ios - UIBarButtonItem 不显示禁用状态 titleTextAttributes

Question

我正在尝试设置禁用 textAttributes在 UIBarButtonItem在 UIToolbar .

我像这样创建我的项目:

NSDictionary *enabledAttrs  =  @{ NSFontAttributeName               : font,
                                  NSForegroundColorAttributeName    : color };

NSDictionary *disabledAttrs =  @{ NSFontAttributeName               : font,
                                  NSForegroundColorAttributeName    : [UIColor grayColor] };

[item setTitleTextAttributes:enabledAttrs forState:UIControlStateNormal];
[item setTitleTextAttributes:disabledAttrs forState:UIControlStateDisabled];

但是，当我设置 item.enabled = NO , 该按钮被禁用(它不会触发其操作)但它不遵守其 titleTextAttributes ——它仍然以正常状态出现。为什么？

Answer 1

创建 UIButton 并用 UIBarbutton 包装，我认为它应该可以工作。

UIButton *uiButton = [[UIButton alloc] init];
[uiButton setTitleColor: color1 forState: UIControlStateNormal];
[uiButton setTitleColor: color2 forState: UIControlStateDisabled];

UIBarButtonItem *uiBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:uiButton];