2014/10/15 下午 10:08:12

iphone Programming Glossary: encounter

why is textFieldDidEndEditing: not being called?

http://stackoverflow.com/questions/1228298/why-is-textfielddidendediting-not-being-called

ran into the same problem you described. After trying everything I could think of I added this delegate method if we encounter a newline character return BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString..

What happens if I don't retain IBOutlet?

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

didn't want to leave out any details in the scenario. Simply following the guidelines will help avoid problems as you encounter more complex situations. It is additionally worth noting that the memory management behavior differs on Mac OS X on the..

Tracing the exact location of the longpressgesture with CGPoint

http://stackoverflow.com/questions/12963004/tracing-the-exact-location-of-the-longpressgesture-with-cgpoint

Xcode 3.2.1 GCC CLANG and LLVM demystification

http://stackoverflow.com/questions/1551099/xcode-3-2-1-gcc-clang-and-llvm-demystification

although GCC 4.2 is still the system default. The Clang LLVM 1.0 compiler will fall back to using LLVM GCC 4.2 when it encounters C code. Our company has existing projects that are pure C Objective C and Objective C for desktop and iphone. Can someone.. back ends. You'll get more readable errors and warnings from your compiler and shorter compile times. You might also encounter incompatibilities or bugs clang is a very young project. LLVM GCC GCC's front end with LLVM's back end. LLVM's back end.. back end is faster than GCC's. clang's Objective C support is far from being complete so it calls llvm gcc when it encounters a C source file. It also contains the static analyzer that is now integrated into Xcode. Some people say LLVM's back end..

Reading binary image data from a web service into UIImage

http://stackoverflow.com/questions/2360986/reading-binary-image-data-from-a-web-service-into-uiimage

NSString pointing to the string within each field. Since this is a string this is what I do to read image data when i encounter the image field UIImage img UIImage alloc initWithData string dataUsingEncoding NSUTF8StringEncoding But img variable is..

Apple Singleton example query?

http://stackoverflow.com/questions/2410830/apple-singleton-example-query

importantly the code does what it says it does. A caller who thinks he's making a unique instance with alloc doesn't encounter surprising spooky action at a distance behavior that requires him to know an internal implementation detail of the object... singleton because the object in question maps to a unique resource that cannot be shared and it's really rare to encounter such a situation then you still shouldn't use alloc trickery to enforce it. This just masks a programming error of trying..

Adding view on StatusBar in iPhone

http://stackoverflow.com/questions/2833724/adding-view-on-statusbar-in-iphone

or similar. If you make your main window the UIWindow in your Application Delegate loose key status you will encounter problems with scrolling scrollviews to top when tapping the status bar etc. Edit Here's an image you can use as a background..

Are Apps using iAd compatible with older iOS

http://stackoverflow.com/questions/3128457/are-apps-using-iad-compatible-with-older-ios

iphone objective c xcode version iad share improve this question If you weak link the iAd framework you will encounter no issues with a controller class that conforms to the ADBannerViewDelegate protocol. You will of course need to add the..

Using an NSFetchedResultsController without a UITableViewController

http://stackoverflow.com/questions/3277415/using-an-nsfetchedresultscontroller-without-a-uitableviewcontroller

So I first researched whether using the NSFetchedResultsController without a UITableViewController was advisable and encounter this Stackoverflow post where it is concluded that at least in some circumstances it's not a bad idea. But now I've encountered.. this Stackoverflow post where it is concluded that at least in some circumstances it's not a bad idea. But now I've encountered an issue where the NSFetchedResultsController behaves differently when a corresponding UITableViewController isn't present... post . Note this is a simplification of the issue in some circumstances the objects do have IndexPaths but I've encountered enough problems to believe that expecting IndexPaths without a UITableViewController is a bad idea. Without IndexPaths..

Error from Debugger: Previous frame inner to this frame (gdb could not unwind past this frame)

http://stackoverflow.com/questions/3285493/error-from-debugger-previous-frame-inner-to-this-frame-gdb-could-not-unwind-pa

frame inner to this frame gdb could not unwind past this frame I am getting the following debugger error when I encounter a breakpoint on the device Error from Debugger Previous frame inner to this frame gdb could not unwind past this frame This.. this message mean and more importantly how can I fix it I have been debugging this app for a long time without ever encountering this error. I tried a clean build as well as rebooting my Mac. I am on XCode 3.2.3 iOS 4.0.1. iphone debugging breakpoints..

iPhone App Development Tutorials (beginner) [closed]

http://stackoverflow.com/questions/4765451/iphone-app-development-tutorials-beginner

qid 1295658322 sr 8 1 Gotchas No special ones. Of course there are gotchas everywhere but worry about those when you encounter them. Advantages I'd say definitely the tools Xcode and Interface Builder and a non fractured market only one App Store..

Is there any way of asking an iOS view which of its children has first responder status? [duplicate]

http://stackoverflow.com/questions/5029267/is-there-any-way-of-asking-an-ios-view-which-of-its-children-has-first-responder

one of them. You would need to iterate over all of the child controls and test the isFirstResponder property. When you encounter TRUE break out of the loop. UIView firstResponder for UIView view in self.view.subviews caused error if view.isFirstResponder..

Why Isn't Core Data Fetching My Data?

http://stackoverflow.com/questions/5467193/why-isnt-core-data-fetching-my-data

path. Often a file URL is pointing into the application's resources directory instead of a writeable directory. If you encounter schema incompatibility errors during development you can reduce their frequency by Simply deleting the existing store NSFileManager..

Avoid UIWebView load iTunes App

http://stackoverflow.com/questions/6150088/avoid-uiwebview-load-itunes-app

You could use that to catch and edit whichever bits of .js and .html you like but then you're pretty much bound to encounter problems whenever Apple adjust their page. Similarly you could use webview's stringByEvaluatingJavaScriptFromString to execute..

How to properly crop an image taken on iPhone 4G (with EXIF rotation data)?

http://stackoverflow.com/questions/7203847/how-to-properly-crop-an-image-taken-on-iphone-4g-with-exif-rotation-data

from the original image. Unfortunately that call isn't available on iOS 3.XX fortunately it is unlikely that you will encounter images with EXIF information on those devices because the camera's can't take photos with rotation information. share improve..

Local Notification doesn't work on iOS5

http://stackoverflow.com/questions/7966856/local-notification-doesnt-work-on-ios5

notification center which allows the app to display the notification my app's local notification doesn't fire. Do you encounter the same problem more information The same app compiled from the same source code a few days ago which compiled with XCode..

Detect if the user has touched the screen

http://stackoverflow.com/questions/9251174/detect-if-the-user-has-touched-the-screen