Question

I would like to secure settings tab on lenovo tablet device with a password. What is a simple way of going about this? Code is welcome too (I think I might need to code but if you think an google play marketplace app would solve my problem please post your suggestion below).

Edit: I have researched and posted on lenovo forums already which I always do before posting here and it takes them a week just for simple question sometimes to respond.
Please if iam too vague say so below because -2 does not help me one bit.

Here’s more more information for why iam trying to do this:

I work at a K-12 system with high students always testing my wits.
Without the password kids/students can add their own account or change settings for the tablet doing things that could hurt the school system legally (download playboy, using the devices to distribute viruses and malware, and the list goes on

Answer 1

Unfortunately for the purposes of what you’re doing, Android doesn’t really allow for keeping the “primary user”, so to speak, out of the settings application. I’m not personally aware of any existing “lock” type applications, but they might exist; you might be better off asking on Android Enthusiasts for that.

There are a few hack-y type things you can do programmatically, however, without modifying the OS. The one I’ve seen work the most effectively for similar tasks is to code a Service with a Thread more or less continuously polling the ActivityManager for a list of running tasks (getRunningTasks()), checking on fixed intervals (perhaps once a second?) then, if the unwanted Activity is detected in the foreground (I believe that the Settings app component name is android.app.Settings), Launch a Password Activity. If the user successfully authenticates, simply finish() the password Activity. Otherwise, start the home activity (effectively clearing the Activity stack) with an android.action.HOME intent