Recent questions tagged Cocoa

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cocoa - How to set up gcov for code coverage analysis in iPhone SDK?

I've recently begun unit testing an app I write for the iPhone. I have the basics of creating my own ... this would be greatly appreciated. See Question&Answers more detail:os...

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

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587 views

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cocoa - How can I escape unicode characters in a NSString?

When I store a NSString inside some NSDictionary and log that dictionary to the console like this: NSString ... to this escaped representation? See Question&Answers more detail:os...

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

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cocoa - Locating bundles by identifier

I want to create a bundle from an arbitrary bundle identifier e.g. com.apple.iokit.IOStorageFamily It's not an ... is there a more general way? See Question&Answers more detail:os...

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

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cocoa touch - iPhone UIView Animation Disables UIButton Subview

So I've got a problem with buttons and animations. Basically, I'm animating a view using the UIView ... along with the view correctly. See Question&Answers more detail:os...

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

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439 views

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cocoa - Xcode: Is there a location/flag to prevent a Class from compiling?

Is there a place (or flag) in Xcode for files that you don't want to compile? There are some classes that ... these new Classes are "ready"? See Question&Answers more detail:os...

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

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536 views

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cocoa - Help sorting an NSArray across two properties (with NSSortDescriptor?)

I'm a bit of a NSSortDescriptor n00b. I think, though, it is the right tool for what I need to do: I ... unless it's the most efficient way. See Question&Answers more detail:os...

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

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cocoa - Completely disable NSTextView spell checking

How can I disable spell checking for an NSTextView? In particular, the red lines that are automatically drawn. I ... take the red lines away. See Question&Answers more detail:os...

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

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774 views

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cocoa - Completely disable NSTextView spell checking

How can I disable spell checking for an NSTextView? In particular, the red lines that are automatically drawn. I ... take the red lines away. See Question&Answers more detail:os...

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

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cocoa touch - Gnu Scientific Library in iOS

How can I use the GNU Scientific Library in an iOS application? I tried following this tutorial: http://www.os- ... SDK instead of the iOS SDK. See Question&Answers more detail:os...

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

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cocoa touch - Programmatically access iPhone System Setting

Is it possible to access and/or set general iPhone system settings like "WiFi On/Off" etc? See Question&Answers more detail:os...

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

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431 views

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cocoa - Handling Core Data Model Changes

I know that if you change the Core Data model and you have run the app before on the old model that you ... already saved data is not lost? See Question&Answers more detail:os...

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

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410 views

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cocoa touch - iphone application distribution build contains a bug

Solution: This has been solved following the assistance of many people. I'm now writing this, so that ... [self.textView setNeedsDisplay]; } See Question&Answers more detail:os...

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

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434 views

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cocoa touch - iPhone Development - Non documented UIProgressHUD class

I've only heard about what UIProgressHUD class do, but i cannot find the implementation of this class or any ... a message). Thanks. Mustafa See Question&Answers more detail:os...

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

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555 views

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cocoa - How does Xcode decide which XIB to show first

When I create a new cocoa project in Xcode, it creates a MainMenu.xib file with a Window. I would like to separate ... up when I start the app? See Question&Answers more detail:os...

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

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472 views

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cocoa touch - NSDataDetector with NSTextCheckingTypeLink detects URL and PhoneNumbers!

I am trying to get an URL from a simple NSString sentence. For that I use NSDataDetector in the following ... URL without that telephone number? See Question&Answers more detail:os...

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

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743 views

1 answer

cocoa - Given model object, how to find index path in NSTreeController?

Given model objects that NSTreeController represents, how do you find their index paths in the tree and subsequently ... to it. Any ideas? See Question&Answers more detail:os...

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

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573 views

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cocoa - NSButton setAlignment does not work

I used [button setAlignment:NSCenterTextAlignment]; to make the text display at the center of the button. It ... '. Welcome any comment See Question&Answers more detail:os...

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

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683 views

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cocoa - Can NSCollectionView autoresize the width of its subviews to display one column

I have an NSCollectionView that contains a collection of CustomViews. Initially it tiled the subviews into columns ... right direction? Anthony See Question&Answers more detail:os...

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

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417 views

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cocoa - In Objective C, why am I allowed to assign an NSArray to an NSMutableArray without error or warning?

I'm disturbed by a weird behavior, illustrated by the following example: NSMutableArray *a1 = [[NSMutableArray ... still return id, though See Question&Answers more detail:os...

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

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528 views

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cocoa - Downcasting in Swift with as and as?

What's the difference between these two code snippets: let cell = tableView.dequeueReusableCellWithIdentifier("cellId") ... exactly the same? See Question&Answers more detail:os...

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

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507 views

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cocoa - Objective-C - readonly properties not synthesized with underscore ivar?

If I understand correctly, in Objective-C, properties are automatically synthesized with getters and setters, with the ... 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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589 views

1 answer

cocoa - Transform an NSAttributedString to plain text

I have an instance of NSData containing attributed text (NSAttributedString) originating from an NSTextView. I want ... retains all formatting. See Question&Answers more detail:os...

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

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531 views

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cocoa touch - Media Callbacks with Embedded YouTube Videos on iOS

I'm embedding YouTube videos in a UIWebView for an iOS app. I'm using Method 2 at this YouTube blog ... tried that and not gotten success). See Question&Answers more detail:os...

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

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481 views

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cocoa - Objective-C retain counts clarification

I kind of understand what's retain counts for. But not totally. I looked on google a lot to try to understand ... and why using them? 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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491 views

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cocoa - NSURLConnection delegation and threading - iPhone

I have a class that updates two .plist files in the app documents directory via an NSURLConnection. The class ... delegate methods here ... See Question&Answers more detail:os...

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

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683 views

1 answer

cocoa - Is it possible to replace the Mac login screen?

Is it possible to replace the Mac OS X login window, /System/Library/CoreServices/loginwindow.app, with a custom ... don't work for Apple). See Question&Answers more detail:os...

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

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699 views

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cocoa - Ugly looking text when drawing NSAttributedString in CGContext

I want to display strings inside CoreAnimation layers, but unfortunately CATextLayer is not enough, mostly because it' ... Anything I'm missing? See Question&Answers more detail:os...

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

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624 views

1 answer

cocoa - How to resize WebView according to its content?

I want to set simple html contents within a web view and then resize it according to its content. To set ... solution for it? Thanks, Miraaj See Question&Answers more detail:os...

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

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