Android Question How to return two parameters using a resumable sub?

dennmtr · May 1, 2023

B4X:

[CODE=b4x]Public Sub MySub ' In Another Component
    Sleep(1000)
    CallSub3(Sender, "MySub_Complete", True, Null)
End Sub

Public Sub MySub2 ' In Current Component
    Dim SenderObject As Object = MySub
    Wait For (SenderObject) MySub_Complete (Success As Boolean, Result As Object)
    Log(Success)
End Sub

Public Sub MySub2
'Avoid MySub
'Avoid Wait For MySub_Complete(Success As Boolean, Result As Object)
Wait For (MySub) Complete (Success As Boolean, Result As Object)
End Sub[/CODE]

I want to avoid using callsub, but i dont know how to return more than one parameters as the example above!

Or something like this:

B4X:

    Dim SenderFilter As Object = SQL_.ExecQueryAsync("SQL", QueryString, Args)
    Wait For (SenderFilter) SQL_QueryComplete (Success As Boolean, Rs As ResultSet)

How SQL_.ExecQueryAsync Returns the two values without using component value that callsub needs?

This doesnt work even not fails:

B4X:

Public Sub MySubInAnotherComponent
    Sleep(1000)
    CallSub3(Sender, "MySubInAnotherComponent_Complete", True, Null)
End Sub

Public Sub MyCurrentSub
    Dim SenderObject As Object = MySubInAnotherComponent
    Wait For (SenderObject) MySubInAnotherComponent_Complete (Success As Boolean, Result As Object)
    Log(Success)
End Sub

dennmtr · May 2, 2023

agraham said:
Sorry - but I have no idea what you mean by that. I meant

B4X:

Public Sub ExecQueryAsync2(QueryString As String, Args As List) As ResumableSub Dim SenderFilter As Object = SQL_.ExecQueryAsync("SQL", QueryString, Args) Wait For (SenderFilter) SQL_QueryComplete (Success As Boolean, Rs As ResultSet) Dim Response As ResponseBuilder Response.Initialize Response.Success = Success Response.Data = Data.As(Object) Return Response End Sub

I'm not familiar with ResponseBuilder but as you cast it to Object in Sub Create I've cast it to Object in the assignment to Response.Data. That might not be needed depending upon the type expected.

Data variable does not exist in this example. Even if you mean Rs.As(Object) this is done automatically because Response.Data Property Is Type Object. It can be used for many reasons except from a RecordSet

agraham · May 2, 2023

dennmtr said:
Data variable does not exist in this example. Even if you mean Rs.As(Object) this is done automatically because Response.Data Property Is Type Object

Yes, A typo on my part. As I said I am not familiar with ResponseBuilder and already noted that the cast might not be necessary.

RichardN · May 8, 2023

Create a custom type.....

Android Question How to return two parameters using a resumable sub?

dennmtr

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dennmtr

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agraham

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RichardN

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Android Question How to return two parameters using a resumable sub?

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