Refresh Oncreate() After Call To Onresume()

After leaving an activity and later returning to it using the onBackPressed() method I am getting a null pointer exception. Activity A links to Activity B. When going back to A i

Solution 1:

In home class you can set your ALL method.So this Example.May be it's work for you.

public void onResume() {
super.onResume();
referenceXML();
hudSetup();
listenerSetup();
}

or you can used startActivityForResult()

Solution 2:

Have you tried using startActivityForResult() instead of startActivity()?

See Using onResume() to refresh activity