Example usage for android.app FragmentManager getBackStackEntryCount

List of usage examples for android.app FragmentManager getBackStackEntryCount

  1. HOME
  2. Java
  3. android
  4. android.app.*
  5. FragmentManager
  6. getBackStackEntryCount

Introduction

In this page you can find the example usage for android.app FragmentManager getBackStackEntryCount.

Prototype

public abstract int getBackStackEntryCount();

Source Link

Document

Return the number of entries currently in the back stack.

Usage

From source file:android.support.v17.leanback.app.GuidedStepFragment.java

/**
 * Convenient method to pop to fragment with Given class.
 * @param  guidedStepFragmentClass  Name of the Class of GuidedStepFragment to pop to.
 * @param flags Either 0 or {@link FragmentManager#POP_BACK_STACK_INCLUSIVE}.
 *//*from w ww .j a  v  a2 s .  c  o m*/
public void popBackStackToGuidedStepFragment(Class guidedStepFragmentClass, int flags) {
    if (!GuidedStepFragment.class.isAssignableFrom(guidedStepFragmentClass)) {
        return;
    }
    final FragmentManager fragmentManager = getFragmentManager();
    final int entryCount = fragmentManager.getBackStackEntryCount();
    String className = guidedStepFragmentClass.getName();
    if (entryCount > 0) {
        for (int i = entryCount - 1; i >= 0; i--) {
            BackStackEntry entry = fragmentManager.getBackStackEntryAt(i);
            String entryClassName = getGuidedStepFragmentClassName(entry.getName());
            if (className.equals(entryClassName)) {
                fragmentManager.popBackStack(entry.getId(), flags);
                return;
            }
        }
    }
}

From source file:org.opendatakit.survey.activities.MainMenuActivity.java

private void popBackStack() {
    FragmentManager mgr = getFragmentManager();
    int idxLast = mgr.getBackStackEntryCount() - 2;
    if (idxLast < 0) {
        Intent result = new Intent();
        // If we are in a WEBKIT, return the instanceId and the savepoint_type...
        if (this.getInstanceId() != null && currentFragment == ScreenList.WEBKIT) {
            result.putExtra("instanceId", getInstanceId());
            // in this case, the savepoint_type is null (a checkpoint).
        }/*  ww  w . j  ava2  s . c o m*/
        this.setResult(RESULT_OK, result);
        finish();
    } else {
        BackStackEntry entry = mgr.getBackStackEntryAt(idxLast);
        swapToFragmentView(ScreenList.valueOf(entry.getName()));
    }
}

From source file:org.opendatakit.survey.android.activities.MainMenuActivity.java

@Override
public void onBackPressed() {
    FragmentManager mgr = getFragmentManager();
    int idxLast = mgr.getBackStackEntryCount() - 2;
    if (idxLast < 0) {
        Intent result = new Intent();
        // If we are in a WEBKIT, return the instanceId and the savepoint_type...
        if (this.getInstanceId() != null && currentFragment == ScreenList.WEBKIT) {
            result.putExtra("instanceId", getInstanceId());
            // in this case, the savepoint_type is null (a checkpoint).
        }//from  www  .ja  v  a  2  s . c  om
        this.setResult(RESULT_OK, result);
        finish();
    } else {
        BackStackEntry entry = mgr.getBackStackEntryAt(idxLast);
        swapToFragmentView(ScreenList.valueOf(entry.getName()));
    }
}

From source file:org.opendatakit.survey.android.activities.MainMenuActivity.java

@SuppressLint("InlinedApi")
@Override/*from   ww  w .j  a  v a2 s.co m*/
protected void onStart() {
    super.onStart();

    // ensure the DbShimService is started
    Intent intent = new Intent(this, DbShimService.class);
    this.startService(intent);

    this.bindService(intent, mConnection,
            Context.BIND_AUTO_CREATE | ((Build.VERSION.SDK_INT >= 14) ? Context.BIND_ADJUST_WITH_ACTIVITY : 0));

    FrameLayout shadow = (FrameLayout) findViewById(R.id.shadow_content);
    View frags = findViewById(R.id.main_content);
    ODKWebView wkt = (ODKWebView) findViewById(R.id.webkit_view);

    if (currentFragment == ScreenList.FORM_CHOOSER || currentFragment == ScreenList.FORM_DOWNLOADER
            || currentFragment == ScreenList.FORM_DELETER
            || currentFragment == ScreenList.INSTANCE_UPLOADER_TABLE_CHOOSER
            || currentFragment == ScreenList.INSTANCE_UPLOADER
            || currentFragment == ScreenList.INITIALIZATION_DIALOG) {
        shadow.setVisibility(View.GONE);
        shadow.removeAllViews();
        wkt.setVisibility(View.GONE);
        frags.setVisibility(View.VISIBLE);
    } else if (currentFragment == ScreenList.WEBKIT) {
        shadow.setVisibility(View.GONE);
        shadow.removeAllViews();
        wkt.setVisibility(View.VISIBLE);
        wkt.invalidate();
        frags.setVisibility(View.GONE);
    } else if (currentFragment == ScreenList.CUSTOM_VIEW) {
        shadow.setVisibility(View.VISIBLE);
        // shadow.removeAllViews();
        wkt.setVisibility(View.GONE);
        frags.setVisibility(View.GONE);
    }

    FragmentManager mgr = getFragmentManager();
    if (mgr.getBackStackEntryCount() == 0) {
        swapToFragmentView(currentFragment);
    }
}

From source file:org.path.episample.android.activities.MainMenuActivity.java

@SuppressLint("InlinedApi")
@Override//from w  w  w  .j  a va 2  s  . com
protected void onStart() {
    super.onStart();

    // ensure the DbShimService is started
    Intent intent = new Intent(this, DbShimService.class);
    this.startService(intent);

    this.bindService(intent, mConnection,
            Context.BIND_AUTO_CREATE | ((Build.VERSION.SDK_INT >= 14) ? Context.BIND_ADJUST_WITH_ACTIVITY : 0));

    FrameLayout shadow = (FrameLayout) findViewById(R.id.shadow_content);
    View frags = findViewById(R.id.main_content);
    ODKWebView wkt = (ODKWebView) findViewById(R.id.webkit_view);

    if (currentFragment == ScreenList.MAIN_MENU || currentFragment == ScreenList.COLLECT_MODULE
            || currentFragment == ScreenList.SEND_RECEIVE_WIFI_DIRECT_MODULE
            || currentFragment == ScreenList.SEND_RECEIVE_BLUETOOTH_MODULE
            || currentFragment == ScreenList.SELECT_MODULE || currentFragment == ScreenList.NAVIGATE_MODULE
            || currentFragment == ScreenList.RESTORE_MODULE || currentFragment == ScreenList.EDIT_CENSUS_MODULE
            || currentFragment == ScreenList.REMOVE_CENSUS_MODULE
            || currentFragment == ScreenList.INVALIDATE_CENSUS_MODULE
            || currentFragment == ScreenList.FORM_CHOOSER || currentFragment == ScreenList.FORM_DOWNLOADER
            || currentFragment == ScreenList.FORM_DELETER
            || currentFragment == ScreenList.INSTANCE_UPLOADER_TABLE_CHOOSER
            || currentFragment == ScreenList.INSTANCE_UPLOADER
            || currentFragment == ScreenList.INITIALIZATION_DIALOG) {
        shadow.setVisibility(View.GONE);
        shadow.removeAllViews();
        wkt.setVisibility(View.GONE);
        frags.setVisibility(View.VISIBLE);
    } else if (currentFragment == ScreenList.WEBKIT) {
        shadow.setVisibility(View.GONE);
        shadow.removeAllViews();
        wkt.setVisibility(View.VISIBLE);
        wkt.invalidate();
        frags.setVisibility(View.GONE);
    } else if (currentFragment == ScreenList.CUSTOM_VIEW) {
        shadow.setVisibility(View.VISIBLE);
        // shadow.removeAllViews();
        wkt.setVisibility(View.GONE);
        frags.setVisibility(View.GONE);
    }

