ˇ@
2014/10/15 ¤U¤Č 10:09:56
iphone Programming Glossary: guaranteedIPHONE SDK Getting Device ID or Mac Address [duplicate] http://stackoverflow.com/questions/1110278/iphone-sdk-getting-device-id-or-mac-address
Get notified when UITableView has finished asking for data? http://stackoverflow.com/questions/1483581/get-notified-when-uitableview-has-finished-asking-for-data . One workaround I have found is to call reloadData in viewDidAppear since when reloadData returns the table view is guaranteed to have finished querying the data source as much as it needs to for the time being. However this seems rather nasty as..
How does -performSelector:withObject:afterDelay: work? http://stackoverflow.com/questions/1922517/how-does-performselectorwithobjectafterdelay-work @selector resetIsBad withObject nil afterDelay 0.1 return Do something with obj void resetIsBad isBad NO Is it guaranteed that resetIsBad will not be called until after methodCalledByButtonClick returns assuming we are running on the main thread.. the timer waits until the run loop is in the default mode. From this we can answer your second question. Yes it's guaranteed even with a shorter delay since the current thread is busy executing when performSelector is called. When the thread returns..
NSDictionary with ordered keys http://stackoverflow.com/questions/376090/nsdictionary-with-ordered-keys they always correspond. Currently I just use myDictionary allKeys but obviously this returns them in an arbitrary non guaranteed order. Is there a data structure in Objective C that I'm missing Does anyone have any suggestions on how to more elegantly..
NSDateFormatter dateFromString returns nil http://stackoverflow.com/questions/4258266/nsdateformatter-datefromstring-returns-nil
Most effective way to do networking on Mac/iPhone? http://stackoverflow.com/questions/4269613/most-effective-way-to-do-networking-on-mac-iphone is to stream device status e.g. accelerometer over the network over UDP while also maintaining signaling and delivery guaranteed event e.g. button pressed connection over TCP. A desktop application would display this status. However my current application..
Default UITableViewCellStyleSubtitle font size? http://stackoverflow.com/questions/4775107/default-uitableviewcellstylesubtitle-font-size share improve this question You can always set any font to those labels in code so if you want some guaranteed fixed values you'd better do that as size values may vary depending on many factors cell's style sdk version os version..
setKeepAliveTimeout and BackgroundTasks http://stackoverflow.com/questions/4777499/setkeepalivetimeout-and-backgroundtasks in the background. Doing any kind of HTTP GET request and waiting for some large data update to come back is almost guaranteed to get your app rejected. EDIT As noted by Patrick in the comments the current amount of time the block is given to execute..
Choose OpenGL ES 1.1 or OpenGL ES 2.0? http://stackoverflow.com/questions/4784137/choose-opengl-es-1-1-or-opengl-es-2-0 that don't support OpenGL ES 2.0 is dropping every day. All iPads have supported OpenGL ES 2.0 from launch so you're guaranteed to have support if you target that form factor. OpenGL ES 2.0 and 1.1 use different and fairly incompatible rendering pipelines...
viewdidunload is not getting called at all http://stackoverflow.com/questions/5594410/viewdidunload-is-not-getting-called-at-all share improve this question As others have mentioned viewDidUnload is a method of UIViewController. It isn't guaranteed to get called. It only gets called in low memory situations when the app releases the controller's view to free up memory...
What are the key concepts for an iPhone Developer to learn? [closed] http://stackoverflow.com/questions/5677655/what-are-the-key-concepts-for-an-iphone-developer-to-learn People often have trouble with understanding autorelease . Generally speaking local autoreleased objects are guaranteed to be around until the end of method call. No more no less. Of course if you retain the object elsewhere it will still have..
Am I abusing UIViewController Subclassing? http://stackoverflow.com/questions/5691226/am-i-abusing-uiviewcontroller-subclassing case UIViewControllers should only be directly to the Window or UINavigationController UITabBarController etc Are you guaranteed to get the UIVC Delegate methods called in that case How Does this differ from calling the delegate methods manually when..
Why am I having to manually set my view's frame in viewDidLoad? http://stackoverflow.com/questions/6757018/why-am-i-having-to-manually-set-my-views-frame-in-viewdidload but still not matching #3. iphone ipad uiview frame viewdidload share improve this question The frame is not guaranteed to be the same in viewDidLoad as it will be when the view is eventually displayed. UIKit adjusts the frame of your view..
How to protect app IPA from hacks if reverse engineering is possible http://stackoverflow.com/questions/6939222/how-to-protect-app-ipa-from-hacks-if-reverse-engineering-is-possible obfuscated beyond belief can't be peeled out of your product. Always design your apps such that safety of user data is guaranteed as far as possible even if built in ressources get compromised. If the knowledge of that URL alone poses a security threat..
Need an API that detects when an iPhone is plugged in http://stackoverflow.com/questions/7301680/need-an-api-that-detects-when-an-iphone-is-plugged-in be used on an IOUSBDeviceDescriptor to get properties including the vendor and product ID the combination of which is guaranteed to be unique by the USB Implementer's Forum. Using the vendor and product ID you can search for any specific USB device...
http://stackoverflow.com/questions/7989864/watching-memory-usage-in-ios and maybe the system would send the main thread a low memory warning but that seems pretty complicated and not even guaranteed to work. Thanks Ron iphone ios share improve this question While testing and debugging your app with XCode you can..
http://stackoverflow.com/questions/8172473/nstimer-reliable-alternatives update userInfo nil repeats YES iphone objective c ios nstimer share improve this question NSTimer is not guaranteed to fire exactly on time ever. But you can use an NSTimer in a much more reliable way than you are now. When you use scheduledTimerWithTimeInterval..
iOS 5: Curious about UIAppearance http://stackoverflow.com/questions/8257556/ios-5-curious-about-uiappearance supported for use with the appearance proxy. It will probably work but given the lack of method decoration isn't guaranteed to. From the UIAppearance Protocol Reference To support appearance customization a class must conform to the UIAppearanceContainer..
http://stackoverflow.com/questions/8723923/core-data-vs-sqlite-or-fmdb a simple Mac based command line app to migrate the DB to a Core Data DB is a finite and simple task. You are almost guaranteed to have to rewrite most of the business logic in Objective C. Yes C and Objective C are both good technologies. Has your..
|