Android Question Write and read a txt file

Eme Fibonacci

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• Oct 4, 2018

• #2

B4X:

Dim TextWriter1 As TextWriter
    TextWriter1.Initialize(File.OpenOutput(File.DirRootExternal, "Text.txt", False))
    For i = 1 To 10
        TextWriter1.WriteLine("Line" & i)
    Next
TextWriter1.Close

From tutorial
https://www.b4x.com/android/forum/threads/text-files.6690/#content

 

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Giusy

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• Oct 4, 2018

• #3

Thank you very much @Eme Fibonacci

 

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MarkusR

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• Oct 4, 2018

• #4

ROWs=16

Click to expand...

if u write the count of lines before its easier to read.
u can also save/load a map (key/value) with File.

 

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R

Roycefer

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• Oct 4, 2018

• #5

Erel is going to yell at you for using TextReader and TextWriter. I predict he'll say that in most cases, you are better off using File.ReadList and File.WriteList or similar methods.

 

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Erel

B4X founder

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• Oct 7, 2018

• #6

That's true. The only reason to use TextReader / TextWriter is if you want to use an encoding other than UTF8.

 

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