how to integrate UINavigation bar with UIBarbuttonitem? - iphone

Question

here is my code....?how to integrate UINavigation bar with UIBarbuttonitem?
UINavigationBar *nav= [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, 320, 60)];
nav.backgroundColor = [UIColor whitecolor];
//nav.tintColor = [UIColor darkGrayColor];
[self.view addSubview:nav];
[nav release];

Answer 1

Try init your item and then
nav.leftBarButtonItem = barButtonItem;
or
nav.rightBarButtonItem = barButtonItem;
You can only have two items on the navigation bar

Answer 2

Note that UIBarButtonItem buttons are properties of the UINavigationItem, not the UINavigationBar.
For example, when using a UINavigationController, it automatically provides its own UINavigationBar. But each of the views managed by the navigation controller can define a UINavigationItem, which controls the title, left and right buttons, etc.

Answer 3

Update: iOS 5 supports multiple buttons on the same side. From the UINavigationItem docs:
Customizing Views
titleView property
leftBarButtonItems property
leftBarButtonItem property
rightBarButtonItems property
rightBarButtonItem property
– setLeftBarButtonItems:animated:
– setLeftBarButtonItem:animated:
– setRightBarButtonItems:animated:
– setRightBarButtonItem:animated:
So, basically, you would write something like this to add two buttons on the left:
UIBarButtonItem *refreshBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:#selector(refreshPlans:)];
UIBarButtonItem *selectYearBtn = [[UIBarButtonItem alloc] initWithTitle:#"Select Year" style:UIBarButtonSystemItemAction target:self action:#selector(selectYear)];
self.navigationItem.leftBarButtonItems = [[NSArray alloc] initWithObjects: refreshBtn, selectYearBtn, nil];
Unfortunately, I haven't seen a way to do this in the Storyboard. Hope this helps.