I am adding image in BackBarButtonItem of navigation bar, image gets in button but image is not scale to fill what would be the issue.
Here is the code i am using and it displays in following way.
UIImage *backImage = [UIImage imageNamed:@"back.png"];
UIBarButtonItem *newBackButton = [[UIBarButtonItem alloc] initWithImage:backImage style:UIBarButtonItemStylePlain target:self action:@selector(backAction)];
[self.navigationItem setBackBarButtonItem: newBackButton];
[newBackButton release];
[backImage release];

Actually it should look like, below image.

Thanks!
Try this :)!