Example usage for android.support.v4.app FragmentTransaction add

List of usage examples for android.support.v4.app FragmentTransaction add

  1. HOME
  2. Java
  3. android
  4. android.support.v4.app.*
  5. FragmentTransaction
  6. add

Introduction

In this page you can find the example usage for android.support.v4.app FragmentTransaction add.

Prototype

public abstract FragmentTransaction add(int containerViewId, Fragment fragment, String tag);

Source Link

Document

Add a fragment to the activity state.

Usage

From source file:com.learnncode.mediachooser.activity.BucketHomeFragmentActivity.java

@SuppressLint("ResourceAsColor")
@Override/*from  w ww  . j  a v a 2 s.c  o m*/
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_home_media_chooser);

    headerBarTitle = (TextView) findViewById(R.id.titleTextViewFromMediaChooserHeaderBar);
    headerBarCamera = (ImageView) findViewById(R.id.cameraImageViewFromMediaChooserHeaderBar);
    headerBarBack = (ImageView) findViewById(R.id.backArrowImageViewFromMediaChooserHeaderView);
    headerBarDone = (TextView) findViewById(R.id.doneTextViewViewFromMediaChooserHeaderView);
    mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);

    headerBarTitle.setText(getResources().getString(R.string.video));
    headerBarCamera.setBackgroundResource(R.drawable.ic_video_unselect_from_media_chooser_header_bar);
    headerBarCamera.setTag(getResources().getString(R.string.video));

    headerBarBack.setOnClickListener(clickListener);
    headerBarCamera.setOnClickListener(clickListener);
    headerBarDone.setOnClickListener(clickListener);

    if (!MediaChooserConstants.showCameraVideo) {
        headerBarCamera.setVisibility(View.GONE);
    }

    mTabHost.setup(this, getSupportFragmentManager(), R.id.realTabcontent);

    if (MediaChooserConstants.showVideo) {
        mTabHost.addTab(
                mTabHost.newTabSpec("tab2")
                        .setIndicator(getResources().getString(R.string.videos_tab) + "      "),
                BucketVideoFragment.class, null);
    }

    if (MediaChooserConstants.showImage) {
        mTabHost.addTab(
                mTabHost.newTabSpec("tab1")
                        .setIndicator(getResources().getString(R.string.images_tab) + "      "),
                BucketImageFragment.class, null);
    }

    mTabHost.getTabWidget().setBackgroundColor(getResources().getColor(R.color.tabs_color));

    for (int i = 0; i < mTabHost.getTabWidget().getChildCount(); i++) {

        View childView = mTabHost.getTabWidget().getChildAt(i);
        TextView textView = (TextView) childView.findViewById(android.R.id.title);

        if (textView.getLayoutParams() instanceof RelativeLayout.LayoutParams) {

            RelativeLayout.LayoutParams params = (android.widget.RelativeLayout.LayoutParams) textView
                    .getLayoutParams();
            params.addRule(RelativeLayout.CENTER_HORIZONTAL);
            params.addRule(RelativeLayout.CENTER_VERTICAL);
            params.height = RelativeLayout.LayoutParams.MATCH_PARENT;
            params.width = RelativeLayout.LayoutParams.WRAP_CONTENT;
            textView.setLayoutParams(params);

        } else if (textView.getLayoutParams() instanceof LinearLayout.LayoutParams) {
            LinearLayout.LayoutParams params = (android.widget.LinearLayout.LayoutParams) textView
                    .getLayoutParams();
            params.gravity = Gravity.CENTER;
            textView.setLayoutParams(params);
        }
        textView.setTextColor(getResources().getColor(R.color.tabs_title_color));
        textView.setTextSize(convertDipToPixels(10));
    }

    ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
            .setTextColor(getResources().getColor(R.color.headerbar_selected_tab_color));
    ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
            .setTextColor(Color.WHITE);

    mTabHost.setOnTabChangedListener(new OnTabChangeListener() {

        @Override
        public void onTabChanged(String tabId) {

            android.support.v4.app.FragmentManager fragmentManager = getSupportFragmentManager();
            BucketImageFragment imageFragment = (BucketImageFragment) fragmentManager.findFragmentByTag("tab1");
            BucketVideoFragment videoFragment = (BucketVideoFragment) fragmentManager.findFragmentByTag("tab2");
            android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

            if (tabId.equalsIgnoreCase("tab1")) {

                headerBarTitle.setText(getResources().getString(R.string.image));
                headerBarCamera.setBackgroundResource(R.drawable.selector_camera_button);
                headerBarCamera.setTag(getResources().getString(R.string.image));

                if (imageFragment == null) {
                    BucketImageFragment newImageFragment = new BucketImageFragment();
                    fragmentTransaction.add(R.id.realTabcontent, newImageFragment, "tab1");

                } else {

                    if (videoFragment != null) {
                        fragmentTransaction.hide(videoFragment);
                    }

                    fragmentTransaction.show(imageFragment);

                }
                ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
                        .setTextColor(getResources().getColor(R.color.headerbar_selected_tab_color));
                ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
                        .setTextColor(Color.WHITE);

            } else {
                headerBarTitle.setText(getResources().getString(R.string.video));
                headerBarCamera.setBackgroundResource(R.drawable.selector_video_button);
                headerBarCamera.setTag(getResources().getString(R.string.video));

                if (videoFragment == null) {

                    final BucketVideoFragment newVideoFragment = new BucketVideoFragment();
                    fragmentTransaction.add(R.id.realTabcontent, newVideoFragment, "tab2");

                } else {

                    if (imageFragment != null) {
                        fragmentTransaction.hide(imageFragment);
                    }

                    fragmentTransaction.show(videoFragment);
                }

                ((TextView) (mTabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.title)))
                        .setTextColor(Color.WHITE);
                ((TextView) (mTabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.title)))
                        .setTextColor(getResources().getColor(R.color.headerbar_selected_tab_color));

            }

            fragmentTransaction.commit();
        }
    });

    RelativeLayout.LayoutParams params = (android.widget.RelativeLayout.LayoutParams) headerBarCamera
            .getLayoutParams();
    params.height = convertDipToPixels(40);
    params.width = convertDipToPixels(40);
    headerBarCamera.setLayoutParams(params);
    headerBarCamera.setScaleType(ScaleType.CENTER_INSIDE);
    headerBarCamera.setPadding(convertDipToPixels(15), convertDipToPixels(15), convertDipToPixels(15),
            convertDipToPixels(15));

}

From source file:com.dirkgassen.wator.ui.activity.MainActivity.java

/**
 * Shows the "new world" fragment if it was hidden.
 * @return {@code true} if the fragment was not visible; {@code false} otherwise
 *///from  ww  w  .  j a v  a2 s  .  c  o  m
synchronized private boolean showNewWorldFragment() {
    if (newWorldView.getVisibility() == View.GONE) {
        FragmentManager fm = getSupportFragmentManager();
        FragmentTransaction ft = fm.beginTransaction();
        Fragment newWorldFragment = new NewWorld();
        ft.add(R.id.new_world_fragment_container, newWorldFragment, NEW_WORLD_FRAGMENT_TAG);
        ft.commit();
        fm.executePendingTransactions();
        newWorldView.startAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_in_down));
        newWorldView.setVisibility(View.VISIBLE);
        return true;
    }
    return false;
}

From source file:com.launcher.silverfish.launcher.appdrawer.TabFragmentHandler.java

private void attachTabFragment(TabInfo tab, FragmentTransaction ft) {
    // Retrieve the fragment
    String fragment_tag = tab.getTag();
    AppDrawerTabFragment fragment = (AppDrawerTabFragment) mFragmentManager.findFragmentByTag(fragment_tag);

    // Attach it to the UI if an instance already exists, otherwise create a new instance and add it.
    if (fragment == null) {
        // send the tab id to each tab
        Bundle args = new Bundle();
        args.putLong(Constants.TAB_ID, tab.getId());

        fragment = new AppDrawerTabFragment();
        fragment.setArguments(args);/*from   ww w  .j  av a2s  . c o m*/

        ft.add(R.id.realtabcontent, fragment, fragment_tag);
    } else {
        ft.attach(fragment);
    }
}

