[Wish] CallSub4

Dominex said:

It would be very very handy to have also CallSub4 because it is be essential for passing data of touch events (Action, X, Y).

B4X:

CallSub4 (Component As Object, Sub As String, Argument1 As Object, Argument2 As Object, Argument3 As Object) As String

CallSub4("Main","Activity_Touch",Action,X,Y)

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Informatix said:

Use my library CallSubExtended provided with ULV. You're not limited by the number of arguments.

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Dominex said:

Very interesting thank you, but I find exactly where search this ULV library? :sign0188:

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Informatix said:

Sorry, I misread a column in my licence table. You're not an ULV customer. :signOops:

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Eduard said:

As a workaround you could make a class than can hold 4 arguments

You can then pass this class (with callsub2).

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mc73 said:

As a workaround, you can send a combined string and regex.split it to get the arguments.

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Penko said:

I made a small example for you. I hope I have correctly understood your problem.

What I am demonstrating is the use of classes as data containers. This ensures you flexibility by adding more items to the class in the feature.

You will see two buttons - the first uses CallSub2 and calls a method within the very same Activity1.

The second button benefits from the CallSubDelayed2 command and opens Activity2 by calling its method customLoader2.

Both return the same message box information.

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Eduard said:

B4X:

'Class module ArgumentsContainer
Sub Class_Globals
   Public argument1 As Object
   Public argument2 As Object
   Public argument3 As Object
   Public argument4 As Object
   Public argument5 As Object
End Sub

B4X:

Dim argc as ArgumentsContainer
argc.initialize
argc.argument1="one"
argc.argument2="two"
argc.argument3="three"
argc.argument4="four"
callsub2(Main,"function_name",argc)

note that any of the argments kan be an argumentscontainer as well....

the example of Penko is exactly what I mean.

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Dominex said:

Thank you for your example, but it is not what I need. I need a way to call a sub with three arguments, I want called "Activity_Touch".

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Sub function_name(argc as argumentscontainer)
 activity_touch(argc.argument1,arc.argument2,argc.argument3,argc.argument4)
end sub

Eduard said:

use an extra sub

B4X:

Sub function_name(argc as argumentscontainer)
 activity_touch(argc.argument1,arc.argument2,argc.argument3,argc.argument4)
end sub

But I see your point...CallSub4 would benefit in your case

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