Ribbit "More Notifications, Please" Extra Credit Question

Here is a very basic implementation - maybe you could find a better one on the cocoapods repository (it will send you to a github project anyways)

Get the MBProgressHUB .h/.m files from github, add them to your project.

In the cameraViewController import the MBProgressHub.h file then in your send IBAction method put the following lines into your if else statement:

            if (!HUD) {
                   HUD = [[MBProgressHUD alloc] initWithView:self.navigationController.view];
            }
            [self.navigationController.view addSubview:HUD];
            HUD.labelText = @"Sending..";
            HUD.removeFromSuperViewOnHide = YES;
            [self uploadMessage];
            [[[self tabBarController] tabBar] setUserInteractionEnabled:NO];
            [HUD show:YES];

You will need to dismiss that view upon completion, once the PFObject is saved - therefore in the uploadMessage method, inside the completion block of the saveInBackground method add the following at the end before switching to the inbox tab:

            [HUD hide:YES];
            [[[self tabBarController] tabBar] setUserInteractionEnabled:YES];

oh yeah I defined HUD up in the @interface as a private instance variable:

@interface CameraViewController () {
    MBProgressHUD *HUD;
} 

Hope this helps,

don't forget to uprate :)

happy coding!