[英]How do I turn an IObservable<IObservable<T>> into an IObservable<T>?
[英]How do I turn the following class into an IObservable?
我有以下課程
namespace TickRateEntity
{
public struct TickRateData
{
public double tickrate;
}
public class TickRate
{
private TickRateData tickRateData;
//etc
}
}
如何更改這些類,以便每 n 分鍾,TickRate 或 TickRateData 數據發布雙倍tickrate
?
假設您有一個帶有TickRate GetTickRate()
簽名的方法,那么它可以工作:
int n = 5;
IObservable<double> query =
from x in Observable.Interval(TimeSpan.FromMinutes(n))
let tickRate = GetTickRate()
select tickRate.tickRateData.tickrate;
IDisposable subscription = query.Subscribe(x => /* do something with `x` */);
否則,如果TickRate
是以其他方式生成的,我們需要知道如何回答這個問題。
假設您的tickRateData
以某種方式填充,那么您可以執行以下操作:
public class TickRate : IDisposable
{
private TickRateData tickRateData;
private readonly IDisposable _subscription;
public IObservable<double> Stream { get; }
public TickRate(double intervalInMinutes)
{
var stream = Observable.Interval(TimeSpan.FromMinutes(intervalInMinutes))
.Select(_ => tickRateData.tickrate)
.Publish();
_subscription = stream.Connect();
Stream = stream;
}
public void Dispose()
{
_subscription?.Dispose();
}
}
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