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Closed 10 years ago.
I am a newbie in cocoa . I really can't understand how to use NSTableView. Searched for a good example but couldn't find. Can anyone help me?
Google search resulted in some huge coding. but I think there must be some easier way
in Cocoa.
"Huge coding" is relative. You won't be able to implement a table with just a couple of lines of code. Implementing the data source and delegate methods of the table view will take at least 100 lines if not more. See Populating View-Based Table Views Programmatically.
An alternative might be using Cocoa Bindings to bind the content of your table view to an NSArrayController.
check this short but useful video:
http://www.youtube.com/watch?v=0dO02yQUH80
Related
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Closed 9 years ago.
Is it possible to store multiple small images or icons as parts of a single image, so that my webpage can get all the icons it needs from a single GET request. This would help my page load faster.
This is an example of the sort of composite image I'm referring to:
http://oi40.tinypic.com/2saaxac.jpg
It seems to me that it is some kind of array of images put into one file. I'm hoping there is some way that i can use each individual icon in the image in a project.
These are called sprite sheets, there's a great article about them on css-tricks that should help you understand how they work on the web.
CSS Sprites: What They Are, Why They’re Cool, and How To Use Them
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Closed 11 years ago.
I'm trying to use Xcode 4's Interface Builder, but I'm a bit lost when it comes to some of the terms being used. I'm not familiar with File's Owner, delegates, controllers, etc.
Is there a good tutorial out there that can explain how to use Interface Builder, what these terms mean, and how I can use Interface Builder to properly connect my UI elements?
You want the Cocoa Fundamentals Guide. Read it beginning to end.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
how can i create custom interfaces in xcode 4? i've seen programs like Kaleidoscope (http://designshack.co.uk/images/designs/kaleidoscope-for-mac.jpg) using custom controls or something not available for drag and drop on xode.
any help? thanks
You'll get better help if you take the time to craft more specific questions.
Since you're speaking generally, I'll answer generally: Xcode 4 will not help you create custom interfaces (at least not beyond letting you edit the code to build them). This is done entirely in code.
Learn to draw with Cocoa then learn how controls and cells work, then ask specific questions when you don't understand.
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Closed 12 years ago.
How to hide the text in the picture using the least significant bit ?
It looks like you're not sure what you're asking. Perhaps go and research the general idea of steganography.
Short answer: don't.
Slightly longer answer: it's a very inefficient form of steganography, it won't work for JPEG images, and for GIF/PNG it'll basically make your image uncompressable.
If you need stega for anything else but curiosity or school assignments, research existing offerings.
The technique you're thinking of is called Steganography. Here's a good post which explains the technique. http://www.dreamincode.net/forums/topic/27950-steganography/
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 12 years ago.
For the last few hours I have tired to get my head around using NSXMLParser.
I understand parts of how it works.
WHY Oh WHY! is this so hard? Is there an easy way to do it, like just name the tag and get the contents?
Oh how I miss XmlDocument object from .Net.
Thanks a million.
Why don't you try NSXMLDocument instead? With it you can do the kind of things you want using xpaths. Check out the docs or this sample code : http://developer.apple.com/mac/library/iPad/index.html#samplecode/XMLBrowser/Introduction/Intro.html%23//apple_ref/doc/uid/DTS40008875