Bluetooth Listpicker list is empty, not shown, but hc-05 connection is succesfuly with manuel address enter

MIT App Inventor Help
,
#1

Bluetooth Listpicker list is empty, not shown, but hc-05 connection is succesfuly with manuel address enter.

Same device, same codes, but one list shows up and one does not.

Screenshot_20230425_114211
Screenshot_20230425_114211800×1340 41.9 KB

Screenshot_20230425_114257
Screenshot_20230425_114257800×1340 66.2 KB

help please...

#2

Please download and post each of those event block(s)/procedures here ...
P.S. These blocks can be dragged directly into your Blocks Editor workspace.

See Download Block Images for a demo.

#3

blocks (3)
blocks (3)1568×440 69.9 KB

blocks (2)
blocks (2)1288×130 21.7 KB

blocks (1)
blocks (1)1310×752 115 KB

blocks
blocks1448×330 49.2 KB

i am using this program from 3 years. this problem is new...

#4

What brand of phone and what android?

#5

Samsung galaxy tab a7 lite SM-T220
android version : 13

#6

same problem with me

#7

(Canned Response ABG - Bluetooth non-BLE SCAN Permission Blocks)

These blocks can be dragged into your Blocks Editor to request permission(s) for Bluetooth non-BLE scanning and connecting. All three parts are needed.

You also will need to pull in TinyDB into your project.

to apiLevel result
to apiLevel result1650×228 38.3 KB

when Screen1 .Initialize do
when Screen1 .Initialize do1366×592 84.4 KB

when Screen1 .PermissionGranted permissionName do
when Screen1 .PermissionGranted permissionName do1366×790 109 KB

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.