Example usage for android.support.v4.app FragmentManager getBackStackEntryAt

Introduction

In this page you can find the example usage for android.support.v4.app FragmentManager getBackStackEntryAt.

Prototype

public abstract BackStackEntry getBackStackEntryAt(int index);

Source Link

Document

Return the BackStackEntry at index index in the back stack; entries start index 0 being the bottom of the stack.

Usage

From source file:org.mariotaku.twidere.activity.support.DualPaneActivity.java

@Override
public void onBackStackChanged() {
    if (!isDualPaneMode())
        return;/*w  w w.  ja  va  2  s  . c om*/
    final FragmentManager fm = getSupportFragmentManager();
    final int count = fm.getBackStackEntryCount();
    final Fragment leftPaneFragment = fm.findFragmentById(PANE_LEFT);
    final Fragment rightPaneFragment = fm.findFragmentById(PANE_RIGHT);
    final boolean leftPaneUsed = leftPaneFragment != null && leftPaneFragment.isAdded();
    final boolean rightPaneUsed = rightPaneFragment != null && rightPaneFragment.isAdded();
    if (count > 0) {
        final BackStackEntry entry = fm.getBackStackEntryAt(count - 1);
        if (entry == null)
            return;
        final Fragment fragment = BackStackEntryTrojan.getFragmentInBackStackRecord(entry);
        if (fragment instanceof Panes.Right) {
            showRightPane();
        } else if (fragment instanceof Panes.Left) {
            showLeftPane();
        }
    } else {
        if (fm.findFragmentById(getMainViewId()) != null || leftPaneUsed) {
            showLeftPane();
        } else if (rightPaneUsed) {
            showRightPane();
        }
    }
    updateMainViewVisibility();
}

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From source file:siarhei.luskanau.gps.tracker.free.ui.app.AppController.java

private void logDebug() {
    Log.d(TAG, "###########################");
    FragmentManager fragmentManager = activity.getSupportFragmentManager();
    List<Fragment> fragments = fragmentManager.getFragments();
    if (fragments != null) {
        for (Fragment fragment : fragments) {
            if (fragment != null) {
                Log.d(TAG, "FragmentManager.getFragments: " + fragment.getTag() + ": "
                        + fragment.getClass().getSimpleName());
            } else {
                Log.d(TAG, "FragmentManager.getFragments: null");
            }/*from  w  w  w.  j  a v  a2  s.c o m*/
        }
    }
    for (int i = 0; i < fragmentManager.getBackStackEntryCount(); i++) {
        FragmentManager.BackStackEntry backStackEntry = fragmentManager.getBackStackEntryAt(i);
        Log.d(TAG, "FragmentManager.getBackStackEntryAt: " + i + ": " + backStackEntry.getName());
    }
}

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From source file:org.mariotaku.twidere.activity.DualPaneActivity.java

@Override
public void onBackStackChanged() {
    if (isDualPaneMode()) {
        final FragmentManager fm = getSupportFragmentManager();
        final int count = fm.getBackStackEntryCount();
        final Fragment left_pane_fragment = fm.findFragmentById(PANE_LEFT);
        final Fragment right_pane_fragment = fm.findFragmentById(PANE_RIGHT);
        final View main_view = findViewById(R.id.main);
        final boolean left_pane_used = left_pane_fragment != null && left_pane_fragment.isAdded();
        final boolean right_pane_used = right_pane_fragment != null && right_pane_fragment.isAdded();
        if (count > 0) {
            final BackStackEntry entry = fm.getBackStackEntryAt(count - 1);
            if (entry == null)
                return;
            final Fragment fragment = BackStackEntryTrojan.getFragmentInBackStackRecord(entry);
            if (fragment instanceof Panes.Right) {
                showRightPane();/*from   ww w. j a  va2  s  . c om*/
            } else if (fragment instanceof Panes.Left) {
                showLeftPane();
            }
        } else {
            if (fm.findFragmentById(R.id.main) != null || left_pane_used) {
                showLeftPane();
            } else if (right_pane_used) {
                showRightPane();
            }
        }
        if (main_view != null) {
            main_view.setVisibility(left_pane_used ? View.GONE : View.VISIBLE);
        }
    }
}

