android.view.View$OnUnhandledKeyEventListener

Question

I am new to Android Studio and I don\'t get why my toolbar isn\'t shown as described by https://developer.android.com/training/appbar/setting-up I know there are already som

Answer 1

As mentioned by documentation, first, your Activity should be extend from AppCompatActivity().

Second, in your project styles, Base.Theme.AppCompat.Light.DarkActionBar is set which means it does have a DarkActionBar but you already have a Toolbar in your layout. So, simply, change:

Base.Theme.AppCompat.Light.DarkActionBar

to:

Theme.AppCompat.Light.NoActionBar

Then, (in java-kotlin side), setup the Toolbar:

// Note that the Toolbar defined in the layout has the id "my_toolbar"
    setSupportActionBar(findViewById(R.id.my_toolbar))

And give the Toolbar an id.

Then you should be good to go.