小编kat*_*ate的帖子

我正在将数据加载到MySQL的数组中,我想填充它们UITableCiew.如何添加多个列(在我的情况下为4)UITableView？

我能够加载行数据,但我不明白如何将其分成列.是UICollectionView一种选择吗？如果是的话,我该怎么办呢？

我在一个带有完成和取消按钮的uipopover中有一个完美的uipickerview.当用户多次打开uipickerview时,我能够保存最后选择的行并将其显示为默认值.问题是,当用户注销并登录时,我希望uipickerview重新开始,即,当我打开uipickerview并单击完成按钮(没有选择任何行)时,我希望它使用默认行即ie.row0但它在退出之前显示最后一个选定的行!! 我怎么解决这个？非常感谢.

NSString *selectedType = @"ALL";
int rowselected = 0;

- (void)viewDidLoad
{
    [super viewDidLoad];
    rowselected = 0;
    _typearray = [[NSArray alloc] initWithObjects:@"ALL", @"COACH", @"GROUP", @"PRIVATE", nil];
    NSInteger lastrow =[[[NSUserDefaults standardUserDefaults] objectForKey:@"gueststyperow"] integerValue];

    if(lastrow!=0)
        [self.picktype selectRow:lastrow inComponent:0 animated:NO];
    else
        [self.picktype selectRow:0 inComponent:0 animated:NO];
}

// DONE BUTTON PRESSED:

- (IBAction)doneButtonPress:(UIBarButtonItem *)sender {
    NSLog(@"%@",_delegate);
    NSNumber *temprow = [NSNumber numberWithInt:rowselected];
    [[NSUserDefaults standardUserDefaults] setValue:temprow forKey:@"gueststyperow"];
    [_delegate sendtype:selectedType];
}

// PICKERVIEW SELECTION

-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row
        inComponent:(NSInteger)component{
        rowselected = row;
        selectedType = [_typearray objectAtIndex:row];
}

虽然网站上有关于UITableview单元重复滚动的帖子有几个,但我找不到解决方案,也许是因为我对obj-c很新.

- (UITableViewCell *)tableView:(UITableView *)tableView  cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    NSString *cellIdentifier = [NSString stringWithFormat:@"cell%d",indexPath.row];

    UILabel *firstlabel   = nil;
    UILabel *secondlabel  = nil;
    UILabel *thirdlabel   = nil;

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

  if (noOfRows < [_eachrow count]-1) {

    _eachcolumn = [_eachrow[noOfRows] componentsSeparatedByString:@"|"];
    firstlabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0, 142.0,tableView.rowHeight)];
    firstlabel.font = [UIFont fontWithName:@"Verdana" size:12];
    firstlabel.text = _eachcolumn[0];
    firstlabel.textAlignment = ALIGN_LEFT;
    firstlabel.autoresizingMask = UIViewAutoresizingFlexibleRightMargin |
    UIViewAutoresizingFlexibleHeight;
    [cell.contentView addSubview:firstlabel];

    secondlabel =  [[UILabel alloc] initWithFrame:CGRectMake(142.0, 0, 50.0,tableView.rowHeight)]; …