片段设置的透明操作栏

Question

I have an application which consists of a single activity consisting of a content frame for fragments with a navigation drawer which controls which fragment is displayed.

I'm trying to work out if I can make the action bar transparent for some of the fragments but not for others, looking at

http://developer.android.com/training/basics/actionbar/overlaying.html

and other questions on this site they all seem to give examples of creating different styles for the actionbar and setting these styles on a per activity basis in the manifest, is there a way to do this on a per fragment basis?

Answer 1

You can use getActivity() method in fragment to get activity context and get the actionbar instance. Then you can do whatever you wish to do with it.

ActionBar actionBar = getActivity().getActionBar(); 
// replace getActivity() with ((ActionBarActivity)getActivity()) if using appcompat

And then you can set transparent background to id:

actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#80000000")));