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From source file:com.vinexs.eeb.BaseActivity.java

public void addFragment(int viewId, Fragment fragment) {
    if (fragment.isAdded()) {
        return;/*from ww w  . ja va2  s.c om*/
    }
    FragmentManager fragMgr = getSupportFragmentManager();
    FragmentTransaction transaction = fragMgr.beginTransaction();
    BackStackEntry lastEntry = fragMgr.getBackStackEntryCount() == 0 ? null
            : fragMgr.getBackStackEntryAt(fragMgr.getBackStackEntryCount() - 1);
    // Transaction options
    String fragName = fragment.getClass().getSimpleName();
    String breadCrumbTitle;
    String breadCrumbShortTitle;
    Boolean addToBackStack = false;
    int animationEnter = 0;
    int animationExit = 0;
    // Fill options
    Bundle args = fragment.getArguments();
    if (args != null) {
        if (args.containsKey("animationEnter") && args.containsKey("animationExit")) {
            animationEnter = args.getInt("animationEnter");
            animationExit = args.getInt("animationExit");
        }
        if (args.containsKey("breadCrumbTitle")) {
            breadCrumbTitle = args.getString("breadCrumbTitle");
        } else {
            breadCrumbTitle = (lastEntry != null) ? lastEntry.getBreadCrumbTitle().toString()
                    : Utility.getAppName(this);
        }
        if (args.containsKey("breadCrumbShortTitle")) {
            breadCrumbShortTitle = args.getString("breadCrumbShortTitle");
        } else {
            breadCrumbShortTitle = (lastEntry != null) ? lastEntry.getBreadCrumbShortTitle().toString()
                    : Utility.getAppName(this);
        }
        if (args.containsKey("fragmentName")) {
            fragName = args.getString("fragmentName");
        }
        if (args.containsKey("addToBackStack")) {
            addToBackStack = args.getBoolean("addToBackStack");
        }
    } else {
        breadCrumbTitle = (lastEntry != null) ? lastEntry.getBreadCrumbTitle().toString()
                : Utility.getAppName(this);
        breadCrumbShortTitle = (lastEntry != null) ? lastEntry.getBreadCrumbShortTitle().toString()
                : Utility.getAppName(this);
    }
    // Set option to fragment manager
    if (animationEnter != 0 && animationExit != 0) {
        transaction.setCustomAnimations(animationEnter, animationExit);
    }
    if (breadCrumbTitle != null && !breadCrumbTitle.isEmpty()) {
        transaction.setBreadCrumbTitle(breadCrumbTitle);
    }
    if (breadCrumbShortTitle != null && !breadCrumbShortTitle.isEmpty()) {
        transaction.setBreadCrumbShortTitle(breadCrumbShortTitle);
    }
    if (transaction.isAddToBackStackAllowed() && addToBackStack) {
        transaction.addToBackStack(fragName);
    }
    // Add fragment
    transaction.add(viewId, fragment, fragName).commitAllowingStateLoss();
}

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From source file:com.vinexs.eeb.BaseActivity.java

