CODEWITHSUNDEEP
androidandroid-viewpager
AndroidDev
AndroidDev

Reputation: 16405

When is onAttachFragment called with a ViewPager

I have a master ActionBarActivity, that contains a ViewPager and a associated ViewPager Adapter. When the code

@Override
        public Fragment getItem(int position) {
            return pageToFragment(position);
        }

is called by swiping the view pager, is the function

 @Override
    public void onAttachFragment(Fragment fragment) {

        super.onAttachFragment(fragment);
        }

called?

Is this function called every time we swipe, or just the first time?

Upvotes: 0

Views: 3095

Answers (1)

Peder
Peder

Reputation: 345

This will not help you any more, but I hope someone else will find this useful. Both functions should be called only once:

getItem() is called, when the fragment has been instantiated the first time with instantiateItem(). instantiateItem() can be called more than once, namely every time, you select a tab with a fragment, that has been destroyed (for example due to the setOffscreenPageLimit()-limit), but getItem() will not be called a second time.

onAttachFragment() is "called when a Fragment is being attached to this activity, immediately after the call to its Fragment.onAttach() method and before Fragment.onCreate()" (taken from here)

Upvotes: 1

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