How to implement a loading animation when navigating in a iPhone app?

Question

It seems like a pretty simple problem, but I have been unable to find any good answers.

What I\'m trying to do is to make some sort of animation while some function is l

Answer 1

You can add a UIActivityIndicatorView to whichever view is "loading":

CGRect mainBounds = [[UIScreen mainScreen] bounds];
CGRect indicatorBounds = CGRectMake(mainBounds.size.width / 2 - 12,
    mainBounds.size.height / 2 - 12, 24, 24);
UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc]
    initWithFrame:indicatorBounds]];
indicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhite;
[indicator startAnimating];
[yourLoadingView addSubview:indicator];