Android - Prevent user from closing app

问题

I've an android application that will be used in a restaurant, so I want that users can't exit from the app. The only thing that users can, is using application.

(If possible only admin can exit from app, by logging in or restarting device, I don't know which is the best way).

Is there a solution or other way to do this?

Thank you very much!

回答1:

What you are looking for is a Kiosk mode app, I remember reading that on 4.2 it is possible to write home screen application that in behaviour will work like that:

http://commonsware.com/blog/2013/02/20/android-4p2-for-kiosk-apps.html

回答2:

you can override the onBackPressed method

@Override 
public void onBackPressed(){  
  Toast.MakeText(getApplicationContext(),"You Are Not Allowed to Exit the App", Toast.LENGTH_SHORT).show();
}

this will prevent the back button from exiting the application.

and then you will need to override the home button as well like

public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_HOME) {
        Log.i("TEST", "Home Button");  // here you'll have to do something to prevent the button to go to the home screen 
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

EDIT: for new devices with android version 4.0.xx you'll have to override the recent apps button as well hope that helps you.

回答3:

You need a Launcher Home app: http://code.tutsplus.com/tutorials/build-a-custom-launcher-on-android--cms-21358

来源：https://stackoverflow.com/questions/15861970/android-prevent-user-from-closing-app