android - Call AsyncTask in the onRecive -

i need call asynctask function since onreceive(). problem when call function, different textviews must change in onpostexecute(), don't change it!

this code:

@override public void onreceive(context context, intent intent) {     // todo auto-generated method stub     super.onreceive(context, intent);      if (sync_clicked.equals(intent.getaction())) {          appwidgetmanager appwidgetmanager = appwidgetmanager.getinstance(context);         int appwidgetid = intent.getintextra(appwidgetmanager.extra_appwidget_id,                 appwidgetmanager.invalid_appwidget_id);               remoteviews remoteviews;             componentname watchwidget;              remoteviews = new remoteviews(context.getpackagename(), r.layout.widget);             watchwidget = new componentname(context, widget.class);              remoteviews.settextviewtext(r.id.textview56, "actualizando");              remoteviews views = new remoteviews(context.getpackagename(), r.layout.widget);             new longoperation(views, appwidgetid, appwidgetmanager).execute("myteststring"); //calling asynctask              appwidgetmanager.updateappwidget(watchwidget, remoteviews);      } }  protected pendingintent getpendingselfintent(context context, string action) {         intent intent = new intent(context, getclass());         intent.setaction(action);         return pendingintent.getbroadcast(context, 0, intent, 0);     } 

and asynctask. part of code use , works when call sice onupdate:

public class longoperation extends asynctask<string, void, string> {         private remoteviews views;         private int widgetid;         private appwidgetmanager widgetmanager;          public longoperation(remoteviews views, int appwidgetid, appwidgetmanager appwidgetmanager){             this.views = views;             this.widgetid = appwidgetid;             this.widgetmanager = appwidgetmanager;          }          @override         public void onpreexecute() {             super.onpreexecute();         }          @override         public string doinbackground(string... params) {             try {                 ....             } catch (exception e) {                 ....             }              return temperatura;         }          @override         public void onpostexecute(string result) {             views.settextviewtext(r.id.textview66, result+ "ºc ");              widgetmanager.updateappwidget(widgetid, views);         }     } 

i think problem in appwidgetid can't solve...

thanks,

marc

the use of asynctask in broadcast bad practice, because android may kill process in onreceive() if there no active service or activity, , no gurantee return.

in case, official documentation recommends intentservice:

"the specific constraint on broadcastreceiver execution time emphasizes broadcast receivers meant do: small, discrete amounts of work in background such saving setting or registering notification. other methods called in ui thread, applications should avoid potentially long-running operations or calculations in broadcast receiver. instead of doing intensive tasks via worker threads, application should start intentservice if potentially long running action needs taken in response intent broadcast."