AsyncTask methods can run on the UI thread, but one of them doesn't run on this UI thread, which one?

Latest layout proposed by the android sdk?

Which type of file are Android layouts read from?

Which system service does Android rely on for the Linux kernel?

Can the ActionBarCompat library propose ActionBar features for old phones?

Which is Android's main programming language ?

Suppose Screen1 is the main screen of an Android application MyAndroid. Now if another screen, Screen2 has to be opened from Screen1, then which of the following are true?

Which of the following are true?

Which one correctly adds a string array resource to strings.xml?

When publishing updates to an app on the Google Play Store, which of the following are true?

If the intent has extra integer information passed to it with a name of 'message', we can retrieve that information using which of the following?