Adding font size to NavigationView item in android

Question

In navigationView when i select an item, the selected item should be in bold and increase in font size. How do i achieve this?

Basically, I want to add a selector for the navigation item which will display bold font on selected state and normal font on non-selected state.

Thanks

Answer 1

Try like below

    //put this in main Activity
private void setFontToMenuItem(MenuItem mi) {

    Typeface font = Typeface.createFromAsset(getAssets(), "fonts/customfont.ttf");
    SpannableString mNewTitle = new SpannableString(mi.getTitle());
    mNewTitle.setSpan(new CustomTypefaceSpan("" , font), 0 , mNewTitle.length(),  Spannable.SPAN_INCLUSIVE_INCLUSIVE);
    mi.setTitle(mNewTitle);
}

Use like this

navigationView = (NavigationView) findViewById(R.id.navigation_view);
    Menu m = navigationView.getMenu();
    for (int i=0;i<m.size();i++) {
        MenuItem item = m.getItem(i);

        //for aapplying a font to subMenu ...
        SubMenu subMenu = item.getSubMenu();
        if (subMenu!=null && subMenu.size() >0 ) {
            for (int j=0; j <subMenu.size();j++) {
                MenuItem subMenuItem = subMenu.getItem(j);
                setFontToMenuItem(subMenuItem);
            }
        }

        //the method we have create in activity
        setFontToMenuItem(item);
    }