byłoby miło, gdybym mógł przesuwać między kartami, które miałem w moim pasku działań.

Podążyłem za tymi samouczkami:http://developer.android.com/training/implementing-navigation/lateral.html ale to nie zadziała. :( Nie mogę przesuwać gestem między kartami.

Oto moja główna działalność:

public class Hauptmenue_extended extends ActionBarActivity implements
        android.content.DialogInterface.OnClickListener {
@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_hauptmenue_extended);

        try {           
            mPullToRefreshAttacher = PullToRefreshAttacher.get(this);

            actionBar = getSupportActionBar();
            actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);    
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setHomeButtonEnabled(true);

            mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

            mViewPager = (ViewPager) findViewById(R.id.pager);
            mViewPager.setAdapter(mAdapter);


            Tab tabB = actionBar.newTab();
            tabB.setText("Home");
            tabB.setIcon(R.drawable.icon_home);
            tabB.setTabListener(new TabListener<Startmenue_activity>(this,
                    "Start", Startmenue_activity.class, this.mViewPager));
            actionBar.addTab(tabB);

            Tab tabA = actionBar.newTab();
            tabA.setText("");
            tabA.setIcon(R.drawable.icon_nachrichten_sel);
            tabA.setTabListener(new TabListener<Nachrichten_activity>(this,
                    "Nachrichten", Nachrichten_activity.class, this.mViewPager));
            actionBar.addTab(tabA);

            Tab tabC = actionBar.newTab();
            tabC.setText("");
            tabC.setIcon(R.drawable.icon_favoriten);
            tabC.setTabListener(new TabListener<Favoriten_activity>(this,
                    "Favoriten", Favoriten_activity.class, this.mViewPager));
            actionBar.addTab(tabC);



            this.conEinst = new conEinstellungen(getBaseContext());

        } catch (Exception ex) {
            ex.printStackTrace();
            // HelperClassAlertDialog.zeigeInfoDialog(this, "Error...",
        }
    }

public class TabsPagerAdapter extends FragmentPagerAdapter {

        public TabsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        public Fragment getItem(int index) {

            switch (index) {
            case 0:
                // Top Rated fragment activity
                return new Startmenue_activity();
            case 1:
                // Games fragment activity
                return new Nachrichten_activity();
            case 2:
                // Movies fragment activity
                return new Favoriten_activity();
            }

            return null;
        }

        public int getCount() {
            // get item count - equal to number of tabs
            return 3;
        }

    }

A to jest XML:

<android.support.v4.view.ViewPager
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <android.support.v4.view.PagerTabStrip
        android:id="@+id/tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="top" />
</android.support.v4.view.ViewPager>