android - Why doesn't the tabwidget remain modified? -

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in android have tabactivity (a) in create single tab called loading activity b.

from activity b modify tabwidget tabactivity add more tabs via static reference tabhost in tabactivity a.

after start new activity c , press tabwidget has 1 single tab called loading.

i've tried in onresume method of activity b recreate tabs doesn't work anymore.

does know why , how can fix it?

relying on static variables pointing ui components (like tabhost) can lead produce memory leaks. don't it. instead register broadcastreceiver in tabactivity add new tabs. way, instead of modifying static variable, send broadcast (context#sendbroadcast(intent)) tell tab activity want new tab.

also, make sure save state of tabactivity, can restore if android os destroys activity reason. recommend using onretainnonconfigurationinstance... this:

private state mstate; public void oncreate(bundle b){     // somewhere in oncreate     mstate = (state) getlastnonconfigurationinstance();     if( mstate == null ){         mstate = new state();     } else {         for(tabspec tab : mstate.tabs){             //add them tab host         }     } } @override public object onretainnonconfigurationinstance() {     return mstate; }  private static class state{     list<tabspec> tabs;     // more stuff want save }

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