如何删除带有操作栏、视图页面和多个片段的选项卡？

我正在使用我找到的代码here https://stackoverflow.com/questions/10082163/actionbarsherlock-tabs-multi-fragments.

public class ActionBarTabs extends SherlockFragmentActivity {
CustomViewPager mViewPager;
TabsAdapter mTabsAdapter;
TextView tabCenter;
TextView tabText;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);

    mViewPager = new CustomViewPager(this);
    mViewPager.setId(R.id.pager);

    setContentView(mViewPager);
    ActionBar bar = getSupportActionBar();
    bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);

    mTabsAdapter = new TabsAdapter(this, mViewPager);

    mTabsAdapter.addTab(bar.newTab().setText("Home"),
            ToolKitFragment.class, null);
    mTabsAdapter.addTab(bar.newTab().setText("FujiSan"),
            FujiFragment.class, null);
}

public static class TabsAdapter extends FragmentPagerAdapter implements
        ActionBar.TabListener, ViewPager.OnPageChangeListener {
    private final Context mContext;
    private final ActionBar mActionBar;
    private final ViewPager mViewPager;
    private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();

    static final class TabInfo {
        private final Class<?> clss;
        private final Bundle args;

        TabInfo(Class<?> _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<?> 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);
        return Fragment.instantiate(mContext, info.clss.getName(),
                info.args);
    }

    @Override
    public void onPageScrolled(int position, float positionOffset,
            int positionOffsetPixels) {
    }

    @Override
    public void onPageSelected(int position) {
        mActionBar.setSelectedNavigationItem(position);
    }

    @Override
    public void onPageScrollStateChanged(int state) {
    }

    @Override
    public void onTabSelected(Tab tab, FragmentTransaction ft) {
        Object tag = tab.getTag();
        for (int i = 0; i < 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) {
    }
}
}

我正在尝试修改它，以便我可以动态删除选项卡。我尝试简单地创建这个函数：

    public void removeTab(ActionBar.Tab tab) {
        mTabs.remove(tab);
        mActionBar.removeTab(tab);
        notifyDataSetChanged();
    }

但我总是得到一个indexoutofboundsException。有谁知道一个好方法来做到这一点？

EDIT

通过将我的方法更改为：

    public void removeTab(ActionBar.Tab tab) {
        mTabs.remove(tab.getTag());
        mActionBar.removeTab(tab);
        notifyDataSetChanged();
    }

我能够成功删除标签。但是，当我删除不是最右侧的选项卡时，与该选项卡关联的视图（或片段？）不会消失。相反，它似乎与下一个最高选项卡相关联。例如，如果我删除了选项卡 0，选项卡 0 的视图只会移动到选项卡 1。如果我删除 ID 最高的选项卡，则选项卡和视图会正确消失，但当我添加新选项卡时会返回。

就好像某个地方有一个与选项卡关联的片段列表，并且删除选项卡不会删除该片段。有谁知道这是什么原因造成的？

EDIT2

我尝试使用以下方法删除片段：

            Fragment fragmentToRemove = getItem(tab.getPosition());
            destroyItem(mViewPager, tab.getPosition(), fragmentToRemove);

and also

        Fragment fragmentToRemove = getItem(tab.getPosition());
        FragmentTransaction fragmentTransaction = mActivity
                .getSupportFragmentManager().beginTransaction();
        fragmentTransaction.remove(fragmentToRemove);
        fragmentTransaction.commit();

但到目前为止，这两种方法都没有奏效。

Got it!

public void removeTab(ActionBar.Tab tab) {
    mTabs.remove(tab.getTag());
    mActionBar.removeTab(tab);
    notifyDataSetChanged();
}

并覆盖 destroyItem

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        // TODO Auto-generated method stub
        super.destroyItem(container, position, object);
        FragmentManager manager = ((Fragment) object).getFragmentManager();
        FragmentTransaction trans = manager.beginTransaction();
        trans.remove((Fragment) object);
        trans.commit();
    }

完美运行！！！