Mvvmcross 3.5绑定显示交战

Question

将我的项目更新为Unified API和MVVM Cross 3.5 stable之后，我在控制台中收到以下warring消息，表示所有按钮绑定...

我这样绑定。

try {
 this.AddBindings(
  new Dictionary < object, string > () {

   //all the command controls - such as buttons
   {
    btnXmit,
    "TouchUpInside cmdXmitClicked"
   }, {
    btnCancel,
    "TouchUpInside cmdBack"
   },

  });
} catch (Exception error) {

}

at

  

Cirrious.CrossCore.WeakSubscription.MvxWeakEventSubscription 2[System.Windows.Input.ICommand,System.EventArgs]..ctor (ICommand source, System.Reflection.EventInfo sourceEventInfo, System.EventHandler 1 targetEventHandler）[0x00028] /Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/CrossCore/Cirrious.CrossCore/WeakSubscription/MvxWeakEventSubscription的.cs：52     在/Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/CrossCore中的Cirrious.CrossCore.WeakSubscription.MvxCanExecuteChangedEventSubscription..ctor（ICommand source，System.EventHandler 1 eventHandler) [0x00000] in /Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/CrossCore/Cirrious.CrossCore/WeakSubscription/MvxCanExecuteChangedEventSubscription.cs:21 at Cirrious.CrossCore.WeakSubscription.MvxWeakSubscriptionExtensionMethods.WeakSubscribe (ICommand source, System.EventHandler 1 eventHandler）[0x00003] /Cirrious.CrossCore/WeakSubscription/MvxWeakSubscriptionExtensionMethods.cs:68     在Cirrious.MvvmCross.Binding.Touch.Target.MvxUIControlTouchUpInsideTargetBinding.SetValueImpl（System.Object target，System.Object value）[0x00045] in /Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/Cirrious/ Cirrious.MvvmCross.Binding.Touch /目标/ MvxUIControlTouchUpInsideTargetBinding.cs：74     在/Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/Cirrious/Cirrious.MvvmCross.Binding中的Cirrious.MvvmCross.Bindings.Bindingget.Marx.MvxConvertingTargetBinding.SetValue（System.Object value）[0x000bd] /Bindings/Target/MvxConvertingTargetBinding.cs:64     在Cirrious.MvvmCross.Bindings.Bindings.MvxFullBinding.UpdateTargetFromSource（System.Object value）[0x00036] in /Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/Cirrious/Cirrious.MvvmCross.Binding/Bindings /MvxFullBinding.cs:162   2015-02-16 17：48：14.433 RemoteInspectioniOS [3506：119564] MvxBind：错误：212.37绑定执行绑定TouchUpInside for cmdBack期间出现问题 - 问题ArgumentNullException：MvxWeakEventSubscription中缺少源事件信息   参数名称：sourceEventInfo         在Cirrious.CrossCore.WeakSubscription.MvxWeakEventSubscription 2[System.Windows.Input.ICommand,System.EventArgs]..ctor (ICommand source, System.Reflection.EventInfo sourceEventInfo, System.EventHandler 1 targetEventHandler）[0x00028] /Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/CrossCore/Cirrious.CrossCore/WeakSubscription/MvxWeakEventSubscription.cs ：52     在/Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/CrossCore中的Cirrious.CrossCore.WeakSubscription.MvxCanExecuteChangedEventSubscription..ctor（ICommand source，System.EventHandler 1 eventHandler) [0x00000] in /Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/CrossCore/Cirrious.CrossCore/WeakSubscription/MvxCanExecuteChangedEventSubscription.cs:21 at Cirrious.CrossCore.WeakSubscription.MvxWeakSubscriptionExtensionMethods.WeakSubscribe (ICommand source, System.EventHandler 1 eventHandler）[0x00003] /Cirrious.CrossCore/WeakSubscription/MvxWeakSubscriptionExtensionMethods.cs:68     在Cirrious.MvvmCross.Binding.Touch.Target.MvxUIControlTouchUpInsideTargetBinding.SetValueImpl（System.Object target，System.Object value）[0x00045] in /Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/Cirrious/ Cirrious.MvvmCross.Binding.Touch /目标/ MvxUIControlTouchUpInsideTargetBinding.cs：74     在/Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/Cirrious/Cirrious.MvvmCross.Binding中的Cirrious.MvvmCross.Bindings.Bindingget.Marx.MvxConvertingTargetBinding.SetValue（System.Object value）[0x000bd] /Bindings/Target/MvxConvertingTargetBinding.cs:64     在Cirrious.MvvmCross.Bindings.Bindings.MvxFullBinding.UpdateTargetFromSource（System.Object value）[0x00036] in /Volumes/WORKSPACE/Workspace/V3.5/framework/framework/MvvmCross-3/Cirrious/Cirrious.MvvmCross.Binding/Bindings /MvxFullBinding.cs:162

Answer 1

您需要使用以下代码创建LinkerPleaseInclude.cs文件：

public class LinkerPleaseInclude
{
    public void Include(ICommand command)
    {
        command.CanExecuteChanged += (s, e) => { if (command.CanExecute(null)) command.Execute(null); };
    }
}

编辑（根据我的评论）：