Android Question Messenger Tool

[SternFaun]

Hello again,

I need help. I want to create kind of a messenger application.

I need to have a listfile in the internet, and my application should write a line in this listfile. If the listfile contains 6 lines, a new listfile will be created and the old will be deleted. This means it won't a big list at all and a database is not requiered.

My mainquestion is, how can i get a listefile to the internet and how can I apply it through my app. Sorry for the bad english, I hope you understand what I try to say. I'm totally new to programming, I dont do it professionally, just as a freetime activity.

 

[Erel]

A good solution will involve a simple backend server. This can be done easily with B4J: https://www.b4x.com/android/forum/threads/server-building-web-servers-with-b4j.37172/#content

If you don't want to implement a backend server then you can use FTP to download the current file, modify it and upload it back.

 

[SternFaun]

Thanks for your answer. Where can I get further Information about how to use ftp?

 

[DonManfred]

how to use ftp?

Have you ever tried to find this information by yourself using the forumsearch??? The search IS working.

https://www.b4x.com/android/forum/pages/results/?query=ftp&page=1&prefix=0

 

[SternFaun]

Yeah, DonManfred. I used the search function. But most time the explainaitions in the tutorials are too spezific for my knowledge. I need instruction what exactly to do to download and upload. Do I need a FileZilla Server to use the ftp library? is the ftp lib like a ftp client? when i download a file using the ftp lib where is it saved and how can i change the files content!? are there any examples for access a downloaded file and change it whis the file.writelist (file.dirinternal..) syntax?

 

[DonManfred]

Do I need a FileZilla Server to use the ftp library?

the net library

is the ftp lib like a ftp client?

the net library. Yes, it´s like an FTP-Client

when i download a file using the ftp lib where is it saved and how can i change the files content!?

it is saved on the path you define where to save...

and how can i change the files content!?

Reading the file, changing it, save back...

are there any examples for access a downloaded file and change it whis the file.writelist (file.dirinternal..) syntax?

See the beginners guide and usersguide. All file methods are described here

 

[SternFaun]

Thank you for your answer. Do i need a ftp server or/and a ftp application like filezilla to get a path where i can upload my file? I dont understand how to get webadress where my Files are and from which i can download. does the net library create a server or do i have to create one with an external ftp application?

sorry for my stupid questions but im a totally beginner when it comes to servers etc.

 

[DonManfred]

need a ftp server

yes. Your own.