    FragmentManager mgr = getFragmentManager();
    if (mgr.getBackStackEntryCount() == 0) {
        swapToFragmentView(currentFragment);
    }
}

From source file:de.sourcestream.movieDB.MainActivity.java

/**
 * Pops the last item from the back stack.
 * If searchView is opened it hides it./*from   ww w.  java2  s. c o m*/
 * reAttachMovieFragments re-creates our fragments this is due to a bug in the viewPager
 * restoreMovieDetailsState -> when we press back button we would like to restore our previous (if any)
 * saved state for the current fragment. We use custom backStack since the original doesn't save fragment's state.
 */
@Override
public void onBackPressed() {
    FragmentManager fm = getFragmentManager();

    if (mDrawerLayout.isDrawerOpen(mDrawerList))
        mDrawerLayout.closeDrawer(mDrawerList);
    else {
        if (searchViewItem.isActionViewExpanded())
            searchViewItem.collapseActionView();

        else if (fm.getBackStackEntryCount() > 0) {
            String backStackEntry = fm.getBackStackEntryAt(fm.getBackStackEntryCount() - 1).getName();
            if (backStackEntry.equals("movieList"))
                reAttachMovieFragments = true;

            if (backStackEntry.equals("TVList"))
                reAttachTVFragments = true;

            if (backStackEntry.equals("searchList:1"))
                reAttachMovieFragments = true;

            if (backStackEntry.equals("searchList:2"))
                reAttachTVFragments = true;

            restoreMovieDetailsState = true;
            restoreMovieDetailsAdapterState = false;
            if (orientationChanged)
                restoreMovieDetailsAdapterState = true;

            fm.popBackStack();
        } else {
            super.onBackPressed();
        }
    }

}

From source file:de.sourcestream.movieDB.MainActivity.java

/**
 * First configure the Universal Image Downloader,
 * then we set the main layout to be activity_main.xml
 * and we add the slide menu items.//from  w ww.  j  av  a 2s . co m
 *
 * @param savedInstanceState If non-null, this activity is being re-constructed from a previous saved state as given here.
 */
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_main);

    mTitle = mDrawerTitle = getTitle();

    // load slide menu items
    navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);

    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
    ViewGroup header = (ViewGroup) getLayoutInflater().inflate(R.layout.drawer_header, null, false);
    ImageView drawerBackButton = (ImageView) header.findViewById(R.id.drawerBackButton);
    drawerBackButton.setOnClickListener(onDrawerBackButton);
    mDrawerList.addHeaderView(header);
    mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
    // setting the nav drawer list adapter
    mDrawerList.setAdapter(new ArrayAdapter<>(this, R.layout.drawer_list_item, R.id.title, navMenuTitles));

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    if (toolbar != null) {
        setSupportActionBar(toolbar);
        toolbar.bringToFront();
    }

    mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
            mDrawerLayout, /* DrawerLayout object */
            toolbar, R.string.app_name, // nav drawer open - description for accessibility
            R.string.app_name // nav drawer close - description for accessibility
    ) {
        public void onDrawerClosed(View drawerView) {
            super.onDrawerClosed(drawerView);
            // calling onPrepareOptionsMenu() to show search view
            invalidateOptionsMenu();
            syncState();
        }

        public void onDrawerOpened(View drawerView) {
            super.onDrawerOpened(drawerView);
            // calling onPrepareOptionsMenu() to hide search view
            invalidateOptionsMenu();
            syncState();
        }

        // updates the title, toolbar transparency and search view
        public void onDrawerSlide(View drawerView, float slideOffset) {
            super.onDrawerSlide(drawerView, slideOffset);
            if (slideOffset > .55 && !isDrawerOpen) {
                // opening drawer
                // mDrawerTitle is app title
                getSupportActionBar().setTitle(mDrawerTitle);
                invalidateOptionsMenu();
                isDrawerOpen = true;
            } else if (slideOffset < .45 && isDrawerOpen) {
                // closing drawer
                // mTitle is title of the current view, can be movies, tv shows or movie title
                getSupportActionBar().setTitle(mTitle);
                invalidateOptionsMenu();
                isDrawerOpen = false;
            }
        }

