Toolbar Menu Item spacing issue

I have a toolbar in my Android app with a custom menu item as follows:

<group android:checkableBehavior="single">
    <item
        android:id="@+id/todayIcon"
        android:title=""
        app:actionViewClass="com.anubavam.creatrix.modules.calendar.view.TodayMenuTextView"
        app:showAsAction="always" />

</group>

I am customizing the menu item using:

app:actionViewClass="com.anubavam.creatrix.modules.calendar.view.TodayMenuTextView

This is my TodayMenuTextView class:

public class TodayMenuTextView extends android.support.v7.widget.AppCompatTextView {
    public TodayMenuTextView(Context context) {
        super(context);
        init();
    }

    public TodayMenuTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public TodayMenuTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }

    private void init() {
        setBackground(ContextCompat.getDrawable(getContext(), R.drawable.ic_go_to_today));
        setMaxLines(1);
        setFilters(new InputFilter[]{new InputFilter.LengthFilter(1)});
        setTextColor(Color.WHITE);
        setPadding(0, 10, 0, 0);
        setGravity(Gravity.CENTER);
        setTextSize(12);
        requestLayout();
    }
}

This is my output:

My menu item is going to the right of the toolbar. Also the menu item click is not working.

How can I add menu item a the right margin and solve the click issue?