I would like to know what is recommended way to manipulate with
General navigation in my app is by using
NavigationDrawer. One fragment however shows music albums and I would like to use Navigation drop down to filter albums by genres. Is it proper way to do that? How should I populate genres within
ActionBar's drop down? Should I do it in
Activity or in
Best How To :
The ActionBar lives in the Activity always, and needs to be controlled/populated from here.
Since you are using fragments, you should use the AB lifecycle methods in the Activity (onCreateOptionsMenu() ) to change the AB items, when you switch between fragments (again this is done in your Activity, so you are already making Fragment changes, and just need to also make AB changes).
I do think you are describing a proper use case for NavDrawer, AB, and Fragment usage - it is appropriate to put filter criteria for your content fragment in the AB.