Backbarbuttonitem letterpress effect
问题 How can I recreate the letterpress-like effect applied to the backbarbuttonitem in the notes app in ios 7? I tried the following: NSShadow *textShadow = [[NSShadow alloc] init]; textShadow.shadowOffset = CGSizeMake(0.0, -1.0); textShadow.shadowColor = [UIColor blackColor]; NSAttributedString *attributedTitle = [[NSAttributedString alloc] initWithString:@"Back" attributes:@{NSForegroundColorAttributeName : [UIColor orangeColor], NSShadowAttributeName : textShadow}]; self.navigationItem