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POStrange bug / behaviours with ViewPager and ActionBar (Sherlock)
 

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  1. POStrange bug / behaviours with ViewPager and ActionBar (Sherlock)
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    <p>The following bug will happen on an 2.3 device, my setup works fine on 4.x devices. </p> <p>I have a ViewPager with some Fragments in it (they're all of the same class). Every Fragment inflates it's own Menu, because the Menu Items may vary from Fragment to Fragment. </p> <p>For test purposes, I have set up a Menu Item in the ActionBar (the ActionBar is shown on the bottom in the pic because it's a split ActionBar). When the Item is tapped, a TextView in the Fragment should be set to "clicked". This works in the beginning, but after flicking around a bit, this happens: </p> <p>When the Menu Item is tapped, nothing happens. Instead, as soon as I swipe to the next Fragment, the next Fragment sets its TextView to "clicked". It seems like the ActionBar and it's Menu are associated with the next Fragment. </p> <p>Heres a pic </p> <p><img src="https://i.stack.imgur.com/g5C7J.jpg" alt="bug"></p> <p>And heres some code: </p> <p>My Activity: </p> <pre><code>public class MyActivity extends SherlockFragmentActivity implements MyFragment.InvalidateListener { ViewPager viewPager; SectionsPagerAdapter pagerAdapter; public void invalidate() { ActivityCompat.invalidateOptionsMenu(act); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.empty_viewpager); getSupportActionBar().setHomeButtonEnabled(true); getSupportActionBar().setDisplayHomeAsUpEnabled(true); pagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); viewPager = (ViewPager) findViewById(R.id.pager); viewPager.setAdapter(pagerAdapter); viewPager.setCurrentItem(initialIndex); } public class SectionsPagerAdapter extends FragmentPagerAdapter { public SectionsPagerAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int position) { Fragment fragment = new MyFragment(); fragment.setHasOptionsMenu(true); return fragment; } // ... } </code></pre> <p>My Fragment: </p> <pre><code>public class MyFragment extends SherlockFragment { HashSet&lt;ImageView&gt; runningImageTasks = new HashSet&lt;ImageView&gt;(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View v = inflater.inflate(R.layout.fragment_expose, null); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.menu_grundstueckexpose, menu); // ... } @Override public boolean onOptionsItemSelected(MenuItem mitem) { switch (mitem.getItemId()) { case android.R.id.home: getActivity().finish(); return true; case R.id.myitem: textView.setText("clicked"); return true; default: return super.onOptionsItemSelected(mitem); } } } </code></pre> <p>Has anyone else experienced something like this or has an idea on what could be the problem here?</p>
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    1. COCall supportInvalidateOptionsMenu instead of invalidateOptionsMenu
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