Android Question File.ListFiles

[Indy]

Hi Folks,

I am really puzzled regarding the File.ListFiles method. For some unknow reason my code isn't working as intended. Having done the neccessary object initialisation, I perform the following command to check for an empty folder..

list1 = File.ListFiles(Main.SavePath)

I then evaluate the return as follows..

If list1.Size>0 Then
.....
.....
.....
End If

However, the code fails to detect the zero count and still executes the code within the If statement, which as a consequence cause an index out of range error (0 reference). I did a log(list1.Size) and even that counts 0, so why does the code still get executed?

Would appreciate any pointers because I'm out of ideas.

Thank you.

 

[Mahares]

This code works: Note that all variables are in the same main module.

Dim List1 As List
Dim Savepath As String=File.DirRootExternal & "/Playlists"  'in Gloabls of main module

List1.Initialize    'in Activity_create
List1 = File.ListFiles(Savepath)
If List1.Size > 0 Then
    Log("not empty")
Else
   Log("empty")
End If

 

[Indy]

Hi Mahares

Thanks for the example. I found what the issue was, which had nothing to do with the "Count". It was a label that I was updating that had nothing in it which caused the problem. I had to comment out almost the entire sub to find this bug. Got it fixed and all is working as expected. Thanks for your help.