XCODE傳遞一個方法作爲參數

Question

我wan't傳遞一個方法作爲參數傳遞給另一種方法，因此它知道端部運行時調用的方法。可能嗎？

[self bringJSON:(NSString *)_passedValua:(NSObject *)anotherMethod]; 

Answer 1

由於@丹尼爾在評論中提到，您可以使用selector。基本方案如下：

// Method declaration - method accept selector as parameter 
- (void) bringJSON:(NSString *)_passedValua toMethod:(SEL)anotherMethod]; 

// Method call - create selector from method name (mind the colon in selector - it is required if your method takes 1 parameter) 
[self bringJSON:jsonString toMethod:@selector(methodName:)]; 

// Implementation 
- (void) bringJSON:(NSString *)_passedValua toMethod:(SEL)anotherMethod]{ 
    ... 
    if ([target respondsToSelector:anotherMethod]) 
     [target performSelector:anotherMethod withObject:_passedValua]; 
}