Creating a “loading…” view using iPhone SDK

Question

How to create that black/gray modal popup kind of view that many apps use, when some long pending operation is in progress?

Like when using location based services, load

Answer 1

In XIB file, place UIView and UIActivityIndicatorView. Set ActivityIndicatorView Property SetAnimated to Yes.

@property (retain, nonatomic) IBOutlet UIView* m_LoadingView;

While Starting long operations, Add the LoadingView to the view

m_LoadingView.layer.cornerRadius = 10;
m_LoadingView.center = self.view.center;
[self.view addSubview:m_LoadingView];

After completing the process, Remove LoadingView from super view. [m_LoadingView removeFromSuperView];