How to use a view multiple times?

To create your views programatically, use viewDidLoad: of your UIViewController

- (void)viewDidLoad
{
    [super viewDidLoad];

    for(int i=0;i<50;i++){
        //provide some initial frame, set the correct frames in viewWillLayoutSubviews: 
        CGRect frame = CGRectMake(0,i*10;100;5);
        //create a new UIView, use your own UIView subclass here if you have one
        UIView *view = [[UIView alloc] initWithFrame:frame];
        //set it's backgroundColor in case you are copy&pasting this code to try it out, so you see that there are actually views added ;)
        view.backgroundColor = [UIColor blueColor];
        //add it to the viewController's view
        [self.view addSubview:view];

        //you might consider creating an NSArray to store references to the views for easier access in other parts of the code
    }
}

To create a view that you designed in a storyboard use something like described here: https://stackoverflow.com/a/13390131/3659846

MyViewController *myViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"MyScene"]; 
[self.view addSubView:myViewController.theViewToAdd];  

To create a view from a nib file, use the approach described here: https://stackoverflow.com/a/11836614/3659846

NSArray *nibContents = [[NSBundle mainBundle] loadNibNamed:@"yourNib" owner:nil options:nil];
UIView *view = [nibContents lastObject]; //assuming the nib contains only one view
[self.view addSubview:view];

for (int i = 0; i < 50; i++) {
    UIView *someView = [UIView new];
    // this positions each view one under another with height 40px and width 320px like a table
    [someView setFrame:CGRectMake(0,40*i,320,40)];
    // set other view properties 
    // put a UILabel on the view
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10,10,200,20)];
    [view addSubview:label];
    // set label properties
    [self.view addSubview:someView]
}

Note the frame is relative to its parent view coordinate system and you need to add the view to its parent view by calling addSubview: method. -good luck