Prevent users from closing or minimizing an android app

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