How to show fullscreen popovercontroller in iPhone screen?

I have UIbarbuttonItem in navationbar and than click the button works well iPad simulator but don't work iPhone simulator because Popover not supported iPhone. I trying to show fullscreen popovercontroller in iPhone screen.How to fix this problem. I add my codes and screenshots. Thanks in advance. MyCodes;

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    UIBarButtonItem *shareItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:nil];
    UIBarButtonItem *cameraItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCamera target:self action:@selector(doneButtonPressed:)];
    UIBarButtonItem *searchItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:nil];
    UIBarButtonItem *flexibleItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
    NSArray *actionButtonItems = @[shareItem, cameraItem, flexibleItem,searchItem];
    self.navigationItem.rightBarButtonItems = actionButtonItems;



}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
-(void)doneButtonPressed:(id)sender
{
    if(![popoverController isPopoverVisible]){
        UIViewController *viewControllerForPopover = [self.storyboard instantiateViewControllerWithIdentifier:@"MyIdentifier"];
        popoverController = [[UIPopoverController alloc] initWithContentViewController:viewControllerForPopover];
        popoverController.delegate=self;
        [popoverController presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
        //popoverController.passthroughViews=[NSArray arrayWithObjects:self.view, nil];
    }
    else{

        [popoverController dismissPopoverAnimated:YES];
    }


}

@interface ViewController : UIViewController<UIPopoverControllerDelegate,UIPopoverPresentationControllerDelegate>{

    UIPopoverController *popoverController;

    CameraViewController *cameraPopOver;
}

My Screens;