How to return from the preferences screen to the main lesson?

Question

I have one main activity and one preference. In my first action, I call the menu and go to the preference function by calling startActivityForResult.

                case R.id.settings:
                startActivityForResult(new Intent(this, SettingsActivity.class), LAUNCH_SETTINGS);
                return true;

Then I change the settings and want to return to the main activity and see the main actions with the new settings. In the onPause () method, do the following (as I understood correctly, this method will be called when I click the "Back" button, right?)

   @Override
     protected void onPause() {
         super.onPause();
         setResult(RESULT_OK, new Intent(this, MainActivity.class));
         finish();
     }

About the main activity

 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == LAUNCH_SETTINGS) {
            if (resultCode == RESULT_OK) {
                new RefreshList().execute(ACTION_SELECT);
                Log.d(TAG, "On activity result");
            }
        }
    }

But my acyncTask is not called or printed. How can I do it right? Thank!

Answer 1

preferenceActivity, startActivityForResult.

startActivityForResult() a PreferenceActivity . PreferenceActivity startActivity(). , PreferenceActivity, , SharedPreferences.

.

SharedPreferences.OnSharedPreferenceChangeListener. , onStart() onResume().

onPause() ( , , "" )?

, . onPause() setResult().