有没有办法在文件中存储自定义颜色并从iOS中的代码访问它们？ [英] Is there a way to store custom colors in a file and access them from code in iOS?

问题描述

我是iOS新手，但我有一些Android编程经验。我记得在Android中你可以在你可以在代码中使用的 colors.xml 文件中定义一组自定义颜色，因此，每次它都不需要以编程方式定义新颜色必须在某处应用。

I am an iOS newbie but I have some experience programming for Android. I recall that in Android you could define a set of custom colors in a colors.xml file that you could use in your code, and therefore, there was no need to define a new color programmatically each time it had to be applied somewhere.

我的问题是：iOS中是否存在类似的机制？我在整个互联网上搜索了一种在某个文件中创建自定义颜色的方法，并在我的iOS应用程序中以编程方式使用它们但却一无所获。

My question is: does a similar mechanism exist in iOS? I have searched throughout the Internet for a way to create custom colors once in some file and use them programmatically in my iOS app but have found nothing.

提前致谢。

推荐答案

正如vokilam建议的那样，它是总是很好用 UIColor 创建类别，并通过类别中的类方法添加自己的自定义颜色。在单个班级中有一个颜色轨道非常方便和容易。类似于：

As vokilam suggested, it is always good to create a Category using UIColor and adding your own custom colors through class methods inside the category. It is quite handy and easy to have a track of colors inside a single class. Something like:

在Xcode中，文件 - >新建 - >新建--->文件... Cocoa Touch - > Objective-C类别 - >下一步 - >在类别列表中选择UIColor - >为类别命名 - >下一步 - >创建

In Xcode, File -> New --> New ---> File... Cocoa Touch -> Objective-C Category -> Next -> Select UIColor in "Category on" list --> Give a name for the category --> Next --> Create

这将为您提供.h和.m文件。 ..在你的.h文件中，添加一个自定义颜色方法，如

This gives you .h and .m file... In your .h file, add a custom color method like

+(UIColor *)customLightGreenColor;

在.m文件中，您可以实现类似的方法（您可以设置不同的选项）你在这里的颜色）：

And in the .m file, you can implement the method something like (You have different options to set your colors here):

+(UIColor *)customlightGreenColor
{
    UIColor *lightGreenColor = [UIColor colorWithRed:0.5 green:0.87 blue:0.0 alpha:1.0];
    return lightGreenColor;
}

同样，您可以在类别中添加任意数量的颜色并在其中使用你的申请。希望这能让你有所了解......

Likewise, you can add any number of colors in your category and use it in your application. Hope this gives you a heads up...

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