How do I put viewController's into a UIScrollView - iphone

Question

I want to initialize 5 viewController's that I want to be able to flick between in a UIScrollView, when my app loads.

Answer 1

Here is an example of how you can do this:
- (void)viewDidLoad
{
//standard UIScrollView is added
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
[self.view addSubview:scrollView];
scrollView.pagingEnabled = YES;
scrollView.contentSize = CGSizeMake(320*2, 460); //this must be the appropriate size!
//required to keep your view controllers around
controllers = [[NSMutableArray alloc] initWithCapacity:0];
//just adding two controllers
LabeledViewController *one = [[LabeledViewController alloc] initWithPosition:0 text:#"one"];
[scrollView addSubview:one.view];
[controllers addObject:one];
LabeledViewController *two = [[LabeledViewController alloc] initWithPosition:1 text:#"two"];
[scrollView addSubview:two.view];
[controllers addObject:two];
}
LabeledViewController is pretty simple, but you can add as much to it as you want:
#implementation LabeledViewController
- (id)initWithPosition:(NSInteger)position text:(NSString*)text
{
if (self = [super init]) {
myPosition = position;
myText = [text retain];
}
return self;
}
- (void)viewDidLoad
{
//this will setup the position in the UIScrollView
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(320*myPosition, 0, 320, 460)];
self.view = view;
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 320, 50)];
label.text = myText;
[self.view addSubview:label];
}