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-list-of-other-related-methods.129897/#content Allow other apps to view text files using this app...-with-activityviewcontroller.73159/#content This also allows saving the text with the Files app. Allow other apps to view text files using this app: https://www.b4x.com/android/forum/threads/open-external...This is a B4i and B4A example, which demonstrates various external files related tasks. 116714.... B4A Load external files, including online files, using ContentChooser. Save to an external target...

are files and databases. We will cover text files in this tutorial. The predefined Files object has several utility methods for working with text files which are pretty easy to use. Files locations...) you may prefer to work with TextReader or TextWriter. File.WriteString - Writes the given text to a new... several methods for writing and reading to files. You can also use TextReader and TextWriter to do it manually. Note that TextReader and TextWriter are not limited to files and can work with other...

Process_Globals Type IpAndCount (ip As String, count As Int) Private serializedMapFile......") Dim tr As TextReader tr.Initialize(File.OpenInput("", Args(0))) Dim... build apps that handle huge files. I downloaded a 3.7GB log file from this server. Each line represents... will go over all the lines in the file and add each ip address to a Map named ips: Dim count... with RandomAccessFile.WriteObject. This allows you to write the whole map to a binary file. raf...

Description: appends text to a text file ? Author: @Erel (original code here) Platforms: B4A, B4J, B4i Private Sub AppendToTextFile(Dir As String, FileName As String, Text As String, NewLine As Boolean) If NewLine Then Text = CRLF & Text End If Dim out As OutputStream = File.OpenOutput(Dir, FileName, True) Dim b() As Byte = Text.GetBytes("utf8") out.WriteBytes(b, 0, b.Length) out.Close End Sub ...

As String = e.GetDragboard.GetFiles.Get(0) Try txtFile.Text = filename Catch Log... txtFile As B4XFloatTextField Private DragAndDrop1 As DragAndDrop Private AllowedExtensions As List....HintText = "Drop file (allowed extensions: csv, xlsx, xls)" txtFile.Update Sub... As DragEvent) txtFile.TextField.SetColorAndBorder(xui.Color_White, 1dip, xui.Color_LightGray, 2dip....Size = 1 And File.Exists(files.get(0), "") Then Dim filename As String...

This is just another example based on the ManageExternalStorage class provided by @agraham. It is a response to this question. B4ARepositoryWriter - writes a text file to an "external" directory (you can view using File Explorer). B4ARepositoryReader - reads the text file in this directory if it exist. I guess if we are able to read a text file then it should be possible to read keyvaluestore or sqlite files. Note: I have modified slightly the class by modify the package name...

1. I use StringUtils library to import the CSV text file into the SQLite table. There are other ways to import like, such as CSVParser class module, RegEx.Split and TextReader, although TextReader is no longer recommended by the community. 2. The text file in this project has a semi colon as delimiter. With StringUtils, you can use whatever delimiter came with the file. 3. The column names of the table created are generated from the first row of the text file which is the header, 4. The project...

Ola I'm working on some random data generator so I need to be processing some lists. After I downloaded a list of countries from the interweb, I needed a way to quickly convert this into a list variable for my B4J program. When a file is selected, its read into a list and the code generated as a B4J variable with all the names on the file. 80603...

With this example, you can encrypt and decrypt plain text and files. The following options are available: Text encoding options: Hex or Base64 Selectable key sizes: AES-128, AES-192, or AES-256 Option to embed a salt into the encrypted text and extract it for decryption Option to embed a salt or ID into an encrypted file and extract it before decryption File encryption using either chunked mode... jRandomAccessFile. This solution uses the built-in cryptography features provided by Java....

example code as I needed a way to get a text file contents without having to upload to the server... is the class code: public Sub readAsText(fr As String) As BANanoPromise Dim promise..., "ReadFileAsText", Array(fr)) Return promise End Sub private Sub ReadFileAsText(FileToRead As Object... FileReader.RunMethod("readAsText", FileToRead) End Sub private Sub OnLoad(event As Map) As String 'ignore ' getting our file again (set in UploadFileAndGetDataURL) Dim...