From source file:com.launcher.silverfish.TabFragmentHandler.java

private void attachTabFragment(TabInfo tab, FragmentTransaction ft) {
    // Retrieve the fragment
    String fragment_tag = tab.getTag();
    AppDrawerTabFragment fragment = (AppDrawerTabFragment) mFragmentManager.findFragmentByTag(fragment_tag);

    // Attach it to the UI if an instance already exists, otherwise create a new instance and add it.
    if (fragment == null) {

        // send the tab id to each tab
        Bundle args = new Bundle();
        args.putInt(Constants.TAB_ID, tab.getId());

        fragment = new AppDrawerTabFragment();
        fragment.setArguments(args);// ww w .j a  v  a 2  s .c  om

        ft.add(R.id.realtabcontent, fragment, fragment_tag);
    } else {
        ft.attach(fragment);
    }
}

From source file:com.app.blockydemo.ui.ScriptActivity.java

private void updateCurrentFragment(int fragmentPosition, FragmentTransaction fragmentTransaction) {
    boolean fragmentExists = true;
    currentFragmentPosition = fragmentPosition;

    switch (currentFragmentPosition) {
    case FRAGMENT_SCRIPTS:
        if (scriptFragment == null) {
            scriptFragment = new ScriptFragment();
            fragmentExists = false;/*from  ww w .j ava 2  s  .  c o m*/
            currentFragmentTag = ScriptFragment.TAG;
        }
        currentFragment = scriptFragment;
        break;
    case FRAGMENT_LOOKS:
        break;
    case FRAGMENT_SOUNDS:
        break;
    }

    updateHandleAddButtonClickListener();

    if (fragmentExists) {
        fragmentTransaction.show(currentFragment);
    } else {
        fragmentTransaction.add(R.id.script_fragment_container, currentFragment, currentFragmentTag);
    }
}

From source file:com.gelakinetic.mtgfam.activities.MainActivity.java

/**
 * //from www . j  a  v  a  2 s. c  om
 * @param containerId The resource id of the container view
 * @param frag The fragment to be added
 * @param tag Optional tag name for the fragment, to later retrieve the fragment with FragmentManager.findFragmentByTag(String)
 * @param addToBackStack Add this transaction to the back stack. This means that the transaction will be remembered after it is committed, and will reverse its operation when later popped off the stack.
 * @param replace Set this to true to replace the fragment in the container, or false to add the fragment to the container
 */
private void attachFragment(int containerId, FamiliarFragment frag, String tag, boolean addToBackStack,
        boolean replace) {
    FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
    if (replace) {
        ft.replace(containerId, frag, tag);
    } else {
        ft.add(containerId, frag, tag);
    }
    if (addToBackStack) {
        ft.addToBackStack(null);
    }
    ft.commit();
}

From source file:co.vmob.sample.FragmentTabHost.java

private FragmentTransaction doTabChanged(String tabId, FragmentTransaction ft) {
    TabInfo newTab = null;/*from   w  ww .  j a  va 2  s  . c  om*/
    FragmentTransaction transaction = ft;

    for (int i = 0; i < mTabs.size(); i++) {
        final TabInfo tab = mTabs.get(i);
        if (tab.tag.equals(tabId)) {
            newTab = tab;
        }
    }

    if (newTab == null) {
        throw new IllegalStateException("No tab known for tag " + tabId);
    }

    if (mLastTab != newTab) {
        if (transaction == null) {
            transaction = mFragmentManager.beginTransaction();
        }

        if (mLastTab != null) {
            if (mLastTab.fragment != null) {
                transaction.detach(mLastTab.fragment);
            }
        }

        if (newTab.fragment == null) {
            newTab.fragment = Fragment.instantiate(mContext, newTab.clss.getName(), newTab.args);
            transaction.add(android.R.id.tabcontent, newTab.fragment, newTab.tag);
        } else {
            transaction.attach(newTab.fragment);
        }

        mLastTab = newTab;
    }

    return transaction;
}

From source file:com.androzic.MainActivity.java

private void selectItem(int position) {
    if (mDrawerAdapter.getSelectedItem() == position)
        return;//w ww. ja  v  a  2s . c  om

