android - A question of optimisation and memory -


i want know when im starting activity using intent main activity(main) still in memory when im in subactivity?

read basics related activity lifecycle http://developer.android.com/reference/android/app/activity.html if want clear(close) main-activity after starting new one(sub-activity) using intent, have close it(main activity) manually. android going take care of things related activity lifecycle, why want close main-activity?


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