问题
I need to change color on the default "self.navigationItem.backBarButtonItem". To accomplish this I´ve created an custom Button class and implemented it like this:
- (void)viewDidLoad {
[super viewDidLoad];
BackButton *blueSaveButton = [[BackButton alloc] init];
UIBarButtonItem *temporaryBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:blueSaveButton];
temporaryBarButtonItem.title = @"Tillbaka";
self.navigationItem.backBarButtonItem = temporaryBarButtonItem;
[temporaryBarButtonItem release];
[blueSaveButton release];
[self gotoLocation];
}
But this has no effect at all on the button. So how do you manage to do this without "breaking" the default/inherited behavior of the navigationbar?
EDIT: The reason is that the button needs to be corporate branded, so default styles will not do.
BR
回答1:
If you want the button to be blue (like a Done button) and have the title "Save" you can use one of the built in bar button item types:
UIBarButtonItem *item = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(myAction:)] autorelease];
回答2:
Ok found the solution (not so good but it works) do this: 1: Implement the button from this tutorial: www.switchonthecode.com
This will override the default behavior of navigationbar.
2: Implement this in every view that needs the custom button: osmorphis.blogspot.com
BR
来源：https://stackoverflow.com/questions/3297999/how-do-you-change-color-image-on-the-default-backbarbuttonitem