android - onSaveInstanceState Not writing data -


my application has 2 activity's. need activity save string, used method below.

@override protected void onsaveinstancestate(bundle bundle) {   bundle.putstring("activity", "dados que precisando ser salvos!");   super.onsaveinstancestate(bundle); }

when go second activity above method called, correct behavior in application. upon returning first activity, bundle null, , i'm not understanding why, can me?

@override protected void oncreate(bundle savedinstancestate) {    super.oncreate(savedinstancestate);    if (savedinstancestate != null){    string teste = savedinstancestate.getstring("activity");    } }

override

onrestoreinstancestate() want values extracted :

@override  public void onrestoreinstancestate(bundle savedinstancestate) {   super.onrestoreinstancestate(savedinstancestate);   // restore ui state savedinstancestate.    // bundle has been passed oncreate.    string mystring = savedinstancestate.getstring("activity"); }

best practice use both method in same activity restore , use data other activity, can use shared preference or pass intent.


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