Just use startLockTask()
and trigger the easiest and stronged, app
managed, kiosk mode available for Android on the Market.
SparkEMM is the most convenient way to setup your devices with Android lockTask.
Don't be afraid of user and employee interaction. With Spark EMM, your devices are
in the safest state, sturdly bound to your allowed applications. State of the art
support for the new Android Management API is already here.