How to pass values to AsyncTask Android -

this first time using asynctask , little confused well, passing values.

i have 4 arraylist<string> s, contain data should inserted database. want insertion done in background. there minimum of 50 rows inserted database , 1 row inserted @ time, taking passing values 4 arraylists have.

can guide me on how this?

now create subclass insertdata extends asynctask :::

private class insertdata extends asynctask<params, progress, result>{          @override         protected result doinbackground(params... params) {             // todo auto-generated method stub             return null;         }    } 

i have values in 4 arraylists, in need retrieve 1 entry each arraylist , pass 4 values database. how pass these 4 values asynctask , also, how repeat till there entries in arraylists.

here database method inserts 1 row database :::

public void insert_row(int count, string image_url, string name, string number) {         // todo auto-generated method stub          db.execsql("insert contacts values('"+ count +"', '"+ image_url +"', '"+ name +"', '"+ number +"')");     } 

if can give me overview on how can implement this, great.

try following, and, anyway, create constructor insertdata parameters need, store them in insertdata class fields , use in doinbackground().

private class insertdata extends asynctask<arraylist, progress, result>{              @override             protected result doinbackground(arraylist... params) {                 // todo auto-generated method stub                 arraylist list1 = params[0];                 arraylist list2 = params[1];                 ...                 return null;             }        } 

call:

insertdata task = new insertdata(); task.execute(yourlist1, yourlist2, yourlist3...);