Button reverse image not showing after showing / hiding SearchBar

Question

I have a SearchBar in my NavigationBar. When SearchBar is clicked, I show it above the back button in the navigation bar. However, when I show the back button again, the arrow next to it is no longer visible. Here is what I mean:

And here is my code:

#import "SearchViewController.h"

@interface SearchViewController ()

@end

- (void)viewDidLoad {
    [super viewDidLoad];
    if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
        self.edgesForExtendedLayout = UIRectEdgeNone;

    UISearchBar *searchBar = [UISearchBar new];
    searchBar.showsCancelButton = NO;
    [searchBar sizeToFit];
    searchBar.delegate = self;

    self.navigationItem.titleView = searchBar;
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:self action:nil];

}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{
[searchBar setShowsCancelButton:YES animated:YES];
    self.navigationItem.hidesBackButton = YES;
    self.navigationItem.titleView = searchBar;
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:self action:nil];
}

- (void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
{
    [searchBar setShowsCancelButton:NO animated:YES];
}

- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
{
    [searchBar resignFirstResponder];
    [searchBar setShowsCancelButton:NO animated:YES];

    self.navigationItem.titleView = searchBar;
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:self action:nil];
    self.navigationItem.hidesBackButton = NO;
}

@end

Any ideas on why this might be happening? Thank!

Answer 1

just add this line to the method searchBarCancelButtonClicked:searchBar:

self.navigationItem.leftBarButtonItem = nil;

Answer 2

*- (void)viewDidLoad {
    [super viewDidLoad];
    if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
        self.edgesForExtendedLayout = UIRectEdgeNone;
    UISearchBar *searchBar = [UISearchBar new];
    searchBar.showsCancelButton = NO;
    [searchBar sizeToFit];
    searchBar.delegate = self;
    self.navigationItem.leftBarButtonItem = nil;
    self.navigationItem.titleView = searchBar;
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:self action:nil];
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{
[searchBar setShowsCancelButton:YES animated:YES];
    self.navigationItem.hidesBackButton = YES;
    self.navigationItem.titleView = searchBar;
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:self action:nil];
}
- (void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
{
    [searchBar setShowsCancelButton:NO animated:YES];
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
{
    [searchBar resignFirstResponder];
    [searchBar setShowsCancelButton:NO animated:YES];
    self.navigationItem.titleView = searchBar;
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:self action:nil];
    self.navigationItem.hidesBackButton = NO;
}*