    DrawerItem item = mDrawerItems.get(position);
    // Actions
    if (item.type == DrawerItem.ItemType.INTENT) {
        if (position > 0)
            startActivity(item.intent);
    }
    // Fragments
    else if (item.type == DrawerItem.ItemType.FRAGMENT) {
        FragmentManager fm = getSupportFragmentManager();
        if (fm.getBackStackEntryCount() > 0) {
            fm.popBackStackImmediate(0, FragmentManager.POP_BACK_STACK_INCLUSIVE);
        }
        FragmentTransaction ft = fm.beginTransaction();
        Fragment parent = fm.findFragmentById(R.id.content_frame);
        if (parent != null) {
            ft.detach(parent);
        }
        Fragment fragment = fm.findFragmentByTag(item.name);
        if (fragment != null) {
            ft.attach(fragment);
        } else {
            ft.add(R.id.content_frame, item.fragment, item.name);
        }
        ft.commit();
        // update selected item and title, then close the drawer
        updateDrawerUI(item, position);
    } else if (item.type == DrawerItem.ItemType.ACTION) {
        Log.e(TAG, "ACTION");
        runOnUiThread(item.action);
    }
    mDrawerLayout.closeDrawer(mDrawerList);
}

From source file:com.develop.autorus.MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    Fabric.with(this, new Crashlytics());
    super.onCreate(savedInstanceState);
    SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);

    AnalyticsApplication application = (AnalyticsApplication) getApplication();
    mTracker = application.getDefaultTracker();
    mTracker.setScreenName("Main activity");
    mTracker.send(new HitBuilders.ScreenViewBuilder().build());

    if (pref.getBoolean("notificationIsActive", true)) {
        Intent checkIntent = new Intent(getApplicationContext(), MonitoringWork.class);
        Boolean alrarmIsActive = false;
        if (PendingIntent.getService(getApplicationContext(), 0, checkIntent,
                PendingIntent.FLAG_NO_CREATE) != null)
            alrarmIsActive = true;//from  w  w  w  .  ja  v a2 s . co  m
        am = (AlarmManager) getSystemService(ALARM_SERVICE);

        if (!alrarmIsActive) {
            Intent serviceIntent = new Intent(getApplicationContext(), MonitoringWork.class);
            PendingIntent pIntent = PendingIntent.getService(getApplicationContext(), 0, serviceIntent, 0);

            int period = pref.getInt("numberOfActiveMonitors", 0) * 180000;

            if (period != 0)
                am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime() + period,
                        period, pIntent);
        }
    }

    /*ForEasyDelete
            
    //Danger! Auchtung! ?, !!!
    String base64EncodedPublicKey =
        "<your license key here>";//?   . !!! ? ,    
    // github ?  .         ?!!!
            
    mHelper = new IabHelper(this, base64EncodedPublicKey);
            
    mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
    public void onIabSetupFinished(IabResult result) {
        if (!result.isSuccess()) {
            Log.d(TAG, "In-app Billing setup failed: " +
                    result);
        } else {
            Log.d(TAG, "In-app Billing is set up OK");
        }
    }
    });
    */

    //Service inapp
    Intent intent = new Intent("com.android.vending.billing.InAppBillingService.BIND");
    intent.setPackage("com.android.vending");
    blnBind = bindService(intent, mServiceConn, Context.BIND_AUTO_CREATE);

    String themeName = pref.getString("theme", "1");

    if (themeName.equals("1")) {
        setTheme(R.style.AppTheme);
        if (android.os.Build.VERSION.SDK_INT >= 21) {
            Window statusBar = getWindow();
            statusBar.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            statusBar.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            statusBar.setStatusBarColor(getResources().getColor(R.color.myPrimaryDarkColor));
        }
    } else if (themeName.equals("2")) {
        setTheme(R.style.AppTheme2);
        if (android.os.Build.VERSION.SDK_INT >= 21) {
            Window statusBar = getWindow();
            statusBar.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            statusBar.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            statusBar.setStatusBarColor(getResources().getColor(R.color.myPrimaryDarkColor2));
        }
    }
    ThemeManager.init(this, 2, 0, null);

