【发布时间】:2023-04-09 04:54:02
【问题描述】:
我使用 Interface Builder 创建了一个自定义 TableView 单元格。这是它的样子:
对于描述标签,我需要它来自动换行,所以我这样设置:
在我的 SettingsPageViewController 中,我重写了以下表格视图方法:
@implementation SBSettingsViewController
{
NSArray *settingHeaders;
NSArray *settingDescriptions;
}
- (void)viewDidLoad {
[super viewDidLoad];
[self setupLeftMenuButton];
// Do any additional setup after loading the view from its nib.
settingHeaders = [NSArray arrayWithObjects:@"Label Header 1",@"Label Header 2",nil];
settingDescriptions = [NSArray arrayWithObjects:@"Two line description Two line description Two line description ",@"One Line Description",nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [settingHeaders count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *simpleTableIdentifier = @"SettingsTableCell";
SettingsTableViewCell *cell = (SettingsTableViewCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
{
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"SettingsTableCell" owner:self options:nil];
cell = [nib objectAtIndex:0];
}
cell.settingsHeaderLabel.text = [settingHeaders objectAtIndex:indexPath.row];
cell.settingsDescriptionLabel.text = [settingDescriptions objectAtIndex:indexPath.row];
cell.settingsDescriptionLabel.lineBreakMode = NSLineBreakByWordWrapping;
cell.settingsDescriptionLabel.numberOfLines = 0;
CGRect appFrame=[[UIScreen mainScreen] bounds];
cell.settingsDescriptionLabel.preferredMaxLayoutWidth = appFrame.size.width - 15;
[cell.settingsDescriptionLabel sizeToFit];
[cell.settingsDescriptionLabel setNeedsDisplay];
[cell layoutIfNeeded];
return cell;
}
-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath{
if ([tableView respondsToSelector:@selector(setSeparatorInset:)]) {
[tableView setSeparatorInset:UIEdgeInsetsZero];
}
if ([tableView respondsToSelector:@selector(setLayoutMargins:)]) {
[tableView setLayoutMargins:UIEdgeInsetsZero];
}
if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
[cell setLayoutMargins:UIEdgeInsetsZero];
}
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 85;
}
生成的页面如下所示:
如您所见,第一个 tableview 单元格的描述标签没有自动换行。它只是切断。 如何将其包裹起来?
另外,我希望动态调整 Tableview 单元格的高度。我试图将 heightForRowAtIndexPath: 更改为 UITableViewAutomaticDimension 但这只是让它看起来非常奇怪:
如何调整表格视图高度,以使 1 行描述标签略短的行?
感谢您的帮助!
【问题讨论】:
标签: ios objective-c uitableview interface-builder