How to access the actionbar from a fragment in kotlin?

ActionBar is a property of Activity, so to set your toolbar as the actionBar, your activity should extend from ActionBarActivity and then you can call in your Fragment: ... However the code given above is in java. How do I call this in Kotlin? To access the ActionBar from a Fragment in Kotlin:
Just so, what does a fragment mean in Android Kotlin?
A Fragment represents a behavior or a portion of user interface (UI) in an Activity. You can combine multiple fragments in a single activity to build a multi-pane UI, and you can reuse a Fragment in multiple activities. A Fragment has its own lifecycle and receives its own input events.
In respect to this, how to create a Kotlin class in Android Studio? Start by creating a Kotlin class for a new Fragment: In Android Studio, click anywhere inside the Project pane to bring the focus back to the project files. For example, click the com.example.android.navigation folder. Select File > New > Fragment > Fragment (Blank). For the Fragment name, enter TitleFragment.
Also Know, why is the support action bar null in Kotlin?
It seems like you're setting the support action bar, so you'd have to use the support action bar in the onCreateView method too. The actionBar is null, that's why the code to set the title won't run.
Also, how to call setsupportactionbar in a fragment?
Fragments don't have such method setSupportActionBar (). ActionBar is a property of Activity, so to set your toolbar as the actionBar, your activity should extend from ActionBarActivity and then you can call in your Fragment: ... However the code given above is in java.

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