Unity Android Home Button Lock(Disable Functionality)

Hi,

I'm working on a unity application in which I'm required to override Home Button functionality in Android. To be more detailed about this, the requirement is as follows:

• User opens application

• He choses the current application as default application to be displayed on Pressing Home Button

• After this if user ever presses Home Button, It will not navigate to Home screen but stay in the application

• On clicking a button inside application, it should again set the Home screen as default home button navigation and exits app

This feature has been implemented in Android in 'Toddler Lock' app. But I think they did it natively using Android SDK. I don't have any idea, wether this functionality is feasible in Unity or not ?

Any help will be greatly appreciated.

Thanks