创建 UISwitch 控件并将其添加到单元格内容视图。
- (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] autorelease];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.accessoryType = (UITableViewCellAccessoryNone;
UISwitch* aSwitch = [[UISwitch alloc] initWithFrame:CGRectZero];
aSwitch.tag = [indexPath row];
CGRect rect = cell.frame;
CGRect switchRect = aSwitch.frame;
switchRect.origin = CGPointMake( (rect.size.width / 2) - (aSwitch.frame.size.width / 2),
(rect.size.height / 2) - (aSwitch.frame.size.height / 2));
aSwitch.frame = switchRect;
[aSwitch addTarget:self action:@selector(switchSwitched) forControlEvents:UIControlEventValueChanged];
[cell addSubview:aSwitch];
[aSwitch release];
}
return cell;
}
- (void)switchSwitched:(UISwitch*)sender {
if (sender.on) {
UITableViewCell* aCell = [self.tableView cellForRowAtIndexPath:
[NSIndexPath indexPathForRow:sender.tag inSection:0]];
aCell.accessoryType = (sender.on == YES ) ? UITableViewCellAccessoryDisclosureIndicator : UITableViewCellAccessoryNone;
}
}
您还可以通过子类化 UITableViewCell 并添加 UITableViewCell nib 文件来以不同的方式实现这一点。使 UIViewTableController 成为 Cell nib 文件的文件所有者,向 UIViewController 添加子类单元的 IBOutlet。使用加载自定义单元格
[[NSBundle mainBundle] loadNibNamed:@"Your Custom Cell nib file name" owner:self options:nil];
请参阅适用于 iOS 的 Apple 编程指南http://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/TableView_iPhone/TableViewCells/TableViewCells.html#//apple_ref/doc/uid/TP40007451-CH7