Keeping text in an alert view, and saving text to an NSString? - objective-c

Question

I have a UITableView that is meant have a list of names. I want it to bring up an UIAlertView whenever a name is clicked, so that the accompanying information to the name (for now just the age) will be allowed to be changed.
As of now, I can get an alertView with a UITextField to appear, however once you close the alertView, the text inside the UITextField resets to the placeholder. How can I get the text to stay with the UIAlertView?
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UIAlertView *alert =
[[UIAlertView alloc] initWithTitle:#"Set Age"
message:[_tableData1 objectAtIndex:indexPath.row]
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
UITextField *textField = [alert textFieldAtIndex:0];
textField.placeholder = #"18";
[alert show];
}
Also, how can I get the text from the UIAlertView, and save it as a NSString?
Thank you!

Answer 1

You need to set your view controller as the delegate and then retrieve the value in the callback. You also need to add UIAlertViewDelegate to your #interface
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Set Age" message:[_tableData1 objectAtIndex:indexPath.row] delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
UITextField *textField = [alert textFieldAtIndex:0];
textField.placeholder = #"18";
[alert show];
}
-(void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex {
if(buttonIndex == alertView.cancelButtonIndex) {
return;
}
NSString * yourString = [alertView textFieldAtIndex:0].text
}