Question

我想在我的应用中的标签之间滑动。我已经找到了很多教程来完成这项工作，但我无法使用我的代码，因为我使用了不同的代码。 MyActivity.class：

public class MyActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

final ActionBar actionBar = getActionBar();
          actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

             ActionBar.Tab tabA = actionBar.newTab();
                tabA.setIcon(R.drawable.icon_settings);
              actionBar.setDisplayShowHomeEnabled(false);
             actionBar.setDisplayShowTitleEnabled(false);

            tabA.setText("");
         tabA.setTabListener(new com.example.MainActivity.TabListener<Tab1>(this, "Tab1", Tab1.class));
         actionBar.addTab(tabA);





          Tab tabB = actionBar.newTab();
        tabB.setText("Tab2");
         tabB.setTabListener(new com.example.MainActivity.TabListener<Tab2>(this, "Tab2", Tab2.class));
          actionBar.addTab(tabB);

            Tab tabC = actionBar.newTab();           
            tabC.setText("Tab3");

         tabC.setTabListener(new com.example.MainActivity.TabListener<Tab3>(this, "Tab3", Tab3.class));
         actionBar.addTab(tabC);

        if (savedInstanceState != null) {
              int savedIndex = savedInstanceState.getInt("SAVED_INDEX");
            getActionBar().setSelectedNavigationItem(savedIndex);
       }
}

main.xml中

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
               >
    <TabHost
            android:id="@+id/tabHost"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            >
        <LinearLayout
                android:layout_width="fill_parent"
                android:layout_height="fill_parent"
                android:orientation="vertical"
                android:paddingTop="5dip">
            <TabWidget
                    android:id="@android:id/tabs"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content">
            </TabWidget>
            <FrameLayout
                    android:id="@android:id/tabcontent"
                    android:layout_width="fill_parent"
                    android:layout_height="fill_parent">
<LinearLayout
                    android:id="@+id/einstellungen"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content" android:orientation="vertical" android:background="#ffffff">
</LinearLayout>
            <LinearLayout
                android:id="@+id/tab1"
                android:orientation="vertical"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent">
           </LinearLayout>

            <LinearLayout
                    android:id="@+id/tab2"
                    android:orientation="vertical"
                    android:layout_width="fill_parent"
                    android:layout_height="fill_parent">
            </LinearLayout>
            <LinearLayout
                    android:id="@+id/tab3"
                    android:orientation="vertical"
                    android:layout_width="fill_parent"
                    android:layout_height="fill_parent">
            </LinearLayout>
        </FrameLayout>
    </LinearLayout>
</TabHost>

Tab1.class

public class Tab1 extends Fragment {

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View myFragmentView = inflater.inflate(R.layout.fragment_a, container, false);
    return myFragmentView;
}

}

TabListener.class

public class TabListener <T extends Fragment> implements ActionBar.TabListener{

    private final Activity myActivity;
    private final String myTag;
    private final Class myClass;

    public TabListener(Activity activity, String tag, Class<T> cls) {
        myActivity = activity;
        myTag = tag;
        myClass = cls;
    }
    @Override
    public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {

        Fragment myFragment = myActivity.getFragmentManager().findFragmentByTag(myTag);

        if (myFragment == null) {
            myFragment = Fragment.instantiate(myActivity, myClass.getName());
            ft.add(android.R.id.content, myFragment, myTag);
        } else {
            ft.attach(myFragment);
        }

    }

    @Override
    public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {

        Fragment myFragment = myActivity.getFragmentManager().findFragmentByTag(myTag);

        if (myFragment != null) {
            ft.detach(myFragment);
        }

    }

    @Override
    public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
        // TODO Auto-generated method stub

    }

}

Answer 1

您可以使用ActionBar Tabs + Swipe Views，Eclipse或Android Sudio的默认IntelliJ IDEA轻松完成此操作。无论如何，您可以在Android ActionBar Tabs - Swipe或Creating Swipe Views with Tabs查看我的答案，您可以在Android Developers找到一个非常好的教程。

希望我帮助你

ActionBar：在标签之间滑动

1 个答案: