阻止用户关闭或最小化Android应用程序

Question

I have an android app where the client will be let two tablets for experiments.

The question is: Is possible to prevent users from minimizing or closing the app? How can I do that?

Answer 1

Kiosk mode is what you are looking for! It was introduced in Android 4.2.

To enable kiosk mode, set this in your activity_main.xml :

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

This question is most likely a dupe of: Develop app run in kiosk mode in android

Answer 2

I have tested a way... It is done on a fragment, you can test it yourself to do it from an activity

public void onDestroyView() {
    if(condition) {
        Intent intent = new Intent(getContext(), MainActivity.class);
        startActivity(intent);
    }
    super.onDestroyView();
}

This is done from an activity B with a fragment on it, then from the main activity, it returns to activity B. With this, the user can't close the app