B4J Question Read / Write an .ini-File line by line

' Define the global map
Sub Process_Globals
  ' Global Map holding the settings
  Public  SettingsMap As Map            
  ' Define the settings file which is read by the global settings map
  Public  SettingsFile As String = "settings.txt" 
End Sub
                              
'Check if the settings file exists, else create a new file
If File.Exists(File.DirApp, SettingsFile) Then
    SettingsMap = File.ReadMap(File.DirApp, SettingsFile)
Else
    'Create a new map and save
    SettingsMap = CreateMap ("Sortlist": "False", "ButtonTitles": "False")
    File.WriteMap(File.DirApp, SettingsFile, SettingsMap)
End If

' Get the settings from the global map.
' IMPORTANT: Use exact case for the keys
Log("Get setting...")
If SettingsMap.Get("ButtonTitles") = False Then
  btnInsert.Text = ...
End If                   

Make updates by using like SettingsMap.Put("ButtonTitles", False)

' If changes to the settings are made, save the changes to the global map
File.WriteMap(File.DirApp, SettingsFile, SettingsMap)

Sub Process_Globals
  ...
    Private settingslist As List
End Sub

Sub AppStart (Form1 As Form, Args() As String)
...
    AppInit
...
End Sub

Sub AppInit
    ReadSettings
    'Update the second item - note the list index starts at 0
    UpdateSetting(1, True)
    SaveSettings
    ListSettings
End Sub

Sub ReadSettings
    settingslist = File.ReadList(File.dirapp,"port.ini")  
End Sub

Sub UpdateSetting(idx As Int, value As Boolean)
    settingslist.Set(idx, value)
End Sub

Sub SaveSettings
    File.WriteList(File.dirapp,"port.ini", settingslist)  
End Sub

Sub ListSettings
    For Each b As Boolean In settingslist
        Log(b)
    Next
End Sub