    };
    mDrawerLayout.setDrawerListener(mDrawerToggle);

    // Get the action bar title to set padding
    TextView titleTextView = null;

    try {
        Field f = toolbar.getClass().getDeclaredField("mTitleTextView");
        f.setAccessible(true);
        titleTextView = (TextView) f.get(toolbar);
    } catch (NoSuchFieldException e) {

    } catch (IllegalAccessException e) {

    }
    if (titleTextView != null) {
        float scale = getResources().getDisplayMetrics().density;
        titleTextView.setPadding((int) scale * 15, 0, 0, 0);
    }

    phone = getResources().getBoolean(R.bool.portrait_only);

    searchDB = new SearchDB(getApplicationContext());

    if (savedInstanceState == null) {
        // Check orientation and lock to portrait if we are on phone
        if (phone) {
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        }

        // on first time display view for first nav item
        displayView(1);

        // Use hockey module to check for updates
        checkForUpdates();

        // Universal Loader options and configuration.
        DisplayImageOptions options = new DisplayImageOptions.Builder()
                // Bitmaps in RGB_565 consume 2 times less memory than in ARGB_8888.
                .bitmapConfig(Bitmap.Config.RGB_565).imageScaleType(ImageScaleType.EXACTLY).cacheInMemory(false)
                .showImageOnLoading(R.drawable.placeholder_default)
                .showImageForEmptyUri(R.drawable.placeholder_default)
                .showImageOnFail(R.drawable.placeholder_default).cacheOnDisk(true).build();
        Context context = this;
        File cacheDir = StorageUtils.getCacheDirectory(context);
        // Create global configuration and initialize ImageLoader with this config
        ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(this)
                .diskCache(new UnlimitedDiscCache(cacheDir)) // default
                .defaultDisplayImageOptions(options).build();
        ImageLoader.getInstance().init(config);

        // Check cache size
        long size = 0;
        File[] filesCache = cacheDir.listFiles();
        for (File file : filesCache) {
            size += file.length();
        }
        if (cacheDir.getUsableSpace() < MinFreeSpace || size > CacheSize) {
            ImageLoader.getInstance().getDiskCache().clear();
            searchDB.cleanSuggestionRecords();
        }

    } else {
        oldPos = savedInstanceState.getInt("oldPos");
        currentMovViewPagerPos = savedInstanceState.getInt("currentMovViewPagerPos");
        currentTVViewPagerPos = savedInstanceState.getInt("currentTVViewPagerPos");
        restoreMovieDetailsState = savedInstanceState.getBoolean("restoreMovieDetailsState");
        restoreMovieDetailsAdapterState = savedInstanceState.getBoolean("restoreMovieDetailsAdapterState");
        movieDetailsBundle = savedInstanceState.getParcelableArrayList("movieDetailsBundle");
        castDetailsBundle = savedInstanceState.getParcelableArrayList("castDetailsBundle");
        tvDetailsBundle = savedInstanceState.getParcelableArrayList("tvDetailsBundle");
        currOrientation = savedInstanceState.getInt("currOrientation");
        lastVisitedSimMovie = savedInstanceState.getInt("lastVisitedSimMovie");
        lastVisitedSimTV = savedInstanceState.getInt("lastVisitedSimTV");
        lastVisitedMovieInCredits = savedInstanceState.getInt("lastVisitedMovieInCredits");
        saveInMovieDetailsSimFragment = savedInstanceState.getBoolean("saveInMovieDetailsSimFragment");

        FragmentManager fm = getFragmentManager();
        // prevent the following bug: go to gallery preview -> swap orientation ->
        // go to movies list -> swap orientation -> action bar bugged
        // so if we are not on gallery preview we show toolbar
        if (fm.getBackStackEntryCount() == 0
                || !fm.getBackStackEntryAt(fm.getBackStackEntryCount() - 1).getName().equals("galleryList")) {
            new Handler().post(new Runnable() {
                @Override
                public void run() {
                    if (getSupportActionBar() != null && !getSupportActionBar().isShowing())
                        getSupportActionBar().show();
                }
            });
        }
    }