    if (isFirstLaunch) {
        SQLiteDatabase db = new DbHelper(this).getWritableDatabase();
        Cursor cursorMonitors = db.query("monitors", null, null, null, null, null, null);
        Boolean monitorsExist = cursorMonitors != null && cursorMonitors.getCount() > 0;
        db.close();

        if (getSupportFragmentManager().findFragmentByTag("MAIN") == null) {
            FragmentTransaction fTrans = getSupportFragmentManager().beginTransaction();
            if (monitorsExist)
                mainFragment = SearchAndMonitorsFragment.newInstance(0);
            else
                mainFragment = SearchAndMonitorsFragment.newInstance(1);
            fTrans.add(R.id.container, mainFragment, "MAIN").commit();
        } else {
            mainFragment = (SearchAndMonitorsFragment) getSupportFragmentManager().findFragmentByTag("MAIN");
            if (getSupportFragmentManager().findFragmentByTag("Second") != null) {
                FragmentTransaction fTrans = getSupportFragmentManager().beginTransaction();
                fTrans.remove(getSupportFragmentManager().findFragmentByTag("Second")).commit();
            }
            pref.edit().remove("NumberOfCallingFragment");
        }
    }

    backToast = Toast.makeText(this, "?   ? ", Toast.LENGTH_SHORT);
    setContentView(R.layout.main_activity);
    mToolbar = (Toolbar) findViewById(R.id.toolbar_actionbar);
    mSnackBar = (SnackBar) findViewById(R.id.main_sn);
    setSupportActionBar(mToolbar);

    addMonitorButton = (Button) findViewById(R.id.toolbar_add_monitor_button);

    mNavigationDrawerFragment = (NavigationDrawerFragment) getSupportFragmentManager()
            .findFragmentById(R.id.fragment_drawer);
    mNavigationDrawerFragment.setup(R.id.fragment_drawer, (DrawerLayout) findViewById(R.id.drawer), mToolbar);

    Thread threadAvito = new Thread(new Runnable() {
        @TargetApi(Build.VERSION_CODES.HONEYCOMB)
        public void run() {
            Document doc;
            SharedPreferences sPref;
            try {
                String packageName = getApplicationContext().getPackageName();
                doc = Jsoup.connect("https://play.google.com/store/apps/details?id=" + packageName).userAgent(
                        "Mozilla/5.0 (Windows; U; WindowsNT 5.1; ru-RU; rv1.8.1.6) Gecko/20070725 Firefox/2.0.0.6")
                        .timeout(12000).get();
                //"")

                PackageManager packageManager;
                PackageInfo packageInfo;
                packageManager = getPackageManager();

                packageInfo = packageManager.getPackageInfo(getPackageName(), 0);
                Element mainElems = doc.select(
                        "#body-content > div > div > div.main-content > div.details-wrapper.apps-secondary-color > div > div.details-section-contents > div:nth-child(4) > div.content")
                        .first();

                if (!packageInfo.versionName.equals(mainElems.text())) {
                    sPref = getPreferences(MODE_PRIVATE);
                    SharedPreferences.Editor ed = sPref.edit();
                    ed.putBoolean(SAVED_TEXT_WITH_VERSION, false);
                    ed.commit();
                } else {
                    sPref = getPreferences(MODE_PRIVATE);
                    SharedPreferences.Editor ed = sPref.edit();
                    ed.putBoolean(SAVED_TEXT_WITH_VERSION, true);
                    ed.commit();

                }
                //SharedPreferences sPrefRemind;
                //sPrefRemind = getPreferences(MODE_PRIVATE);
                //sPrefRemind.edit().putBoolean(DO_NOT_REMIND, false).commit();
            } catch (HttpStatusException e) {
                return;
            } catch (IOException e) {
                return;
            } catch (PackageManager.NameNotFoundException e) {

                e.printStackTrace();
            }
        }
    });

    SharedPreferences sPrefVersion;
    sPrefVersion = getPreferences(MODE_PRIVATE);
    Boolean isNewVersion;
    isNewVersion = sPrefVersion.getBoolean(SAVED_TEXT_WITH_VERSION, true);

    threadAvito.start();
    boolean remind = true;
    if (!isNewVersion) {
        Log.d("affa", "isNewVersion= " + isNewVersion);
        SharedPreferences sPref12;
        sPref12 = getPreferences(MODE_PRIVATE);
        String isNewVersion12;

