issue in setting image of navigation bar while presentModalViewController - ios

Question

this is how i set image in my first class in viewDidLoad which is tableView
if ([self.navigationController.navigationBar respondsToSelector:#selector(setBackgroundImage:forBarMetrics:)]) {
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"header.png"] forBarMetrics:UIBarMetricsDefault];
}
now this how i go to detail view
DetailViewController *dvController = [[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:[NSBundle mainBundle]];
[self.navigationController pushViewController:dvController animated:YES];
in detail view's bar the image which i have set for navigation bar comes automatically there and everything works perfect
now my problem is that pushViewController is working perfectly images are getting displayed
but i get default image in presentModelViewController this is how i use it
- (void) modelappear
{
if (self.testModalViewController == nil)
{
TestModalViewController *temp = [[TestModalViewController alloc] initWithNibName:#"TestModalViewController" bundle:[NSBundle mainBundle]];
self.testModalViewController = temp;
[temp release];
}
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:self.testModalViewController];
[self presentModalViewController:nav animated:YES];
}
Note i just set buttons in inner hierarchy views
Can you please tell me what am i doing wrong? please give explanation with answer thank you so much

Answer 1

try like this ,
DetailViewController *dvController = [[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:[NSBundle mainBundle]];
dvController.topViewController.navigationController.navigationBar.tintColor = [UIColor colorWithPatternImage:[UIIMage imageNamed:#"name.png"]];
[self presentModalViewController:nav animated:YES];

Answer 2

UIImage *image = [UIImage imageNamed:#"header.png"];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
[self.navigationController.navigationBar addSubview:imageView];

Answer 3

UIImage *image = [UIImage imageNamed:#"header.png"];
UIImageView *imageViewe = [[UIImageView alloc] initWithImage:image];
UILabel *tmpTitleLabel = [[UILabel alloc] initWithFrame:CGRectMake(100, 3, 150, 40)];
[tmpTitleLabel setFont:[UIFont boldSystemFontOfSize:18]];
tmpTitleLabel.text = #"Add Manually";
tmpTitleLabel.backgroundColor = [UIColor clearColor];
tmpTitleLabel.textColor = [UIColor whiteColor];
CGRect applicationFrame = CGRectMake(0, 0, 300, 40);
UIView * newView = [[[UIView alloc] initWithFrame:applicationFrame] autorelease];
[newView addSubview:imageViewe];
[newView addSubview:tmpTitleLabel];
[self.navigationController.navigationBar addSubview:newView];