android - send double[] to Asynctask -

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i receive double array extras, need things on background send double array asynctask. @ point syntax error, like how pass double array (confparams) asyntask.

my code:

final double confparams[]= extras.getdoublearray("confparams");  alertdialog.builder builder = new alertdialog.builder(a_2_att_eleccion.this);                         builder.setmessage(msg_calc)                                 .settitle(r.string.a_2_dialwhatcalculatetitle)                                 .seticon(android.r.drawable.ic_dialog_alert)                                 .setpositivebutton("ok", new dialoginterface.onclicklistener() {                                     public void onclick(dialoginterface dialog, int id) {                                      new calculate_asyntask().execute(confparams);                                 }                             });                      builder.setneutralbutton("cancel",new dialoginterface.onclicklistener() {                         public void onclick(dialoginterface dialog, int id) {                             // user clicked cancel button                             return;                         }                     });

....................

public class calculate_asyntask extends asynctask<double[], integer, double[]> {      progressdialog progressdialog;      @override     protected void onpreexecute() {         super.onpreexecute();         progressdialog = progressdialog.show(a_2_att_eleccion.this, getstring(r.string.a_2_dialcalctitle),getstring(r.string.a_2_dialcalcmessage));     }      @override     protected double[] doinbackground(double ... params) {          double final_result[] = new double[0];           if(result_sci[0]!=null){              a_3_calcscill scill=new a_3_calcscill();             sci=scill.calcscill(result_sci,params,getapplicationcontext());             final_result=sci;          }          return final_result;     }

so how can send doublearray asyntask?

the syntax double[] used asynctask result works, why not on definition of asyntask , doinbackground params?

thanks in advance!

change following:

@override protected double[] doinbackground(double[] ... params) {      double final_result[] = new double[0];       if(result_sci[0]!=null){          a_3_calcscill scill=new a_3_calcscill();         sci=scill.calcscill(result_sci,params,getapplicationcontext());         final_result=sci;      }     return final_result; }

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