Recent questions tagged objective

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objective c - Why do I need to write @synthesize when I provide getter and setter?

So the auto synthesize of properties is awesome. However, when you provide both a getter and a setter, you get ... just wondering why this is? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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569 views

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objective c - fake va_list in ARC

I need to create in an iOS application a fake va_list to pass to a NSString initWithFormat:arguments: function, this ... What am i doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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397 views

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objective c - Creating a custom UIKeyBoard for iPhone

If anyone has the app GymBuddy, then they will know what I am talking about. They seem to use the stock ... or creating your own. Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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339 views

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objective c - Sort by distance

I have a set of dictionaries in an array. I display this data in a tableview. In the tableview i calculate ... indexPath.row and displaying it. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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337 views

1 answer

objective c - Posting photos to Facebook fan page with iOS SDK

I'm trying to upload a photo to a Facebook page I own using the iOS SDK and graph API. I've been able ... requests, and get the same result. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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342 views

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objective c - Find UIAlertView without having reference to it iOS 7

I was using a code snippet in my project answered here: UIAlertView without having reference to it Here's the code: ... can I fix this problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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591 views

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objective c - Bullet list and Numbered list in UITextView

Can any body tell me how to add bullet list and numbered list to the selected text in UITextView. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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300 views

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objective c - Code coverage not showing results using Xcode + gcov

I have been trying to get the Code coverage working for iPhone simulator and always get a 0% coverage. ... precompiled prefix header file flag. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

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objective c - NSMutableAttributedString add different alignments

Is it possible to add left and right alignments to different parts of the string? I tried to add alignment ... is aligned to the left. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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368 views

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objective c - Why does NSArray arrayWithObjects require a terminating nil?

I understand that it marks the end of a set of varargs, but why can't it be implemented in such a way that doesn't require the nil? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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718 views

1 answer

objective c - Failed to import bridging header

I've read a lot of questions and answers that deal with a similar issue, but I have yet to find a solution. If ... when I try to add #import ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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448 views

1 answer

objective c - Split NSString multiple times on the same separator

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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571 views

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objective c - Saving custom attributes in NSAttributedString

I need to add a custom attribute to the selected text in an NSTextView. So I can do that by getting the ... this custom attribute. Any help? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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534 views

1 answer

objective c - Detect iPhone Volume Button Up Press?

Is there a notification that I can listen to that will tell me when an iPhone's volume is turned up? I ... volume? Camera+ has implemented this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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479 views

1 answer

objective c - iOS 6 Address Book not working?

My method of programmatically retrieving e-mail addresses from the Address Book no longer seems to work on iOS ... is empty. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

368 views

1 answer

objective c - Asynchronous NSURLConnection with NSOperation

I want to do NSURLConnection in background mode,because it response is having much data.Forums are telling to use Apple's ... is NULL"); } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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334 views

1 answer

objective c - Is it safe to use isKindOfClass: against an NSString instance to determine type?

From the isKindOfClass: method documentation in NSObject: Be careful when using this method on objects represented by ... if it's generalizable. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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299 views

1 answer

objective c - Xcode Preprocessor Output

I want to check the output of the preprocessor for some files. How can I view the preprocessor's output in Xcode? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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274 views

1 answer

objective c - Record audio file and save locally on iPhone

I have been looking all over the place for an answer to this but cant find exactly what I need. Basically in my ... gets 0, and no idea why. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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327 views

1 answer

objective c - iphone - NSTimers in background

Im developing an app that has to run in the background. It's a location based app, so it runs all the ... I connect to a webservice. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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365 views

1 answer

objective c - iPhone drag/drop

Trying to get some basic drag/drop functionality happening for an iPhone application. My current code for trying to do ... what I'm doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

755 views

1 answer

objective c - NSTimeInterval Formatting

I want to take my NSTimeInterval and format it into a string as 00:00:00 (hours, minutes, seconds). What is the best way to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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418 views

1 answer

objective c - Crop a CAShapeLayer retrieving the external path

I am trying to crop a layer with other, but, instead of creating a mask (B) and crop the layer (A) getting a ... can I get the cropped layer A? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

1 answer

objective c - How to Get the Display Name with the Display ID in Mac OS X?

I was wondering if you could help me figure out how to progmatically get the Display Name for a monitor by ... help is MUCH appreciated! :) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

1 answer

objective c - Truncate NSDate (Zero-out time)

I want to generate a new NSDate with 0 hours, 0 minutes, and 0 seconds for time. The source date can be any random ... : 2010-10-30 00:00:00 GMT See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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574 views

1 answer

objective c - Hide the status bar in ios 9

How do you hide the status bar in ios 9? This is now deprecated: [UIApplication sharedApplication] setStatusBarHidden:YES]; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

488 views

1 answer

objective c - What is the empty @interface declaration in .m files used for?

I've started a new iOS 5 project and noticed something new at the top of each .m file #import " ... practice for this going forward? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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450 views

1 answer

objective c - Best approach for XML parsing on the iPhone

I've familiarized myself with the NSXMLParser from the iPhone SDK but I find the event-driven nature of it ... ifs in the startElement method? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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