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Recent questions tagged objective
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objective c - Hiding NSLog output coming from precompiled library
I am using a precompiled library I don't have the source of and it's printing a lot of debug logs. Is ... output from just a specific library? See Question&Answers more detail:os...
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Oct 24, 2021
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Technique[技术]
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objective
0
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1.1k
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1
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objective c - NSDate from NSString
I've read the DateFormatting guide and I'm still not able to get a working formatter. NSString *string ... = [dateFormat dateFromString:string]; See Question&Answers more detail:os...
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Oct 24, 2021
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904
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objective c - Printing UIImage using AirPrint causes cut-off content
I am printing out a UIImage using AirPrint but the margins aren't correct. This is what it ... :YES completionHandler:completionHandler]; 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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779
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answer
objective c - Pass Index Number between UITableView List segue
When I click a certain list item in my UITableView, I want to pass the index of the item that I clicked ... .currentIndex = indexPath.row; } } 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
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objective
0
votes
785
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1
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objective c - Hide status bar in iOS without removing its view
I want to hide status bar in my iPhone app on a button press and I want to show it again on pressing another ... hidden and there is no jump. 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
847
views
1
answer
objective c - How to stop current NSOperation?
I'm using NSOperationQueue, and NSOperation for running some function on background click. But I want to be ... to stop immediately. Thanks 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
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735
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answer
objective c - Duplicate Symbol Error
I'm not sure what I did but I added an IBOutlet to display an additional attribute in a TableView cell. When ... be wrong though). Any ideas? 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
points)
objective
0
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806
views
1
answer
objective c - Quick way to sum a property of all objects within an NSSet?
I thought there was a way to quickly ask a NSSet to poll its members and return a sum of say an NSInteger ... . Does the better way exist? 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
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1.0k
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1
answer
objective c - is it possible to combine non-ARC and ARC project code?
Is it possible to combine ARC and non-ARC projects? I haven't really tried it yet but this is the scenario: We ... project's view to the tab. 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
votes
936
views
1
answer
objective c - Do NSString objects need to be alloc and init?
Noob question: I'm currently under the impression that when you want to create an object, you need to alloc and ... explain why this is so? 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
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objective
0
votes
895
views
1
answer
objective c - Remove launch screen, Xcode 7
I can find a bunch of answers from pre-2014 about removing the launch/splash screen by removing the line "Launch ... in Objective-C by the way. 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
852
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answer
objective c - Subclassing UIAlertController
With pre-iOS 8 we had to use the UIAlertView and UIActionSheet Which we weren't allowed to mess with the ... approve or reject our applications? 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
784
views
1
answer
objective c - DynamoDB auto incremented ID & server time (iOS SDK)
Is there an option in DynammoDB to store auto incremented ID as primary key in tables? I also need to store ... at" like fields. Thanks. 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
777
views
1
answer
objective c - OpenSans font not working in iOS simulator
I'd like to use the OpenSans font on a UILabel, but it's not showing up in the iOS simulator. All that ... what is causing this bizarre bug? 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
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objective
0
votes
1.0k
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1
answer
objective c - “Expected method body” error
I had my application working fine, then without doing anything, out of nowhere I got 2 errors in appDelegate ... ) UIWindow *window; @end 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
1.1k
views
1
answer
objective c - Count Number of Rows in a SQLite Database
I'm trying the following code to count the number of rows in my SQLite database table, but it throws an exception. ... (@"Error Counting"); } } 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
872
views
1
answer
objective c - Is literal creation of an NSMutableDictionary less efficient than the class helper method?
Is it appreciably more efficient to create an NSMutableDictionary using a constructor [NSMutableDictionary ... mutableCopy]; 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
1.2k
views
1
answer
objective c - Accent insensitive string comparison?
Is there any way to do an accent insensitive string comparison? For example, é == e? I couldn't find any ... :. Any help is greatly appreciated. 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
1.2k
views
1
answer
objective c - UIPopoverPresentationController should have a non-nil sourceView or barButtonItem set before the presentation occurs on iOS 9
I'm trying to show a popup using a custom UIPopoverPresentationController class. But it crashes with the error(< ... here? Appreciate your help 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
985
views
1
answer
objective c - Using -setImage on NSButton
I am trying to make an image an button (NSButton) in a Cocoa application, below is the code I am trying ... an image. Thanks in advance! 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
852
views
1
answer
objective c - iPhone XMLParser help
I am needing to parse an XML file for my app and I dont have any clue how to do it. I went through one ... too. (the XML file is about 8MB) 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
859
views
1
answer
objective c - Change font size without Change UITextView attributedText
I try to change a font size in my UITextView and every time I change the attributedText was restore to ... .font.fontName size:textSize]; See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
860
views
1
answer
objective c - importing one Xcode project into another
I am trying to import one of my xcode projects into another, and I was just wondering if there were some best ... to make this happen? Thanks. 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
1.1k
views
1
answer
objective c - NSString Unicode display
I want to look at the display of a number of Unicodes using a forLoop. However the compiler doesn't ... universal character name u00B } thanks See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
863
views
1
answer
objective c - iOS AVPlayer cant play 240 fps video
I recorded a 240 fps video after changing the AVCaptureDeviceFormat. If I save that video in the ... playerController.player = feedVideoPlayer; See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
732
views
1
answer
objective c - Where and how should I instantiate an object which will be used globally in an IOS app?
For simplicity's sake, lets say I am making a stopwatch application for ios5. I have a class called stopwatch ... ios applications. Thank you! See Question&Answers more detail:os...
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Oct 24, 2021
in
Technique[技术]
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深蓝
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71.8m
points)
objective
0
votes
795
views
1
answer
objective c - iPhone SDK: How do I pass an array of values from a ViewController onto other ViewController?
I tried creating a method like below in SecondViewController: -(void)setValue:(NSMutableArray*)array { //NSMutableArray ... What could be wrong? 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
814
views
1
answer
objective c - NSURLConnection needs a NSRunLoop to execute?
I'm trying to fetch the contents of a URL from a method called connect. It reads its configuration settings and attempts ... is: %@", string); } 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
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