Why does the Up button look like this?

Question

Java

This arrow is also displayed on the main page.

Used the most common method. Maybe I don’t understand something, but help me, I just started learning Java last week, and today I’m developing for Android.
getActionBar().setDisplayHomeAsUpEnabled(true);

Answer 1

So what is your problem?
That the arrow doesn't look the way you want? Then read this .
Or that it is displayed on the main screen? Well, you yourself passed true to the method.