#import @implementation REAUtils + (void)swizzleMethod:(SEL)originalSelector forClass:(Class)originalClass with:(SEL)newSelector fromClass:(Class)newClass { Method originalMethod = class_getInstanceMethod(originalClass, originalSelector); Method newMethod = class_getInstanceMethod(newClass, newSelector); IMP originalImplementation = method_getImplementation(originalMethod); IMP newImplementation = method_getImplementation(newMethod); class_replaceMethod(originalClass, newSelector, originalImplementation, method_getTypeEncoding(originalMethod)); class_replaceMethod(originalClass, originalSelector, newImplementation, method_getTypeEncoding(newMethod)); } @end