Android Question ReadList - not possible with variable names?

Quillok · Nov 2, 2019

Hey,

i'm totally frustrated, sitting since 2 hours in front of a problem and don't get to the point why it isn't working, mybe somebody of you can explain :/

B4X:

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
    'Activity.LoadLayout("Layout1")
Dim HList As List
    HList = File.ReadList(File.DirAssets,"daten/main")

'    HList:    data_1
'            data2

If File.Exists(File.DirAssets,"daten/data_1") Then Msgbox("1","")

Dim HString As String
    HString = HList.Get(0) 'data_1
If File.Exists(File.DirAssets,"daten/"&HString) Then Msgbox("2","")

If File.Exists(File.DirAssets,"daten/"&HList.Get(0)) Then Msgbox("3","")

End Sub

I only get the first messagebox.
Why isn't it possible to open a list with the other two lines?

I'm very tired, maybe thats the problem, but I've read it, deleted it, wrote it again... and nothing changes in my head and on the error -.-

Help please

LucaMs · Nov 3, 2019

You must not work on DirAssets; use it just to store the resource files of your app; copy your file from DirAsset to DirIntenal.

DonManfred · Nov 3, 2019

File.Exists does not work with DirAssets. Copy the file to DirInternal or any other path and use it here.

Quillok · Nov 3, 2019

Thank you for your replies.

But this is a sample of my problem. When I try to load the lists into a list with file.Readlist I've got the same problem.
The first one is loaded, the second and third not, here I've got an error that the file can not be found :/

klaus · Nov 3, 2019

Post a small project showing the problem, so we can see what exactly you have done and how and test it.

Quillok · Nov 3, 2019

klaus said:
Post a small project showing the problem, so we can see what exactly you have done and how and test it.

Attached a sample project with my problem.
I don't have a clue whats wrong :/

Erel · Nov 3, 2019

The internal folder is missing. You will need to add it yourself to the zip folder.

Tip:

B4X:

Dim HList3 As List
   HList3 = File.ReadList(File.DirAssets,"daten/"&HString)
'better:
Dim HList3 As List = File.ReadList(...)

Quillok · Nov 3, 2019

Erel said:
The internal folder is missing. You will need to add it yourself to the zip folder.

I've packed the whole project folder now and did not export it as zip... i did not know what you meant with internal folder because there is no folder with this name.

Erel · Nov 3, 2019

Step #1:

Step #2: open the file with Notepad++ and see that it is encoded with UTF8 BOM:

Option 1: convert the file to UTF8 with Notepad++.
Option 2:

B4X:

Dim tr As TextReader
tr.Initialize(File.OpenInput(File.DirAssets,"daten/main")) 'ignore
tr.Skip(1) 'skip over the BOM mark.
Dim list As List = tr.ReadList
Dim HString As String = list.Get(0)
Dim HList3 As List = File.ReadList(File.DirAssets,"daten/" & HString)

Android Question ReadList - not possible with variable names?

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