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POAndroid getting fragment that is in FragmentPagerAdapter
 

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    <p>I have following problem: I have one activity in which I have two tabs which are made both as fragments using <strong>FragmentPagerAdapter</strong> In some moment I would like to change View of one of these fragments, but I am not able to <strong>findFragmentById()</strong> or <strong>findFragmentByTag()</strong> I am unable to set id, because I am not declaring Fragment in XML, because of the <strong>FragmentPagerAdapter</strong> And when I am trying to set tag I am getting following problem:</p> <pre><code>08-15 21:46:23.805: E/AndroidRuntime(9297): java.lang.IllegalStateException: Can't change tag of fragment Companies{416d7b78 id=0x7f04002e companies}: was companies now android:switcher:2130968622:1 </code></pre> <p>My code of the pager <strong>FragmentPagerAdapter</strong>:</p> <pre><code>public class TabsAdapter extends FragmentPagerAdapter implements ActionBar.TabListener, ViewPager.OnPageChangeListener { private final FragmentActivity mContext; private final ActionBar mActionBar; private final ViewPager mViewPager; private final ArrayList&lt;TabInfo&gt; mTabs = new ArrayList&lt;TabInfo&gt;(); final class TabInfo { private final Class&lt;?&gt; clss; private final Bundle args; TabInfo(Class&lt;?&gt; _class, Bundle _args) { clss = _class; args = _args; } } public TabsAdapter(SherlockFragmentActivity activity, ViewPager pager) { super(activity.getSupportFragmentManager()); mContext = activity; mActionBar = activity.getSupportActionBar(); mViewPager = pager; mViewPager.setAdapter(this); mViewPager.setOnPageChangeListener(this); } public void addTab(ActionBar.Tab tab, Class&lt;?&gt; clss, Bundle args) { TabInfo info = new TabInfo(clss, args); tab.setTag(info); tab.setTabListener(this); mTabs.add(info); mActionBar.addTab(tab); notifyDataSetChanged(); } @Override public int getCount() { return mTabs.size(); } @Override public Fragment getItem(int position) { TabInfo info = mTabs.get(position); FragmentTransaction ft=mContext.getSupportFragmentManager().beginTransaction(); Fragment fragment=Fragment.instantiate(mContext, info.clss.getName(), info.args); if(position==1){ ft.add(mViewPager.getId(), fragment, "companies"); }else{ ft.add(mViewPager.getId(), fragment); } Log.v("FRAGMENT ID", "fragment tag: "+fragment.getTag()); ft.commit(); Log.v("FRAGMENT ID", "fragment tag: "+fragment.getTag()); return fragment; } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { mActionBar.setSelectedNavigationItem(position); new Thread(new Runnable() { @Override public void run() { MainActivity.this.hideKeyboard(); } }).start(); } @Override public void onPageScrollStateChanged(int state) { } @Override public void onTabSelected(Tab tab, FragmentTransaction ft) { Object tag = tab.getTag(); for (int i = 0; i &lt; mTabs.size(); i++) { if (mTabs.get(i) == tag) { mViewPager.setCurrentItem(i); } } } @Override public void onTabUnselected(Tab tab, FragmentTransaction ft) { } @Override public void onTabReselected(Tab tab, FragmentTransaction ft) { } } </code></pre> <p>Thank you in advance for your answers.</p>
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