I want to know how to detect if someone has been out of the game

MIT App Inventor Help
1

I want to know how to detect if someone has been out of the game, because other people who played the game say that when they left the window and entered again the objects on the canvas changed their place and size

2

That sounds like it would require the app to compare some local (TinyDB?) and centralized (FireBaseDB/CloudDB) record of the progress of the game.

3

no me refiero a eso, ya se como funciona, pero lo que me refiero es que mis testers dicen que cuando abren otra app y abren el juego aparecen los sprites volando

4

use the ActivityStateChanged event from the tools extension

Taifun

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

5

Watch this video: Click here
do you mean this???
go to https://console.firebase.google.com/ and customize the firebase db with this messgae :- For example: "Someone is out of the game!"

link the database with firebasedb component

you can't do/customize that in MIT App inventor