Question

项目中的35个头文件之一（由其他开发人员交给我;所有这些文件都包含相同的委托声明）

@interface ActivityDetailsCN : UIViewController <NSXMLParserDelegate,     
AccountStatusDelegate, AccountTypeDelegate, DirectionDelegate, RecipientDelegate,
PriorityDelegate, DurationDelegate, CurrencyDelegate, OppTypeDelegate,
OppCategoryDelegate, DatePickerDelegate, SalutationDelegate, DepartmentDelegate, 
LeadTypeDelegate, OwnershipDelegate, MailingDelegate, SourceDelegate, 
StateDelegate, CommentsDelegate, CityDelegate, ZipCodeDelegate> 
{
    //Declaration of iVars goes here...
}

此处声明的所有委托包含相同的功能。甚至他们的定义也是如此。这些代理中的每一个都在各自的ViewController头文件之前声明，如下所示：

@protocol AccountStatusDelegate <NSObject>
  - (void)cancelTapped;
  - (void)doneTapped;
  - (void)selectTapped:(NSString *)string;
@end

@interface AccountStatusVC : UIViewController <NSXMLParserDelegate> {
}
@property (unsafe_unretained) id <AccountStatusDelegate> delegate;

cancelTapped的实现：

- (void)cancelTapped {
    [objPopOver dismissPopoverAnimated:YES];
}

cancelTapped的实现：

- (void)doneTapped {
    [tblView reloadData];
    [objPopOver dismissPopoverAnimated:YES];
}

cancelTapped的实现：

- (void)selectTapped:(NSString *)string
{
    if ([string isEqualToString:@"US"])
        isTextField = FALSE;
    else if([string isEqualToString:@"Other"]) {
        appDelegate.strCountry = @"";
        isTextField = TRUE;
    }
    [tblView reloadData];
    [objPopOver dismissPopoverAnimated:YES];
}

现在，来到这个问题：我不想在每一堂课中重复它（就像现在一样）;我想以更清洁的方式制作它，有没有可用的解决方案？

Answer 1

在公共超类中实现委托方法，并将所有协议重构为一个常见的TapCallbackDelegate协议

消除目标C中的委托重复代码

1 个答案: