android - State Loss Management -

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i've activity contains login fragment , activity b contains home fragment. i've start b login fragment after succesfully login request (async). i've callback listener inside login fragment:

onsuccess(result) {     startactivity(b); }

today met nice bug: getting exception "illegalstateexception: can not perform action after onsaveinstancestate".

i think that's not bug, anyway don't know how workaround that. this blog post suggests avoid transaction inside async callback methods, yeah how? commitallowingstateloss() should used last resort: in case, should use inside home fragment transaction in activity b creation method?

basically, should start activity after async callback?

you should use onpostexecute(result) in asynctask:

private class logintask extends asynctask<parameters,...> { ... protected void onpostexecute(long result) {          //if result successful start activityb      } }

onpost fires after asynctask complete. runs on ui thread should solve problem.

put in main activity:

public void  run(){         //code have after task completes     }

then put in onsuccess:

mainactivity.runuionthread()

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