Set toolbar for keyboard

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{

    [[NSNotificationCenter defaultCenter] addObserver:self 

                                             selector:@selector(keyboardDidShow:) 

                                                 name:UIKeyboardDidShowNotification 

                                               object:nil];

    return YES;

}

- (void)keyboardDidShow:(NSNotification *)note
{

    UIButton *returnBtn = [UIButton buttonWithType:UIButtonTypeCustom];

    returnBtn.frame = CGRectMake(0,-25,320,25);

    returnBtn.adjustsImageWhenHighlighted = NO;

    returnBtn.backgroundColor=[UIColor darkGrayColor];

    returnBtn.titleLabel.textColor=[UIColor whiteColor];

    [returnBtn setBackgroundImage:[UIImage imageNamed:@"keyBtn.png"] forState:UIControlStateNormal];

    

    [returnBtn addTarget:self action:@selector(keyboardBtn:) forControlEvents:UIControlEventTouchUpInside];

    // locate keyboard view

    UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];

    UIView* keyboard;

    for(int i=0; i<[tempWindow.subviews count]; i++) {

        keyboard = [tempWindow.subviews objectAtIndex:i];

        // keyboard found, add the button

        if([[keyboard description] hasPrefix:@"<UIPeripheralHost"] == YES)

            //  if (txtTag==5) {

            [keyboard addSubview:returnBtn];

    }

}

-(IBAction)keyboardBtn:(id)sender
{

    [yourTextField resignFirstResponder];/// resign all textfield

}