How to add button in navigation bar in iphone/ipad/IOS

Adding system bar button

UIBarButtonItem *saveButton = [[UIBarButtonItem alloc]                             initWithBarButtonSystemItem:UIBarButtonSystemItemAdd

                               target:self 

                                style:UIBarButtonItemStyleBordered

                               action:@selector(postNewCase:)];

self.navigationItem.rightBarButtonItem = saveButton;

[saveButton release];

-(IBAction)postNewCase:(id)sender {

}

Adding image bar button

UIImage *buttonImage = [UIImage imageNamed:@"home_icon.png"];

UIButton *forwardButton = [UIButton      buttonWithType:UIButtonTypeCustom];

[forwardButton setBackgroundImage:buttonImage forState:UIControlStateNormal];

forwardButton.frame = CGRectMake(0, 0, buttonImage.size.width, buttonImage.size.height);

[forwardButton addTarget:self action:@selector(postNewCase:)

           forControlEvents:UIControlEventTouchUpInside];

   

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithCustomView:forwardButton];

   

Adding plain button

UIBarButtonItem *postButton = [[UIBarButtonItem alloc] 

                               initWithTitle:@"Post"                                            

                               style:UIBarButtonItemStyleBordered 

                               target:self 

                               action:@selector(postNewCase:)];

self.navigationItem.rightBarButtonItem = postButton;

[postButton release];

Add background image to navigation bar

[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed: @"navigationBar.png"] forBarMetrics:UIBarMetricsDefault];

Add logo to navigation bar

 UIImage *image = [UIImage imageNamed: @"new_kj_logo-150.png"];

    UIImageView *imageView = [[UIImageView alloc] initWithImage: image];

   

    self.navigationItem.titleView = imageView;

Hide Navigation default back button

 self.navigationItem.hidesBackButton = YES;