2014/10/15 下午 10:11:23

iphone Programming Glossary: method's

http://stackoverflow.com/questions/13156927/uitableview-delegate-methods

self tblService.dataSource self super viewWillAppear YES Basically iphone UITableView used below Delegate method's used NSInteger numberOfSectionsInTableView UITableView tableView return 1 count of section NSInteger tableView UITableView..

Pause code execution until UIAlertView button is pressed?

http://stackoverflow.com/questions/1375384/pause-code-execution-until-uialertview-button-is-pressed

while waiting for the user to answer the UIAlertView. My problem is how do I use alertView clickedButtonAtIndex in the method's return value Here's the code the message runs in this construction I was expecting navigateAwayFromTab to change based on..

iPhone: didSelectRowAtIndexPath not invoked

http://stackoverflow.com/questions/2305781/iphone-didselectrowatindexpath-not-invoked

. It's not reaching breakpoint set in my non empty method didSelectRowIndexPath. I checked the arguments and method's name to exclude typos resulting in different selector. I recently didn't succeed in whether delegate is set properly but..

what is NSParameterAssert?

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

can anyone explain with example iphone share improve this question It is a simple way to test that a method's parameter is not nil or not 0. So basically you use it to create a precondition stating that some parameter must be set...

Placing calls to super?

http://stackoverflow.com/questions/3466889/placing-calls-to-super

method is doing initialisation of instance variables which viewDidLoad usually wouldn't be doing as that's the init method's job in which case the super call should be at the start. The method is doing deallocation of instance variables in which..

If I override a class method, is there a way I can call the original method (the one that was overridden)?

http://stackoverflow.com/questions/3487828/if-i-override-a-class-method-is-there-a-way-i-can-call-the-original-method-the

class_getMethodImplementation and class_replaceMethod . Store the old IMP and call it directly. You need to get the method's type encoding. Note that you can just use a normal C function too... class_getInstanceMethod method_getImplementation method_setImplementation.. class_getInstanceMethod method_getImplementation method_setImplementation . As above but you don't need to get the method's type encoding. class_getInstanceMethod on both methods and then method_exchangeImplementations . Call MyCategory_method..

Subclassing NSOperation to be concurrent and cancellable

http://stackoverflow.com/questions/3859631/subclassing-nsoperation-to-be-concurrent-and-cancellable

What are the Dangers of Method Swizzling in Objective C?

http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c

Method swizzling is not atomic Changes behavior of un owned code Possible naming conflicts Swizzling changes the method's arguments The order of swizzles matters Difficult to understand looks recursive Difficult to debug These points are all.. store IMPPointer store return class_swizzleMethodAndStore self original replacement store @end Swizzling changes the method's arguments This is the big one in my mind. This is the reason that standard method swizzling should not be done. You are.. is the reason that standard method swizzling should not be done. You are changing the arguments passed to the original method's implementation. This is where it happens self my_setFrame frame What line does is objc_msgSend self @selector my_setFrame..