How to add multiple UIBarButtonItems on right side of Navigation Bar?

-(void)viewDidLoad{


UIBarButtonItem *anotherButton1 = [[UIBarButtonItem alloc] initWithTitle:@"Button_1" style:UIBarButtonItemStylePlain target:self action:@selector(button_1:)];


UIBarButtonItem *anotherButton2 = [[UIBarButtonItem alloc] initWithTitle:@"Button_" style:UIBarButtonItemStylePlain target:self action:@selector(button_2:)];


self.navigationItem.rightBarButtonItems=@[anotherButton1,anotherButton2];
}

Use this in swift:

override func viewDidLoad() {
super.viewDidLoad()


let editImage    = UIImage(named: "plus")!
let searchImage  = UIImage(named: "search")!


let editButton   = UIBarButtonItem(image: editImage,  style: .Plain, target: self, action: "didTapEditButton:")
let searchButton = UIBarButtonItem(image: searchImage,  style: .Plain, target: self, action: "didTapSearchButton:")


navigationItem.rightBarButtonItems = [editButton, searchButton]
}

Write the action functions like this:

func didTapEditButton(sender: AnyObject){
...
}


func didTapSearchButton(sender: AnyObject){
...
}

Swift 4 & 5

    override func viewDidLoad() {
super.viewDidLoad()
let editImage    = UIImage(named: "edit")!
let searchImage  = UIImage(named: "search")!


let editButton   = UIBarButtonItem(image: editImage,  style: .plain, target: self, action: #selector(didTapEditButton(sender:)))
let searchButton = UIBarButtonItem(image: searchImage,  style: .plain, target: self, action: #selector(didTapSearchButton(sender:)))


navigationItem.rightBarButtonItems = [editButton, searchButton]
}


@objc func didTapEditButton(sender: AnyObject){


}


@objc func didTapSearchButton(sender: AnyObject){


}

I think nothing of the above is going to work

Try this

var burgerItem = UIBarButtonItem(image: UIImage(named:"categories"), style: .Plain, target: self, action: "categories")
var weatherItem = UIBarButtonItem(title: "Weather", style: .Plain, target: self, action: "weather")




burgerItem.tintColor = UIColor.whiteColor()
weatherItem.tintColor = UIColor.whiteColor()


navigationItem.setRightBarButtonItems([burgerItem,weatherItem], animated: true)

You have to use navigationItem.setRightBarButtonItems and be carefull. navigationItem has to be of a view controller.

class testViewController:UIViewController {


ovverride func viewDidLoad() {
self.navigationItem.setRightBarButtonItems(...


}


}

This is may be help for you in objective-c,

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {


self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
self.navigationItem.title = @"Title";
UIBarButtonItem *logOutButton = [[UIBarButtonItem alloc] initWithTitle:@"Logout" style:UIBarButtonItemStylePlain target:self action:@selector(ButtonClickedAtIndex1:)];
[logOutButton setTintColor:[UIColor blackColor]];
logOutButton.tag = 1;


UIBarButtonItem *syncBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Sync" style:UIBarButtonItemStylePlain target:self action:@selector(ButtonClickedAtIndex1:)];
[syncBarButtonItem setTintColor:[UIColor blackColor]];
syncBarButtonItem.tag = 2;


self.navigationItem.leftBarButtonItem = logOutButton;
self.navigationItem.rightBarButtonItem = syncBarButtonItem;


float systemVersion = [[[UIDevice currentDevice] systemVersion] floatValue];


if (systemVersion >= 7.0) {
self.edgesForExtendedLayout = UIRectEdgeNone;
self.navigationController.navigationBar.translucent = NO;
}
}
return self;
}

In Swift 3 you can use:

let editImage   = UIImage(named: "plus")!
let searchImage = UIImage(named: "search")!


let editButton   = UIBarButtonItem(image: editImage,  style: .plain, target: self, action: #selector(didTapEditButton))
let searchButton = UIBarButtonItem(image: searchImage,  style: .plain, target: self, action: #selector(didTapSearchButton))


navigationItem.rightBarButtonItems = [editButton, searchButton]

Simply add this code:

self.navigationItem.leftBarButtonItem = nil


let button = UIButton(type: .custom)
button.setImage(UIImage (named: "ChatTab"), for: .normal)
button.frame = CGRect(x: 0.0, y: 0.0, width: 35.0, height: 35.0)
//button.addTarget(target, action: nil, for: .touchUpInside)
let barButtonItem = UIBarButtonItem(customView: button)


let button2 = UIButton(type: .custom)
button2.setImage(UIImage (named: "ActivityTab"), for: .normal)
button2.frame = CGRect(x: 0.0, y: 0.0, width: 35.0, height: 35.0)
//button.addTarget(target, action: nil, for: .touchUpInside)


let barButtonItem2 = UIBarButtonItem(customView: button2)
self.navigationItem.rightBarButtonItems = [barButtonItem, barButtonItem2]

This is the result:

Use navigationItem's rightBarButtonItems, which takes an array of UIBarButton. Appledoc

let share = UIBarButtonItem(barButtonSystemItem: .action, target: self, action: #selector(shareTapped))
let add = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addTapped))
navigationItem.rightBarButtonItems = [add, share]

使用Swift 4

let editImage       = UIImage(named: "toolbar_edit")!
let favoriteImage   = UIImage(named: "toolbar_fav_solid")!


let editButton      = UIBarButtonItem(image: editImage,  style: .plain, target: self, action: #selector(didTapEditButton))
let favoriteButton  = UIBarButtonItem(image: favoriteImage,  style: .plain, target: self, action: #selector(didTapFavoriteButton))


navigationItem.rightBarButtonItems = [editButton, favoriteButton]

Click action for those buttons

@objc func didTapEditButton(sender: AnyObject) {
print("edit")
}


@objc func didTapFavoriteButton(sender: AnyObject) {
print("favorite")
}

Output screenshot (iPhone X)

For Xamarin iOS with the new updates, it is like:

UIBarButtonItem Button1 = new UIBarButtonItem(UIImage.FromBundle("Image1"), UIBarButtonItemStyle.Plain,YourEventHandler);
UIBarButtonItem Button2 = new UIBarButtonItem(UIImage.FromBundle("Image1"), UIBarButtonItemStyle.Plain,YourEventHandler);


NavigationItem.SetRightBarButtonItems(new[]{ Button1, Button2 }, true);

I don't know wether an Interface Builder solution was not possible before, but at least with the most recent update (Xcode 11.0), it is possible to drag two UI Bar Buttons into the rightBarButton space. Two outlets and actions can then be dragged into the code like always.

Since the OP didn't ask for a solution without IB, I think this also qualifies as an answer.

Accepted answer as well as few of the answer is absolutely correct but in my case none of them work.

Reason : My View Controller was Inherited from UIViewController and I had to set Add to Cart Button and Search Button On Right hand side. And All my view controllers were a part of UITabbarController.

    let editImage = UIImage(named: "OrdersTabIcon")
let searchImage = UIImage(named: "OrdersTabIcon")
let editButton = UIBarButtonItem(image: editImage, style: .plain, target: self, action: #selector(iconTapped))
let searchButton = UIBarButtonItem(image: searchImage, style: .plain, target: self, action: #selector(iconTapped))

Instead of using

 self.navigationItem.setRightBarButtonItems([editButton, searchButton], animated: true)

Use This .

self.navigationController?.navigationBar.topItem?.setRightBarButtonItems([editButton, searchButton], animated: true)