何らかの理由で、ナビゲーション バーの右ボタンが右から 16px の位置にあります。余白を小さくしたい。それを行う適切な方法は何ですか?
self.btnDone = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *btnImgDone = [UIImage imageNamed:@"btn_small_default.png"];
self.btnDone.titleLabel.font = [UIFont fontWithName:@"HelveticaNeue-Bold" size:15.0];
[self.btnDone setTitle:@"Done" forState:UIControlStateNormal];
[self.btnDone setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[self.btnDone setTitleShadowColor:[UIColor colorWithWhite:0 alpha:.2f] forState:UIControlStateNormal];
self.btnDone.titleLabel.shadowOffset = (CGSize){0,-1};
[self.btnDone setBackgroundImage:btnImgDone forState:UIControlStateNormal];
[self.btnDone setBackgroundImage:[UIImage imageNamed:@"btn_small_active.png"] forState:UIControlStateHighlighted];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:self.btnDone];