    // Get reference for the imageLoader
    imageLoader = ImageLoader.getInstance();

    // Options used for the backdrop image in movie and tv details and gallery
    optionsWithFade = new DisplayImageOptions.Builder()
            // Bitmaps in RGB_565 consume 2 times less memory than in ARGB_8888.
            .bitmapConfig(Bitmap.Config.RGB_565).displayer(new FadeInBitmapDisplayer(500))
            .imageScaleType(ImageScaleType.EXACTLY).cacheInMemory(false).showImageOnLoading(R.color.black)
            .showImageForEmptyUri(R.color.black).showImageOnFail(R.color.black).cacheOnDisk(true).build();
    optionsWithoutFade = new DisplayImageOptions.Builder()
            // Bitmaps in RGB_565 consume 2 times less memory than in ARGB_8888.
            .bitmapConfig(Bitmap.Config.RGB_565).imageScaleType(ImageScaleType.EXACTLY).cacheInMemory(false)
            .showImageOnLoading(R.color.black).showImageForEmptyUri(R.color.black)
            .showImageOnFail(R.color.black).cacheOnDisk(true).build();

    // Options used for the backdrop image in movie and tv details and gallery
    backdropOptionsWithFade = new DisplayImageOptions.Builder()
            // Bitmaps in RGB_565 consume 2 times less memory than in ARGB_8888.
            .bitmapConfig(Bitmap.Config.RGB_565).displayer(new FadeInBitmapDisplayer(500))
            .imageScaleType(ImageScaleType.EXACTLY).cacheInMemory(false)
            .showImageOnLoading(R.drawable.placeholder_backdrop)
            .showImageForEmptyUri(R.drawable.placeholder_backdrop)
            .showImageOnFail(R.drawable.placeholder_backdrop).cacheOnDisk(true).build();
    backdropOptionsWithoutFade = new DisplayImageOptions.Builder()
            // Bitmaps in RGB_565 consume 2 times less memory than in ARGB_8888.
            .bitmapConfig(Bitmap.Config.RGB_565).imageScaleType(ImageScaleType.EXACTLY).cacheInMemory(false)
            .showImageOnLoading(R.drawable.placeholder_backdrop)
            .showImageForEmptyUri(R.drawable.placeholder_backdrop)
            .showImageOnFail(R.drawable.placeholder_backdrop).cacheOnDisk(true).build();

    trailerListView = new TrailerList();
    galleryListView = new GalleryList();

    if (currOrientation != getResources().getConfiguration().orientation)
        orientationChanged = true;

    currOrientation = getResources().getConfiguration().orientation;

    iconConstantSpecialCase = 0;
    if (phone) {
        iconMarginConstant = 0;
        iconMarginLandscape = 0;
        DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
        int width = displayMetrics.widthPixels;
        int height = displayMetrics.heightPixels;
        if (width <= 480 && height <= 800)
            iconConstantSpecialCase = -70;

        // used in MovieDetails, CastDetails, TVDetails onMoreIconClick
        // to check whether the animation should be in up or down direction
        threeIcons = 128;
        threeIconsToolbar = 72;
        twoIcons = 183;
        twoIconsToolbar = 127;
        oneIcon = 238;
        oneIconToolbar = 182;
    } else {
        if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
            iconMarginConstant = 232;
            iconMarginLandscape = 300;

            threeIcons = 361;
            threeIconsToolbar = 295;
            twoIcons = 416;
            twoIconsToolbar = 351;
            oneIcon = 469;
            oneIconToolbar = 407;
        } else {
            iconMarginConstant = 82;
            iconMarginLandscape = 0;

            threeIcons = 209;
            threeIconsToolbar = 146;
            twoIcons = 264;
            twoIconsToolbar = 200;
            oneIcon = 319;
            oneIconToolbar = 256;
        }

