Скачать или смотреть Android Studio - Spinner using only Java, no XML!

Spinner implementation using Java.

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(Program code and links below)

Learning Java by Building Android Games - https://amzn.to/2Bs3W5u
Java - A Beginner’s Guide - https://amzn.to/2A2yDyg
Beginning Android Programming with Android Studio - https://amzn.to/2SW7F2h
Android App Development for Dummies - https://amzn.to/2BpYksk


Code:-
Spinner sp = (Spinner)findViewById(R.id.sp);
ArrayList[angle open]String[angle close] al = new ArrayList[angle open]String[angle close]();

al.add("English");
al.add("Physics");
al.add("Chemistry");

ArrayAdapter[angle open]String[angle close] aa = new ArrayAdapter [angle open]String[angle close](this,android.R.layout.simple_spinner_dropdown_item,al);

sp.setAdapter(aa);