How to start an Activity from a non-Activity class?

Question

Android

Somehow, I didn’t google a sensible answer to this question, that’s why I decided to turn to the Habra community for advice, maybe someone will tell you the correct and concise version.
So there is a class:

public class SlideMenuFragment extends ListFragment {

And at some point there is a need to launch an Activity from this class, but the options listed below do not work:

public Context mContext;<br/>
// .....<br/>
Intent intent = new Intent(mContext, AboutActivity.class);<br/>
mContext.startActivity(intent);

Perhaps someone will tell the young and green how to solve this problem or point where to dig?

Answer 1

ListFragment has a getActivity() method:

final Activity a = getActivity();
Intent intent = new Intent(a, AboutActivity.class);
a.startActivity(intent);

Answer 2

if you edit yours, then you can write like this -
Intent intent = new Intent(this, AboutActivity.class);
mContext.startActivity(intent);