public void replaceFragment(int viewId, Fragment fragment) {
    if (fragment.isAdded()) {
        return;//from w  ww .j  a va2  s . co m
    }
    FragmentManager fragMgr = getSupportFragmentManager();
    FragmentTransaction transaction = fragMgr.beginTransaction();
    BackStackEntry lastEntry = fragMgr.getBackStackEntryCount() == 0 ? null
            : fragMgr.getBackStackEntryAt(fragMgr.getBackStackEntryCount() - 1);
    // Transaction options
    String fragName = fragment.getClass().getSimpleName();
    String breadCrumbTitle;
    String breadCrumbShortTitle;
    Boolean addToBackStack = true;
    int animationEnter = 0;
    int animationExit = 0;
    // Fill options
    Bundle args = fragment.getArguments();
    if (args != null) {
        if (args.containsKey("animationEnter") && args.containsKey("animationExit")) {
            animationEnter = args.getInt("animationEnter");
            animationExit = args.getInt("animationExit");
        }
        if (args.containsKey("breadCrumbTitle")) {
            breadCrumbTitle = args.getString("breadCrumbTitle");
        } else {
            breadCrumbTitle = (lastEntry != null) ? lastEntry.getBreadCrumbTitle().toString()
                    : Utility.getAppName(this);
        }
        if (args.containsKey("breadCrumbShortTitle")) {
            breadCrumbShortTitle = args.getString("breadCrumbShortTitle");
        } else {
            breadCrumbShortTitle = (lastEntry != null) ? lastEntry.getBreadCrumbShortTitle().toString()
                    : Utility.getAppName(this);
        }
        if (args.containsKey("fragmentName")) {
            fragName = args.getString("fragmentName");
        }
        if (args.containsKey("addToBackStack")) {
            addToBackStack = args.getBoolean("addToBackStack");
        }
    } else {
        breadCrumbTitle = (lastEntry != null) ? lastEntry.getBreadCrumbTitle().toString()
                : Utility.getAppName(this);
        breadCrumbShortTitle = (lastEntry != null) ? lastEntry.getBreadCrumbShortTitle().toString()
                : Utility.getAppName(this);
    }
    // Set option to fragment manager
    if (animationEnter != 0 && animationExit != 0) {
        transaction.setCustomAnimations(animationEnter, animationExit);
    }
    if (breadCrumbTitle != null && !breadCrumbTitle.isEmpty()) {
        transaction.setBreadCrumbTitle(breadCrumbTitle);
    }
    if (breadCrumbShortTitle != null && !breadCrumbShortTitle.isEmpty()) {
        transaction.setBreadCrumbShortTitle(breadCrumbShortTitle);
    }
    if (transaction.isAddToBackStackAllowed() && addToBackStack) {
        transaction.addToBackStack(fragName);
    }
    // Replace fragment
    transaction.replace(viewId, fragment, fragName).commitAllowingStateLoss();
}

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From source file:com.afayear.android.client.activity.DualPaneActivity.java

@Override
public void onBackStackChanged() {
    if (isDualPaneMode()) {
        final FragmentManager fm = getSupportFragmentManager();
        final int count = fm.getBackStackEntryCount();
        final Fragment left_pane_fragment = fm.findFragmentById(PANE_LEFT);
        final Fragment right_pane_fragment = fm.findFragmentById(PANE_RIGHT);
        final View main_view = findViewById(R.id.main);
        final boolean left_pane_used = left_pane_fragment != null && left_pane_fragment.isAdded();
        final boolean right_pane_used = right_pane_fragment != null && right_pane_fragment.isAdded();
        if (count > 0) {
            final BackStackEntry entry = fm.getBackStackEntryAt(count - 1);
            if (entry == null)
                return;
            final Fragment fragment = BackStackEntryTrojan.getFragmentInBackStackRecord(entry);
            if (fragment instanceof Panes.Right) {
                showRightPane();/*from   w  w  w  .j  a  va 2  s .  c  o m*/
            } else if (fragment instanceof Panes.Left) {
                showLeftPane();
            }
        } else {
            if (fm.findFragmentById(R.id.main) != null || left_pane_used) {
                showLeftPane();
            } else if (right_pane_used) {
                showRightPane();
            }
        }
        if (main_view != null) {
            final int visibility = left_pane_used ? View.GONE : View.VISIBLE;
            // Visibility changed, so start animation.
            if (main_view.getVisibility() != visibility) {
                final Animation anim = AnimationUtils.loadAnimation(this,
                        left_pane_used ? android.R.anim.fade_out : android.R.anim.fade_in);
                main_view.startAnimation(anim);
            }
            main_view.setVisibility(visibility);
        }
    }
}

