Recent questions tagged objective

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objective c - How to set NSString's background cornerRadius on iOS7

I want to set NSString's background cornerRadius on iOS7. But,NSString don't have layer... Please tell ... cornerRadius on iOS7? example See Question&Answers more detail:os...

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

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256 views

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objective c - Core-Data iPhone: could not locate an NSManagedObjectModel

I am using Apple's CoreDataBooks sample project as a learning aid for core data. I modified the app so that ... the proper steps to resolve 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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625 views

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objective c - How to add two NSNumber objects?

Now this must be easy, but how can sum two NSNumber? Is like: [one floatValue] + [two floatValue] or exist a better way? 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 - Is there a way to specify argument position/index in NSString stringWithFormat?

C# has syntax that allows you to specify the argument index in a string format specifier, e.g.: string ... be useful for localization purposes. See Question&Answers more detail:os...

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

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491 views

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objective c - Replace all NSNull objects in an NSDictionary

I'm curious, I currently have an NSDictionary where some values are set to an NSNull object thanks to the help of ... out on my own. Thanks! See Question&Answers more detail:os...

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

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428 views

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objective c - How to use reachability class to detect valid internet connection?

I'm new to iOS development and am struggling to get the reachability.h class to work. Here is my code for ... obvious that I am doing wrong? See Question&Answers more detail:os...

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

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294 views

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objective c - XCode 5 unit testing: starts my app

When I run my tests in XCode 5, the main window of my OS X app appears on the screen for a couple of ... tests it still opens my main window. See Question&Answers more detail:os...

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

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348 views

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objective c - Making a phone call in an iOS application

I have some code which attempts to make a call within an application, but it doesn't seem to be working: ... rid of all the extra punctuation? See Question&Answers more detail:os...

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

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534 views

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objective c - Rounded Corners only on Top of a UIView

Hi i am searching a clean solution without overwriting drawRect or stuff like that to create a UIView with Rounded ... so hard 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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855 views

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objective c - Convert NSString into char array

I have a variable of type char[] and I want to copy NSString value in it. How can I convert an NSString to a char array? See Question&Answers more detail:os...

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

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352 views

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objective c - How to send objects in NIB files to front/back?

How can I adjust the "z"-positions of objects (e.g. sending UIImageViews to the front/back) in the integrated interface builder in Xcode? See Question&Answers more detail:os...

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

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311 views

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objective c - Shift hue of an RGB Color

I'm trying to write a function to shift the hue of an RGB color. Specifically I'm using it in an iOS app, ... way to make my code work. Thanks! See Question&Answers more detail:os...

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

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351 views

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objective c - iOS 11 - Keyboard Height is returning 0 in keyboard notification

I have been using Keyboard notifications without any problem and getting exact height of Keyboard. - (void)keyboardDidShow ... xcode 9 Beta 5 See Question&Answers more detail:os...

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

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338 views

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objective c - NSError and __autoreleasing

Can someone please explain to me the purpose of having __autoreleasing in the following sample code block? ... their NSError example. See Question&Answers more detail:os...

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

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548 views

1 answer

objective c - Creating breakpoint in Xcode for unrecognized selector

Is it possible to set the breakpoint in Xcode to have the debugger stop only on unrecognized selector? I ... selector exception, nothing 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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371 views

1 answer

objective c - 2D arrays using NSMutableArray

I need to create a mutable two-dimensional array in Objective-C. For example I have: NSMutableArray *sections; ... do that in Objective-C? See Question&Answers more detail:os...

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

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331 views

1 answer

objective c - how to register the app to open the pdf file in my app in ipad

i want to open the pdf file in my app from pdf page, but i am not getting any option of opening the pdf in my ... i open the pdf file in my app. See Question&Answers more detail:os...

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

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388 views

1 answer

objective c - Correct crop of CIGaussianBlur

As I noticed when CIGaussianBlur is applied to image, image's corners gets blurred so that it looks like ... is background of everything): See Question&Answers more detail:os...

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

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444 views

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objective c - duplicate symbols for architecture i386 clang

I've seen several posts on google and stackoverflow related to this error, I've read all of them ... /AppDelegate-56890B6B994A4284.o Thanks. See Question&Answers more detail:os...

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

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583 views

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objective c - MKMapKit Scale for Printing

I'm using MKMapKit in a MacOS application to show the Apple Maps, and I do not seem to be able to find any way ... pixels is too small. Does anyone have any helpful hints for me?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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