Android Question two lists and a searchview - IndexOf (Solved)

[trepdas]

Hello good people
very noob questions. thank you for your help.

I need to do a simple task.

I have 2 lists.

list1 and list2.

I created two string arrays from the lists.
Question(6000) from list1
and
Answer(6000) from list2

(each list has 6000 items.)

searchview is populating list1.

with a searchview , user picks an item from list1
I need to fetch as a result the item that is located in list2 in the same position.

i.e

user picks Question(3420) and Answer(3420) will be displayed.

should be straight forward and easy.

my questions :
1.
what is the best way (fastest) to achieve this ?

I tried something pretty stupid to test it and it works but it takes a long time to achieve it :

Sub Sview_ItemClick(Value As String)
    
    For tmpi=1 To 6000
        If Question(tmpi)=Value Then
           AnyString=Answer(tmpi)
            Exit
        End If
    Next
End Sub

can someone help with a smarter and faster solution?


question2 :
while searchview is building index , user has to wait a few secs.
is there a workaround for this ?

Thanks

 

[DonManfred]

Use IndexOf to find the index of the String in the Questions.
Once you know the index you can use it to get the right Answer without a full loop.

something like

Sub Sview_ItemClick(Value As String)
    Dim index As Int = questions.IndexOf(Value)
    Dim answer As String = answers.Get(index)
end

 

[DonManfred]

question2 :
while searchview is building index , user has to wait a few secs.
is there a workaround for this ?

Maybe this helps...
https://www.b4x.com/android/forum/t...ith-searchview-b4xserializator.61872/#content

 

[trepdas]

fantastic.
idexof is what I needed...

and thank you for your quick reply.

as for the second question...
is there a way to let searchview build index in the background somehow without freezing the whole thing?

 

[DonManfred]

as for the second question...
is there a way to let searchview build index in the background somehow without freezing the whole thing?

???

 

[trepdas]

Thank you DonManfred.
you were faster than me...


got the second answer too.

 

[DonManfred]

you were faster than me...

You did see my answer as you liked it.

So i was wondering why you ask the question again. Knowing you did see my 2nd answer.

 

[trepdas]

LOL tech issues...
or age issues...
depends how I'll define it...

THANKS

 

[DonManfred]

or age issues...

You Male, 49
Me Male, 49

 

[trepdas]

You Male, 49
Me Male, 49

LOL
You Male, 49, System OK
Me Male, 49, System Error. Out of Memory.