[ACCEPTED]-Add a navigation bar to a view without a navigation controller-uinavigationbar

Accepted answer
Score: 23

While there are several smart ways to answer 7 your question. I just solved it programmatically 6 and wrote the following code in my viewWillAppear (note 5 - viewDidLoad is also okay, but not suggested) -

-(void) viewWillAppear:(BOOL)animated {

    UINavigationBar *myNav = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
    [UINavigationBar appearance].barTintColor = [UIColor lightGrayColor];
    [self.view addSubview:myNav];

    UIBarButtonItem *cancelItem = [[UIBarButtonItem alloc] initWithTitle:@"Cancel"

    UIBarButtonItem *doneItem = [[UIBarButtonItem alloc] initWithTitle:@"Done"
                                                                target:self action:nil];

    UINavigationItem *navigItem = [[UINavigationItem alloc] initWithTitle:@"Navigation Title"];
    navigItem.rightBarButtonItem = doneItem;
    navigItem.leftBarButtonItem = cancelItem;
    myNav.items = [NSArray arrayWithObjects: navigItem,nil];

    [UIBarButtonItem appearance].tintColor = [UIColor blueColor];

So, you 4 have a white navigation bar with blue bar 3 button items without a Navigation controller. Again, there 2 are other ways to implement it in your case. Hope, this 1 was helpful.

Output -

enter image description here

Update -

To add images -

UIImageView *myImage = [[UIImageView alloc] initWithFrame:CGRectMake(0,10,32,32)];
[myImage setImage:[UIImage imageNamed:@"image.png"]];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:myImage];
[self.view addSubview:myImage];
Score: 8

Swift 4 Version

 let navigationBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: 320, height: 50))
    navigationBar.barTintColor = UIColor.lightGray

    let cancelButton = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: nil)
    let doneButton = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: nil)

    let navigationItem = UINavigationItem(title: "Title")
    navigationItem.leftBarButtonItem = cancelButton
    navigationItem.rightBarButtonItem = doneButton

    navigationBar.items = [navigationItem]


Score: 6

There is a way to use the NavigationItem in interface 8 builder for this.

First add a NavigationItem to your ViewController in 7 the interface builder, like you would with 6 a NavigationController. Make sure to make the NavigationBar is visible by 5 selecting something other than Inferred and None under 4 simulated metrics.

Second, in viewDidLoad, just add the following lines:

- (void)viewDidLoad 
    [super viewDidLoad];

    UINavigationBar *bar = [[UINavigationBar alloc] initWithFrame: frame];
    bar.items = @[self.navigationItem];
    [self.view addSubview: bar];

As 3 for frame, width will be the same as your ViewController and height will 2 be either 44.0 or 64.0 depending if the status bar is visible or not.

CGFloat navigationBarHeight = 44.f + [UIApplication sharedApplication].statusBarFrame.size.height;
CGRect frame = CGRectMake(0, 0, self.view.frame.size.width, navigationBarHeight);

And 1 if you wish to support different orientations use NSLayoutConstraints:

    CGFloat navigationBarHeight = 44.f + [UIApplication sharedApplication].statusBarFrame.size.height;
[self.view addConstraints: @[
    [NSLayoutConstraint constraintWithItem: self.view
                                 attribute: NSLayoutAttributeLeft
                                 relatedBy: NSLayoutRelationEqual
                                    toItem: bar
                                 attribute: NSLayoutAttributeLeft
                                multiplier: 1.0
                                  constant: 0.0],
    [NSLayoutConstraint constraintWithItem: self.view
                                 attribute: NSLayoutAttributeRight
                                 relatedBy: NSLayoutRelationEqual
                                    toItem: bar
                                 attribute: NSLayoutAttributeRight
                                multiplier: 1.0
                                  constant: 0.0],
    [NSLayoutConstraint constraintWithItem: self.view
                                 attribute: NSLayoutAttributeTop
                                 relatedBy: NSLayoutRelationEqual
                                    toItem: bar
                                 attribute: NSLayoutAttributeTop
                                multiplier: 1.0
                                  constant: 0.0],
    [NSLayoutConstraint constraintWithItem: bar
                                 attribute: NSLayoutAttributeHeight
                                 relatedBy: NSLayoutRelationEqual
                                    toItem: nil
                                 attribute: NSLayoutAttributeNotAnAttribute
                                multiplier: 1.0
                                  constant: navigationBarHeight],
Score: 1

be very careful about adding in "viewWillAppear", as 7 this method can be called more times, (for 6 example is a modal appears....) so use a 5 lazy approach:

1) declare a var:

var myNav: UINavigationBar?

2) test if 4 already set:

viewWillAppear:(BOOL)animated {
if self.myNav != nil{
self.myNav = ....

3) be sure remove exiting controller, for 3 example on didDisappear...

note.. is not 2 correct to specify size.. if iOS rotates, it 1 does not work fine..

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