Recent questions tagged objective

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objective c - Is there any way to remove the "year" of the date picker?

I have a date picker in a view, but I only want it to display the days and the months, not the years, is there any way to take the year out? See Question&Answers more detail:os...

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

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objective c - Should I need to unbind cocoa-bindings in dealloc of windowController?

I have window controller and view controller that use core data bindings, but I want to be able to have those views ... d be my fault... yet. See Question&Answers more detail:os...

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

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503 views

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objective c - Weird error message in Xcode 4.3 with LLDB

I am currently writing an iOS app with Xcode 4.3.2. In most parts of my code, debugging with ... postNotificationName:bar object:objB]; See Question&Answers more detail:os...

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

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372 views

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objective c - What is the reason of kSecTrustResultRecoverableTrustFailure?

I'd like to validate my ssl server certificates with some extra checks. And sometimes I get a ... CSSM_ALGID_MD5 from a SecCertificateRef? See Question&Answers more detail:os...

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

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442 views

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objective c - How to show the progress of copying a large file in iOS?

I am writing an iOS app. In my app, I want to copy some files from one folder to another. But because ... anyone have the good solution to 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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499 views

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objective c - Twitter Framework for ios6 how to login through settings from app

For iOS5 we can refer : Prompt login alert with Twitter framework in iOS5? But for iOS6 that will not helpfull i ... .view endEditing:YES]; }]; See Question&Answers more detail:os...

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

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425 views

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objective c - Application windows are expected to have a root view controller at the end of application launch warning

I have been stuck with this warning for several hours now. I've looked around SO for answers, attempted all ... be missing? Thanks in advance! 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

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objective c - What is a Protocol?

I've read the documentation but I'm still confused. Can someone please explain what a protocol is? (You ... really looking for an explanation) See Question&Answers more detail:os...

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

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374 views

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objective c - Customizing Section indexes in UITableView in iphone application

Does any one have tried to customize default section index displayed in UITableView. I want to modify the appearance ... 's answer is yes? See Question&Answers more detail:os...

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

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430 views

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objective c - NSPredicate and Regex

Can someone please help me with using Regex with NSPredicate? NSString *regex = @"(?:[A-Za-z0-9])"; NSPredicate * ... A-sa-s0-9])" Please 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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628 views

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objective c - NSNumber of seconds to Hours, minutes, seconds

I am having a terrible time trying to do something that should be easy. I have a NSNumber value of 32025.89 ... seem to find a proper formatter. See Question&Answers more detail:os...

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

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384 views

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objective c - iPhone SDK - Add a "Add to Home Screen" button in a UIWebView

I have a native iPhone app, which has a UIWebView component to it. I am trying to see if I can replicate ... within a native app? Thanks! Brett See Question&Answers more detail:os...

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

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374 views

1 answer

objective c - Making a call programmatically from iPhone app and returning back to the app after ending the call

I am trying to initiate a call from my iphone app,and I did it the following way.. -(IBAction) call:(id ... can initiate a call using webview... See Question&Answers more detail:os...

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

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697 views

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objective c - Error after upgrading to xcode 4.6 and iOS 6.1 "used as the name of the previous parameter rather than as part of the selector"

After updating to xcode 4.6 and ios6.1, I get this new error "'objectType' used as ... objectType: (CLLocationCoordinate2D) objectCoordinate See Question&Answers more detail:os...

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

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701 views

1 answer

objective c - Playing an ogg stream in iOS

Has anyone played an ogg stream from iOS? What can I use without having to write my own decoder? I'm using ... but it hasn't been answered. See Question&Answers more detail:os...

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

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465 views

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objective c - How do you load a prototype cell from a storyboard?

Is there a way to load a prototype cell, along with any IBOutlet connections as defined within a storyboard? Update ... its IBOutlet(s) set. See Question&Answers more detail:os...

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

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533 views

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objective c - How to save created PDF in document folder and merge in iOS

Updated I am able to create single PDF page of photo captured with comment in iPHone. On button click ... { UIGraphicsEndPDFContext(); } See Question&Answers more detail:os...

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

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326 views

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objective c - How can I make every message an object receives thread-safe?

I am developing an Objective-C application, and what I want to do, is something like the following: +----- ... for certain instances of a class) 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 - Simple Delegate Example?

Ok, I'm programming in objective-C and using Xcode. I have read through the documentation on Apple's website and ... "%i", sum]; } @end See Question&Answers more detail:os...

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

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312 views

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objective c - how to run my application in background in iphone?

I want to run my timer in background even when app is not running. Because I want to get gps cordinate of the ... is the method 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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522 views

1 answer

objective c - kill items in a dispatch_async queue in iOS

I am running a bunch of items in the background using dispatch_async and sometimes I want to kill what I have ... they still continue to run. See Question&Answers more detail:os...

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

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446 views

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objective c - UITableView delegate method called twice

Today my question is about UITableViewController-s In particular I have noticed that the datasource delegate method - ( ... answer. Thank you. See Question&Answers more detail:os...

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

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406 views

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objective c - Do I need to release NSString generated using @"..."?

If I make an NSString using the code below, do I need to need to release someString? NSString *someString = @"somestring"; See Question&Answers more detail:os...

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

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503 views

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objective c - Should I subclass the NSMutableArray class

I have an NSMutableArray object that I want to add custom methods to. I tried subclassing NSMutableArray but then ... I do something else? See Question&Answers more detail:os...

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

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356 views

1 answer

objective c - xcode UTF-8 literals

Suppose I have the MUSICAL SYMBOL G CLEF symbol: ** ?? ** that I wish to have in a string literal in my Objective ... -C files had to be UTF-8? See Question&Answers more detail:os...

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

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595 views

1 answer

objective c - Detecting if UIView is intersecting other UIViews

I have a bunch of UIViews on the screen. I would like to know what's the best to way to check if a ... there a better 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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252 views

1 answer

objective c - Region Monitoring Glitch on iOS 7 - Multiple Notifications at the same time

I have been developing region monitoring on iOS for about 2 months. Recently we have found a glitch where all the ... if there is any). Thanks. See Question&Answers more detail:os...

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

0 votes

264 views

1 answer

objective c - When to use self on class properties?

When is self needed for class properties? For example: self.MyProperty = @"hi there"; vs MyProperty = @" ... a difference to memory management? See Question&Answers more detail:os...

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

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