Close the current activity when you only have a reference to Context

If I have a reference to Context, is it possible to finish the current activity?

I don't have the reference to current activity.

yes, with a cast:

((Activity) ctx).finish();

In my Case following worked,

I need to finish my activity in a AsyncTask onPostExcute().

Where my AsyncTask class is separate public class , which has a constructor with param of Context.

((Activity)(mContext)).finish();

Only the above worked for me... Anyway I got this idea from @2red13 and @lucy answers... Thanks to all...

I know it's an old post but, perhaps it could be a good idea to call it this way:

if(context instanceof Activity){
				((Activity)context).finish(); }

This way we make sure we don't get any unnecesary ClassCastExceptions

If you have access to the running view of the Activity you want to finish (for example, you are in a click listener), you could do:

((Activity)getContext()).finish();

(With thanks to 2red13 to get me here).

If you start the activity using:

startActivityForResult(i, 1);

you can call finishActivity(1) to finish any activities started with that request code, like this:

((Activity)getContext()).finishActivity(1);

In my case I need to use one in a handler postDelayed. Using this you can be sure of which activity you are finishing. Hope it helps!

I had the same problem when closing a preference activity. Here is what I did:

public class T2DPreferenceActivity extends PreferenceActivity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
          getFragmentManager().beginTransaction().replace(android.R.id.content,
                new T2DPreferenceFragment()).commit();
    }

    public static class T2DPreferenceFragment extends PreferenceFragment {
        @Override
        public void onCreate(final Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.xml.server_screen_preference);
            Preference testServicePreference = getPreferenceScreen().findPreference("PREFERRED SERVER");
            testServicePreference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
                @Override
                public boolean onPreferenceChange(Preference preference, Object newValue) {
                    T2DPreferenceActivity.closeActivity(getActivity());
                    return true; //returning true still makes the activity handle the change to preferences
                }
            });
        }

        public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
            super.onViewCreated(view, savedInstanceState);
            ListView lv = (ListView)view.findViewById(android.R.id.list);
            ViewGroup parent = (ViewGroup)lv.getParent();
            parent.setPadding(0, 100, 0, 0);
        }
    }

    protected static void closeActivity(Activity activity) {
        activity.finish();
    }
}

Try:

((Activity) context.getApplicationContext()).finish();