CODEWITHSUNDEEP
androidlockingexit
Nerd
Nerd

Reputation: 185

How do I prevent the user from closing my app?

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?

Upvotes: 14

Views: 32555

Answers (2)

Munawar Manzoor
Munawar Manzoor

Reputation: 69

Android only provide back button override function. It will not allow user to disable home key and recently open key.

But we can replace the home screen to our application in this way first we select our application as a launcher. So, if user press home key the home screen replace to our application and it will only open our application. For this effect add these lines in Manifest file:

<intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.HOME" />
    <category android:name="android.intent.category.DEFAULT" />
</intent-filter>

Upvotes: 3

Kosh
Kosh

Reputation: 6334

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.

Upvotes: 2

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