Customize navigation bar with title view

Question

I am trying to add a custom view in the center of a navigation bar and I am using the following code to test it:

UIView * testView = [[UIView alloc] init];
[         


        

Answer 1

#import  
@interface MasterViewController : UITableViewController
@end


#import "MasterViewController.h"
@interface MasterViewController ()
@end

@implementation MasterViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    self.navigationItem.titleView = [self titleView];
}

- (UIView *)titleView {
    CGFloat navBarHeight = self.navigationController.navigationBar.frame.size.height;
    CGFloat width = 0.95 * self.view.frame.size.width;
    UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, width, navBarHeight)];

    UIImage *logo = [UIImage imageNamed:@"logo.png"];
    UIButton *logoButton = [UIButton buttonWithType:UIButtonTypeCustom];
    CGFloat logoY = floorf((navBarHeight - logo.size.height) / 2.0f);
    [logoButton setFrame:CGRectMake(0, logoY, logo.size.width, logo.size.height)];
    [logoButton setImage:logo forState:UIControlStateNormal];

    UIImage *bubble = [UIImage imageNamed:@"notification-bubble-empty.png"];
    UIImageView *bubbleView = [[UIImageView alloc] initWithImage:bubble];

    const CGFloat Padding = 5.0f;
    CGFloat bubbleX = 
        logoButton.frame.size.width + 
        logoButton.frame.origin.x + 
        Padding;
    CGFloat bubbleY = floorf((navBarHeight - bubble.size.height) / 2.0f);
    CGRect bubbleRect = bubbleView.frame;
    bubbleRect.origin.x = bubbleX;
    bubbleRect.origin.y = bubbleY;
    bubbleView.frame = bubbleRect;

    [containerView addSubview:logoButton];
    [containerView addSubview:bubbleView];

    return containerView;
}

@end