Very simple code, but got error “Activity has been destroyed” when use Fragment

Question

I made a very simple Activity which shows a simple ListFragment like below:

My Activity:

public class MyActivity ex         


        

Answer 1

If any one come across similar type of issue:

I was facing same time of issue, but in my case from Main Activity I was calling to Fragment1 and then if user click on Fragment1 Layout I want to launch another Fragment2 Layout.

I was able to launch Fragment1 from Main activity but Fragment1 to Fragment2 it was failing with exception as "Activity has been destroyed" .

I resolved above issue by maintaining FragmentManager object as static in MainActivity class. private static FragmentManager mfragmentManager = null;

calling to both fragment using same above object, resolved my issue.

Below is my Fragment switching code from Main Activity.

public void switchToFragment(String fragmentName){
        Fragment fragment = null;
        switch (fragmentName) {
            case "Fragment1":{
                fragment = new Fragment1();
                break;
            }
            case "Fragment2": {
                fragment = new Fragment2();
                break;
            }
        }

        FragmentTransaction transaction = mfragmentManager.beginTransaction();
        transaction.replace(R.id.fragment_container, fragment);
        transaction.commit();
    }