how to display the go back style UIBarButtonItem programmatically - iphone

Question

When One of my app navigate from one controller to another, the 'go back' UIBarButtonItem disappear, so I wrote codes:
UIBarButtonItem *barButton1 = [[UIBarButtonItem alloc] initWithTitle:#""
style:UIBarButtonItemStyleDone
target:self
action:#selector(barButtonItemPressed:)];
self.navigationItem.leftBarButtonItem = barButton1;
[barButton1 setImage:[UIImage imageNamed:#"fdj.png"]];
[barButton1 release];
It works, but it display as
but I prefer the style (like standard go back barbuttonitem
Is it possible?
Welcome any comment

Answer 1

You should edit the navigationItem of the parent view controller:
You can place this in the viewDidLoad of the previous view controller:
self.navigationItem.backBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:nil action:nil] autorelease];
self.navigationItem.backBarButtonItem.image = [UIImage imageNamed:#"fdj.png"];

Answer 2

here is the code how you can do this
UIButton *btnBack = [UIButton buttonWithType:UIButtonTypeCustom];
btnBack.frame = CGRectMake(0, 0, 55, 36);
[btnBack setImage:[UIImage imageNamed:#"btnBack"] forState:UIControlStateNormal];
[btnBack setImage:[UIImage imageNamed:#"btnBack"] forState:UIControlStateSelected];
[btnBack addTarget:self action:#selector(onClickBack) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *item4 = [[UIBarButtonItem alloc] initWithCustomView:btnBack];
self.navigationItem.leftBarButtonItem = item4;
just make image and set it in uibutton, it's simple way to do this.
you can set any image you want.
hope this may help you what you want.

Answer 3

In the parent view controller's init method, set
self.navigationItem.backBarButtonItem = [[[UIBarButtonItem alloc] initWithImage: [UIimage imageNamed: #"fdj.png"]
style: UIBarButtonItemStyleBordered
target: nil
action: nil] autorelease];

Answer 4

This is what I'm using in an older project of mine (and yes, I know that stretchableImageWithLeftCapWidth is deprecated).
#implementation UIViewController (UIView_ExtenderClass) // this is a category, obviously
...
-(void)setLeftButton:(id)theTarget navItem:(UINavigationItem *)myNavItem action:(SEL)myAction title:(NSString *)myTitle;
{
CGSize titleWidth = [myTitle sizeWithFont:[UIFont boldSystemFontOfSize:14.0]];
UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, titleWidth.width + 20, 32)];
[button setTitle: [NSString stringWithFormat:#" %#", myTitle] forState:UIControlStateNormal];
button.titleLabel.font = [UIFont boldSystemFontOfSize:14.0];
[button addTarget:theTarget action:myAction forControlEvents:UIControlEventTouchUpInside];
UIImage *imgBack = [UIImage imageNamed:#"32_left_nav_bar.png"];
UIImage *imgBackStretched = [imgBack stretchableImageWithLeftCapWidth:15 topCapHeight:0];
UIImage *imgBackSelected = [UIImage imageNamed:#"32_left_nav_bar_selected.png"];
UIImage *imgBackSelectedStretched = [imgBackSelected stretchableImageWithLeftCapWidth:15 topCapHeight:0];
[button setBackgroundImage:imgBackStretched forState:UIControlStateNormal];
[button setBackgroundImage:imgBackSelectedStretched forState:UIControlStateHighlighted];
UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithCustomView:button];
[buttonItem setTarget:theTarget];
myNavItem.leftBarButtonItem = nil;
myNavItem.leftBarButtonItem = buttonItem;
[imgBack release];
[imgBackSelected release];
[button release];
[buttonItem release];
}
Call it in the viewDidLoad of the second controller, like this:
[self setLeftButton:self navItem:self.navigationItem action:#selector(yourActionHere) title:#"Back"]
The image I'm using is here: http://i49.tinypic.com/6qfzfs.png