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This format makes it easy to edit it manually. ' One common usage of File.WriteMap is to save a map of "settings" to a file. 'Reads the file and returns its content as a string. 'Example:<code> 'Dim text As String = Storage.ReadString(Storage.Root, "myfile.txt")</code> Public Sub R

You cannot use File.ReadMap and File.WriteMap because your values are lists not strings. You have to use Serializator (need RandomAccessFile lib) to save the file and retrieve it.. See below code: ' Write map to file Dim ser As B4XSerializator 'you need RandomAccessFile lbrary checked Dim ty
link: If I write the map in a file.txt, after map=File.ReadMap(..., File.txt) How Can I show the the values in CustomListView2 clicking on a key showed in

https://www.b4x..png File. WriteMap (Dir As String, FileName As String, Map As Map) Creates a new file and writes the given map. Each key value pair is written as a single line. All values are converted to strings.
link: OK, I solved it with RandomAccessFile and WriteB4XObject - ReadB4XObject instead File.WriteMap - File.ReadMap
link: The file content is: #Sat Jun 16 22:59:43 MESZ 2018 Pos2= The type is defined in Main Process_Globals: Type typProps(bezeichnung As String, preis As
link: It seems that the result from map.Get(sKey) is a string like "" and can not be casted into a custom type. Any idea, what I am doing wrong?

File.WriteMap creates a text file. It will not work with raw bytes. You should use BytesToFile isntead: https://www.b4x./#content

It will be ALL STRINGS after you save it this way. https://www.b4x..png File. WriteMap (Dir As String, FileName As String, Map As Map) Creates a new file and writes the given map. Each key value pair is written as a single line. All values are converted to strings. <--- !!! Use B4XSerializator to
link: Hello everyone. I've a Map, that will be saved using File.WriteMap Dim m1 As Map = CreateMap("Version": AppVersion, _

That's expected. As I wrote: File.WriteMap / ReadMap is only good for simple values as it creates a text file.
link: There are several other mistakes that you should avoid: Dim MyMap As Map MyMap.Initialize MyMap=File.Readmap(File.DirInternal, "maptrivia")
link: I stepped thru it and got similar results. I think it has to do with the data extracted as a string when read from a saved map file. Can you try it an
link: When I extract the map data from the saved map file as shown below, I get the error on line 62 as shown below: But if I put the Type members data in a

File.WriteMap converts all values to a string and saves one key: string-Value as a pair on each record/line in the file. The List is converted to a string. When read it is still a string. When you log the list and string they look the same. You need to use the B4XSerializator from the internal Ra
link: I was aware that WriteMap create a text file, with list represented using '{}', but I expected that ReadMap do the reverse and reconstruct the list fr
link: I prefer to work with JSON library. The format is human readable. Dim xmlfile As String = File.ReadString(File.DirApp, "example.xml") Dim xm As Xml2
link: This was the solution for my problem. Thank you. I was not aware that WriteMap does not save the map in the right format. Then there is any differen

Hi. My problem is to write on disk various Lists, in sequence, on same file. The saving sequence is: File.Delete(InternalWorkDir,FileUndo) File.WriteList(InternalWorkDir,FileUndo,Layers) File.WriteMap(InternalWorkDir,FileUndo,colorMap) b=rvs.ConvertObjectToBytes(layerMap.Size) ' jus

The comment line is from file.writemap(). It is autmatically saved.

The File methods in B4J are identical to B4A File methods. Text file methods File.WriteString - Writes the given text to a new file. File.ReadString - Reads a file and returns it content as a string. File.WriteList - Writes all values stored in a list to a file. All values are converted to string

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