How to recreate all fragments in ViewPager:

Question

I have this problem, I have a FragmentActivity with a ViewPager and a ViewPagerAdapter.

In this ViewPager I have 3 Fragm

Answer 1

getActivity.recreate() will recreate activity hence all fragments

Answer 2

As been suggested here by @Luksprog, changing my adapter class to this:

public class ViewPagerAdapter extends FragmentPagerAdapter 
{
private List<Fragment> fragments;

/**
 * @param fm
 * @param fragments
 */
public ViewPagerAdapter(FragmentManager fm, List<Fragment> fragments) {
    super(fm);
    this.fragments = fragments;
}

/* (non-Javadoc)
 * @see android.support.v4.app.FragmentPagerAdapter#getItem(int)
 */

@Override
public Fragment getItem(int position) {
    return this.fragments.get(position);
}

/* (non-Javadoc)
 * @see android.support.v4.view.PagerAdapter#getCount()
 */

@Override
public int getCount() {
    return this.fragments.size();
}

@Override
public int getItemPosition(Object object) {
    return POSITION_NONE;
}  
}

Fixed my issue.

what I did was to add this method:

@Override
public int getItemPosition(Object object) {
    return POSITION_NONE;
}  

Answer 3

on @Emil-adz solution we can go little ahead because we got fragment listy in my case called _fragments we can return fragment position like this:

@Override
public int getItemPosition(Object object) {
    /** check if object is fragment class */
    if (object.getClass().isAssignableFrom(Fragment.class)) {
        /** cast object to fragment */
        Fragment customFragment = (Fragment)object;
        /** return fragment position from our list */
        return _fragments.indexOf(customFragment);
    } else {
        /** else re-create */
        return POSITION_NONE;
    }
}

Answer 4

for those who still face the same problem which I faced the same problem when I have ViewPager with seven fragment. the default for these fragments to load the English content from the service but the problem here that I want to change the language from settings activity and after finish settings activity I want ViewPager in main activity to refresh the fragment to match the language selection from the user and load the Arabic content if user choose Arabic here what I did to work from the first trr :D

1. you must use FragmentStatePagerAdapter .*

2. mainActivity I overrided the onResume and did the following

    if (!(mPagerAdapter == null)) {
   
            mPagerAdapter.notifyDataSetChanged();
   
   
        }
   

3. I ovveride the getItemPosition() in mPagerAdapter and make it return POSITION_NONE.

    @Override
        public int getItemPosition(Object object) {
   
            return POSITION_NONE;
        }
   

works like charm