I have few elements within the toolbar in this order:
<android.support.v7.widget.Toolbar>
<ImageButton android:layout_width="48dp"/>
<EditText android:layout_width = "fill_parent"/>
<Button android:layout_width="48dp"/>
<Button android:layout_width="24dp"/>
</android.support.v7.widget.Toolbar>
But when I change this EditText to fill_parent I don't see these two buttons after that. So my guess is that I'm doing something wrong, but don't know what.