Android Question [SOLVED] How to check Object type?

techknight · Oct 26, 2018

Is it possible to determine what type of object is passed in an Object variable?

I am probably doing this wrong, but I have a subroutine that if successful, returns a map. If its not successful, it returns a Boolean of False.

I would like to check the item type without calling the subroutine twice. once to determine its not false, and yet again to get the data.

any ideas?

Sandman · Oct 26, 2018

GetType(Object)

techknight · Oct 26, 2018

I tried that, but I cant find a table anywhere what its return is supposed to be?

Because If GetType(M) = "Map" didnt work.

I guess I will have to log it, and do it that way, As long as it doesnt change.

stevel05 · Oct 26, 2018

Or if the only two types are Map (Which must be initialized) or Boolean then you can do

B4X:

If ReturnValue Is Map Then
        Log("Map")
    Else
        Log("Boolean")
    End If

Sandman · Oct 26, 2018

I can't imagine they would ever change, so build your own list by logging types you're interested in, and then use their values. Or do what stevel05 suggested, that might be cleaner for you.

techknight · Oct 26, 2018

Tried both suggestions, Both work fine. Steve's method is a little bit easier/cleaner yes, but I do have some custom types so the lookup table method might work better for me.

Anyways, thanks guys!

Android Question [SOLVED] How to check Object type?

techknight

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Sandman

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stevel05

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