Hi everybody, my name is Marco Castro.
Somebody can help me. I have this problem.
I'm creating a program to control a robot car using Arduino uno and Bluetooth, and using 2 screens', in the screen1 I have the Bluetooth connection, when I'm change to the screnn2 the Bluetooth connection is down, but I'm need the connection. How I'm cand to solve this.
For your support
Switching Screens breaks Bluetooth connections.
Stack Vertical Arrangements in Screen1, only one visible at a time.
You can copy a Screen in the Designer (Ctrl-C) and paste it into another screen (Ctrl-V).
You do have to be careful about using that technique - backup your project first.
Concerning the use of Vertical Arrangements as screens, these are known as 'virtual screens'. When we define virtual screens, we use one 'real' App Inventor Screen (most often Screen1). Screen-sized Vertical Arrangements on it are displayed/hidden as required - they are the Virtual Screens. This is generally a better approach for multi-screen Apps, they share data without having to "pass" it between screens and it also reduces code duplication, making the App more efficient and the code easier to follow if you have to return to it at a later date.
So, instead of separate "houses", virtual screens are "rooms" of the same "house".
AI2 has undocumented copy/paste (Ctrl-C/Ctrl-V) features in the Designer.
It doesn't take long to copy whole Arrangements from one Screen to another.
The accompanying blocks ride along.
HI thanks a lot everybody, I will save my project first.
and trie those options.
I be in contact, Thanks.