public IObservable <Unit> Connect()
{
return(Observable.Create <Unit>(o =>
{
InAppBillingServiceConnection.OnConnectedDelegate connectedDelegate = () =>
{
o.OnNext(Unit.Default);
o.OnCompleted();
};
this.serviceConnection.OnConnected += connectedDelegate;
this.serviceConnection.Connect();
return () => this.serviceConnection.OnConnected -= connectedDelegate;
}));
}
/// <summary>
/// Connects to the billing service.
///
/// Call this method before making any other requests.
/// </summary>
/// <exception cref="InAppBillingException">
/// (asynchronous) The connection to the billing service couldn't be established.
/// </exception>
public Task Connect()
{
return(Observable.Create <Unit>(o =>
{
if (this.serviceConnection.Connected)
{
o.OnNext(Unit.Default);
o.OnCompleted();
return () => { };
}
InAppBillingServiceConnection.OnConnectedDelegate connectedDelegate = () =>
{
o.OnNext(Unit.Default);
o.OnCompleted();
};
InAppBillingServiceConnection.OnInAppBillingErrorDelegate errorDelegate = (error, message) =>
{
string realMessage = $"{message}: {error}";
o.OnError(new InAppBillingException(realMessage));
};
this.serviceConnection.OnConnected += connectedDelegate;
this.serviceConnection.OnInAppBillingError += errorDelegate;
this.serviceConnection.Connect();
return () =>
{
this.serviceConnection.OnConnected -= connectedDelegate;
this.serviceConnection.OnInAppBillingError -= errorDelegate;
};
}).ToTask());
}