2014/10/15 下午 10:05:06

iphone Programming Glossary: class_getinstancemethod

http://stackoverflow.com/questions/1637604/method-swizzle-on-iphone-device

that page #import objc runtime.h #import objc message.h .... void Swizzle Class c SEL orig SEL new Method origMethod class_getInstanceMethod c orig Method newMethod class_getInstanceMethod c new if class_addMethod c orig method_getImplementation newMethod method_getTypeEncoding.. message.h .... void Swizzle Class c SEL orig SEL new Method origMethod class_getInstanceMethod c orig Method newMethod class_getInstanceMethod c new if class_addMethod c orig method_getImplementation newMethod method_getTypeEncoding newMethod class_replaceMethod..

objc_setAssociatedObject unavailable in iPhone simulator

http://stackoverflow.com/questions/1916130/objc-setassociatedobject-unavailable-in-iphone-simulator

theDictionaries nil static void Swizzle Class c SEL orig SEL new swizzling by Mike Ash Method origMethod class_getInstanceMethod c orig Method newMethod class_getInstanceMethod c new if class_addMethod c orig method_getImplementation newMethod method_getTypeEncoding.. Class c SEL orig SEL new swizzling by Mike Ash Method origMethod class_getInstanceMethod c orig Method newMethod class_getInstanceMethod c new if class_addMethod c orig method_getImplementation newMethod method_getTypeEncoding newMethod class_replaceMethod..

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

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 . As above but you don't need to get the method's type encoding. 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 to get the original implementation. This..

Show UITabBar when UIViewController pushed

http://stackoverflow.com/questions/5072382/show-uitabbar-when-uiviewcontroller-pushed

forKey key @end And in the viewDidAppear method of the tab bar controller insert the following codes. Method original class_getInstanceMethod UITabBar class @selector actionForLayer forKey Method custom class_getInstanceMethod UITabBar class @selector customActionForLayer.. following codes. Method original class_getInstanceMethod UITabBar class @selector actionForLayer forKey Method custom class_getInstanceMethod UITabBar class @selector customActionForLayer forKey class_replaceMethod UITabBar class @selector actionForLayer forKey..

how to get selected text from uitextfield in iphone?

http://stackoverflow.com/questions/5230297/how-to-get-selected-text-from-uitextfield-in-iphone

mySelectionDidChange class_addMethod inputDelegateClass mySelector IMP mySelectionDidChange v@ @ Method myMethod class_getInstanceMethod inputDelegateClass mySelector Method uiKitMethod class_getInstanceMethod inputDelegateClass @selector selectionDidChange.. IMP mySelectionDidChange v@ @ Method myMethod class_getInstanceMethod inputDelegateClass mySelector Method uiKitMethod class_getInstanceMethod inputDelegateClass @selector selectionDidChange method_exchangeImplementations uiKitMethod myMethod swizzled swizzle NSLog..

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

BOOL class_swizzleMethodAndStore Class class SEL original IMP replacement IMPPointer store IMP imp NULL Method method class_getInstanceMethod class original if method const char type method_getTypeEncoding method imp class_replaceMethod class original replacement..