android - Use the same AsyncTask to update different views -

i have button on 6 different activities. clicking on button same task different params depending on activity.

this done using asynctask , in onpostexecute() button state changed.

somebutton.setonclicklistener(new view.onclicklistener() {     @override     public void onclick(view v) {         new task().execute("param1", "param2");     } }  private class task extends asynctask<string, void, string> {      @override     protected string doinbackground(string... params) {          //background task using params[0], params[1]         return "success" or "error";     }      @override     protected void onpostexecute(string result) {          if (result == "success") {             //change somebutton state         }else{             //show error message         } } 

instead of having same asynctask in 6 activities, how can use single asynctask activities , change respective view?

you should create task, methods onsuccess, onfailure , override them.

public class task extends asynctask<string, void, string> {      @override     protected string doinbackground(string... params) {          //background task using params[0], params[1]         return "success" or "error";     }      @override     protected void onpostexecute(string result) {          if (result == "success") {             onsuccess(result);         }else{             onfailure(result);         }     }      protected void onsuccess(string result) {};     protected void onfailure(string result) {}; } 

and in activity use this:

somebutton.setonclicklistener(new view.onclicklistener() {     @override     public void onclick(view v) {         new task(){             @override             protected void onsuccess(string result){                 // want             }             @override             protected void onfailure(string result){                 // want             }         }.execute("param1", "param2");     } }