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POAndroid FragmentActivity/FragmentPagerAdapter and actionBar update onCreateOptionsMenu
 

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  1. POAndroid FragmentActivity/FragmentPagerAdapter and actionBar update onCreateOptionsMenu
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    <p>I have an activity that uses a fragmentpageradapter to create an ics style actionBar. Each page needs to update the actionBar though. Is there a way I can call <code>onCreateOptionsMenu</code> in my <code>onPageSelected</code>?</p> <p>I've trimmed a lot of the code out from the example below for simplicity's sake. </p> <pre><code>public class ListFragmentViewPagerActivity extends FragmentActivity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.thread_view); ViewPager pager = (ViewPager) findViewById(android.R.id.list); pager.setAdapter(new ExamplePagerAdapter(getSupportFragmentManager())); TitlePageIndicator indicator = (TitlePageIndicator)findViewById(R.id.indicator); indicator.setViewPager(pager); indicator.setOnPageChangeListener(new OnPageChangeListener() { @Override public void onPageSelected(int position) { } @Override public void onPageScrollStateChanged(int arg0) { } @Override public void onPageScrolled(int arg0, float arg1, int arg2) { } }); } public class ExamplePagerAdapter extends FragmentPagerAdapter implements TitleProvider{ public ExamplePagerAdapter(FragmentManager fm) { super(fm); } @Override public int getCount() { return URLS.size(); } @Override public Fragment getItem(int position) { Fragment fragment = new ThreadFragment(); // set arguments here, if required Bundle args = new Bundle(); fragment.setArguments(args); return fragment; } @Override public String getTitle(int pos) { return TITLES.get(pos); } } public boolean onCreateOptionsMenu(Menu menu) { MenuInflater menuinflate = new MenuInflater(this); menuinflate.inflate(R.menu.thread_menu, menu); if (type.equals("xda")) { menu.removeItem(R.id.ss_view); } //This worked when I only needed to call it one time. I need to update this menu for each page in my viewPager though. if (isFav) { menu.getItem(2).setIcon(R.drawable.fav_ab); } return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: Intent intent = new Intent(this, MainActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(intent); break; case R.id.ss_view: Intent ssi = new Intent(this, SSActivity.class); ssi.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); Bundle b = new Bundle(); ssi.putExtras(b); startActivity(ssi); break; case R.id.restart: break; case R.id.fav_ab: break; default: return super.onOptionsItemSelected(item); } return false; } } </code></pre> <p><strong>UPDATE</strong> Calling invalidateOptionsMenu() in my onPageSelected() did the trick!</p>
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