Android Question [B4X] Treeview Structure with For Each

Alexander Stolte

Well-Known Member
Licensed User
Hey, this question is a general programming question.

My goal is a Treeview Structure.
I have the following Database Structure: id and parent_id
upload_2019-5-16_10-14-11.png

If parent_id = 0 Then it is a root item.

My considerations were a For Each loop

This is just pseudo code:
B4X:
For Each id in table

If parent_id = 0 then

add item to list

For Each parent_id In id

if id = parent_id then

add item to second level

end if

NExt

End if

Next
How would you solve such an assignment?
 
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