Rx：Xamarin.Droid 项目中的限制订阅会从 Reactive.Stubs 中抛出缺少字段"忽略"异常

Question

我已经调查这个Rx问题好几天了，一直画空白，所以希望这可能会对某人响起。当没有节流时，相同的订阅可以正常工作，但是一旦添加了节流(如下所示)，就会抛出异常。完全复制。知道"忽略"是什么吗?为什么找不到它?

_locationManager.LocationChanged.Throttle (TimeSpan.FromSeconds (10)).Subscribe (LocationHandle);
{System.MissingFieldException: Field 'System.Reactive.Stubs`1[System.Object].Ignore' not found.
  at System.Reactive.Disposables.CompositeDisposable.Dispose () [0x00000] in <filename unknown>:0 
  at System.Reactive.Disposables.SingleAssignmentDisposable.Dispose () [0x00000] in <filename unknown>:0 
  at System.Reactive.Disposables.SerialDisposable.set_Disposable (IDisposable value) [0x00000] in <filename unknown>:0 
  at System.Reactive.Linq.Observαble.Throttle`1+_[Android.Locations.Location].OnNext (Android.Locations.Location value) [0x00000] in <filename unknown>:0 
  at System.Reactive.Subjects.Subject`1[Android.Locations.Location].OnNext (Android.Locations.Location value) [0x00000] in <filename unknown>:0 
  at rdf.LocationManager.RegisterNewLocation (Android.Locations.Location location) [0x00009] in /Users/xxx/rdf/Rdf/Location/RdfLocationManager.cs:61 }
    Static members: 
    Non-public members: 
    Data: Count=0
    HResult: -2146233071
    HelpLink: (null)
    InnerException: (null)
    Message (System.Exception): "Cannot access a class member."
    Message (System.MissingMemberException): "Member System.Reactive.Stubs`1[System.Object].Ignore not found."
    Message (System.MissingFieldException): "Field 'System.Reactive.Stubs`1[System.Object].Ignore' not found."
    Source: "System.Reactive.Core"
    StackTrace: "  at System.Reactive.Disposables.CompositeDisposable.Dispose () [0x00000] in <filename unknown>:0 n  at System.Reactive.Disposables.SingleAssignmentDisposable.Dispose () [0x00000] in <filename unknown>:0 n  at System.Reactive.Disposables.SerialDisposable.set_Disposable (IDisposable value) [0x00000] in <filename unknown>:0 n  at System.Reactive.Linq.Observαble.Throttle`1+_[Android.Locations.Location].OnNext (Android.Locations.Location value) [0x00000] in <filename unknown>:0 n  at System.Reactive.Subjects.Subject`1[Android.Locations.Location].OnNext (Android.Locations.Location value) [0x00000] in <filename unknown>:0

Answer 1

原来Observable.Throttle()不是我正在寻找的方法。Throttle()忽略后续消息，直到经过的时间过期。这与Observable.Sample()有微妙的不同，后者正是我所寻找的，将快速序列采样为较慢的序列。以我的方式使用Throttle()的效果是我的序列从未开始。