Send data from activity to fragment using Tab Layout with Swipeable Views in Android

Question

I created a Tab Layout with Swipeable Views using this tutorial. I\'m trying to pass a string from Activity to Fragment. I read about fragment communication and couple other top

Answer 1

EDIT: My suggestion is to make the following constructor which takes Bundle object as an argument:

public EnterExitFragment(Bundle bundle) {
    super();
    setArguments(bundle);
}

and call that constructor with bundle object as the argument instead of the default one in your program. That way you're sure to add the bundle before you attach it to your Activity.

Additionally, if that doesn't work, add a Bundle attribute to your EEF class, initialize it within your constructor and refer to it rather than getArguments() method:

public class EnterExitFragment extends Fragment{
    TextView tvFloor1, tvFloor2, tvEmail;
    Button btnSend;
    Integer floorId, segmentId, spaceId, ticketId;
    String floorName, segmentName, spaceName;
    String email;
    Bundle args;

    public EnterExitFragment(Bundle bundle) {
        super();
        args = bundle;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.activity_enter_exit, container, false);

        tvEmail = ((TextView)rootView.findViewById(R.id.textEmail));
        tvFloor1 = ((TextView)rootView.findViewById(R.id.textFloor1));
        tvFloor2 = ((TextView)rootView.findViewById(R.id.textFloor2));
        new FloorFreeSpaces(EnterExitFragment.this).execute();

        btnSend = ((Button)rootView.findViewById(R.id.btnSend));
        btnSend.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new Floor(EnterExitFragment.this).execute();
                email = args.getString("email"); //line 55
                tvEmail.setText(email);
            }
        });
        return rootView;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

Answer 2

I do not see that you set your argument to fragment. If you did, but you forgotten to write please inform me...

Bundle bundle=new Bundle();
bundle.putString("email", "emasiofnasdbjk");
EnterExitFragment enterExitFragment = new EnterExitFragment();
enterExitFragment.setArguments(bundle); // This line is needed...
android.support.v4.app.FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.pager, enterExitFragment);
transaction.addToBackStack(null);
transaction.commit();