2014/10/15 下午 10:14:18

iphone Programming Glossary: somewhat

Memory Management in Objective-C [duplicate]

http://stackoverflow.com/questions/106627/memory-management-in-objective-c

best explanations of memory management for iPhone I come from a C C background and the dynamic nature of ObjectiveC is somewhat foreign to me is there a good resource anyone can point me to for some basic memory management techniques in ObjectiveC..

Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?

http://stackoverflow.com/questions/1249634/wheres-the-difference-between-setobjectforkey-and-setvalueforkey-in-nsmutab

to exist. Its signature happens to be quite similar to setValue forKey but is more generic e.g. any key type . It's somewhat of a coincidence that the signatures are so similar. What adds to the confusion is that NSMutableDictionary's implementation..

What happens if I don't retain IBOutlet?

http://stackoverflow.com/questions/1250518/what-happens-if-i-dont-retain-iboutlet

you had not used the property you must remember to release it and optionally retain the new one. At this point it is somewhat ambiguous as to whom owns this new text field because the memory management semantics are not contained within the setter...

What's the difference between using CGFloat and float?

http://stackoverflow.com/questions/1264924/whats-the-difference-between-using-cgfloat-and-float

need is float precision within your own code you can still use float if you like 碍犲t will reduce your memory footprint somewhat. Same goes for integer values. I suggest you invest the modest time required to make your app 64 bit clean and try running..

What is the right choice between NSDecimal, NSDecimalNumber, CFNumber?

http://stackoverflow.com/questions/1704504/what-is-the-right-choice-between-nsdecimal-nsdecimalnumber-cfnumber

but there is two things that I would like to know Are the memory overhead and performance loss acceptable for a somewhat more complicated class only financial computations of this kind showed in an UITableView I do not have much background in.. since Objective C does not support operator overloading like C does. I agree that it makes your code somewhat less elegant. One comment on the code you posted r obj performSelector NSSelectorFromString @ capitalizedAmount is rather..

iPhone: Detecting user inactivity/idle time since last screen touch

http://stackoverflow.com/questions/273450/iphone-detecting-user-inactivity-idle-time-since-last-screen-touch

for a certain time period you take a certain action I'm trying to figure out the best way to do that. There's this somewhat related method in UIApplication UIApplication sharedApplication .idleTimerDisabled It'd be nice if you instead had something..

NSThread vs. NSOperationQueue vs. ??? on the iPhone

http://stackoverflow.com/questions/3041837/nsthread-vs-nsoperationqueue-vs-on-the-iphone

queuing the remaining operations. With NSThread creating 100 threads to cache 100 images is probably overkill and somewhat inefficient. You may want to cancel the cacheImage operation. Implementing cancellation is easier with NSOperationQueue..

iOS Keychain Security

http://stackoverflow.com/questions/3558252/ios-keychain-security

with no passcodes at all will still be vulnerable Devices with weak passcodes less than six digits will still be somewhat vulnerable 0ms per password try 0 tries per second .7 years for a 50 change of guessing the correct passcode for a 6 digit..

iPhone or Android? [closed]

http://stackoverflow.com/questions/381759/iphone-or-android

appstore NDA see above but also for architectural reasons Android makes it very easy to integrate with other apps on a somewhat finegrained level. Sharing application logic across applications is done by using intents http code.google.com android intro..

Want to display a 3D model on the iPhone: how to get started?

http://stackoverflow.com/questions/413919/want-to-display-a-3d-model-on-the-iphone-how-to-get-started

found an OpenGL book but I don't know how much if any applies to iPhone development. And I find the Objective C syntax somewhat confusing with the weird nested method naming things like id that don't make sense and the scary thought that I have to..

How to make a UITableViewCell with a UITextView inside, that dynamically adjust its height, on the basis of the UITextView?

http://stackoverflow.com/questions/4238760/how-to-make-a-uitableviewcell-with-a-uitextview-inside-that-dynamically-adjust

I am desperate Tony iphone uitableviewcell uitextview share improve this question Looking at this you need to be somewhat tricky. You need to calculate the height of the textView dynamically and based on the Height of the TextView you need to.. dynamically and based on the Height of the TextView you need to return the Height for the cell.. It's very easy somewhat Tricky.. This is the code by which you can calculate the size of string.... First get the size of String NSString label..

Am I abusing UIViewController Subclassing?

http://stackoverflow.com/questions/5691226/am-i-abusing-uiviewcontroller-subclassing

own containers can now show the views of multiple child view controllers. Writing a container view controller is a somewhat advanced topic you should be very familiar with the use of view controllers generally and the way the provided container..

Store orientation to an array - and compare

http://stackoverflow.com/questions/6368618/store-orientation-to-an-array-and-compare

thing is how can I compare the two arrays in a smart way They will never have exactly the same values but they can be somewhat the same. Am I at all on the right track here UPDATE I think that maybe Alis answer about using DTW could be the right way..

How does one compare one image to another to see if they are similar by a certain percentage, on the iPhone?

http://stackoverflow.com/questions/6488732/how-does-one-compare-one-image-to-another-to-see-if-they-are-similar-by-a-certai

for an idea of how to determine the color of a pixel at a given position in an image. You may want to optimize it somewhat to better suit your use case repeatedly querying the same image but it should provide a good starting point. Then you can..

Replace multiple characters in a string in Objective-C?

http://stackoverflow.com/questions/713918/replace-multiple-characters-in-a-string-in-objective-c

@ . withString @ Thanks matt iphone objective c string replacement share improve this question A somewhat inefficient way of doing this NSString s @ foo bar baz.foo NSCharacterSet doNotWant NSCharacterSet characterSetWithCharactersInString..

Most efficient way to draw part of an image in iOS

http://stackoverflow.com/questions/8035673/most-efficient-way-to-draw-part-of-an-image-in-ios

back end storage is located in memory near the CPU. Reading from GPU memory is usually very expensive slow. Maybe somewhat different on unified memory architecture but anyway initial design intention of CGImage seems to be for CPU. So it seems..

iPhone SDK on Windows (alternative solutions)

http://stackoverflow.com/questions/928656/iphone-sdk-on-windows-alternative-solutions

wrapper so you can build your application with HTML CSS JavaScript. It's a pretty portable solution too but you are somewhat limited in what you can make i.e no intensive rendering or anything. It really all depends on what you're looking to do...

Reading HTML content from a UIWebView

http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview

I'm not sure however if this will run Javascript found in the page you load the method name loadHTMLString is somewhat ambiguous and the docs don't say much about it . For more info UIWebView class reference NSString class reference NSURL..