You need a list block to feed the Elements property.
Also, in the future, please get screenshots of your blocks by right-clicking the blocks and selecting Download Blocks as PNG
Join a list block
is this correct?
Is this correct ?
I am guessing you want to use the List Picker for your BlueTooth device connection selection?
If so, here is a sample based on a ListView (close enough) and TinyDB.
These blocks can be dragged into your Blocks Editor to request permission(s) for Bluetooth scanning and connecting. All three parts are needed.
Thanks to @Anke for the original code.
My changes include
- use of the Screen1 permission blocks to avoid the possibility of a typo
- using a TinyDB tag particular to BT permissions and only for BT permissions.
Thank you, what is list block ? Where to get it ?
It was available about 6 months ago, I am using windows 7 operating system.
You can find it in the list category.
It seems that you haven't learned the basics of App Inventory, especially the List blocks.
A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook at 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...?.