CODEWITHSUNDEEP
c#xamlxamarinxamarin.forms
Snake Eyes
Snake Eyes

Reputation: 16764

Identifier expected in a xaml ResourceDictionary for theming purpose in Xamarin forms

I created two xamls (I created as ContentPage) one for Light theme and another for Dark theme (for iOS)

The LightTheme.xaml looks like:

<?xml version="1.0" encoding="UTF-8"?>
<ResourceDictionary xmlns="http://xamarin.com/schemas/2014/forms"
                    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
                    x:Class="LightTheme"/>

and LightTheme.xaml.cs

using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace MyApp.Forms
{
  [XamlCompilation(XamlCompilationOptions.Compile)]
  public partial class LightTheme : ResourceDictionary
  {
  }
}

Similar for DarkTheme.xaml(.cs).

In App.xaml.cs I put

public static void ApplyTheme()
{
  if (AppInfo.RequestedTheme == AppTheme.Dark)
  {
    App.Current.Resources = new DarkTheme();
  }
  else
  {
    App.Current.Resources = new LightTheme();
  }
}

and App.xaml

...
<ResourceDictionary Source="LightTheme.xaml">
  <local:AppResource x:Key="AppResource"></local:AppResource>

  <OnPlatform x:Key="validMargin" x:TypeArguments="Thickness"  >
    <On Platform="UWP" Value="0,-5,0,0"/>
  </OnPlatform>


  <!--The Colors-->
  <Color x:Key="DarkPrimary">#403152</Color>
  <Color x:Key="Primary">#564266</Color>

 ...

When build solution, I got errors

enter image description here

How to fix it ?

Upvotes: 1

Views: 245

Answers (1)

ColeX
ColeX

Reputation: 14475

Check the scheme x:Class in LightTheme.xaml , it should be namespace + class name ,modify as below 

x:Class="Namespace.LightTheme"

Upvotes: 1

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