Android Spinner using ArrayList<String>

Question

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.

And why you are using 2 arraylist.... your arr is refering to Global arraylist but not the arraylist in which you are saving your data — MRX
– MRX, Commented Feb 12, 2015 at 10:22

codeMagic · Accepted Answer · 2013-11-06 19:21:34Z

54

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.

answered Nov 6, 2013 at 19:21

codeMagic

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1 Comment

Devrath Over a year ago

This is the most simplest way which can be used to populate spinner dynamically[+1]

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