setUserVisibleHint method is called before the onCreateView method and does not work on the first load

Question

I am using this method but it is not working for first fragment but on swiping from second to first fragment it working fine. please help me in this. thanks

 @Override
     public void setUserVisibleHint(boolean isVisibleToUser) 
   {
        super.setUserVisibleHint(isVisibleToUser);
        if(isVisibleToUser){   //do Something 
       }
     }

score 1 · Accepted Answer · answered Sep 18 '18 at 06:18

This is how it works

View view;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState)
    {
        //inflate view layout
        view =inflater.inflate(R.layout.your_fragment, container, false);

        // return view
        return view;
    }

and use this

@Override
        public void setUserVisibleHint(boolean isUserVisible)
        {
            super.setUserVisibleHint(isUserVisible);
           // when fragment visible to user and view is not null then enter here.
                if (isUserVisible && view != null)
                {
                   onResume();
                }

        }

and inside onResume put this code

@Override
         public void onResume() { 
         super.onResume();   
            if (!getUserVisibleHint()) {
            return;
          }
      //do your stuff here
   }

score 0 · Answer 2 · edited May 23 '17 at 11:54

0

You really shouldn't rely on the order in which setUserVisibleHint is called when using the support version. From the docs:

Note: This method may be called outside of the fragment lifecycle. and thus has no ordering guarantees with regard to fragment lifecycle method calls.

A similar question has some approaches on this.

edited May 23 '17 at 11:54

Community

1
1

answered Mar 13 '17 at 18:07

Veneet Reddy

2,707
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then how can i load data when tab is visible ?? i guess this is the only method which can help with this situation...YouTube is also using this kind of approach that when user tap then it loads the clicked page – Rahul Mar 14 '17 at 07:11
Are you using a `ViewPager` ? – Veneet Reddy Mar 14 '17 at 08:39
You can use `OnPageChangeListener` to know when a page is selected: https://developer.android.com/reference/android/support/v4/view/ViewPager.OnPageChangeListener.html#onPageSelected(int) – Veneet Reddy Mar 14 '17 at 15:25
but i need to hit a webapi on that fragment so that I can display data on that fragment and this method is used in activity and transfer of data from one page to other is more with this approach – Rahul Mar 15 '17 at 04:14

score 0 · Answer 3 · answered Apr 11 '19 at 13:15

I faced this issue when I was loading data on viewPager Fragments as and when they were visible.To load data only when a particular fragment was visible , I relied on setUserVisibleHint(isVisibleToUser:Boolean) without realising at what point in fragment lifecycle it was being called.

As a result, I was all clueless about a day and two, why the hell where all my variables(present in onCreateView()) were null.Only After going through some stack Answers I realised the mistake I was committing.

setUserVisibleHint() was called even before onCreateView() was called.

So the work around is this . See the highest voted answer here.The guy managed it with Booleans. Hope it helps all the future visitors and save their time.

setUserVisibleHint method is called before the onCreateView method and does not work on the first load

3 Answers3