service - Restrict 3rd party apps to access Internet except one app in Android -

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i developing android application examination purpose. app used students , professors. student may attempt verify answer other apps using internet during exam. client want's restrict other android apps use internet service when exam app open. possible disable internet access of other apps when particular app open?

no, can't. in 'exame app' can check when activities in foreground or not. if app goes in background, can assume student trying else. about?


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