How do I Store Data when changing screen?

[Andrin_Tritten]

Hi all, I am currently building a small app and would like to somehow save the information entered(listpicker, bluetooth connection etc) in the app when changing the screen. When I change the screen to map the data disappears. Sorry for my bad english, im from Switzerland

[Alaqmar_Bohori]

The simplest option is to use the TinyDB.

See here -

FAQ Section: TinyDB

TinyDB AI2 Help page - MIT TinyDB Namespace Recovery - KIO4 etc. TinyDB after uninstall of an APP Book Collection in TinyDB(Hossein) How to save Max Scores on TinyDB - ABG Save Base64 of Image Files in TinyDB using extension - Juan Antonio Simulate Multiple TinyDBs with an extension - Juan Antonio Student names and Emails - TIMAI2 The Tiniest TinyDb Tutorial (Richard) TinyDB Limits TinyDB preloader extension - Juan Antonio History of TinyDB NameSpaces - Patton

Also the documentation -
http://ai2.appinventor.mit.edu/reference/components/storage.html

[Andrin_Tritten]

I dont understand the TinyDB, could you maybe help me do it? Here is my Code

[Taifun]

@Andrin_Tritten

I dont understand the TinyDB

A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook http://www.appinventor.org/book2 ... the links are at the bottom of the Web page. The book 'teaches' users how to program with AI2 blocks.
There is a free programming course here http://www.appinventor.org/content/CourseInABox/Intro and the aia files for the projects in the book are here: http://www.appinventor.org/bookFiles
How to do a lot of basic things with App Inventor are described here: http://www.appinventor.org/content/howDoYou/eventHandling .

Also do the tutorials Our Tutorials! to learn the basics of App Inventor, then try something and follow the Top 5 Tips: How to learn App Inventor

Taifun

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Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.

[ABG]

@Andrin_Tritten

bluetooth connection etc) in the app when changing the screen

Bluetooth connections break when you change screens.

Instead of multiple screens, stack some Vertical Arrangements, and show only one of them at a time.

[Andrin_Tritten]

Sounds good, but how do I do that correctly?

[ABG]

See http://ai2.appinventor.mit.edu/reference/other/manyscreens.html
from FAQ Section: Screens