java - Sending variable between activities -

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• how send object 1 android activity using intents? 31 answers

this question simple. there example 2 activities main activity , main activity 2. how can send string(for example) main activity main activity 2. let's if main activity 2 gets string. calls function change string. , how send changed string main activity?

from main activity 1 send string:

                intent intent = new intent(this, mainactivity2);                 intent.putextra("string", stringval);                 intent.addflags(intent.flag_activity_new_task);                 startactivity(intent); 

then in main activity 2, receive string:

string str = getintent().getextras().getstring("string"); 

then change value , send main activity 1, intent within onresume if want, check nulls.