问题描述
我正在尝试在导航控制器中设置后退按钮的色调颜色，但没有任何效果。我试过了
I am trying to set the tint color of the back button within a navigation controller, but nothing is working. I have tried
[self.navigationController.backBarButtonItem setTintColor:myColor];
//myColor was previously set
但它保持默认色调
推荐答案
我认为barButtonItem是只读的。 （我对此不太确定，如果我错了，有人会纠正我）
I believe barButtonItem is read-only. (I'm not too sure about this, someone correct me if I'm wrong)
要为这些按钮添加色彩，这就是我要做的：
To give a tint colour to these buttons, this is what I would do:
在您的App Delegate中，添加以下代码行：
In your App Delegate, add these lines of code:
UIBarButtonItem *barButtonAppearance = [UIBarButtonItem appearance];
[barButtonAppearance setTintColor:[UIColor redColor]]; // Change to your colour
第一行设置外观代理，所以我相信这也有效，如果你喜欢更少的代码：
The first line sets an appearance proxy, so I believe this works too, if you like less code:
[[UIBarButtonItem appearance] setTintColor:[UIColor redColor]];
我希望这适合你！ （这会更改UIBarButtonItem的所有实例）
I hope this works for you! (This changes all instances of UIBarButtonItem)
这篇关于iPhone设置背栏按钮项目的色调颜色的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！