Databases
StackOverflow2013
Postsdbo
POAction items from Viewpager initial fragment not being displayed
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAction items from Viewpager initial fragment not being displayed
    primarykey
    data
    text
    <p>In the application I am developing I am using a ViewPager with fragments and each fragment constructs its own menu independently of all of the other fragments in the ViewPager.</p> <p>The issue is that sometimes the fragments that are initialised by the ViewPager by default (i.e in it's initial state) are not having their items populated into the action items menu. What's worse is that this issue only occurs intermittently. If I swipe through the ViewPager enough so that the fragments are forced to re-initialise them selves, when I swipe back, the menu populates correctly.</p> <p>Activity code:</p> <pre><code>package net.solarnz.apps.fragmentsample; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.os.Bundle; import android.support.v13.app.FragmentStatePagerAdapter; import android.support.v4.view.ViewPager; public class FragmentSampleActivity extends Activity { private ViewPagerAdapter mViewPagerAdapter; private ViewPager mViewPager; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); if (mViewPagerAdapter == null) { mViewPagerAdapter = new ViewPagerAdapter(getFragmentManager()); } mViewPager = (ViewPager) findViewById(R.id.log_pager); mViewPager.setAdapter(mViewPagerAdapter); mViewPager.setCurrentItem(0); } private class ViewPagerAdapter extends FragmentStatePagerAdapter { public ViewPagerAdapter(FragmentManager fm) { super(fm); } @Override public int getCount() { return 8; } @Override public Fragment getItem(int position) { Fragment f = Fragment1.newInstance(position); // f.setRetainInstance(true); f.setHasOptionsMenu(true); return f; } } } </code></pre> <p>Fragment code:</p> <pre><code>package net.solarnz.apps.fragmentsample; import android.app.Fragment; import android.os.Bundle; import android.view.Menu; import android.view.MenuInflater; public class Fragment1 extends Fragment { int mNum; static Fragment newInstance(int num) { Fragment1 f = new Fragment1(); // Supply num input as an argument. Bundle args = new Bundle(); args.putInt("num", num); f.setArguments(args); return f; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setHasOptionsMenu(true); mNum = getArguments() != null ? getArguments().getInt("num") : 0; } public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.menu_list, menu); } } </code></pre> <p>Layout:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" &gt; &lt;android.support.v4.view.ViewPager android:id="@+id/log_pager" android:layout_width="match_parent" android:layout_height="match_parent" /&gt; &lt;/LinearLayout&gt; </code></pre> <p>Menu:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;menu xmlns:android="http://schemas.android.com/apk/res/android"&gt; &lt;item android:id="@+id/menu_refresh" android:title="Refresh" android:icon="@android:drawable/ic_delete" android:showAsAction="ifRoom|withText" /&gt; &lt;/menu&gt; </code></pre> <p>Action menu being populated: <a href="https://i.stack.imgur.com/QFMDd.png" rel="noreferrer">http://i.stack.imgur.com/QFMDd.png</a></p> <p>Action menu not being populated: <a href="https://i.stack.imgur.com/sH5Pp.png" rel="noreferrer">http://i.stack.imgur.com/sH5Pp.png</a></p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USsolarnz
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POAction items from Viewpager initial fragment not being displayed
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POAction items from Viewpager initial fragment not being displayed
      1. USKowlown
      1. VTFavorite
    3. VO
      singulars
      1. POAction items from Viewpager initial fragment not being displayed
      1. This table or related slice is empty.
      1. VTUpMod
    1. COAgree with Solarnz that there appears to be no obvious workaround. I have created a [demonstrator app](https://github.com/snodnipper/page-flipper-race-condition/) that allows one to reliably reproduce the problem. The same problem appears to be [reported in ActionBarSherlock](https://github.com/JakeWharton/ActionBarSherlock/issues/351) and I have raised this [issue](http://code.google.com/p/android/issues/detail?id=29472) in the android issue tracker.
      singulars
      1. POAction items from Viewpager initial fragment not being displayed
      1. USsnodnipper
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload