityViewController

I'm trying to send a PDF using a UIActivityViewController. So far everything works fine using a fairly basic ... solution to this 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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597 views

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objective c - Integrating Bison/Flex/Yacc into XCode

Is there a simple way for integrating Bison/Flex/Yacc into XCode? I want to write my own language to be ... time I regenerate the parser 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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504 views

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objective c - NSNumberFormatter only rounds to 3 decimal places

I'm trying to use NSNumberFormatter to round a number to 5 decimal places in an iPhone app, but [ ... NSNumber numberWithDouble:0.00001]]; See Question&Answers more detail:os...

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

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354 views

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objective c - Data doesn't load in UITableView until I scroll

I am trying to load parsed data in cells, but the problem is that it is happening synchronously and UitableView ... =6; return cell; } See Question&Answers more detail:os...

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

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620 views

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objective c - Underline part of a string using NSMutableAttributedString in iOS 8 is not working

I try to underline part of a string, for example, a 'string' part in 'test string' string. I'm using ... that? How can I workaround 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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563 views

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objective c - How to add a ringtone from an application to ringtones of iphone?

I have created an application included a ringtone, but how can i add it to ringtones of 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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333 views

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objective c - How can I crop an Image with mask and combine it with another image (background) on iPhone? (OpenGL ES 1.1 is preferred)

I need to combine three images the way I represent in attached file: 1) One image is background. It is ' ... value of certain pixels on 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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361 views

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objective c - Object ownership in stringWithString and initWithString in NSString

I understand that any init... method initializes a new object and that NSString stringWithString makes a ... implementation code snipped @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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302 views

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objective c - How to download files directly to disk on the iPhone os?

I would like to download files directly from an URL to the disk using objective-c on the iPhone os. ... in advance for your 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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404 views

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objective c - Autogroup UITableView alphabetically

Is there a way to auto group/auto-section my UITableView alphabetically? I have a huge array which is being ... in Contacts.app. Best -f 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

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objective c - How do you stroke the _outside_ of an NSAttributedString?

I've been using NSStrokeWidthAttributeName on NSAttributedString objects to put an outline around text as it's drawn. ... that would work too. 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 - Amazon Product Advertising API Signature in iOS

I am trying to access Amazon's Product Advertising API in my iOS application. Creating the signature seems to ... the Product Advertising API. See Question&Answers more detail:os...

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

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587 views

1 answer

objective c - How to give shadow like card in iOS

I would like to give shadow effect like card similar to the image in my iOS app I need this on ... gaps between cells with shadow effect See Question&Answers more detail:os...

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

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730 views

1 answer

objective c - NSTableView with custom cells

it seems I've been searching for a long time and haven't found a great, easy, answer to my problem. I ... would be really great! Thanks Dominic See Question&Answers more detail:os...

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

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329 views

1 answer

objective c - How do you test an asynchronous method?

I have an object that fetches XML or JSON over a network. Once this fetching is complete it calls a ... with test* is executed automatically. See Question&Answers more detail:os...

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

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622 views

1 answer

objective c - Automatically adjust height of a NSTableView

I have asked this question once before, but I'm just not very satisfied with the solution. Automatically ... Definitely worth a bounty See Question&Answers more detail:os...

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

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563 views

1 answer

objective c - Animating CAShapeLayer size change

I am drawing a circle, with an initial radius of 200 self.circle = [CAShapeLayer layer]; self.circle.fillColor = ... change to a radius of 100? See Question&Answers more detail:os...

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

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414 views

1 answer

objective c - What is the data structure behind NSMutableArray?

Usually, a "mutable array" class is implemented as a wrapper around a simple array. The wrapper allocates ... Is this documented somewhere? See Question&Answers more detail:os...

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

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560 views

1 answer

objective c - How can dark mode be detected on macOS 10.14?

In macOS 10.14 users can choose to adopt a system-wide light or dark appearance and I need to adjust some ... depend of the current mode. See Question&Answers more detail:os...

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

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268 views

1 answer

objective c - The exact moment iOS takes the view snapshot when entering background?

I have a problem when putting my iPhone app to background by pushing the exit button, and then relaunching by ... the video preview layer } } See Question&Answers more detail:os...

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

0 votes

435 views

1 answer

objective c - iOS NSAttributedString to HTML

I have an NSAttributed string (coming from HTML) that I set for a UITextView. - (void)setHtml:(NSString *) ... and write my own HTML? See Question&Answers more detail:os...

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

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961 views

1 answer

objective c - Make NSView NOT clip subviews outside of its bounds

Is it possible to make an NSView not clip its subviews that are outside of the bounds? On iOS I would ... drawRect method, not the subviews. 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 add custom image in navigation bar button item?

UIBarButtonItem *doneitem=[[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector( ... me. See Question&Answers more detail:os...

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

0 votes

600 views

1 answer

objective c - How to create an alert box in iphone?

I would like to make an alert type box so that when the user tries to delete something, it says, "are you ... best way to do this in iphone? See Question&Answers more detail:os...

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

0 votes

550 views

1 answer

objective c - Ask for Permission for Local Notifications in iOS 8, but still have the App Support iOS 7

I have an app which uses local notifications. In iOS 7 everything works fine, but in iOS 8 the app needs ... work properly on both versions. See Question&Answers more detail:os...

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

0 votes

426 views

1 answer

objective c - Fonts on iOS device

I've read the available font families by [UIFont familyNames], but I've got various lists on different devices ... the fonts shipped with iOS? See Question&Answers more detail:os...

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

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722 views

1 answer

objective c - CFURLCopyResourcePropertyForKey failed because passed URL no scheme

I have a program that saves a file to the iCloud and this has worked great for iOS7, but now I get this ... /Documents/mypic.png Thank you, Jon See Question&Answers more detail:os...

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

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