java - Code structure with Asynctask Android -

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i guess producing "spaghetti-code". perhabs experts can me write better code solution. following pseudocodes show problem:

i have procedures runs long. procedures show progressbar. use asynctasks achieve this. works fine, code not maintainable anymore :

my wish leave simple code without nesting code :

public void oncreate(bundle savedinstancestate) { longrunningtask1(); dosomething1(); longrunningtask2(); dosomething2(); longrunningtask3(); dosomething3(); longrunningtask4(); dosomething4();  }

my code asynctasks :

    public void oncreate(bundle savedinstancestate) {      new longrunningtask1().execute("task1");  } class longrunningtask1 extends asynctask<string, void, boolean> {         private exception exception;         protected rssfeed doinbackground(string... urls) {             try {                 do;                 return true;             } catch (exception e) {                 return null;             }         }     protected void onprogressupdate(void... values) {         updateprogressbar();     }          protected void onpostexecute(rssfeed feed) {         dosomething1();         new longrunningtask2().execute("task2");         }      } class longrunningtask2 extends asynctask<string, void, boolean> {     similar longrunningtask1          protected void onpostexecute(rssfeed feed) {         dosomething2();         new longrunningtask3().execute("task3");         }  } class longrunningtask3 extends asynctask<string, void, boolean> {     similar longrunningtask2          protected void onpostexecute(rssfeed feed) {         dosomething3();         new longrunningtask4().execute("task4");         } } class longrunningtask4 extends asynctask<string, void, boolean> {     similar longrunningtask3          protected void onpostexecute(rssfeed feed) {         dosomething4();         } }

i avoid nesting calls. can me ?

regards

why want execute them in separate threads? them in single asynctask.

maybe take took @ threadpoolexecutor? used solve similar.


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