Android Question List question[SOLVED]

[StoopKid8978]

I was wondering about iterations in lists. I read that "for each" is better than "for i", but I can't seem to grasp it completely. I a, specifically looking for a way to go through a list and get an item that is the first item on the list that is greater than a given value.. For example...

Dim x as int = 12
Dim mylist As List
mylist.Initialize
mylist.AddAll(Array As Int(5, 10, 15, 20, 25))

if x > mylist.get(i) then
"stop iterating and return that first value"

Or maybe it would be better to get the ceil that's less than x?
I am hoping this is explained well enough. I want it to ultimately subtract 10 from 12 and give the remainder maybe using mod

 

[Erel]

For Each is not exactly better than the regular For loop. Use the one that is easier for you.

Sub FindFirstGreaterValue (List As List, Value As Int) As Int
    For Each v As Int In List
        If v > Value Then Return v
    Next
    Return -1
End Sub

Dim i As Int = FindFirstGreaterValue(Array As Int(5, 10, 15, 20, 25), 12)
Log(i)

 

[StoopKid8978]

That worked perfectly. Thank you so much Erel

 

[StoopKid8978]

i'm going to write a separate question about this in a different thread, but i didn't know if you could maybe explain a little further...If I wanted it to do the same thing if x = i how would that look?
Would i different subs if I wanted the both to happen within my app? or could they be combined into the same sub? I guess a better question would be where can I find the documentation that explain what exactly each part is in your solution so I could implement as I see fit?

 

[Erel]

I guess a better question would be where can I find the documentation that explain what exactly each part is in your solution so I could implement as I see fit?

Start with the guides or the video tutorials: https://www.b4x.com/learn.html

There is nothing special in this code.