Xamarin.Forms Set Default Button/Background Color

Question

Is there any way to globally configure styles for elements/pages in Xamarin.Forms .

Currently I have a Helpers.Colors class and can set the properties individually on each button and on the master/detail page. But it would be nice to have one place to configure it. Mainly I want to move away from the stock dark gradient that android has.

Answer 1

As of now (1.2.3), there's no built-in styles in Xamarin.Forms. You can achieve styling by either:

• subclassing

  you can eg define your own Button, in which you set the default you like:

   public class MyButton : Button { public MyButton () { BackgroundColor = Color.Pink; } } 

  and then use MyButton everywhere you want a themed button.

• creating an extension method

  if subclassing si not possible for you, the cleanest solution is to write an extension method doing that for you:

   public static void SetStyle (this Button button) { button.BackgroundColor = Color.Pink; } 

  and you can use it this way:

   var button = new Button(); button.SetStyle (); 

Answer 2

另一种可能是为此使用本机平台功能，在IOS上可以使用Apperance API，在Android上可以使用Syles和Themes。

Answer 3

Although there's no built-in Style in Xamarin.Forms , I implemented a quick one back in June to answer this StackOverflow question: Is there any way to separate the styling from my XAML in Xamarin.Forms .

The code is in the answer: https://stackoverflow.com/a/24430820/1063783

It's not a complete Style implementation as one would want, but it surely fits your needs.

Answer 4

Now with 1.3 you can use styles very much like you know it from WPF. Check out this guide for details.