我试图改变一个UIBarButtonItem的图像一旦按下,没有任何运气的各种方法。无法更改UIBarButtonItem的图像
// bookmarkButton is a property linked up in IB
-(IBAction)bookmarkButtonTapped:(id)sender
{
NSLog(@"this action triggers");
// attempt 1
UIBarButtonItem* aBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"bookmarkdelete.png"] style:UIBarButtonItemStylePlain target:self action:@selector(bookmarkButtonTapped:)];
bookmarkButton = aBarButtonItem;
[aBarButtonItem release];
// attempt 2
bookmarkButton.image = [UIImage imageNamed:@"bookmarkdelete.png"];
}
是否有另一种方法可以做到这一点?
bookmarkButton是的UIBarButtonItem在成立笔尖。 – cannyboy 2010-11-22 15:03:03