How to get the keys from ContentValues?

Question

My ContentValues object has string keys, and I would like to get a String[] result having all the keys in it?

How do I iterate a ContentValues object?

EDIT 1

After getting two responses I came up with this, do you see problems with it?

        ArrayList<String> ar = new ArrayList<String>();
        ContentValues cv=data;
        Set<Entry<String, Object>> s=cv.valueSet();
        for (Entry<String, Object> entry : s) {
            ar.add(entry.getKey());
        }
        String[] projection=new String[ar.size()];
        ar.toArray(projection);

Answer 1

According to the doc, the "valueSet()" method returns a set of all keys and values. You can then use an iterator on the resultant Set and getKey() on each of the iterated Entry elements to collect into a String array.