通过布尔值设置LinearLayout背景颜色

我正在尝试使用MvxValueConverter根据布尔值设置LinearLayout的背景颜色.转换器看起来像这样:

public class BackgroundColorValueConverter : MvxValueConverter
{
    private static readonly MvxColor TrueBGColor = new MvxColor(0xDB, 0xFF, 0xCE);
    private static readonly MvxColor FalseBGColor = new MvxColor(0xD6, 0xF6, 0xFF);

    protected override MvxColor Convert(bool value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return value ? TrueBGColor : FalseBGColor;
    }
}

在我的AXML布局中,我有以下代码:

我收到以下错误:

Failed to create target binding for binding BackgroundColor for MyBooleanValue

完整的错误跟踪如下:

MvxBind:Error:  8.58 Problem seen during binding execution for binding BackgroundColor for MyBooleanValue - problem InvalidCastException: Cannot cast from source type to destination type.
03-05 14:18:46.434 I/mono-stdout(16474): MvxBind:Error:  8.58 Problem seen during binding execution for binding BackgroundColor for MyBooleanValue - problem InvalidCastException: Cannot cast from source type to destination type.
03-05 14:18:46.434 I/mono-stdout(16474):      at Cirrious.MvvmCross.Plugins.Color.Droid.BindingTargets.MvxViewBackgroundColorBinding.SetValueImpl (System.Object target, System.Object value) [0x00000] in :0 
      at Cirrious.MvvmCross.Plugins.Color.Droid.BindingTargets.MvxViewBackgroundColorBinding.SetValueImpl (System.Object target, System.Object value) [0x00000] in :0 
  at Cirrious.MvvmCross.Binding.Bindings.Target.MvxConvertingTargetBinding.SetValue (System.Object value) [0x00000] in :0 
03-05 14:18:46.434 I/mono-stdout(16474):   at Cirrious.MvvmCross.Binding.Bindings.Target.MvxConvertingTargetBinding.SetValue (System.Object value) [0x00000] in :0 
  at Cirrious.MvvmCross.Binding.Bindings.MvxFullBinding.UpdateTargetFromSource (System.Object value) [0x00000] in :0 

所以,老实说我不确定从哪里开始.我正在尝试的是什么？我使用正确的MvvmCross转换器吗？任何指针都将非常感激.

更新:

将转换器更改为:

public class BackgroundColorValueConverter : MvxColorValueConverter
{
    private static readonly MvxColor TrueBGColor = new MvxColor(0xDB, 0xFF, 0xCE);
    private static readonly MvxColor FalseBGColor = new MvxColor(0xD6, 0xF6, 0xFF);

    protected override MvxColor Convert(object value, object parameter, System.Globalization.CultureInfo culture)
    {
        return (bool)value ? TrueBGColor : FalseBGColor;
    }
}

......解决了我的问题.我也有TextColor MyBooleanValue, Converter=TextColor我的LinearLayout,其功能类似于BackgroundColorValueConverter,我得到了关于未能创建目标绑定的相同错误.

一旦我将AXML更改为:

......一切按预期工作.对于任何人谁发生在未来过这个跌倒:不要试图绑定TextColor上LinearLayout,因为它不喜欢的工作!