How can I add multiple UIBarButtonItem's to a UINavigationBar?

问题

I want to add many UIBarButtonItem's to a UINavigationbar, not just right and left buttons:

logoButton = [[UIBarButtonItem alloc] initWithTitle:@"A Button" style:UIBarButtonItemStyleBordered target:self action:@selector(logoButtonAClicked:)];

logoButton2 = [[UIBarButtonItem alloc] initWithTitle:@"B Button" style:UIBarButtonItemStyleBordered target:self action:@selector(logoButtonBClicked:)];

logoButto3 = [[UIBarButtonItem alloc] initWithTitle:@"C Button" style:UIBarButtonItemStyleBordered target:self action:@selector(logoButtonCClicked:)];

self.navigationController.navigationBarHidden = NO;

self.title = @"Title";

NSArray* items = [[NSArray alloc] initWithObjects:logoButtonA, logoButtonB, logoButtonC, nil];
self.navigationController.navigationBar.items = items;

I get a SIGBRT on self.navigationController.navigationBar.items = items;

How can I add multiple UIBarButtonItems to a UINavigationBar?

回答1:

You need to add UIBarButtonItem instance to a UINavigationItem, not to a UINavigationBar. So you can do this as:

NSArray *buttonArray = [NSArray arrayWithObjects:logoButton, logoButton2, logoButton3, nil];
self.navigationItem.leftBarButtonItems = buttonArray;

If you want your buttons on the right, use rightBarButtonItems.

回答2:

You should use

self.navigationItem.leftBarButtonItems = items;

回答3:

use addSubView in navigationbar.

来源：https://stackoverflow.com/questions/9867259/how-can-i-add-multiple-uibarbuttonitems-to-a-uinavigationbar