Recent questions tagged objective

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objective c - Target pattern contains no '%'. Makefile

I have searched this problem in google, but still don't have some way to resolve a problem. I have 2 Makefiles: One ... make: *** [all] Error 2 See Question&Answers more detail:os...

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

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482 views

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objective c - sound and Nstimer stopped when iphone is in deepsleepmode?

I am creating an application in which I'm using nstimer and avaudioplayer to play sound,but both sound and timer ... self.TickPlayer play]; } } See Question&Answers more detail:os...

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

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529 views

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objective c - iOS 6 UIGestures (Tap) stops working with QLPreviewController

Currently I'm using a QLPreviewController in a navigation controller. (pushViewController) To hide the navigationbar I ... navigation bar. Ty. See Question&Answers more detail:os...

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

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541 views

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objective c - How to make the union between two MKCoordinateRegion

I'm trying to do the union between two MKCoordinateRegion. Does anybody have an idea on how 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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444 views

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objective c - PDF View with horizontal scroll

I'd like to get some tip about how implement a PDF View that scrolls horizontally. I know how implement a ... but just with vertically scroll. See Question&Answers more detail:os...

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

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422 views

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objective c - Implementing Autocomplete in iOS

I am creating an application where I need to implement autocompletion when a user is typing into an text ... be greatly appreciated, 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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594 views

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objective c - Securely zero out memory in NSString

On iOS, I was wondering, say if I read user provided password value as such: NSString* strPwd = UITextField.text; ... idea how to zero it out? See Question&Answers more detail:os...

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

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639 views

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objective c - NSLog without new line

Is there any function that does what NSLog does but without the new line at the 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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467 views

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objective c - Mac OS X: Getting detailed process information (specifically its launch arguments) for arbitrary running applications using its PID

I am trying to detect when particular applications are launched. Currently I am using NSWorkspace, registering for ... more high level. See Question&Answers more detail:os...

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

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407 views

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objective c - iOS Fix search bar on top of the UITableViewController?

I'm adding search bar on table header and floating it in scrollViewDidScroll method, but when i scroll without ... and table header together? See Question&Answers more detail:os...

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

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402 views

1 answer

objective c - How to execute external program from Swift?

I am new in Swift and I did not found anything about executing external programs or access external processes ... my Swift program? 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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488 views

1 answer

objective c - NSString allocation and initializing

What is the difference between: NSString *string1 = @"This is string 1."; and NSString *string2 = [[NSString alloc ... why this is so. 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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485 views

1 answer

objective c - Why can't LLDB evaluate this expression?

Neither one of these statements can be processed by LLDB... why is it unable to come up with the NSString result ... @"Wow this doesnt work??"] See Question&Answers more detail:os...

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

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595 views

1 answer

objective c - Float is 0 after integer division

It might be a simple solution but I can not fix it. I am dividing 2 integers : finishedGameFinalScore = [ ... the decimal result. Thanks Shani See Question&Answers more detail:os...

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

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578 views

1 answer

objective c - iphone app - detect which tab bar item was pressed

i have a tab bar based application, with more than 5 tab bar items - so i get 4 of them directly showing ... when pressed? Thank you 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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426 views

1 answer

objective c - combinations of a set with given number elements

i have tried to do that but could not figure it out , lets say i have a set : {1,2,3,4,5} and i ... with that i will be really happy.. regards. See Question&Answers more detail:os...

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

0 votes

336 views

1 answer

objective c - Why is XCode archive acting different than XCode build/run on iPhone

I have an app for the iPhone developed on XCode 4. It works correctly in the following environments: iPhone ... runs fine. 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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446 views

1 answer

objective c - How to do sparse array in Cocoa

I have an undetermined size for a dataset based on unique integer keys. I would like to use an ... existing NSMutableArray? Thanks, Roman See Question&Answers more detail:os...

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

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575 views

1 answer

objective c - Localized phone number formatting

I've looked into NSFormatter, NSNumberFormatter, and the other formatting classes, but can't find a build into ... class that manages 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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710 views

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objective c - parsing NSString to Double

so I want to convert NSString to double. I found the following example: NSString * s = @"1.5e5"; NSLog(@"%lf" ... 't really know how to do 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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473 views

1 answer

objective c - What is the difference between NSString* mystring and NSString *mystring

I've come across several examples which declares classes in the header differently like NSString* mystring; or ... What's the difference? See Question&Answers more detail:os...

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

0 votes

467 views

1 answer

objective c - Generate keyboard events for the frontmost application

In Mac OS / Cocoa, may I synthesize keyboard entries - strings - for the frontmost application in a transparent way? ... what I want to do. See Question&Answers more detail:os...

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

0 votes

374 views

1 answer

objective c - iOS lazy-loading of table images

I have successfully implemented lazy-loading of images in my app using the example provided by apple here. The ... I've been missing something. See Question&Answers more detail:os...

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

0 votes

544 views

1 answer

objective c - Convert hex string to long

Are there any Cocoa classes that will help me convert a hex value in a NSString like 0x12FA to a long or ... hex numbers. Thanks, Hua-Ying See Question&Answers more detail:os...

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

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649 views

1 answer

objective c - Under ARC, is it still advisable to create an @autoreleasepool for loops?

Let's say that I have a loop that returns a bunch of autoreleased NSData objects... NSData* bigData = ... initWith... methods whenever possible? See Question&Answers more detail:os...

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

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775 views

1 answer

objective c - NSClassFromString returns nil

Why does NSClassFromString return nil ? As per the definition it has to return class name. How should I take ... solve this in Objective-C? See Question&Answers more detail:os...

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

0 votes

418 views

1 answer

objective c - How to zip folders in iPhone SDK?

In my Application,I am taking screenshots of image View and then I am saving those screen shots in document ... ? Any help is appreciated! See Question&Answers more detail:os...

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

0 votes

352 views

1 answer

objective c - Setting Up a UICollectionView in iOS

I've been hunting around for ways to setup a UICollectionView for an iOS app. Google only turns up a few ... can one setup a UICollectionView? See Question&Answers more detail:os...

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

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