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Recent questions tagged objective
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objective c - Reading text file with NSString:stringWithContentsOfFile?
Reading text file with NSString:stringWithContentsOfFile? NSString *txtFilePath = [[NSBundle mainBundle] pathForResource:@"help" ... wrong ??? See Question&Answers more detail:os...
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objective c - UITextView with text less than 10 characters hangs iOS 9
Starting from iOS 9 (I used Xcode 7.0 beta 6 (7A192o)), an Objective-C app with UITextView will hang ... Is anyone also encountering this one?? See Question&Answers more detail:os...
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objective c - How safe is information contained within iPhone app compiled code?
I was discussing this with some friends and we began to wonder about this. Could someone gain access to URLs or ... -API key and secret values See Question&Answers more detail:os...
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Oct 24, 2021
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objective c - How to mix Qt, C++ and Obj-C/Cocoa
I have a pure C++/Qt project on a Mac, but I now find that I need to call a few methods only available ... i doing wrong in the example above? See Question&Answers more detail:os...
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Oct 24, 2021
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556
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objective c - NSNotificationCenter vs delegation - which is faster?
I have read a lot about the pros and cons of each , and i know delegates are usually for one listener, and ... , or there is no relation ? See Question&Answers more detail:os...
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Oct 24, 2021
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objective c - Specify images for iPad in Xcode like @2x for iPhone 4
I have upgraded my current target to iPad and made a universal app and the time for adjusting my iphone ... and set the frame programmatically? See Question&Answers more detail:os...
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Oct 24, 2021
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objective c - How do I redirect all errors, including uncaught exceptions, NSLog calls, and other logs, to a log file on Mac OS X?
I am attempting to find a logging framework for a Cocoa application, written in ObjC. What I've attempted so far: ... using your debugger!!!"). See Question&Answers more detail:os...
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Oct 24, 2021
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485
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objective c - How do you implement NSPageController to navigate through a webView's history
I have a webView-based app, but I want the user to be able to navigate it with swiping on the trackpad and magic ... 10.8 [webView goBack]; } } See Question&Answers more detail:os...
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Oct 24, 2021
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535
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objective c - Block gets released whilst in NSDictionary (ARC)
I'm trying to retain a reference to a Block that's been passed in to my class by a method, to call ... and it was never being stored. See Question&Answers more detail:os...
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Oct 24, 2021
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objective c - UIPageViewController - how Can I jump to a particular page number?
I have spent almost 8 hours finding out how to jump to a particular page number in UIPageViewController... ... UIPageViewController.... ??? See Question&Answers more detail:os...
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Oct 24, 2021
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553
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objective c - Default keyboard is not coming when Barcode Scanner Device is Connected by Bluetooth in IOS
I am facing issue with keyboard when barcode scanner device is connected using bluetooth. Flow: 1) I have turned ... . Thanks in Advance..! See Question&Answers more detail:os...
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Oct 24, 2021
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724
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objective c - Is self.iVar necessary for strong properties with ARC?
If I declare a property strong, like so: @property (strong, nonatomic) UIView *iVar; When I'm setting it, ... confused on the above questions. See Question&Answers more detail:os...
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Oct 24, 2021
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652
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objective c - iOS - Double tap on uibutton
I have a button and I'm testing the taps on it, with one tap it change a background color, with two ... button it works perfectly. Thanks. See Question&Answers more detail:os...
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Oct 24, 2021
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716
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objective c - ViewForAnnotation is not being called
I am trying to make a map, where I can see my current location, and see what the street is called. so ... should be purple of nothing at all See Question&Answers more detail:os...
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Oct 24, 2021
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789
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objective c - MFMailComposeViewController throws an error only in iOS 9
I can't get MFMailComposeViewController to open without throwing a fatal error in iOS 9 Simulator. The same code ( ... of this error. Thanks! See Question&Answers more detail:os...
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Oct 24, 2021
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753
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objective c - what's the difference between NSManagedObjectContext reset and rollback?
The documentation says: - (void)reset Returns the receiver to its base state. Discussion All the receiver's ... does -reset actually do? See Question&Answers more detail:os...
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Oct 24, 2021
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527
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objective c - Why isn't there Xcode for Windows?
Why can't Xcode be hacked to be able to run on Windows? Does Xcode have another programming methods? Also, ... not available in Windows? Thanks See Question&Answers more detail:os...
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Oct 24, 2021
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832
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objective c - iOS 9 supportedInterfaceOrientations not working
I have a UIViewController with the following code: - (BOOL) shouldAutorotate { return NO; } -(NSUInteger) ... 's the issue here? See Question&Answers more detail:os...
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Oct 24, 2021
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645
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objective c - How to override a superclass' property with more specific types?
The Scenario I have a situation where a base class called AbstractRequest has a delegate property of type id ... , is purely coincidental. See Question&Answers more detail:os...
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Oct 24, 2021
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711
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objective c - Storyboard and custom init
I recently tried working with the MainStoryboard.storyboard within Xcode and so far It's going pretty good and I'm ... data; } return self; } See Question&Answers more detail:os...
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Oct 24, 2021
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581
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objective c - Using NSLog for debugging
I have the following code snippet in my Xcode: NSString *digit [[sender titlelabel] text]; NSLog([digit]); ... does the message actually mean? See Question&Answers more detail:os...
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Oct 24, 2021
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Technique[技术]
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71.8m
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0
votes
709
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answer
objective c - How to use images asset catalog in cocoapod library for iOS
I have a cocoapod library which contains assets in 2 formats: a .storyboard XCode asset catalog .xcassets (with ... into any app? Thanks! See Question&Answers more detail:os...
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Oct 24, 2021
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71.8m
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objective
0
votes
368
views
1
answer
objective c - duplicate symbols for architectures in Xcode
Here is the error message I receive when compiling ... Ld /Users/ilia3546/Library/Developer/Xcode/DerivedData/ ... user quits the application and it begins the transition to...
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Oct 24, 2021
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Technique[技术]
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71.8m
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objective
0
votes
881
views
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answer
objective c - Casting a CFDictionaryRef to NSDictionary?
I have the code (stripped down): CFDictionaryRef *currentListingRef; //declare currentListingRef here NSDictionary * ... to an NSDictionary? See Question&Answers more detail:os...
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Oct 24, 2021
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Technique[技术]
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71.8m
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0
votes
504
views
1
answer
objective c - duplicate symbol _OBJC_METACLASS_$_ClassName
I am trying to run my cocos2d application and facing this error, as I have recently upgraded my sdk to ... /Objects-normal/i386/MenuScene.o See Question&Answers more detail:os...
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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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540
views
1
answer
objective c - Calculate distance between two locations using google map in iphone
I just want to calculate distance between two location . In which user can enter both the location's ... CLLocation using these addresses ? See Question&Answers more detail:os...
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Oct 24, 2021
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Technique[技术]
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71.8m
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485
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objective c - post link using facebook sdk on iphone
I have the demo facebook app and without any modification this is the code: SBJSON *jsonWriter = [[SBJSON new] ... app using the facebook sdk. See Question&Answers more detail:os...
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Oct 24, 2021
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556
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objective c - iOS8 and iOS7 Push Notification Payload
Since iOS8 came up with interactive notification, is there any significant changes to make Payload to send push ... lower versions of iOS? See Question&Answers more detail:os...
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Oct 24, 2021
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Technique[技术]
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71.8m
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