B4J Question Items from Javaobject in Log but not in Listview

[Sifu]

Hello,

The below code is checking files in a selected folder and uses the Java code I found here in the forum.
Why do I see the JavaObject contents as Items in the Log but not in the Listview?

Perhaps I'm doing something wrong, could someone point me how to fix this?

Sub GetTheFolderContents (fldr As String)
    'Log("fldr=" & fldr)
    Dim folders As List
    folders.Initialize
    folders.Add(fldr)
    fList.Initialize
   
    Dim JO As JavaObject = Me
    Dim FilePath As String
   
    Do While folders.Size > 0
        fldr = folders.Get(0)
        folders.RemoveAt(0)
        Label5TotalNrFiles.Text = fList.Size
        Sleep(0)
        Dim entries As List = File.ListFiles(fldr)
        If entries.IsInitialized Then
            For Each x As String In entries
                If File.IsDirectory(fldr, x) Then
                    folders.Add(File.Combine(fldr, x)) ' Found a subfolder
                Else
                    FilePath = (fldr & "\" & x)
                    JO.RunMethod("FileDetails",Array(FilePath))
                    'Log("FileDetails: " & Array(FilePath))
                  
                    'try to get each item from returned javaobject array
                    Dim myArray(4) As String
                    myArray = Array As String(FilePath)

                    'For i = 0 To myArray.Length - 1
                    '    Dim currentItem As String = myArray(i)
                    '    Dim itemNumber As Int = i + 1 ' Adding 1 to get the actual item number (1-based index)
                    '    Log("Item number: " & itemNumber & ", Item: " & currentItem)
                    '    ListView1.Items.Add("Item number: " & itemNumber & ", Item: " & currentItem)
                    'Next
                   
                    For Each item As String In myArray
                        ' Do something with the current item, for example, print it:
                    ListView1.Items.Add("Item: " & item)
                        Log("Item: " & item)
                    Next
                   
                End If
            Next
        End If
    Loop
End Sub

#if java
import java.io.File;
import java.io.IOException;
import java.text.ParseException;
import java.util.Date;
    public static void FileDetails(String filePath)    {
        File file = new File(filePath); //with \ escape pattern for backslashes
        System.out.println(file.getAbsolutePath());
        System.out.println(file.getName());
        System.out.println(file.length()); //Size
        System.out.println(new Date(file.lastModified()));
        //System.out.println(file.getAbsolutePath() + "," + file.getName() + "," + file.length() + "," + new Date(file.lastModified()));
    }
#End If

What I need is the full pathname including filename, Filenam, Size, and the date of the file. The last 3 do not need to be in the Listview necessarily, they could be in a variable so they all can be added to a Database.

Thanks for any help.

 

[Erel]

The inline java code is wrong. Why do you need it?

 

[Sifu]

Are you suggesting that to get the relevant File info, I do not need any Java code and can do only with B4J (libraries)?

 

[Daestrum]

The in-line java method is declared void, so will never return anything. The reason you see it in the log is the System.out.println(...) which writes to stdout.

 

[Sifu]

OK thanks. I know very little about Java.
I will do some further investigation how to handle this. Thanks for the heads up.

 

[William Lancee]

The info you want is available from the standard B4X File object.

    File.Size
    File.LastModified

 

[Sifu]

Thanks for the hint, reading now page 118 of B4XBasicLanguageV2_2.pdf

 

[William Lancee]

I have a permanent link to that extremely useful document by @klaus on my desktop.