2014/10/15 下午 10:14:14

iphone Programming Glossary: situations

What happens if I don't retain IBOutlet?

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

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 desktop. On the desktop..

Declaration/definition of variables locations in ObjectiveC?

http://stackoverflow.com/questions/12632285/declaration-definition-of-variables-locations-in-objectivec

the new ObjectiveC directives that add OO on top of that. Could you folks helps me understand the best practice and situations where I'd want to use these locations for my variables and perhaps correct my present understanding Here's a sample class..

Where to place the “Core Data Stack” in a Cocoa/Cocoa Touch application

http://stackoverflow.com/questions/1267520/where-to-place-the-core-data-stack-in-a-cocoa-cocoa-touch-application

a model controller. It also gives you the ability to access other parts of the stack if needs be. Moreover in some situations as described in the documentation you might want to use a different context to perform a discrete set of actions. The appropriate..

Delegates Vs. Notifications in iPhoneOS

http://stackoverflow.com/questions/2232694/delegates-vs-notifications-in-iphoneos

iphone delegates notifications share improve this question Delegating is a good programming practice for many situations but that doesn't mean you have to use it if you're not comfortable with it. Both delegating and notifications help decouple..

Data Formatters temporarily unavailable

http://stackoverflow.com/questions/2573477/data-formatters-temporarily-unavailable

do with NSDateFormatter the message pasted in saying Data Formatters is correct. You will get this message in several situations possibly most commonly when unable to find a linked in shared library at launch time. You may also get it when short of..

iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?

http://stackoverflow.com/questions/2593139/ipad-web-app-detect-virtual-keyboard-using-javascript-in-safari

Localization of icon and default screen in iPhone

http://stackoverflow.com/questions/2700311/localization-of-icon-and-default-screen-in-iphone

Hide UIToolbar UIBarButtonItems

http://stackoverflow.com/questions/2971483/hide-uitoolbar-uibarbuttonitems

UIBarButtonItems I have a UIToolbar that I set up using IB with three buttons left middle and right. In some situations I would like to not display the middle button. Does anybody know of a way to hide a specific button on inside a UIToolBar.. but this still leaves the button causing users to wonder what its purpose is. I would like to only display it in situations that it actually has a use. Thanks in advance iphone objective c hide uibarbuttonitem uitoolbar share improve this question..

Getting displacement from accelerometer data with Core Motion

http://stackoverflow.com/questions/4449565/getting-displacement-from-accelerometer-data-with-core-motion

is to introduce something I call synthectic forces or virtual forces . This is some strategy to react on several bad situations triggering the object to drift away although the device remains fixed no native speaker I mean without moving in your hands...

iPhone Development - Simulate Memory Warning

http://stackoverflow.com/questions/491075/iphone-development-simulate-memory-warning

in an instance variable. Since the _data variable is created on demand it's safe for us to unloaded it in low memory situations it'll just get created again next time we need it. void didReceiveMemoryWarning super didReceiveMemoryWarning _data release..

Return to app behavior after phone call different in native code than UIWebView

http://stackoverflow.com/questions/5317783/return-to-app-behavior-after-phone-call-different-in-native-code-than-uiwebview

from a native application URL string Would there be any downside to implementing a UIWebView instead of a UILabel in situations where I really wanted the user to be redirected back to my application after completing a phone call iphone objective c..

Am I abusing UIViewController Subclassing?

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

2011 03 09 abusing uiviewcontrollers UIViewController subclassing should only happen in very specific situations. Most notably when added directly to the UIWindow or other Apple created custom controllers like UINavigationControllers...

How to read objective-c stack traces

http://stackoverflow.com/questions/6462214/how-to-read-objective-c-stack-traces

a signal trampoline. The app received a signal and the a trampoline was set to call TFSignalHandler . There are situations where a signal handler might be called on a random thread. I.e. there is a minuscule chance that this particular crash had..

Moving a Stick figure, anchorpoints, animation, or something else…?

http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else

debug drawing. The question remains When would you want to modify the anchor point I've done so only in the following situations and avoid it in all other scenarios to align non animated textures with the screen window borders or similar to right left..

applicationWillTerminate when is it called and when not

http://stackoverflow.com/questions/7818045/applicationwillterminate-when-is-it-called-and-when-not

application because the application simply moves to the background in that case. However this method may be called in situations where the application is running in the background not suspended and the system needs to terminate it for some reason Emphasis..

Availability.h, UIKit.h, etc not found

http://stackoverflow.com/questions/9380186/availability-h-uikit-h-etc-not-found

this can sometimes fix this damn problem. Why does it happen ... I believe this problem can possibly happen in situations where you have say replaced your hard drive i.e. probably using Carbon Copy Cloner or the like or in some way the main volume..

Internal clock in iPhone background mode

http://stackoverflow.com/questions/9564823/internal-clock-in-iphone-background-mode

the server time to use in the application because using device time may sometimes cause issues. The issues may be in situations like somebody has changed the user's iPhone time etc. So i am following the below method. Running an internal clock in my..

How do I start playing audio when in silent mode & locked in iOS 6?

http://stackoverflow.com/questions/9725192/how-do-i-start-playing-audio-when-in-silent-mode-locked-in-ios-6

' with an infinite loop to keep app running indefinitely. Pros Looks like you can make this work in a lot of situations even when the user presses home. Cons This goes against apple policies as far as I can tell. will use more resources Comments.. audio loop to pose as a continus audio playing media center Pros Worked when locked and will keep up running in most situations. Cons Can fail if interrupted by another media center and in some other occasions. Can also go agains apple policy. Comments.. another media center and in some other occasions. Can also go agains apple policy. Comments This can work I a lot of situations but is by far not ideal. And since Like I say again there has to be another method that is not documented. Conclussions..