Managing multiple Popover (PostViewController.m)

//
//  PostViewController.m
//  Berry
//
//  Created by Tommie Carter on 9/8/12.
//  Copyright (c) 2012 Tommie Carter. All rights reserved.
//

#import "PostViewController.h"

@interface PostViewController ()

@end

@implementation PostViewController
@synthesize  popoverContent, popViewController;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    [[NSNotificationCenter defaultCenter]
     addObserver:self
     selector:@selector(willEnterForegroundNotification:)
     name:UIApplicationWillEnterForegroundNotification
     object:nil];

    [[NSNotificationCenter defaultCenter]
     addObserver:self
     selector:@selector(willResignActiveNotification:)
     name:UIApplicationWillResignActiveNotification
     object:nil];

    // Do any additional setup after loading the view.
}
- (void)willEnterForegroundNotification:(NSNotification *)notification
{
    //
}

- (void)willResignActiveNotification:(NSNotification *)notification
{
    [self setPopoverContent:nil];
}

-(void)didReceiveMemoryWarning{
    [super didReceiveMemoryWarning];
    //release stuff
}

- (void)viewDidUnload
{
    [self setPopoverContent:nil];
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}
- (void)viewWillAppear:(BOOL)animated{

}
- (void)viewDidAppear:(BOOL)animated{

}
- (void)viewWillDisappear:(BOOL)animated{

}
- (void)viewDidDisappear:(BOOL)animated{

}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}


/* Called on the delegate when the popover controller will dismiss the popover. Return NO to prevent the dismissal of the view.
 */
- (BOOL)popoverControllerShouldDismissPopover:(UIPopoverController *)popoverController{
    return YES;
}

/* Called on the delegate when the user has taken action to dismiss the popover. This is not called when -dismissPopoverAnimated: is called directly.
 */
- (void)popoverControllerDidDismissPopover:(UIPopoverController *)popoverController{

}

- (IBAction)showPopContentView:(id)sender {

    UIButton *popContentButton = (UIButton*)sender;

    if (![self popoverContent])
    {
        switch (popContentButton.tag) {
            case 100:
                popoverContent = (ClientViewController*)[[self storyboard]instantiateViewControllerWithIdentifier:@"ClientViewController"];
                break;
            case 101:
                popoverContent = (MatterViewController*)[[self storyboard]instantiateViewControllerWithIdentifier:@"MatterViewController"];
                break;
            case 102:
                popoverContent = (ActivityViewController*)[[self storyboard]instantiateViewControllerWithIdentifier:@"ActivityViewController"];
                break;
            case 103:
                popoverContent = (TaskViewController*)[[self storyboard]instantiateViewControllerWithIdentifier:@"TaskViewController"];
                break;
            default:
                NSLog(@"%s ; BAD POPOVER BUTTON POINTER",__PRETTY_FUNCTION__);
                break;
        }

        popoverContent.contentSizeForViewInPopover = CGSizeMake(320.0,299.0);

        //popViewController is also a property
        popViewController = [[UIPopoverController alloc]
                             initWithContentViewController:popoverContent];

    }

    // Perform setup on the fancy controller you want to do every
    // time the action gets triggered here. Do initialization in the if
    // block above.

    // Now display the popover from the sender's frame.
    [popViewController presentPopoverFromRect:popContentButton.frame
                                       inView:[self view]
                     permittedArrowDirections:UIPopoverArrowDirectionAny
                                     animated:YES];

    popoverContent = nil;
    popContentButton = nil;


}
@end