在android中30分钟后用于自动注销应用程序的内容

I want my application to Automatically signout after 30 minutes.so i am confused with lots of option i have. 1.handlers but i think if i use handler it won't calculate the display sleep time and i can also not able to resume the handler in another activity. 2.AlarmManager I dont know much about it but i think it use more cpu memory. 3.CountDownManager like how i used belowI want my application to Automatically signout