如何创建和使用协议（如果有一个以上的类可以实现） [英] How to create and use Protocol , if more then one class implements

问题描述

我想在我的项目中创建一个 Protocol 。为了使某些参数符合我要使用的三个类，因此我希望这些类符合协议。

I Want to create A Protocol in my project For conform some parameters I have three classes to use so I want the classes to conform the protocol.

所以请帮助我。

预先感谢

推荐答案

我只是给出有关如何创建协议

I just Give Basic Idea for how to Create Protocol

也请阅读此问题

#DetailViewController.h

#import <UIKit/UIKit.h>

@protocol MasterDelegate <NSObject>
-(void) getButtonTitile:(NSString *)btnTitle;
@end


@interface DetailViewController : MasterViewController

@property (nonatomic, assign) id<MasterDelegate> customDelegate; 

#DetailViewController.m

if([self.customDelegate respondsToSelector:@selector(getButtonTitile:)])
{
          [self.customDelegate getButtonTitile:button.currentTitle];    
}

#MasterViewController.m

create obj of DetailViewController

DetailViewController *obj = [[DetailViewController alloc] init];
obj.customDelegate = self;
[self.navigationController pushViewController:reportTypeVC animated:YES];

and add delegate method in MasterViewController.m for get button title.

#pragma mark -
#pragma mark - Custom Delegate  Method

-(void) getButtonTitile:(NSString *)btnTitle;
{
    NSLog(@"%@", btnTitle);

}

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