ListView selection does not change

Question

In my app I have activity which contains two fragments.

The first fragment contains ViewPager which contains a few fragments(the first fragment of viewpager fragments contains ListView). The second fragment is simple settings fragment. For example, I have checked the second element on the ListView, I click settings and my second fragment from activity opens. I click back button and I go back to my ListView, then I call :

listView.setItemChecked(0, true);
listView.setSelection(0);

But this does not work, the second element is still checked... I go from ViewPager to the second fragment in below way:

getSupportFragmentManager().beginTransaction()
                .replace(R.id.slpdActivityLayout, fragment).addToBackStack(null).commit();

Why my selection does not work only when I press back button?

Answer 1

It's about the lifecycle of your fragment like seen -> here <- you cant do UI updates in onCreateView . so place your code to onStart or better onResume .

remove:

public void onCreateView() {
    listView.setItemChecked(0, true);
    listView.setSelection(0);
}

add:

public void onResume() {
    listView.setItemChecked(0, true);
    listView.setSelection(0);
}