iOS Question Is there a tutorial on reading/writing .txt files

[rfresh]

I need to save some data in a file (.txt would be fine) and then have my app open the file and read in that data. Is there a tutorial on how to read and write .txt files?

Is this best done using a simple .txt file or is there another preferred way to save data?

Thank you...

 

[Erel]

I'm sure that it is covered in the programming guide and in the video tutorials: https://www.b4x.com/b4i/documentation.html

Look for File.WriteText.

 

[rfresh]

Thank you...

 

[rfresh]

What library do I need? I selected the iRandomAccessFile but I still got the errors below.

These lines give an error: unknown member: File.DirRootExternal or ExternalWritable

File.WriteString(File.DirRootExternal, "String.txt", _
If File.ExternalWritable = False Then

There is no File.WriteText in the example code in this URL: https://www.b4x.com/android/forum/threads/text-files.6690/

It seems to be for B4A and not B4i (at least there is no B4i tag in the URL page).

 

[aaronk]

https://www.b4x.com/android/forum/threads/files-and-folders.46137/#content

 

[rfresh]

I created a file with the following code but I don't see it on my iPad:

    If File.Exists(File.DirDocuments, "12.txt") = False Then
        File.WriteString(File.DirDocuments, "12.txt", "test")
    End If

 

[aaronk]

Did you add the following code and watch the video from the link in my last post ?

#PlistExtra: <key>UIFileSharingEnabled</key><true/>

 

[rfresh]

Yes, I added that line of code.

And yes, I watched your video but didn't understand what it was doing. I am trying to write a file to my local iPad and not share it on iTunes.

In my iPad, my file manager shows me my Documents folder but I don't see the file in there.

 

[Erel]

You need to do it with iTunes.

 

[rfresh]

>You need to do it with iTunes.

What does that mean Erel? That my file will be on iTunes and not on my iPad?

 

[aaronk]

You need to do it with iTunes.

Yes. Apps can't view other apps files when using iOS.

That my file will be on iTunes and not on my iPad?

The file will be on your iOS device but you can also view it in the iTunes software when you plug the device into your computer.

Check out the video:

 

[rfresh]

Got it...thanks...