---

From source file:com.vinexs.eeb.BaseActivity.java

/**
 * Require setDefaultBackStackListener() ran in onCreate
 *///from   w  w w  . java 2s.c  o m
protected void BackStackSyncStatus() {
    try {
        FragmentManager fragMgr = getSupportFragmentManager();
        int count = fragMgr.getBackStackEntryCount();
        if (count - 1 >= 0) {
            Log.d("TEST", "BackStackSyncStatus::(count - 1 >= 0) == true");
            BackStackEntry entry = fragMgr.getBackStackEntryAt(count - 1);
            String title = (String) entry.getBreadCrumbTitle();
            if (getSupportActionBar() != null) {
                setBackStackTitle(title);
                getSupportActionBar().setHomeButtonEnabled(true);
                if (!hasLeftDrawer && !hasRightDrawer) {
                    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
                }
            }
            if (drawerLayout != null) {
                drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED, GravityCompat.START);
                drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED, GravityCompat.END);
            }
            if (drawerToggle != null) {
                drawerToggle.setDrawerIndicatorEnabled(false);
            }
            onBaseBackStackChanged(false, count);
        } else {
            if (getSupportActionBar() != null) {
                setBackStackTitle(Utility.getAppName(this));
                getSupportActionBar().setHomeButtonEnabled(false);
                if (!hasLeftDrawer && !hasRightDrawer) {
                    getSupportActionBar().setDisplayHomeAsUpEnabled(false);
                }
            }
            if (hasLeftDrawer) {
                drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED, GravityCompat.START);
                if (drawerToggle != null) {
                    drawerToggle.setDrawerIndicatorEnabled(true);
                }
            }
            if (hasRightDrawer) {
                drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED, GravityCompat.END);
            }
            onBaseBackStackChanged(true, count);
        }
        if (drawerToggle != null) {
            drawerToggle.syncState();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:com.doplgangr.secrecy.views.MainActivity.java

void addFragment(final Fragment fragment, int transition1, int transition2) {
    if (mFragmentNameList.contains(fragment.getClass())) {
        mNavigation.setSelectedItem(mFragmentNameList.indexOf(fragment.getClass()));
    }/*  w  w w.ja  v a  2s .c  om*/
    String tag = fragment.getClass().getName();
    FragmentManager manager = getSupportFragmentManager();
    if (manager.getBackStackEntryCount() >= 1) {

        String activeFragmentTag = getSupportFragmentManager()
                .getBackStackEntryAt(getSupportFragmentManager().getBackStackEntryCount() - 1).getName();
        Fragment activeFragment = getSupportFragmentManager().findFragmentByTag(activeFragmentTag);
        // Don't switch fragment if already active
        if (activeFragment.getClass().equals(fragment.getClass())) {
            return;
        }
        //clear all except lowest
        FragmentManager.BackStackEntry first = manager.getBackStackEntryAt(0);
        manager.popBackStackImmediate(first.getId(), FragmentManager.POP_BACK_STACK_INCLUSIVE);
    }
    FragmentTransaction transaction = fragmentManager.beginTransaction()
            .setCustomAnimations(transition1, transition2).replace(R.id.content_frame, fragment, tag);
    if (fragment.getClass() != VaultsListFragment.class) {
        transaction = transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN).addToBackStack(tag);
    }
    transaction.commit();
}

---

From source file:com.androzic.MainActivity.java

@Override
public void addFragment(Fragment fragment, String tag) {
    FragmentManager fm = getSupportFragmentManager();
    // Get topmost fragment
    Fragment parent;// www.jav  a2s.  c  o m
    if (fm.getBackStackEntryCount() > 0) {
        FragmentManager.BackStackEntry bse = fm.getBackStackEntryAt(fm.getBackStackEntryCount() - 1);
        parent = fm.findFragmentByTag(bse.getName());
    } else {
        parent = fm.findFragmentById(R.id.content_frame);
    }
    FragmentTransaction ft = fm.beginTransaction();
    // Detach parent
    ft.detach(parent);
    // Add new fragment to back stack
    ft.add(R.id.content_frame, fragment, tag);
    ft.addToBackStack(tag);
    ft.commit();
}

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From source file:cn.edu.zafu.corepage.base.BaseActivity.java

/**
 * ?fragmnet/*from  w w w  .  jav a2  s .c  o  m*/
 *
 * @return ?Fragment
 */
public BaseFragment getActiveFragment() {
    if (this.isFinishing()) {
        return null;
    }
    FragmentManager manager = this.getSupportFragmentManager();
    if (manager != null) {
        int count = manager.getBackStackEntryCount();
        if (count > 0) {
            String tag = manager.getBackStackEntryAt(count - 1).getName();
            return (BaseFragment) manager.findFragmentByTag(tag);
        }
    }
    return null;
}

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