Android Question File browser - all in white?

[JeffT]

In 2 projects, I use the same code.
In one of them the file browser dialog appears with white letters on a black background - great.
In the other, using the same code, its white -ish on a white background.. the folder and file names are almost unreadable.

ANy idea why the difference and how to address it?

    Try
        Dim fd As FileDialog
        fd.FilePath = File.DirRootExternal
        Dim sf As Object = fd.ShowAsync("Select file", "Open", "Cancel", "", Null, False)
        Wait For (sf) Dialog_Result(Result As Int)
        If Result = DialogResponse.POSITIVE Then
            
    'Do stuff with the file here
        End If

    Catch
        Log ("Error opening file chooser")
    End Try

 

[DonManfred]

Theme?

 

[klaus]

I suppose that you have different themes in the Manifest Editor.

 

[JeffT]

(newbie)

Whats a theme?
Same device, same PC, one project (the white one) uses B4XPages the other does not.
I dont know where to change or set a theme.

 

[klaus]

Compare the highlighted line is both projects.

 

[JeffT]

I found manifest editor, and yes- the themes were different .. no idea why.
Set it to dark and it looks fine now.

Thanks all!
But based on this, I cant see why anyone would use light - the file dialog is unusable in that mode.

 

[Erel]

FileDialog was more relevant in the past. Google is hiding the file system from the user and with each version it becomes more difficult to access it directly. You more or less need to forget from FileDialog and File.DirRootExternal.

You should instead use ContentChooser with FileProvider.

 

[JeffT]

Thanks Erel.
I'll look into that.
If Google hides the file system, how is a user expected to access a document created on another device?

Content Chooser examples I have seen all seem to focus on being able to get an image. Thats not what I need. The files I want are text/binary files

 

[Erel]

This gives you access to everything:

Sub Class_Globals
    Private Root As B4XView
    Private xui As XUI
    Private CC As ContentChooser
End Sub

Public Sub Initialize
    CC.Initialize("CC")
End Sub

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
End Sub


Sub Button1_Click
    CC.Show("*/*", "Choose file")
    Wait For CC_Result (Success As Boolean, Dir As String, FileName As String)
    If Success Then
        
    End If
End Sub

 

[JeffT]

Looking at ContentChooser, it appears to suggest that 'some other application needs to be able to provide the content'
I assume that is file explorer? What if there isnt a file explorer?

The docs say:
Mime - The content MIME type.
Title - The title of the chooser dialog (when there is more than one application).
Examples:
CC.Show("image/*", "Choose image")
CC.Show("audio/*", "Choose audio file")

My files don't have a mime type .. how do I handle that?
eg I have a file format that has an extension of (say) TPL .. no other app handles such files...

 

[JeffT]

edit: ah, I see you beat me to it..

 

[JeffT]

The content chooser gives a nicer looking dialog.
Took a while to change the settings so that I could see my files in a 'Downloads' folder.
But there is a big difference in the way the directory and file names are returned.

File Dialog gives me
Dir = /storage/emulated/0/download
and
filename = Myfile.OXS


Content Chooser gives me
Dir = ContentDir
Filename = content//com.android.externalstorage.documents/document/primary%3ADownload%2FMyfile.OXS


While I can use the values from file dialog to get my file, I cant work out how to use the values from Content Chooser.
Is the presence of the %3A and %2F causing an issue?


File.exists(Dir,Filename) returns false with Content Chooser, and true for the File Dialog


I should add that this target file is an XML file.
What I want to do next is parse it.

 

[Erel]

Please don't make duplicate posts. You should never use File.Exists with ContentChooser. It is not needed. Check whether Success is true.