Android Question What is the fastest way to split this string?

Sub ParseCSVLine(csvLine As String) As List
    Dim values As List
    values.Initialize
    Dim startIndex, endIndex As Int
    Dim insideQuotes As Boolean = False
    Dim c As Char
        
    For endIndex = 0 To csvLine.Length - 1
        c = csvLine.CharAt(endIndex)
        If c = Chr(34) Then
            insideQuotes = Not (insideQuotes)
        Else
            If (c = Chr(44)) And Not (insideQuotes) Then
                values.Add(csvLine.SubString2(startIndex, endIndex).trim)
                startIndex = endIndex + 1
            End If
        End If
    Next
    values.Add(csvLine.SubString2(startIndex, endIndex ).trim)
    Return values
End Sub

Sub ParseCSVLine(csvLine As String) As List
    Dim const  qotecar As Char = Chr(34)
    Dim const  separator  As Char = Chr(44)
    Dim startIndex, endIndex As Int
    Dim insideQuotes, DoubleQuote  As Boolean
    Dim c As Char
    Dim values As List : values.Initialize
        
    For endIndex = 0 To csvLine.Length - 1
        c = csvLine.CharAt(endIndex)
                
        If c = qotecar Then
            If endIndex < csvLine.Length-1  And csvLine.CharAt(endIndex+1) = qotecar Then
                endIndex = endIndex +1         
                DoubleQuote = True
            Else
                insideQuotes = Not (insideQuotes)
            End If
        Else
            If (c = separator ) And Not (insideQuotes) Then
                If DoubleQuote Then
                    DoubleQuote = False
                    values.Add(csvLine.SubString2(startIndex, endIndex).trim.Replace(qotecar & qotecar ,qotecar ))
                Else
                    values.Add(csvLine.SubString2(startIndex, endIndex).trim)               
                End If
                startIndex = endIndex + 1
            End If
        End If
    Next
    values.Add(csvLine.SubString2(startIndex, endIndex ).trim)
    Return values
End Sub