So, I have a fragment A, and a fragment B. Fragment A has some data, user presses a Button, goes to fragment B, performs some actions there, and when he is done I need the user to go back to fragment A with some data recovered from fragment B, while the data in fragment A is not recreated, but keeps the data it had in the first time. This shouldn't be so hard, but I am having some problems achieving it.
I can, of course, call fragment A from fragment B, but the data previously existing in fragment A is erased. Or I can go through the backstack to present fragment A again, but how could I pass data from fragment B while maintaining data present in fragment A?
both Fragment
s are attached to same Activity
, so you can introduce some methods in it
private String data = null;
public void storeData(String data){
this.data = data;
}
public void restoreData(){
return data;
}
and call from Fragment
s side
// when B is detached/removed
((MainActivity) getActivity()).storeData(data);
// onCreateView of A?
String restoredData = ((MainActivity) getActivity()).restoreData();
if (restoredData!=null) ...
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