Save data and change orientation

Question

I have two activities and I use android:configChanges=\"keyboardHidden|orientation|screenSize\"

 @Override
      public void onConfigurationChan         


        

Answer 1

You can save any Object by Overriding public Object onRetainNonConfigurationInstance () and calling getLastNonConfigurationInstance() in your onCreate method.

@Override
    public Object onRetainNonConfigurationInstance() {


    return data;
    }


 public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

         data = getLastNonConfigurationInstance();
    }

but if you do this, you have to change your manifest and code, so the normal process for a configuartion change is used.

Different from the SavedInstance method, this only saves the object if the activity is killed because of a configuaration change