Bluetooth On Android: Debuging Startdiscovery()

I'm working on an app that searches for discoverable devices and displays them as buttons. When calling startDiscovery() I would say it works 30% of the time, based on the way I'm

Solution 1:

I confirm this issue.

On some telephones you just need to disable/active BT. You can doit programatically with

mBluetoothAdapter.disable(); 
mBluetoothAdapter.enable();

On some telephones its not enough ( Samsung S5 ). To detect it, I use timer, and if on end of timeout the change of BT broadcast state (BluetoothAdapter.ACTION_DISCOVERY_STARTED or BluetoothAdapter.ACTION_DISCOVERY_FINISHED ) wasnt received => its sign that BT is not working. Actually I show dialog which propose to user reboot the telephone.