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Recent questions tagged objective
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objective c - Core Data Fault
I am mapping Json Data from Server using Restkit and I am Displaying those data by fetching from db. There is a ... ; data: <fault>) Any idea See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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71.8m
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objective
0
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533
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objective c - keyDown not being called
I have a custom NSView called SurfaceView. It is the contentView of a NSWindow and it handles basic ... [window makeFirstResponder:mainView]; See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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objective
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513
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objective c - UITableView - Directly setting tableHeaderView property vs. Implementing -viewForHeaderInSection method
What's the difference between directly setting the tableHeaderView/tableFooterView properties: UIView *headerView = [[ ... return headerView; } See Question&Answers more detail:os...
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Oct 24, 2021
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Technique[技术]
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深蓝
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71.8m
points)
objective
0
votes
406
views
1
answer
objective c - Why NSNumber points to the same address when value are equals?
Given the following code: int firstInt, secondInt; firstInt = 5; secondInt = 5; NSNumber *firstNumber = [ ... as expected. Thanks, Jérémy See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
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71.8m
points)
objective
0
votes
553
views
1
answer
objective c - Setting delegate to nil in dealloc
In Objective-C, I understand that if an object sets itself as the delegate of another object, it should set that ... is the purpose of that? See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
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71.8m
points)
objective
0
votes
550
views
1
answer
objective c - sprite kit sprite not being colorized
I'm trying to colorize a spriteNode (in this case its named background) using sprite kit but cant get the color ... sprites and it never works. See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
556
views
1
answer
objective c - using ARC, lifetime qualifier assign and unsafe_unretained
i'm a little confused about these two qualifiers... With ARC instead of using weak (i.e. if I need support ... can find only a few rows here See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
555
views
1
answer
objective c - Why does this create a memory leak (iPhone)?
//creates memory leak self.editMyObject = [[MyObject alloc] init]; //does not create memory leak MyObject *temp = ... a way to free the memory? See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
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71.8m
points)
objective
0
votes
585
views
1
answer
objective c - Why NSNotFound isn't -1 but NSIntegerMax
NSNotFound is defined as NSIntegerMax, which has different values on 32-bit and 64-bit, this brings a lot ... these results are inconsistent. See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
501
views
1
answer
objective c - Sort characters in NSString into alphabetical order
I'm trying to re-arrange words into alphabetical order. For example, tomato would become amoott, or stack ... the NSString object itself? See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
750
views
1
answer
objective c - Get NSWindow* from CGWindowListCopyWindowInfo
I have accomplished listing all the windows (in z order from front to back I think/hope) using ... that would be awesome! See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
452
views
1
answer
objective c - Errors when making circular reference imports
My program was running fine, but I changed something and now it has over 48 errors. I think I know the problem ... } -(IBAction) aOpenWeb; @end See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
384
views
1
answer
objective c - SKPhysicsBody bodyWithPolygonFromPath memory leaks
I have a strange memory leaks when creating Sprite Kit physics bodies with custom shapes. This is how my ... I'm doing something wrong. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
522
views
1
answer
objective c - iOS - Custom table cell not full width of UITableView
I may be going about this wrong. So I have created a UITableView that essentially has ... setSelectionStyle:UITableViewCellSelectionStyleNone]; See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
506
views
1
answer
objective c - iphone UIAlertView Modal
Is it possible to present a UIAlertView and not continue executing the rest of the code in that method until the ... alert? Thanks in advance. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
497
views
1
answer
objective c - Better way to convert NSArray of NSNumbers to array of NSStrings
I have an NSArray consisting of NSNumbers and I want to convert this to an NSArray of NSStrings, by getting the ... this. Do you know one? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
293
views
1
answer
objective c - Adding a delegate to a custom UITableViewCell (bad access error)
I'm trying to add a custom delegate to a custom UITableViewCell of mine. On this cell I have a button which ... for all of your support anyhow! See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
916
views
1
answer
objective c - NSBundle pathForResource returns nil
I've been trying to load a simple text file in a unit test for an iOS app. NSString* resourcePath = [[ ... Any help is very much apprechiated. See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
827
views
1
answer
objective c - Converting NSObject to NSDictionary
Hello I a class of type NSObject: ProductDetails *details = [[ProductDetails alloc] init]; details.name ... /convert-nsobject-to-nsdictionary See Question&Answers more detail:os...
asked
Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
1.0k
views
1
answer
objective c - What is difference between self.timer = nil vs [self.timer invalidate] in iOS?
Can anyone explain me self.timer=nil vs [self.timer invalidate]? What exactly happens at the memory location of ... I will update that too. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
765
views
1
answer
objective c - How to retrieve a file/resource in a iOS framework bundle from a main program?
I use methods about creating a universal binary framework for iOS development to distribute a library. I would also ... Returns nil Any ideas? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
400
views
1
answer
objective c - Is it dangerous to set off an autoreleased NSOperationQueue?
I have a task that takes a rather long time and should run in the background. According to the documentation, ... and take theTask with it? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
368
views
1
answer
objective c - iOS7 Core Location not updating
I have a very simple app example that initialises and updates the users location.. On device it successfully throws ... has changed since iOS7? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
491
views
1
answer
objective c - NSDictionary keys sorted by value numerically
I store names as keys and scores as values into an NSDictionary for saving in NSUserDefaults. I then ... :@selector(compare:)]; See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
566
views
1
answer
objective c - UITableViewCell selection Storyboard segue is slow - double tapping works though
I have a UITableViewController in a Storyboard. I have the selection of my UITableViewCell prototype trigger a segue to ... issue to me... See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
503
views
1
answer
objective c - Why subclass NSObject?
What is the purpose/use of NSObject in Objective-C? I see classes that extend NSObject like this: ... declaring inheritance from NSObject? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
460
views
1
answer
objective c - simulator name is shown with id instead of os name in Xcode 6.2
I've installed additional ios simulators(7.1) just after installing Xcode 6.2 and now the simulator names look like ... do I change the names? See Question&Answers more detail:os...
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Oct 24, 2021
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Technique[技术]
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深蓝
(
71.8m
points)
objective
0
votes
456
views
1
answer
objective c - Override ringer volume in iPhone apps
I have built an app that plays lots of sounds the easy way: AudioServicesPlaySystemSound(someSoundID); When I use ... my application's volume? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
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深蓝
(
71.8m
points)
objective
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