我必须使用 tableview 在 iPhone 应用程序中呈现动态表单。此表单可能有多个 UI 控件，如按钮、文本字段、标签、选择器、日期选择器。
我得到了一个 iPad 示例代码，它能够呈现动态表单，但这个示例代码使用的是 UIPopoverController，iPhone 应用程序不支持它。所以我正在寻找一些应该在 iPhone 中工作的示例代码。
下面是在动态表单中单击按钮时显示组合框的代码。我需要应该显示带有列表项的选择器的代码。
示例代码：https ://github.com/ecrichlow/iPad-Dynamic-Table-Cells
- (IBAction)buttonPressed:(id)sender
{
[delegate rowItemWasSelected:self];
if (self.itemControlType == ControlTypeToggleButton)
{
...
}
else if (self.itemControlType == ControlTypePopup)
{
...
}
else if (self.itemControlType == ControlTypeCombo)
{
UITableViewController *popoverTable = [[[UITableViewController alloc] initWithStyle:UITableViewStylePlain] autorelease];
UIToolbar *toolbar = [[[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, DEFAULT_POPOVER_WIDTH, DEFAULT_TOOLBAR_HEIGHT)] autorelease];
UIView *containerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, DEFAULT_POPOVER_WIDTH, ([self.controlSelections count] * popoverTable.tableView.rowHeight) + DEFAULT_TOOLBAR_HEIGHT)] autorelease];
UIViewController *containerViewController = [[[UIViewController alloc] init] autorelease];
UIPopoverController *popoverController = [[UIPopoverController alloc] initWithContentViewController:containerViewController];
UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(DEFAULT_COMBO_TEXTFIELD_MARGIN, (DEFAULT_TOOLBAR_HEIGHT - DEFAULT_COMBO_TEXTFIELD_HEIGHT) / 2, DEFAULT_POPOVER_WIDTH - (DEFAULT_COMBO_TEXTFIELD_MARGIN * 2), DEFAULT_COMBO_TEXTFIELD_HEIGHT)];
textField.delegate = self;
textField.autocorrectionType = UITextAutocorrectionTypeNo;
textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
textField.font = [UIFont systemFontOfSize:DEFAULT_COMBO_FONT_SIZE];
textField.borderStyle = UITextBorderStyleRoundedRect;
textField.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
[textField addTarget:self action:@selector(fieldTextDidUpdate:) forControlEvents:UIControlEventEditingDidEnd];
containerViewController.view = containerView;
popoverTable.tableView.dataSource = self;
popoverTable.tableView.delegate = self;
popoverTable.tableView.frame = CGRectMake(0, DEFAULT_TOOLBAR_HEIGHT, DEFAULT_POPOVER_WIDTH, [self.controlSelections count] * popoverTable.tableView.rowHeight);
popoverController.popoverContentSize = CGSizeMake(DEFAULT_POPOVER_WIDTH, ([self.controlSelections count] * popoverTable.tableView.rowHeight) + DEFAULT_TOOLBAR_HEIGHT);
popoverController.delegate = self;
[toolbar addSubview:textField];
[containerView addSubview:toolbar];
[containerView addSubview:popoverTable.tableView];
optionPopoverController = popoverController;
[popoverController presentPopoverFromRect:control.frame inView:control.superview permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
// If there's currently an object that's first responder, make it resign that status
for (UIView *subview in self.control.superview.subviews)
{
if ([subview isKindOfClass:[UITextField class]])
{
if ([subview isFirstResponder])
{
[subview resignFirstResponder];
[[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:1]];
}
}
}
[textField becomeFirstResponder];
}
else if (self.itemControlType == ControlTypeButton)
{
// Don't need to do anything here. Caller passed in target and action. But in order to trigger delegate rowItemWasSelected this control type was added here.
}
}