Toolbar customization can done by following ways
write button and textViews code inside toolbar as shown below
<android.support.v7.widget.Toolbar
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/app_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<Button
android:layout_width="wrap_content"
android:layout_height="@dimen/btn_height_small"
android:text="Departure"
android:layout_gravity="right"
/>
</android.support.v7.widget.Toolbar>
Other way is to use item menu as shown below
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}