UITableView 셀은 다른 셀의 내용을 가져옵니다.

Question

내 UITableView 셀은 다른 셀의 내용 (이미지)을 가져옵니다. 왜 그런 일이 일어날 지 모르지만 내 실수는 어리 석다. 아래 이미지에서 보이는 모양을 볼 수 있습니다. 상단의 셀은 하단의 셀에서 이미지를 가져옵니다 (facebook 및 twitter 아이콘).

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; 
    } 

    NSDictionary *dictionary = [mainArray objectAtIndex:indexPath.section]; 
    NSArray *array1 = [dictionary objectForKey:@"stuff"]; 

    NSString *cellValue = [array1 objectAtIndex:indexPath.row]; 
    cell.textLabel.text = cellValue; // загаловок клетки 
    cell.textLabel.font = [UIFont fontWithName:@"TrebuchetMS-Bold" size:16]; 
    cell.textLabel.textColor = [UIColor colorWithRed:145/256.0 green:0/256.0 blue:0/256.0 alpha:1.0];  
    cell.backgroundColor = [UIColor whiteColor]; 
    cell.selectionStyle = UITableViewCellSelectionStyleGray; 
    cell.textLabel.textAlignment = UITextAlignmentLeft; 

    if (indexPath.section == 0 && indexPath.row == 1) 
    { 
     if([[NSUserDefaults standardUserDefaults]boolForKey:@"password"] == YES) 
     { 
      cell.selectionStyle = UITableViewCellSelectionStyleNone; 
     } 
    } 

    switch(indexPath.section) 
    { 

     case 2: 
     { 
      cell.textLabel.textAlignment = UITextAlignmentCenter; 
     } 
     break; 

     case 3: 
     { 
      if (indexPath.row == 0) 
       cell.imageView.image = [UIImage imageNamed:@"facebook"]; 
      else if (indexPath.row == 1) 
       cell.imageView.image = [UIImage imageNamed:@"twitter"]; 
      else if (indexPath.row == 2) 
       cell.imageView.image = [UIImage imageNamed:@"youtube"]; 
      else 
       cell.imageView.image = [UIImage imageNamed:@"vk"]; 
     } 
     break; 
      default: 
      break; 
    } 




    return cell; 
} 

내가 그것을 어떻게 해결할 수 있습니다 : 여기

는 cellForRowAtIndexPath 내 코드?

Answer 1

셀은 재사용되므로 이미지를 표시하지 않으려면 셀의 imageView를 nil로 설정해야합니다. 이것을 시도하십시오 :

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; 
    } 

    NSDictionary *dictionary = [mainArray objectAtIndex:indexPath.section]; 
    NSArray *array1 = [dictionary objectForKey:@"stuff"]; 

    NSString *cellValue = [array1 objectAtIndex:indexPath.row]; 
    cell.textLabel.text = cellValue; // загаловок клетки 
    cell.textLabel.font = [UIFont fontWithName:@"TrebuchetMS-Bold" size:16]; 
    cell.textLabel.textColor = [UIColor colorWithRed:145/256.0 green:0/256.0 blue:0/256.0 alpha:1.0];  
    cell.backgroundColor = [UIColor whiteColor]; 
    cell.selectionStyle = UITableViewCellSelectionStyleGray; 
    cell.textLabel.textAlignment = UITextAlignmentLeft; 
    cell.imageView.image = nil; 

    if (indexPath.section == 0 && indexPath.row == 1) 
    { 
     if([[NSUserDefaults standardUserDefaults]boolForKey:@"password"] == YES) 
     { 
      cell.selectionStyle = UITableViewCellSelectionStyleNone; 
     } 
    } 

    switch(indexPath.section) 
    { 

     case 2: 
     { 
      cell.textLabel.textAlignment = UITextAlignmentCenter; 
     } 
     break; 

     case 3: 
     { 
      if (indexPath.row == 0) 
       cell.imageView.image = [UIImage imageNamed:@"facebook"]; 
      else if (indexPath.row == 1) 
       cell.imageView.image = [UIImage imageNamed:@"twitter"]; 
      else if (indexPath.row == 2) 
       cell.imageView.image = [UIImage imageNamed:@"youtube"]; 
      else 
       cell.imageView.image = [UIImage imageNamed:@"vk"]; 
     } 
     break; 
     default: 
     break; 
    } 




    return cell; 
}