android.database.CursorIndexOutOfBoundsException: Index 0 requested, with a size of 0

Question

I am using custom adapter extending cursor adapter for displaying data in listview, to display particular phone number i have passed the id to a method in database class but

Answer 1

First check this Condition before fetching data

if(cursor!=null && cursor.getCount()>0){
  cursor.moveToFirst();
  num = cursor.getString(cursor.getColumnIndex("ContactNumber")); 
}