片段导航问题

Question

I have a fragment which contains a list.Upon selecting one element from the list it navigate to another fragment with some specific data. When I back pressed from fragment 2, I get fragment 1 where the list is showing twice.

fragment1 before back pressed

Fragment1 after back pressed

Below is my fragment transaction code from Fragment1 to Fragment2

    fragmentManager = mainActivityContext.getSupportFragmentManager();
    fragmentTransaction = fragmentManager.beginTransaction();
    SurveyOverView surveyOverView = new SurveyOverView();
    Bundle bundle = new Bundle();
    bundle.putParcelable("SURVEY_QUESTION",surveys.get(position));
    surveyOverView.setArguments(bundle);      fragmentTransaction.replace(R.id.fragment_container,surveyOverView,FRAG_TAG);
    fragmentTransaction.addToBackStack(null);

    fragmentTransaction.commit();

Please help I do not know how to resolve this.

Answer 1

The most possible reason of this issue is you've added data to existing list without clearing its current data first. Post your code for more details.