I have been using values of spinner from XML string-arrays so far like:
Spinner karant_sp;
karant_sp = (Spinner) findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> karant_adapter = ArrayAdapter.createFromResource(this, R.array.karant_list, android.R.layout.simple_spinner_item);
karant_adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
karant_sp.setAdapter(karant_adapter);
karant_sp.setSelection(0);
karant_sp.setOnItemSelectedListener(new select_karant());
Can I use a local java ArrayList-String as the list of items to be displayed in drop down menu?
Something like:
Spinner karant_sp;
ArrayList<String> return_likes = new ArrayList<String>();
return_likes.add("Hello");
return_likes.add("world");
karant_sp = (Spinner) findViewById(R.id.spinner1);
ArrayAdapter<CharSequence> karant_adapter = ArrayAdapter.createFromResource(this, return_likes, android.R.layout.simple_spinner_item);
karant_adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
karant_sp.setAdapter(karant_adapter);
karant_sp.setSelection(0);
karant_sp.setOnItemSelectedListener(new select_karant());
I know the above code doesn't work, but I would like to know something which works using ArrayList-string.
Yes. Just don't call createFromResource()
on your Adapter
. Use one of the constructors instead. Something like
ArrayAdapter<String> karant_adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, return_likes);
This is just an example you might have to change something else to get it working depending on what isn't working. But The ArrayAdapter Docs should help.