ArrayAdapter.createFromResource issue

Question

I am trying to make "Select one" on Spinner. I saw all answer regarding this subject but I am still having some issues. Usual way of making custom spinner is:

ArrayAdapter<CharSequence> dataAdapter1 =  ArrayAdapter.createFromResource(this, R.array.entries,
                                        android.R.layout.simple_spinner_item);
        dataAdapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner1.setAdapter(dataAdapter1);

        spinner1.setAdapter(
                  new NothingSelectedSpinnerAdapter(
                        dataAdapter1,
                        R.layout.contact_spinner_row_nothing_selected,
                                                    this));

In this code I have to define R.array.entries in Strings.xml, but my app is populating spinner from MySQL and I am having a list grad[i]=json.getString("Grad");. How can I create this ArrayAdapter.createFromResource with that list instead of Entries that are defined in Strings.xml? Tnx

Answer 1

Query the data, put it in a List or Array and use this constructor of Array Adapter

ArrayAdapter<CharSequence> dataAdapter1 =  new ArrayAdapter(this, 
                                    android.R.layout.simple_spinner_item, yourArrayOrList);

More here: http://developer.android.com/reference/android/widget/ArrayAdapter.html#ArrayAdapter(android.content.Context, int, java.util.List)