Hi guys, how can i make the data (x) be showed by selecting the user of the City (x) and the data (y) be showed after selecting the city (y)

i'm beginner and have to create just this one app to start

Where do you store the cities and their corresponding data?
You could have 2 lists, list 1 a list of cities and list 2 the corresponding data
Pick a city using a listpicker and in the after picking event select the corresponding dara from list 2 using the selection index

A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook App Inventor 2 Book: Create Your Own Android Apps ... 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 Course In A Box and the aia files for the projects in the book are here: App Inventor 2 Book: Create Your Own Android Apps
How to do a lot of basic things with App Inventor are described here: How do you...? .

Also do the tutorials http://appinventor.mit.edu/explore/ai2/tutorials.html to learn the basics of App Inventor, then try something and follow the Top 5 Tips: How to learn App Inventor


Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by icon24 Taifun.

thanks i will absolutely push the limits , the data i gonna put it in google sheets, i made the link before , but the challenge to me is in the blocks


my app is about . showing data to user by selecting cities
the user select the city and the data be show in another screen to (take) it
that's all
i put all cities in one spinner to choose and i create another screen with viewlist to get the data from google sheets for user to see , every city has a specific list
is it the good way ?
the problem always in the blocks

You do not need two screens to do this.

ok :ok_hand: i'm trying this

Here is a simple example:

cities.aia (4.1 KB)

that's helpful to me , thank you power user