Recent questions tagged Cocoa

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I am trying to recreate something similar to the popup keyboard used in safari. I am able to visually reproduce ... has touched the done button. See Question&Answers more detail:os...

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

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cocoa touch - Measuring the pixel width of a string

I need to measure the pixel width of a string in Cocoa Touch. Can anyone point me to a link that explains how 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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cocoa - Using frameworks in a command line tool

I've built a command-line utility (Foundation tool) in Xcode, using Cocoa. The tool makes use of a 3rd ... link in the 3rd party framework? See Question&Answers more detail:os...

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

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cocoa touch - What are the default attributes for Objective-C properties?

What are the default attributes for a properpty when you do not list any in objective C? Such as for example if I ... , does it retain...etc.? See Question&Answers more detail:os...

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

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cocoa - NSMutableArray initWithCapacity nuances

Does anyone have advice on how to best initialize an NSMutableArray when it comes to dictating the capacity? The ... usage of this data type? See Question&Answers more detail:os...

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

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cocoa touch - How do I animate MKAnnotationView drop?

I have a custom MKAnnotationView where I set my image myself in viewForAnnotation. How do I animate it' ... annotation; return annotationView; } See Question&Answers more detail:os...

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

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cocoa touch - How do I pan the image inside a UIImageView?

I have a UIImageView that is displaying an image that is wider and taller than the UIImageView is. I would like ... the view in the same spot. See Question&Answers more detail:os...

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

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402 views

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cocoa touch - Open a view controller when a iOS push notification is received

I want to open a specific view controller when a user clicks on the received push notification message, but ... the iOS push notifications. See Question&Answers more detail:os...

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

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cocoa - Iterate through files in a folder and its subfolders using Swift's FileManager

I'm quite new to programming a Swift and I'm trying to iterate through the files in a folder. I took a ... to then do something with them. See Question&Answers more detail:os...

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

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cocoa touch - Add an SQLite database to an iPhone app

I am trying to learn SQLite, and I am building an iPhone app. But I would like to add an SQLite database ... What would sample code look like? See Question&Answers more detail:os...

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

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cocoa - Is there a "right" way to have NSTextFieldCell draw vertically centered text?

I have an NSTableView with several text columns. By default, the dataCell for these columns is an ... dataCell] setVerticalCentering:YES]; See Question&Answers more detail:os...

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

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537 views

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cocoa touch - Is there a decent OpenGL text drawing library for the iPhone SDK?

I'm trying to figure out a simple to draw some text in OpenGL. My research has shown its a fairly complex ... easier approach that I am missing? See Question&Answers more detail:os...

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

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566 views

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cocoa - How can I duplicate, or copy a Core Data Managed Object?

I have a managed object ("A") that contains various attributes and types of relationships, and its ... Core Data documentation. TIA! See Question&Answers more detail:os...

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

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568 views

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cocoa touch - Have a reloadData for a UITableView animate when changing

I have a UITableView that has two modes. When we switch between the modes I have a different number of sections and ... on how I could 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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548 views

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cocoa touch - iPhone: Disable the "double-tap spacebar for ." shortcut?

By default, if you tap the spacebar twice on the iPhone or iPad, instead of getting " " (two spaces), you get " ... : Got it! See my post below. See Question&Answers more detail:os...

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

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404 views

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cocoa touch - Accessing the iPhone's Call log with the iPhone SDK

I am building application that required some data from iPhone's Call log(read only). The call log is a sqlite ... I'm a little confused. 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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840 views

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cocoa - Simulate keypress using Swift

I'm searching for a way to simulate keystrokes in OSX. I found another solution (Simulate keypress ... can i adapt CGEventCreateKeyboardEvent? See Question&Answers more detail:os...

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

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777 views

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cocoa - How do i convert NSAttributedString into HTML string?

As the title tells,now i can simple convert HTML into NSAttributedString with initWithHTML:documentAttributes: , but ... htmlString; } @end See Question&Answers more detail:os...

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

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578 views

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cocoa touch - Version of XSLT in iPhone

I plan to use XML/XSLT in my iPhone application. What version of XSLT is currently supported on the iPhone? Can I use XSLT 2.0 or just 1.0 ? See Question&Answers more detail:os...

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

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403 views

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cocoa touch - Localize Currency for iPhone

I would like my iPhone app to allow the input, display and storage of currency amounts using the appropriate ... of the iPhone's keyboards? See Question&Answers more detail:os...

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

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560 views

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cocoa - What's the difference between data source and delegate?

I have a fundamental question related to Cocoa frameworks design patterns. What's the difference between delegate ... has been answered. See Question&Answers more detail:os...

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

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511 views

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cocoa - NSURL URLWithString: is null with non-english accented characters

I have the following string... NSString *googleSearchString = @"http://www.google.com/search?q=lyrics+%22T?nder+P ... on how to handle that? See Question&Answers more detail:os...

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

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475 views

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cocoa touch - UITextField in UIAlertView on iPhone - how to make it responsive?

I placed a UITextField into a UIAlertView and moved it up so the keyboard wouldn't cover it up with the ... dismiss the keyboard? Thanks, Ben See Question&Answers more detail:os...

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

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589 views

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cocoa - Why can't code inside unit tests find bundle resources?

Some code I am unit testing needs to load a resource file. It contains the following line: NSString *path = [[ ... can't it find the file? See Question&Answers more detail:os...

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

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370 views

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cocoa - Deep copy of dictionaries gives Analyze error in Xcode 4.2

I have the following method in a NSDictionary category, to do a deep copy, which works fine. I just upgraded ... support ARC for this method. See Question&Answers more detail:os...

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

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609 views

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cocoa touch - Setting the iPhone keyboard language

I'd like the iPhone virtual keyboard to appear pre-set to a particular language (Russian for example) when the user ... do this in Cocoa code? See Question&Answers more detail:os...

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

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366 views

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cocoa - Remove Sandboxing

I have another question dealing with app sandboxing. So I need access to the users' home directory and at the ... ? Thanks for your help! See Question&Answers more detail:os...

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

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468 views

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cocoa touch - Ignoring certificate errors with NSURLConnection

I am getting this error The certificate for this server is invalid. You might be connecting to a server ... in the didReceiveResponse method. See Question&Answers more detail:os...

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

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