MBProgressHUD *loadingHUD = [[MBProgressHUD alloc] init];
loadingHUD.mode = MBProgressHUDModeCustomView;
loadingHUD.labelText = nil;
loadingHUD.detailsLabelText = nil;
UIView *customView = [[UIView alloc] initWithFrame:self.view.bounds]; // Set a size
// Add stuff to view here
loadingHUD.customView = customView;
[HUD show:YES];