Dropdown buttons / Spinner like the ones on the design specs from Google

Question

I\'m wondering how can I do a dropdown button / menu like the ones we can see in the designs specs from Google and in the image bellow, so the list expands bellow right bellow t

Answer 1

You could use a PopUpMenu https://developer.android.com/reference/android/widget/PopupMenu.html

PopupMenu popup = new PopupMenu(context, view);

for (Element e: elementsList) {

    popup.getMenu().add(e.id).setTitle(e.title);
}

popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {

     public boolean onMenuItemClick(MenuItem item) {

        return true;
     }
});

popup.show();