<pre>
@interface NSObject (QMUI)
/**
对 super 发送消息
@param aSelector 要发送的消息
@return 消息执行后的结果
@link http://stackoverflow.com/questions/14635024/using-objc-msgsendsuper-to-invoke-a-class-method
*/
- (id)performSelectorToSuperclass:(SEL)aSelector;
/**
对 super 发送消息
@param aSelector 要发送的消息
@param object 作为参数传过去
@return 消息执行后的结果
@link http://stackoverflow.com/questions/14635024/using-objc-msgsendsuper-to-invoke-a-class-method
*/
- (id)performSelectorToSuperclass:(SEL)aSelector withObject:(id)object;
/**
遍历某个 protocol 里的所有方法
@param protocol 要遍历的 protocol，例如 @protocol(xxx)
@param block 遍历过程中调用的 block
*/
- (void)enumerateProtocolMethods:(Protocol *)protocol usingBlock:(void (^)(SEL selector))block;
@end
</pre>
<pre>
@implementation NSObject (QMUI)
-
(id)performSelectorToSuperclass:(SEL)aSelector {
struct objc_super mySuper;
mySuper.receiver = self;
mySuper.super_class = class_getSuperclass(object_getClass(self));id (*objc_superAllocTyped)(struct objc_super *, SEL) = (void )&objc_msgSendSuper;
return (objc_superAllocTyped)(&mySuper, aSelector);
} -
(id)performSelectorToSuperclass:(SEL)aSelector withObject:(id)object {
struct objc_super mySuper;
mySuper.receiver = self;
mySuper.super_class = class_getSuperclass(object_getClass(self));id (*objc_superAllocTyped)(struct objc_super *, SEL, ...) = (void )&objc_msgSendSuper;
return (objc_superAllocTyped)(&mySuper, aSelector, object);
}
- (void)enumerateProtocolMethods:(Protocol *)protocol usingBlock:(void (^)(SEL))block {
unsigned int methodCount = 0;
struct objc_method_description *methods = protocol_copyMethodDescriptionList(protocol, NO, YES, &methodCount);
for (int i = 0; i < methodCount; i++) {
struct objc_method_description methodDescription = methods[i];
if (block) {
block(methodDescription.name);
}
}
free(methods);
}
@end
</pre>
