Focus problems for listview rows android

I have faced one strange issue  :
My listview rows were not selecting through Bluetooth keyboard
Tryed to select rows through Bluetooth keyboard arrow keys but no row getting focus.

Solution 1 : Initially tried android:focusable="true" and it is getting focus for each row but click funtionlity of that row is not working.

Solution 2 : Tried following tag and everything works perfectly.

android:descendantFocusability="blocksDescendants".

android:descendantFocusability

Defines the relationship between the ViewGroup and its descendants when looking for a View to take focus.
Must be one of the following constant values.

Constant	Value	Description
afterDescendants	1	The ViewGroup will get focus only if none of its descendants want it.
beforeDescendants	0	The ViewGroup will get focus before any of its descendants.
blocksDescendants	2	The ViewGroup will block its descendants from receiving focus.

/build/outputs/version.pds (No such file or directory) while clean android project

I have struckup this issue while cleaning my Android project :

Final i have done :

Try invalidating the cache by doing  : File > Invalidate Caches, Restart

My problem was resolved.