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

Question

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

I don\'t have the reference to current activity.

Answer 1

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();
    }
}