Hi, I want to create viewController class programmatically in which the view of nib file of viewController is not fixed. I have a UntitledViewController class that contains 4 UIButtons:

-(IBAction)buttonPressed:(id)sender{
    if((UIButton *)sender == button1){
        tagNumber = button1.tag;
        NewViewController *newVC = [[NewViewController alloc] init];
        //newVC.tagN
        [self.navigationController pushViewController:newVC animated:YES];
        NSLog(@"Button Tag Number:- %i", tagNumber);

    }

    if((UIButton *) sender == button2){
        tagNumber = button2.tag;
        NewViewController *newVC = [[NewViewController alloc] init];
        [self.navigationController pushViewController:newVC animated:YES];


    }

    if((UIButton *) sender == button3){
        tagNumber = button3.tag;
        NewViewController *newVC = [[NewViewController alloc] init];
        [self.navigationController pushViewController:newVC animated:YES];

    }

    if((UIButton *) sender == button4){
        int x = tagNumber;
        tagNumber = button4.tag;
        NewViewController *newVC = [[NewViewController alloc] init];
        newVC.untitledVC = self;
        [self.navigationController pushViewController:newVC animated:YES];
    }
}

When I will click any one of the UIButtons, I want to create a new NewViewController class with button tag property but without fixed nib file. In NewViewController's loadView event I want to fix the view of the nib of NewViewController class using UIButton's tag property (In NewViewController.xib I'm creating 4 UIViews named view1, view2, view3 and view4).

-(void)loadView{
    [super loadView];
    CGRect frame = CGRectMake(0, 0, 320, 480);
    UIView *newView = [[UIView alloc] initWithFrame:frame];
    newView.tag = untitledVC.tagNumber;
    self.view1 = newView;
}

Now I want that when I click button1 the NewViewController will be generated with view1 and when I click button2 the NewViewController will be generated with view2 and so on with different implementation.

Thanks.