Android can I Make App controll Android System
I want to create App that Make My Device with multi-Users "username and password for every user"
Users can share the Device , every user can open different Apps "Ex. Camera , Contacts" and prevent from another app 

the App must run at system Start up    request your username and password  and then

the App will Make You Run Some App and Prevent you from some App
Android can I Make App controll Android System
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I want to create App that Make My Device with multi-Users "username and password for every user"
Users can share the Device , every user can open different Apps "Ex. Camera , Contacts" and prevent from another app 

the App must run at system Start up    request your username and password  and then

the App will Make You Run Some App and Prevent you from some App