Question

When i am in an Activity say Activity_A, i go to a class_B using the context of Activity_A.

Now when i want to restart the Activity_A from the class_B. I use this

Intent intent = new Intent(context, Activity_A.class);
context.startActivity(intent);

what i want is when i am calling the class_B from various Activities, it must restart the Activity it is called from, using the context which is sent to the class_B from the Activity.

i want to replace Activity_A.class with the Activity which called class_B

Answer 1

In your case you shoud pass a class variable togethe with Context of activity.
e.g. from Actitity_A:

class_B.doMethod(this,Activity_A.class);

And use class variable for start Activity from class_B