iOS: Strange warnings and strange back on second select on table view - ios

Question

I am having a strange warning when I segue to one of my ViewControllers. Here is the warning:
Action connections from <UIView: 0x792b2a0; frame = (0 0; 320 568); autoresize = LM+RM+TM+BM; layer = <CALayer: 0x79e1ad0>> are not supported.
An other problem is, I am using a second UITableView to select a value from a list as dropdown list. In didSelectRowAtIndexPath I am doing this:
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
self.tergetTextField.text = self.items[indexPath.row];
[self performSelector:#selector(returnToParent) withObject:nil afterDelay:0.5];
}
- (void) returnToParent {
[self.navigationController popViewControllerAnimated:NO];
}
When I select a value from UITableView I am getting following warning:
Unbalanced calls to begin/end appearance transitions for <HMXSelectViewController: 0x7bb0350>
I have seen similar questions about this warning but given solutions did not worked for me. "performSelector afterDelay" was one of the solution adviced.
And the last strange problem is when I seque to UITableView for second time it returns after second time I select an item not on first.
Here is my codes: http://pastebin.com/TVn51ppD
And as a side question, what would you advice for selecting an item between 3 to 5 items, like a dropdown list?
UPDATE:
I have solved the Unbalanced calls and return on second select on UITableView problems with following:
- (IBAction)scaleEditingDidBegin:(id)sender {
selectionSource = 0;
[self.view endEditing:YES];
[self performSegueWithIdentifier:#"select" sender:self];
}
- (IBAction)statusEditingDidBegin:(id)sender {
selectionSource = 1;
[self.view endEditing:YES];
[self performSegueWithIdentifier:#"select" sender:self];
}

Answer 1

The reason Unbalanced calls to begin/end appearance transitions for* error is, when user touches UITextField, in scaleEditingDidBegin or statusEditingDidBegin function whe go to other UIView before Editing Did End event fired. To fix this add [self.view endEditing:YES] to both functions:
- (IBAction)scaleEditingDidBegin:(id)sender {
selectionSource = 0;
[self.view endEditing:YES];
[self performSegueWithIdentifier:#"select" sender:self];
}
- (IBAction)statusEditingDidBegin:(id)sender {
selectionSource = 1;
[self.view endEditing:YES];
[self performSegueWithIdentifier:#"select" sender:self];
}