ios에서 문자열과 요소의 배열을 비교하는 방법은 무엇입니까?

Question

- (void)viewDidLoad 
    { 
     [super viewDidLoad]; 

NSMutableArray *imageArray=[[NSMutableArray alloc]initWithObjects:@"pic1.png",@"pic2.png",@"pic3.png",@"pic4.png",nil]; 


NSMutableArray *username=[[NSMutableArray alloc]initWithObjects:@"A",@"B",@"C",@"D" ,nil]; 

     [self scrollViewAction]; 

    } 




    -(void)scrollViewAction 

    { 

     int x=5,y=0; 

     for(int i=0;i<[DetailsArray count];i++) 

     { 

      UIButton *btn=[[UIButton alloc]init]; 


[btn setFrame:CGRectMake(x, y, 90, 90)]; 

      UILabel *usernameLabel=[[UILabel alloc]init]; 

      [btn addTarget:self action:@selector(btnClicked) 

forControlEvents:UIControlEventTouchUpInside]; 

      btn.tag=i; 

      image=[UIImage imageWithData:[NSData dataWithContentsOfFile:@"imageArray"]]; 

      if(i==0||i==1||i==2) 


      { 


       usernameLabel=[[UILabel alloc]initWithFrame:CGRectMake(x,90,90,10)]; 


      } 

else 

      { 


       usernameLabel=[[UILabel alloc]initWithFrame:CGRectMake(x,y+90,90,10)]; 

      } 



      usernameLabel.text=username; 

    -------------------------------------------------------(here I am getting cant compare 

array with string) 

      usernameLabel.backgroundColor=[UIColor blueColor]; 

      usernameLabel.font=[UIFont systemFontOfSize:12]; 

      [usernameLabel setTextAlignment:UITextAlignmentCenter]; 

      [self.scrollview addSubview:btn]; 

      [self.scrollview addSubview:usernameLabel]; 

      x=x+110; 

      if((i+1)%3==0) 

      { 

       x=5; 


       y=y+110;//y=y+115; 




      } 



      self.scrollview.contentSize= CGSizeMake(320,y+200); 

     } 




    } 

Answer 1

usernameLabel.text=username; 

이름이 예상된다되지 않은 것을있는 NSMutableArray의 인스턴스 (있는 NSString의 인스턴스)입니다. 아마도 이런 식으로하고 싶습니까? 난 정말 당신이 뭘 하려는지 모르겠어요

usernameLabel.text=[username objectAtIndex:0]; 

Answer 2

for (NSString *name in username) { 
    if ([name isEqualToString(usernameLabel.text)]) 
//matched string found 
}