    }

    dateFormat = android.text.format.DateFormat.getDateFormat(this);
}

From source file:co.taqat.call.LinphoneActivity.java

private void changeFragment(Fragment newFragment, FragmentsAvailable newFragmentType,
        boolean withoutAnimation) {
    FragmentManager fm = getFragmentManager();
    FragmentTransaction transaction = fm.beginTransaction();
    /*/*  ww  w  .  j  a  va 2 s  .c  o m*/
          if (!withoutAnimation && currentFragment.shouldAnimate()) {
             if (newFragmentType.isRightOf(currentFragment)) {
    transaction.setCustomAnimations(R.anim.slide_in_right_to_left,
          R.anim.slide_out_right_to_left,
          R.anim.slide_in_left_to_right,
          R.anim.slide_out_left_to_right);
             } else {
    transaction.setCustomAnimations(R.anim.slide_in_left_to_right,
          R.anim.slide_out_left_to_right,
          R.anim.slide_in_right_to_left,
          R.anim.slide_out_right_to_left);
             }
          }*/

    if (newFragmentType != FragmentsAvailable.DIALER && newFragmentType != FragmentsAvailable.CONTACTS_LIST
            && newFragmentType != FragmentsAvailable.CHAT_LIST
            && newFragmentType != FragmentsAvailable.HISTORY_LIST) {
        transaction.addToBackStack(newFragmentType.toString());
    } else {
        while (fm.getBackStackEntryCount() > 0) {
            fm.popBackStackImmediate(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
        }
    }

    transaction.replace(R.id.fragmentContainer, newFragment, newFragmentType.toString());
    transaction.commitAllowingStateLoss();
    fm.executePendingTransactions();

    currentFragment = newFragmentType;
}

From source file:it.scoppelletti.mobilepower.app.FragmentLayoutController.java

/**
 * Ripristina lo stato dell&rsquo;istanza.
 * // www .  j  a v  a2 s .  c o  m
 * <P>L&rsquo;attivit&agrave; ripristina lo stato dell&rsquo;istanza
 * {@code FragmentLayoutController} all&rsquo;interno del proprio metodo
 * {@code onRestoreInstanceState}.</P>
 * 
 * @param savedInstanceState Stato dell&rsquo;istanza.
 * @param fragmentCollector  Collettore dei frammenti di dettaglio. 
 */
public void onRestoreInstanceState(Bundle savedInstanceState,
        FragmentLayoutController.FragmentCollector fragmentCollector) {
    int n, oldPanelCount, tnId;
    String tag;
    ActivitySupport activitySupport;
    FragmentSupport fragment;
    FragmentManager fragmentMgr;
    FragmentLayoutController.BackStackChangedListener backStackListener;
    Queue<FragmentSupport> fragmentQueue;
    Queue<FragmentLayoutController.FragmentEntry> clonedQueue;

    if (savedInstanceState == null) {
        throw new NullPointerException("Argument savedInstanceState is null.");
    }
    if (fragmentCollector == null) {
        throw new NullPointerException("Argument fragmentCollector is null.");
    }

    if (!(myActivity instanceof ActivitySupport)) {
        myLogger.warn("Activity not implement interface ActivitySupport.");
        return;
    }

    oldPanelCount = savedInstanceState.getInt(FragmentLayoutController.STATE_PANELCOUNT, 0);
    if (oldPanelCount < 1) {
        myLogger.warn("Unexpected {}={} in saved instance state.", FragmentLayoutController.STATE_PANELCOUNT,
                oldPanelCount);
        return;
    }

    myLogger.debug("{}: current={}, saved instance state={}.",
            new Object[] { FragmentLayoutController.STATE_PANELCOUNT, myFrameCount, oldPanelCount });
    if (oldPanelCount == myFrameCount) {
        // Il numero di pannelli non e' cambiato:
        // Il sistema ha gia' ripristinato correttamente i frammenti.
        return;
    }

    fragmentQueue = new ArrayDeque<FragmentSupport>();
    fragmentCollector.collectFragments(fragmentQueue);

