UIPicker in UITextField - ios

Question

I wanna show a picker when I click inside a UITextField. This is my code (which works):
[super viewDidLoad];
// Picker View dei Tipi
pickerTipo= [[UIPickerView alloc] init];
pickerTipo.showsSelectionIndicator = YES;
UIToolbar* keyboardDoneButtonView = [[UIToolbar alloc] init];
[keyboardDoneButtonView sizeToFit];
UIBarButtonItem* doneButton = [[UIBarButtonItem alloc]
initWithTitle:
#"Fine" style:UIBarButtonItemStyleBordered
target:self
action:#selector(pickerDoneClicked:)];
[keyboardDoneButtonView setItems:[NSArray arrayWithObjects:doneButton, nil]];
self.textTipo.inputAccessoryView = keyboardDoneButtonView;
[self.textTipo resignFirstResponder];
self.textTipo.inputView = pickerTipo;
self.textTipo.delegate = self;
The picker and the accessory view show correctly. The problem is that the UITextField is still editable, that is I can still typing inside the UITextField. I would that when the picker is shown, no editing is enabled inside the UITextField.
[SOLVED}
Following the accepted answer, the right code is :
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
if (textField == self.textTipo || textField == self.textStato)
return NO;
else
return YES;
}

Answer 1

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
if([textField.restorationIdentifier isEqualToString:#"textFieldIdentifier"])
{
return NO;
}
}
Hope it helps.

Answer 2

Instead of textfied you can use button with a background uiimage view of text field.

Answer 3

try this code:
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField;
{
if(textField==self.textTipo)
{
return NO;
}
else
{
return YES;
}
}

Answer 4

make your textfield a readonly property