textFieldShouldBeginEditing + UIKeyboardWillShowNotification + OS 3.2

Question

I have multiple textfields on a UIView.

I resign for a previous textField in textFieldShouldBeginEditing method, where following sequence of events are performed

• UIKeyboardWillHideNotification is received corresponding to that field where the keyboard for the previous field is hidden.

• the method textFieldShouldBeginEditing returns a YES and then

• UIKeyboardWillShowNotification is received where the keyboard for the current field is displayed.

However, in OS 3.2 even though textFieldShouldBeginEditing returns a YES, UIKeyboardWillShowNotification for the current field is not received.

The logic works for OS < 3.2

Any ideas where I might be doing wrong?

Listed below a part of my code (with only two text fields in xib).

I need to perform a set of operations at keyboardWillShow and keyboardWillHide Look at the difference on running the code in OS 3.2 and OS < 3.2

Can anyone explain the difference in behaviour?

.h file

#import 


@interface ExampleViewController : UIViewController  {
    IBOutlet UITextField *numericTextField;
    IBOutlet UITextField *alphaTextField;   
    UITextField *lastTextField;
    int lastCursorPos;
    int cursorPosition;
    NSMutableArray *textFields;
}
@property (nonatomic, retain) UITextField *lastTextField;
@property (nonatomic, retain) NSMutableArray *textFields;

@end


.m file

- (void)viewWillAppear:(BOOL)animated {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) 
                                                 name:UIKeyboardWillShowNotification object:self.view.window]; 
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) 
                                                 name:UIKeyboardWillHideNotification object:self.view.window]; 

    self.view.backgroundColor = [UIColor groupTableViewBackgroundColor];
    self.textFields = [[NSMutableArray alloc] initWithCapacity:2];
    [self.textFields insertObject:alphaTextField atIndex:0];
    [self.textFields insertObject:numericTextField atIndex:1];
    cursorPosition = 1;
    [numericTextField becomeFirstResponder];
}

-(void)viewWillDisappear:(BOOL)animated {
    [self setEditing:NO animated:YES];
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil]; 
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil]; 
}

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
    int index;
    for(UITextField *aField in self.textFields){

        if (textField == aField){
            index = [self.textFields indexOfObject:aField];
        }
    }
    if(index>=0 ){
        lastCursorPos = cursorPosition;
        self.lastTextField = [self.textFields objectAtIndex:lastCursorPos-1];
        cursorPosition = index +1;

    }
    [self.lastTextField resignFirstResponder];  

    return YES;
}
- (BOOL)textFieldShouldEndEditing:(UITextField *)textField {        
    return YES;
}

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES; 
}


- (void)keyboardWillShow:(NSNotification *)notif {
    NSLog(@"Inside keyboardWillShow");
}

- (void)keyboardWillHide:(NSNotification *)notif {      
    NSLog(@"Inside keyboardWillHide");
}