自己写的method_exchangeImplementations总是循环引用怎么办，无法调用系统原来的方法

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原因是自己没有在要hook的方法的分类里写的而是在另一个类里写的。

        Method originalMethod = class_getInstanceMethod([NSClassFromString(@"GXDirectAccessPushClient") class], @selector(notifyAuthenticateSuccess:error:));



        Method swizzledMethod = class_getInstanceMethod([Globals class], @selector(notifyAuthenticateSuccess:error:));



        method_exchangeImplementations(originalMethod, swizzledMethod);

这样写可以hook到方法但是无法调用系统原来的方法

应该在分类里写 

#import <Foundation/Foundation.h>
#import "GXDirectAccessPushClient.h"
@interface GXDirectAccessPushClient (swizz)

@end




#import "GXDirectAccessPushClient+swizz.h"

@implementation GXDirectAccessPushClient(swizz)
- (void)MynotifyAuthenticateSuccess:(_Bool)arg1 error:(id)arg2;
{
    [self MynotifyAuthenticateSuccess:arg1 error:arg2];
}
@end

替换

+ (void)load{
    {

        Method originalMethod = class_getInstanceMethod([NSClassFromString(@"GXDirectAccessPushClient") class], @selector(notifyAuthenticateSuccess:error:));

        Method swizzledMethod = class_getInstanceMethod([NSClassFromString(@"GXDirectAccessPushClient") class], @selector(MynotifyAuthenticateSuccess:error:));

        method_exchangeImplementations(originalMethod, swizzledMethod);

}