        PackageManager packageManager;
        PackageInfo packageInfo;
        packageManager = getPackageManager();

        try {
            packageInfo = packageManager.getPackageInfo(getPackageName(), 0);
            isNewVersion12 = sPref12.getString("OldVersionName", packageInfo.versionName);

            if (!isNewVersion12.equals(packageInfo.versionName)) {
                SharedPreferences sPref;
                sPref = getPreferences(MODE_PRIVATE);
                SharedPreferences.Editor ed = sPref.edit();
                ed.putBoolean(SAVED_TEXT_WITH_VERSION, false);
                ed.commit();

                SharedPreferences sPrefRemind;
                sPrefRemind = getPreferences(MODE_PRIVATE);
                sPrefRemind.edit().putBoolean(DO_NOT_REMIND, false).commit();
            } else
                remind = false;

            SharedPreferences sPrefRemind;
            sPrefRemind = getPreferences(MODE_PRIVATE);
            sPrefRemind.edit().putString("OldVersionName", packageInfo.versionName).commit();
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }

        SharedPreferences sPrefRemind;
        sPrefRemind = getPreferences(MODE_PRIVATE);
        Boolean dontRemind;
        dontRemind = sPrefRemind.getBoolean(DO_NOT_REMIND, false);
        Log.d("affa", "dontRemind= " + dontRemind.toString());
        Log.d("affa", "remind= " + remind);
        Log.d("affa", "44444444444444444444444= ");
        if ((!dontRemind) && (!remind)) {
            Log.d("affa", "5555555555555555555555555= ");
            SimpleDialog.Builder builder = new SimpleDialog.Builder(R.style.SimpleDialogLight) {
                @Override
                public void onPositiveActionClicked(DialogFragment fragment) {
                    super.onPositiveActionClicked(fragment);
                    String packageName = getApplicationContext().getPackageName();
                    Intent intent = new Intent(Intent.ACTION_VIEW,
                            Uri.parse("https://play.google.com/store/apps/details?id=" + packageName));
                    startActivity(intent);
                }

                @Override
                public void onNegativeActionClicked(DialogFragment fragment) {
                    super.onNegativeActionClicked(fragment);
                }

                @Override
                public void onNeutralActionClicked(DialogFragment fragment) {
                    super.onNegativeActionClicked(fragment);
                    SharedPreferences sPrefRemind;
                    sPrefRemind = getPreferences(MODE_PRIVATE);
                    sPrefRemind.edit().putBoolean(DO_NOT_REMIND, true).commit();
                }
            };

            builder.message(
                    "  ??   ? ? ?")
                    .title(" !").positiveAction("")
                    .negativeAction("").neutralAction("? ");
            DialogFragment fragment = DialogFragment.newInstance(builder);
            fragment.show(getSupportFragmentManager(), null);
        }
    }
}

From source file:com.ai.eve.lenovo.widget.FragmentTabHost.java

private FragmentTransaction doTabChanged(String tabId, FragmentTransaction ft) {
    TabInfo newTab = null;/*from  ww w.  j a v a2  s  .  com*/
    for (int i = 0; i < mTabs.size(); i++) {
        TabInfo tab = mTabs.get(i);
        if (tab.tag.equals(tabId)) {
            newTab = tab;
        }
    }
    if (newTab == null) {
        throw new IllegalStateException("No tab known for tag " + tabId);
    }
    if (mLastTab != newTab) {
        if (ft == null) {
            ft = mFragmentManager.beginTransaction();
        }
        if (mLastTab != null) {
            if (mLastTab.fragment != null) {
                ft.detach(mLastTab.fragment);
            }
        }
        if (newTab != null) {
            if (newTab.fragment == null) {
                newTab.fragment = Fragment.instantiate(mContext, newTab.clss.getName(), newTab.args);
                ft.add(mContainerId, newTab.fragment, newTab.tag);
            } else {
                ft.attach(newTab.fragment);
            }
        }
        mLastTab = newTab;
    }
    return ft;
}