mobile

Hello Guys,

My english is not very good, i'm sorry for that.
I'm developing an app and now i want to have an icon in my actionbar.
i cannot give an example (security from XDA) but de usual icon top left most apps have. Now i only have the title, but on the left side of the title i want the icon.

I tried this:
getActionBar().setIcon(R.drawable.my_icon);
And i tried with android manifest to add: Android:icon and Android:logo to the activity and many other things But none of them works for me.

If i watch videos it looks like the icon should be there by default, but not in my case.

I hope somebody can help me.

Thanks in advance.