onResume

Called after onRestoreInstanceState(Bundle), onRestart(), or onPause(). This is usually a hint for your activity to start interacting with the user, which is a good indicator that the activity became active and ready to receive input. This sometimes could also be a transit state toward another resting state. For instance, an activity may be relaunched to onPause() due to configuration changes and the activity was visible, but was not the top-most activity of an activity task.

onResume() is guaranteed to be called before onPause() in this case which honors the activity lifecycle policy and the activity eventually rests in onPause().