2014/10/15 下午 10:14:17

iphone Programming Glossary: somemethod

Is it better to autorelease or release right after?

http://stackoverflow.com/questions/1283324/is-it-better-to-autorelease-or-release-right-after

is if you're creating a lot of temporary objects in your method. For example consider the following method void someMethod NSUInteger i 0 while i 100000 id tempObject SomeClass alloc init autorelease Do something with tempObject i By the time..

Send and receive messages through NSNotificationCenter in Objective-C? [closed]

http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c

TestNotification NSLog @ Successfully received the test notification @end ... somewhere else in another class ... void someMethod All instances of TestClass will be notified NSNotificationCenter defaultCenter postNotificationName @ TestNotification object..

Difference between class property mVar and instance variable self.mVar

http://stackoverflow.com/questions/2278389/difference-between-class-property-mvar-and-instance-variable-self-mvar

your thinking the convention of mVarName is bad I took that from my C days. But what about the case when you do void someMethod int x x x You can't do that Say 'x' is also a class variable But you can do void someMethod int x mX x But your saying its.. the case when you do void someMethod int x x x You can't do that Say 'x' is also a class variable But you can do void someMethod int x mX x But your saying its better to do void someMethod int x self.x x iphone objective c oop self core foundation.. that Say 'x' is also a class variable But you can do void someMethod int x mX x But your saying its better to do void someMethod int x self.x x iphone objective c oop self core foundation share improve this question What's the difference between..

what is NSParameterAssert?

http://stackoverflow.com/questions/2521275/what-is-nsparameterassert

must be set. If it is not set the macro causes the application to abort and generates an error on that line. So void someMethod id someObjectThatMustNotBeNil Make sure that someObjectThatMustNotBeNil is really not nil NSParameterAssert someObjectThatMustNotBeNil..

How to call a method of another Class?

http://stackoverflow.com/questions/3235742/how-to-call-a-method-of-another-class

#import MyTableViewCell.h #import DetailedViewController.h @implementation MyTableViewCell @synthesize dvc void someMethod This would be your touchesBegan etc. methods dvc moveToNextItem void dealloc dvc release We retained dvc so we have to..

Check whether or not the current thread is the main thread

http://stackoverflow.com/questions/3546539/check-whether-or-not-the-current-thread-is-the-main-thread

to check whether or not the current thread is the main thread in Objective C I want to do something like this. void someMethod if IS_THIS_MAIN_THREAD NSLog @ ok. this is main thread. else NSLog @ don't call this method from other thread iphone objective..

Handling applicationDidBecomeActive

http://stackoverflow.com/questions/3639859/handling-applicationdidbecomeactive

notification gets sent to your application. NSNotificationCenter defaultCenter addObserver self selector @selector someMethod name UIApplicationDidBecomeActiveNotification object nil Don't forget to clean up after yourself In dealloc remember..

Blocks instead of performSelector:withObject:afterDelay: [duplicate]

http://stackoverflow.com/questions/4007023/blocks-instead-of-performselectorwithobjectafterdelay

10 answers I often want to execute some code a few microseconds in the future. Right now I solve it like this void someMethod some code And this self performSelector @selector someMethod withObject nil afterDelay 0.1 It works but I have to create.. in the future. Right now I solve it like this void someMethod some code And this self performSelector @selector someMethod withObject nil afterDelay 0.1 It works but I have to create a new method every time. Is it possible to use blocks instead..

How to use UIPanGestureRecognizer to move object? iPhone/iPad

http://stackoverflow.com/questions/6672677/how-to-use-uipangesturerecognizer-to-move-object-iphone-ipad

and I think that is what I am looking for. It helped me come up with the following solution IBAction someMethod UIPanGestureRecognizer panRecognizer UIPanGestureRecognizer alloc initWithTarget self action @selector move panRecognizer..

performSelector may cause a leak because its selector is unknown

http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown

a leak because its selector is unknown . Here's what I'm doing _controller performSelector NSSelectorFromString @ someMethod Why do I get this warning I understand the compiler can't check if the selector exists or not but why would that cause a.. this warning should simply be ignored and it's easy to work around. Here's how SEL selector NSSelectorFromString @ someMethod IMP imp _controller methodForSelector selector void func id SEL void imp func _controller selector Or more tersely though.. func id SEL void imp func _controller selector Or more tersely though hard to read SEL selector NSSelectorFromString @ someMethod void id SEL _controller methodForSelector selector _controller selector Explanation What's going on here is you're asking..

How to handle Objective-C protocols that contain properties?

http://stackoverflow.com/questions/844678/how-to-handle-objective-c-protocols-that-contain-properties

fashion such as the following @protocol MyProtocol NSObject @required @property readonly NSString title @optional void someMethod @end I've seen this format used instead of writing a concrete superclass that subclasses extend. The question is if you..