    // Ad ogni frammento associo il tag con il quale &egrave; stato
    // inserito
    clonedQueue = new ArrayDeque<FragmentLayoutController.FragmentEntry>();
    while (!fragmentQueue.isEmpty()) {
        fragment = fragmentQueue.remove();
        if (fragment == null) {
            myLogger.warn("Ignoring null.");
            continue;
        }

        tag = fragment.asFragment().getTag();
        if (StringUtils.isBlank(tag)) {
            myLogger.warn("Ignoring fragment with empty tag.");
            continue;
        }

        clonedQueue.offer(new FragmentLayoutController.FragmentEntry(fragment.cloneFragment(), tag));
    }

    fragmentQueue = null; // free memory

    activitySupport = (ActivitySupport) myActivity;
    fragmentMgr = activitySupport.getSupportFragmentManager();

    // Ripristino la configurazione dei frammenti iniziale
    for (n = fragmentMgr.getBackStackEntryCount(); n > 0; n--) {
        fragmentMgr.popBackStack();
    }

    if (myFrameCount > 1) {
        tnId = arrangeFragments(fragmentMgr, clonedQueue);
    } else {
        tnId = arrangePanel(fragmentMgr, clonedQueue);
    }

    if (Build.VERSION.SDK_INT < BuildCompat.VERSION_CODES.HONEYCOMB) {
        return;
    }

    // - Android 4.1.2
    // La barra delle azioni non e' correttamente aggiornata forse perche'
    // si assume che non ce ne sia bisogno con transazioni schedulate
    // durante il ripristino dell'attivita' (o magari perche' non e' proprio
    // previsto che si schedulino transazioni durante il ripristino
    // dell'attivita'):
    // Visto che l'esecuzione delle transazioni e' asincrona, devo
    // utilizzare un gestore degli eventi di modifica del back stack che
    // gestisca l&rsquo;ultima transazione che ho schedulato.
    backStackListener = new FragmentLayoutController.BackStackChangedListener(myActivity, fragmentMgr, tnId);
    fragmentMgr.addOnBackStackChangedListener(backStackListener);
}

From source file:com.lgallardo.youtorrentcontroller.RefreshListener.java

@Override
public void onResume() {
    super.onResume();
    activityIsVisible = true;// w w w . j a  v  a2 s. c om

    // Handle Item list empty due to Fragment stack
    try {

        FragmentManager fm = getFragmentManager();
        FragmentTransaction fragmentTransaction = fm.beginTransaction();

        if (fm.getBackStackEntryCount() == 0 && firstFragment.getSecondFragmentContainer() == R.id.one_frame
                && fm.findFragmentById(
                        R.id.one_frame) instanceof com.lgallardo.youtorrentcontroller.ItemstFragment) {

            com.lgallardo.youtorrentcontroller.ItemstFragment fragment = (com.lgallardo.youtorrentcontroller.ItemstFragment) fm
                    .findFragmentById(R.id.one_frame);

            if (fragment.getListView().getCount() == 0) {

                // Create the about fragment
                aboutFragment = new AboutFragment();

                fragmentTransaction.replace(R.id.one_frame, aboutFragment, "firstFragment");

                fragmentTransaction.commit();

                // Se titile
                //                    setTitle(navigationDrawerItemTitles[drawerList.getCheckedItemPosition()]);
                setTitle(navigationDrawerItemTitles[DrawerItemRecyclerViewAdapter.actionPosition]);

                // Close Contextual Action Bar
                if (firstFragment != null && firstFragment.mActionMode != null) {
                    firstFragment.mActionMode.finish();
                }

                // Refresh current list
                refreshCurrent();
            }

        }
        if (fm.getBackStackEntryCount() == 0 && firstFragment.getSecondFragmentContainer() == R.id.content_frame
                && (fm.findFragmentByTag("secondFragment") instanceof AboutFragment)) {

            // Create the about fragment
            aboutFragment = new AboutFragment();

            fragmentTransaction.replace(R.id.content_frame, aboutFragment, "secondFragment");

            fragmentTransaction.commit();

            // Set title
            setTitle(navigationDrawerItemTitles[DrawerItemRecyclerViewAdapter.actionPosition]);

            // Close Contextual Action Bar
            if (firstFragment != null && firstFragment.mActionMode != null) {
                firstFragment.mActionMode.finish();
            }

            // Refresh current list
            refreshCurrent();

        }
    } catch (Exception e) {

    }
}