安卓ContentProvider实现查找，分批查找

//用到的方法
Cursor android.content.ContentResolver.query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder)

select a from table where id = 3
order by name desc
limit 10 offset 0

query(uri, new String[]{"a"}, "id = ?", new String[] {"3"}, "name desc limit"+ 10 +"offset"+ 0 );