如何在 iOS 中更改导航控制器的工具栏颜色？
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How to change the toolbar color of the Navigation Controller in iOS?
提问by aryaxt
I am trying to change the color of my navigation bar. The following rgb is for a dark red color, but my nav bar turns white after the following code.
我正在尝试更改导航栏的颜色。下面的 rgb 是深红色的，但是我的导航栏在下面的代码之后变成了白色。
navigationController.navigationBar.tintColor = [UIColor colorWithRed:117 green:4 blue:32 alpha:1];
回答by Oscar Gomez
回答by TommyG
Just do this:
只需这样做：
navigationController.navigationBar.tintColor = [UIColor colorWithRed:117/255.0f green:4/255.0f blue:32/255.0f alpha:1];
回答by fncap
You have to divide each value for 255. Try:
您必须将每个值除以 255。尝试：
[UIColor colorWithRed:117/255.0f green:4/255.0f blue:32/255.0f alpha:1]
回答by monzonj
I find that if you come from the web or from something like Photoshop, it is easier to work with Hexadecimal colors. You can use this macro for that:
我发现如果您来自网络或 Photoshop 之类的软件，使用十六进制颜色会更容易。你可以使用这个宏：
//RGB color macro
#define UIColorFromRGB(rgbValue) [UIColor \
colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \
blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
And use it like this:
并像这样使用它：
self.navigationBar.tintColor = UIColorFromRGB(0xd8dadf);
回答by broken_image
Ah, this is funny. The real answer is that .tintColor sets the color for the navigation controller's navigation Items (like a "Done" button).
啊，这很有趣。真正的答案是 .tintColor 为导航控制器的导航项（如“完成”按钮）设置颜色。
