在其他类别中达到功能 [英] Reaching a function in a different class

问题描述

我正在尝试使我的应用程序更具动态性.我试图在一个类中声明一个函数，该类应该被我拥有的其他一些类实例化并使用.

I'm trying to get my app a little more dynamic. I'm trying to declare a function in a class that is supposed to get instantiated and used by a few other classes i have.

此刻我正在这样做.

// FunkBib.h

#import <Foundation/Foundation.h>


@interface FunkBib : NSObject {        
}
-(NSString *)formateraTillEEEEdMMMM:(id)suprDatum;
@end

// FunkBib.m

-(NSString *)formateraTillEEEEdMMMM:(id) suprDatum{        

    NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
    dateFormatter.dateFormat = @"yyyyMMdd";        

    NSDate *date = [dateFormatter dateFromString:suprDatum];        

    NSLocale *swedishLocale=[[[NSLocale alloc] initWithLocaleIdentifier:@"sv_SE"] autorelease];
    dateFormatter.locale=swedishLocale;        

    dateFormatter.dateFormat=@"EEEE d MMMM";
    NSString * weekdayString= [dateFormatter stringFromDate:date];

    NSString *newWeekDayString = [weekdayString stringByReplacingCharactersInRange:NSMakeRange(0,1) withString:[[weekdayString substringToIndex:1] capitalizedString]];

    return newWeekDayString;        
}

与此同时，在其他班级我也这样做.

Meanwhile in my other classes i do this.

//someclass.h

#import <UIKit/UIKit.h>    

@class FunkBib;

@interface someclass : UIViewController {    

FunkBib *funkBib;

}
@property(nonatomic,retain)     FunkBib                         *funkBib;    
@end

// someclass.m

#import "FunkBib.h"    
@implementation someclass.m    
@synthesize funkBib;

在以后的代码中，我想像这样使用此功能.

And at a later point in the code i'd like to use this function like this.

somelabel.text = [funkBib formateraTillEEEEdMMMM:[someArray objectAtIndex:somewhere]];

我不知道为什么这不起作用.任何人都对我如何解决这个问题有一般的指点?

I have no direct idea why this is not working. Anyone have any general pointers about how i might solve this?

BTW:该代码未复制粘贴，因此可能存在语法错误.

BTW: The code is not copy-pasted, so there may be syntax errors.

推荐答案

为FunBib创建实例

create instance for FunBib

-(void)viewDidLoad {[super viewDidLoad];self.funkBib = [[[FunkBib alloc] init];
somelabel.text = [self.funkBib formateraTillEEEEdMMMM:[someArray objectAtIndex:somewhere]]；}

-(void)viewDidLoad{ [super viewDidLoad]; self.funkBib=[[FunkBib alloc] init];
somelabel.text = [self.funkBib formateraTillEEEEdMMMM:[someArray objectAtIndex:somewhere]]; }

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