How to refresh my all instaces of an activity

I am facing an issue

I open Activity A there is some settings --> Go to Activity B ---> 
Go to Activity A ---> Change some settings in activity A ---> Go to Acivity C

In this case If I go back from Activity C I am getting latest setting If I go back I am again I am getting Activity B and again if I go back I am getting Activity A. But in this activity A I am getting the old settings.

How to get latest settings in Activity A here also. Is there any way if i make any change in any activity then if any开发者_如何学C instances of that activity is open those will get the latest data.

Thanks

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Use SharedPreferences to save any kind of data you may need after going back to an activity. Just load the data in activity's onResume() - this is the best way to not lose useful data. Hope this helps.

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startActivity(new Intent(this,activityB);

go to activityB

startActivity(new Intent(this,activityA);//recall activityA

go to activityA

startActivity(new Intent(this,activityC);

to pass data you can use

Bundle b=new Bundle();
b.putInt("hello",3);

myIntent.putExtras(b);
startActivity(myIntent);

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use recreate () in activity A before starting other activity