2014/10/15 下午 10:05:28

iphone Programming Glossary: constant

Using AFNetworking and HTTP Basic Authentication

http://stackoverflow.com/questions/12440059/using-afnetworking-and-http-basic-authentication

^ _sharedManager self alloc initWithBaseURL NSURL URLWithString @ http localhost 3000 You should probably make this a constant somewhere return _sharedManager @end Then in your code you can call it like this SBAPIManager sharedManager setUsername.. ^ _sharedManager self alloc initWithBaseURL NSURL URLWithString @ http localhost 3000 You should probably make this a constant somewhere return _sharedManager @end Then in your code you can call it like this SBAPIManager sharedManager setUsername..

How to convert NSArray to NSData?

http://stackoverflow.com/questions/1286212/how-to-convert-nsarray-to-nsdata

What does the Tiler Utilization statistic mean in the iPhone OpenGL ES instrument?

http://stackoverflow.com/questions/1287811/what-does-the-tiler-utilization-statistic-mean-in-the-iphone-opengl-es-instrumen

you 胩e sending. For starters I 羮 try binning your atoms and bonds by color and sending each of these bins using a constant color instead of an array. I 羮 also suggest investigating if shorts are suitable for your positions and normals given appropriate..

How can I get a writable path on the iPhone?

http://stackoverflow.com/questions/1567134/how-can-i-get-a-writable-path-on-the-iphone

that even though the user cannot see files in iTunes using a device older than 3.2 the iPad the NSLibraryDirectory constant has been available since iPhoneOS 2.0 and so can be used for builds targeting 3.0 or even earlier if you are still doing..

How to use UIProgressView while loading of a UIWebView?

http://stackoverflow.com/questions/1900151/how-to-use-uiprogressview-while-loading-of-a-uiwebview

It is possible that the expectedContentLength property of the NSURLResponse is going to be 1 NSURLReponseUnknownLength constant . In that case I would suggest throwing up a standard UIActivityIndicator that you shut off inside connection didFinishLoading..

Available memory for iPhone OS app

http://stackoverflow.com/questions/2798638/available-memory-for-iphone-os-app

memory for iPhone OS app Is there a function or constant defining the amount of available memory for an app in iPhone OS I'm looking for a device independent way iPod touch iPhone..

UITableView scroll smooth with certain speed?

http://stackoverflow.com/questions/3979119/uitableview-scroll-smooth-with-certain-speed

I used the method scrollToRowAtIndexPath atScrollPosition animated But this method will make the table scroll with a constant duration. So you will not really recognize a long or short spin. I'm looking for a way to A Slow down the scroll animation...

How can my iphone app detect its own version number?

http://stackoverflow.com/questions/458632/how-can-my-iphone-app-detect-its-own-version-number

a header file with my current Subversion revision number. That revision number is stored in the kRevisionNumber constant. I can then access the version and revision number using something similar to the following NSString stringWithFormat @..

Is there a way to make drawRect work right NOW?

http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now

withObject nil waitUntilDone NO Note that I've found the NO argument in the previous method to be needed to get constant UI updates while dealing with a continuous progress bar. This sample application I created for my class illustrates how..

How do I size a UITextView to its content?

http://stackoverflow.com/questions/50467/how-do-i-size-a-uitextview-to-its-content

not work if auto layout is ON. With auto layout the general approach is to use the sizeThatFits method and update the constant value on a height constraint. CGSize sizeThatShouldFitTheContent _textView sizeThatFits _textView.frame.size heightConstraint.constant.. a height constraint. CGSize sizeThatShouldFitTheContent _textView sizeThatFits _textView.frame.size heightConstraint.constant sizeThatShouldFitTheContent.height heightConstraint is a layout constraint that you typically setup via a IBOutlet by linking..

NSString retainCount is 2147483647 [duplicate]

http://stackoverflow.com/questions/5483357/nsstring-retaincount-is-2147483647

. Not ever. It is useless. Why it is such a ridiculous number is because of an implementation detail. @ ... is a constant string. NSString can recognize constant strings and decides that your particular code has no need of a second space consuming.. is such a ridiculous number is because of an implementation detail. @ ... is a constant string. NSString can recognize constant strings and decides that your particular code has no need of a second space consuming copy of a constant immutable string.. can recognize constant strings and decides that your particular code has no need of a second space consuming copy of a constant immutable string and thus returns the already existing constant string. I.e. a singleton. Of a class whose instances are..

What is objc_setAssociatedObject() and in what cases should it be used?

http://stackoverflow.com/questions/5909412/what-is-objc-setassociatedobject-and-in-what-cases-should-it-be-used

one object and another. The function takes four parameters the source object a key the value and an association policy constant. The key is a void pointer. The key for each association must be unique. A typical pattern is to use a static variable... of a declared property see 憕roperty Declaration Attributes . You specify the policy for the relationship using a constant see objc_AssociationPolicy and Associative Object Behaviors . Establishing an association between an array and a string..

How can I improve the performance of my custom OpenGL ES 2.0 depth texture generation?

http://stackoverflow.com/questions/6051237/how-can-i-improve-the-performance-of-my-custom-opengl-es-2-0-depth-texture-gener

shader is 8 cycles. The change in render time based on cycle count doesn't seem linear. Finally if I just output a constant color precision mediump float void main gl_FragColor vec4 0.5 0.5 0.5 1.0 the rendering time drops to 1.1 2.3 ms on iPad..