Unable to pass data from MainActivity to ViewPager Fragments

Question

In my Android program, I've three Fragments wrapped in a ViewPager . I have an ArrayList<MyObject> which is filled inside the onResume() method of the MainActivity . How can I send this ArrayList<MyObject> from the MainActivity to child Fragments ? What I want is to update my fragment with the ArrayList<MyObject> , whenever the app comes to foreground. There are a lot of solutions for this specific problem, but none of them is working for me. I've already tried using Bundles to pass arguments to my Fragments . For testing, I'm trying to pass simple int value to child fragment: In the onCreate() of MainActivity :

Bundle bundle = new Bundle();
bundle.putInt("INTEGER",2);

In the onResume() of MainActivity :

Fragment frag = MyFragPageAdapter.getItem(1);
frag.setArguments(bundle);

In the onCreate() method of my Fragment :

final Bundle args = getArguments();
final int myInt = args.getInt("INTEGER");
Log.v("IN FOREGROUND", myInt+"");

Can anyone please help me? Thanks in advance!

Adapter:

public class MyFragPageAdapter extends FragmentPagerAdapter implements IconTabProvider {

    private final int[] ICONS = { R.drawable.ic_action_cc_bcc, R.drawable.ic_action_call, 
            R.drawable.ic_action_chat};
    private final String[] tabTitles = {"Contacts", "Calls", "Messages" };

    public FragmentPageAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int arg0) {
        switch (arg0) {
        case 0:
            return new ContactList();
        case 1:
            return new DialPad();
        case 2:
            return new BlockedList();
        default:
            break;
        }

        return null;
    }

    @Override
    public int getCount() {
        return 3;
    }

    @Override
    public int getPageIconResId(int position) {
        // TODO Auto-generated method stub
        return ICONS[position];
    }

    /* (non-Javadoc)
     * @see android.support.v4.view.PagerAdapter#getPageTitle(int)
     */
    @Override
    public CharSequence getPageTitle(int position) {
        // TODO Auto-generated method stub
        return tabTitles[position];
    }

Answer 1

Inside the constructor of ContactList try put the arguements and check .

Bundle bundle = new Bundle();
bundle.putInt("INTEGER",2);
Fragment frag = MyFragPageAdapter.getItem(1);
frag.setArguments(bundle);

Answer 2

first make your object of your arraylist "Serializable"

than

in fragment A

String TabOfFragmentB = ((AndroidViewPagerActivity)getActivity()).getTabFragmentB();
MyFragmentB fragmentB = (MyFragmentB)getActivity()
 .getSupportFragmentManager()
 .findFragmentByTag(TabOfFragmentB);
fragmentB.sendData(yourArraylist<Object>);

in fragment B

global decalaration

private void myResultedData= null;

outside onCreateView

public yourArraylist<Object> sendData(yourArraylist<Object> t){
myResultedData = t;
}

use "myResultedData" in onCreateView

for more details and understand the concept of communication between fragments of view pager refer link