我有两个tableView
部分,有时第一部分没有任何数据,所以第二部分现在是第一部分。
在我的numberOfSectionsInTableView
方法中,我正在计算我的第一个数组:
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
if (appDelegate.firstArray.count == 0) {
numberOfSections = 1;
} else {
numberOfSections = 2;
}
return self.numberOfSections;
numberOfSections
将 int 添加到我的头文件中。
以下是我为单元格配置文本的方法
switch (indexPath.section) {
case 0:
{
MyClass *inFirstArray = [appDelegate.firstArray objectAtIndex:indexPath.row];
cell.detailTextLabel.text = inFirstArray.title;
break;
}
case 1:
{
Event *inSecondArray = [appDelegate.secondArray objectAtIndex:indexPath.row];
cell.detailTextLabel.text = inSecondArray.title;
break;
default:
break;
}
}
问题是如果我的firstArray计数等于0,我的secondArray中没有任何文本......
更新
也有这个方法
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
//I'm realeasing it into dealloc
sectionTitles = [[NSMutableArray alloc] init];
[sectionTitles addObject:@"first ArrayTitle"];
[sectionTitles addObject:@"second ArrayTitle"];
NSString *sectionText = [sectionTitles objectAtIndex:section];
return sectionText;
}
和
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
//Adding a custom background image for table section header
NSString *title = [times objectAtIndex:section];
UIView *customView = [ [ [UIView alloc] initWithFrame: CGRectMake(0.0, -5.0, 320.0, 25.0) ] autorelease ];
[customView setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"tableBackground.png"]]];
UIButton *button = [ [ [ UIButton alloc ] initWithFrame: CGRectMake(-9.0, 5.0, 320, 27.0) ] autorelease ];
button.tag = section;
[button setImage:[UIImage imageNamed:@"header_section_background.png" ] forState: UIControlStateNormal ];
button.highlighted = NO;
button.adjustsImageWhenHighlighted = NO;
UILabel *label = [ [ UILabel alloc ] initWithFrame:CGRectMake(15.0, 5.0, 45, 22.0) ];
label.alpha = 1.0;
label.backgroundColor = [UIColor clearColor];
label.text = title;
label.textAlignment = UITextAlignmentRight;
[customView addSubview: button ];
[customView addSubview:label ];
[customView sendSubviewToBack:button];
return customView;
}
答案 0 :(得分:1)
始终为numberOfSections
返回2。对于numberOfRowsInSection
,请执行以下操作:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
if (section == 0)
return [appDelegate.firstArray count];
else
return [appDelegate.secondArray count];
}
因此,您的两个部分将始终存在,但如果没有数据,则它们将为零行。