【发布时间】:2017-11-24 18:50:27
【问题描述】:
尝试使用 Xamarin.Android + ReactiveUI 调用 WireUpControls() 时出现以下异常。
System.TypeInitializationException:类型初始化器 'ReactiveUI.ControlFetcherMixin' 抛出异常
我已经检查了以下内容,但仍然遇到异常。
- https://reactiveui.net/docs/handbook/data-binding/xamarin-android/wire-up-controls 中定义的控件的命名约定
- 通过更改解决策略。
我的布局中只有一个 ListView。
主要活动:
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.Main);
this.WireUpControls(ControlFetcherMixin.ResolveStrategy.ExplicitOptIn);
SetupUserInterface();
this.OneWayBind(ViewModel, x => x.OutletListing, x => x.OutletListItems).DisposeWith(SubscriptionDisposables);
}
更新: 发现内部异常
+ ex {System.TypeInitializationException: The type initializer for 'ReactiveUI.ControlFetcherMixin' threw an exception. ---> System.InvalidOperationException: You're using multiple resource ID's with the same name but with different casings which isn't allowed for WireUpControls: { Image = image }, { Text = text }, { Text2 = text2 } ---> System.ArgumentException: An item with the same key has already been added. Key: image
at System.Collections.Generic.Dictionary`2[TKey,TValue].TryInsert (TKey key, TValue value, System.Collections.Generic.InsertionBehavior behavior) [0x000bb] in <896ad1d315ca4ba7b117efb8dacaedcf>:0
at System.Collections.Generic.Dictionary`2[TKey,TValue].Add (TKey key, TValue value) [0x00000] in <896ad1d315ca4ba7b117efb8dacaedcf>:0
at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] keySelector, System.Func`2[T,TResult] elementSelector, System.Collections.Generic.IEqualityComparer`1[T] comparer) [0x0009e] in <b5bd9d990a0b4733885e90ca5ec6c0fb>:0
at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] keySelector, System.Func`2[T,TResult] elementSelector) [0x00000] in <b5bd9d990a0b4733885e90ca5ec6c0fb>:0
at ReactiveUI.ControlFetcherMixin..cctor () [0x00048] in C:\projects\reactiveui\src\ReactiveUI\Android\ControlFetcherMixin.cs:34
--- End of inner exception stack trace ---
at ReactiveUI.ControlFetcherMixin..cctor () [0x0010c] in C:\projects\reactiveui\src\ReactiveUI\Android\ControlFetcherMixin.cs:45
--- End of inner exception stack trace ---
【问题讨论】:
-
我通过使 Forms PCL 具有一些共享类并修改 Xamarin.Android 目标项目,将 Xamarin.Forms 项目转换为 Xamarin.Android。但我在 Xamarin.Android 项目中仍然有 Xamarin.Forms 引用。会有影响吗?
标签: xamarin.android reactiveui