Image on Navigation Bar Back Button - iphone

Question

In our application I use Left and right button on navigation bar.
I want a image on back (left)button.If i use segment for that then
necessary to define a action for back button.
Please advice me for any method.

Answer 1

Yeah, if you use a Bar Button item you can go to Bar Button Item Attributes in Interface Builder and there should an Image option you can select.

Answer 2

The easiest way we found to replace the back button with our own goes like this.
Add a back button in the nib file outside your view. customize it as you wish.
connect it as an IBOutlet. Let's call it btnBack.
in ViewDidLoad do this:
UIBarButtonItem *back = [[UIBarButtonItem alloc] initWithCustomView:btnBack];
[self.navigationItem setLeftBarButtonItem:back animated:YES];
connect an action to your backBtn like this:
- (IBAction)Back:(id)sender {
[self.navigationController popViewControllerAnimated:YES];
}
And thats it you got yourself a customized back button :)

Answer 3

You can do it by subclassing UINavigationBar, then create a method like this :
+ (UIBarButtonItem *)barButtonWithImage:(NSString *)imageName target:(id)target action:(SEL)action {
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:target action:action forControlEvents:UIControlEventTouchUpInside];
UIImage *titleImage = [UIImage imageNamed:imageName];
[button setImage:titleImage forState:UIControlStateNormal];
[button sizeToFit];
UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithCustomView:button];
return item;
}
And then add it to your navigation bar like this :
[self.navigationItem setLeftBarButtonItem:[TFNavigationBar barButtonWithImage:#"rp_settings.png" target:self action:#selector(showSettings)]];
p.s: I prefer to use singletons, that's why that it is.

Answer 4

If you want to simply replace your back button with an image through out your app..
[[UINavigationBar appearance] setBackIndicatorImage:[UIImage imageNamed:#"back_button"]];
[[UINavigationBar appearance] setBackIndicatorTransitionMaskImage:[UIImage imageNamed:#"back_button"]];
Or for specific navigation bars specify your navBar instead of '[UINavigationBar appearance]'. This works perfectly.