Add UITableViewCell with UITextField Dynamically - iphone

Question

I'm attempting to have a UITableView that I can dynamically add and remove rows from, and the rows have a UITextField in them. For adding the rows, I'm using the code:
- (void) addRow
{
[nameArray addObject:[NSString stringWithFormat:#"%i", x]];
[self.tableView reloadData];
x++;
}
And I'm just doing a count of nameArray to get how many rows I have in my tableView. Then, inside of cellForRowAtIndexPath, I've got the following code
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
...
/*Default Apple-y stuff*/
...
if ([indexPath row] == 0) {
playerTextFieldZero = [[UITextField alloc] initWithFrame:CGRectMake(20, 10, 185, 30)];
playerTextFieldZero.adjustsFontSizeToFitWidth = YES;
playerTextFieldZero.placeholder = #"Name";
playerTextFieldZero.textColor = [UIColor blackColor];
playerTextFieldZero.returnKeyType = UIReturnKeyDone;
playerTextFieldZero.backgroundColor = [UIColor whiteColor];
playerTextFieldZero.autocorrectionType = UITextAutocorrectionTypeNo; // no auto correction support
playerTextFieldZero.textAlignment = UITextAlignmentLeft;
playerTextFieldZero.tag = 0;
playerTextFieldZero.delegate = self;
playerTextFieldZero.clearButtonMode = UITextFieldViewModeNever; // no clear 'x' button to the right
[playerTextFieldZero setEnabled: YES];
[cell addSubview:playerTextFieldZero];
[playerTextFieldZero becomeFirstResponder];
[playerTextFieldZero release];
}
...
/*More of those in here*/
...
return cell;
}
I've got multiple issues with this code. The first issue is I'm doing a preset number of UITextFields, so that I can call them all in textFieldShouldReturn. Is there a good way for me to generate UITextFields that will return when I press the done key?
The second biggest issue with the way I'm doing this right now is my UITextFields get cleared every time I add a new one. Any idea why?

Answer 1

To solve your first issue I would begin by pulling the UITextField creation code into a method..
- (UITextField*)textFieldForCell:(UITableViewCell*)cell withDelegate:(id<UITextFieldDelegate>*)delegate {
UITextField textField = [[UITextField alloc] initWithFrame:CGRectMake(20, 10, 185, 30)];
textField.delegate = self;
....
[cell addSubview:playerTextFieldZero];
[textField release];
}
Then invoke the new method in your tableView:cellForRowAtIndexPath: method...
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
...
// Custom initialization code
[self textFieldForCell:cell withDelegate:self];
}
Now to make sure that your UITextField's respond to the return key implement the textFieldShouldReturn: method of your UITextFieldDelegate (probably your UITableViewController) to always return true...
-(bool)textFieldShouldReturn:(UITextField*)textField {
return YES;
}
As for your second issue, I believe this is a result of directly invoking reloadData. This will force your UITableView to recreate its cells. This in turn recreates your UITextFields and you subsequently lose their state/text. I think your next logical step will be to introduce a model (NSMutableArray) that stores the state of each UITextField. You could begin by saving the text of the field into the array upon the UITextFieldDelegate receiving the textFieldShouldReturn message.