Taking Advantage of the RootViewController

that is now available in cocos2d 0.99.5

I mentioned in a forum post about how cool it is not that we have an actual view controller available to us to hang stuff off of. A few people have asked about what I was referring to, so here's a sample project.

This is just the cocos2d base template with the MessageUI framework added (required for in-app email) and a few bits of code.

First we'll add a menu to "Hello World", add this in the layer init;

CCMenuItem *emailItem = [CCMenuItemFont itemFromString: @"Email" target:self selector:@selector(emailCallback)];

CCMenu *menu = [CCMenu menuWithItems: emailItem, nil];

menu.position = ccp(50,50);

[self addChild:menu];

Now add the emailCallback method;

-(void) emailCallback

{

    [(BaseEmailAppDelegate*)[[UIApplication sharedApplication] delegate] sendEmail];

}

In our app delegate we need to create our sendEmail method;
In the .h file

-(void)sendEmail;

In the .m file

-(void)sendEmail

{

    [viewController displayComposer];  

}

In our RootViewController we need to create our displayComposer method;
In the .h file
Import the MessageUI header

#import <MessageUI/MessageUI.h>

and add MFMailComposeViewControllerDelegate

@interface RootViewController : UIViewController <MFMailComposeViewControllerDelegate> 

{

}

-(void)displayComposer;

@end

In the .m file

@implementation RootViewController

#pragma mark -

#pragma mark Setup Mail Alert

- (void)setUpMailAccount {

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"System Error"

message:@"Please setup a mail account first."

delegate:self 

cancelButtonTitle:@"Dismiss"

otherButtonTitles:nil];

[alert show];

[alert release];

}

#pragma mark -

#pragma mark Compose Mail

// Displays an email composition interface inside the application. Populates all the Mail fields. 

-(void)displayComposerSheet {

if(![MFMailComposeViewController canSendMail]) {

[self setUpMailAccount];

return;

}

MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];

picker.mailComposeDelegate = self;

[self presentModalViewController:picker animated:YES];

    [picker release];

}

-(void)displayComposer {

NSLog(@"pop-up email here");

[self displayComposerSheet];

}

// Dismisses the email composition interface when users tap Cancel or Send. Proceeds to update the message field with the result of the operation.

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error

{ 

// Notifies users about errors associated with the interface

switch (result)

{

case MFMailComposeResultCancelled:

break;

case MFMailComposeResultSaved:

break;

case MFMailComposeResultSent:

break;

case MFMailComposeResultFailed:

break;

default:

{

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Email" message:@"Sending Failed - Unknown Error :-("

delegate:self cancelButtonTitle:@"OK"

otherButtonTitles: nil];

[alert show];

[alert release];

}

break;

}

[self dismissModalViewControllerAnimated:YES];

}

Here is the LINK to the sample project.