在Android版本低於3.0的操作欄標簽之間滑動

Question

首先，我獲得了我的支持庫以及所有支持庫，我絕對不想使用Sherlock或類似的支持庫。

這是我的活動代碼：

    public class MyClass ActionBarActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_my_class);

    // Get the message from the intent
    Intent intent = getIntent();
}
static ActionBar actionBar;
@Override
public boolean onCreateOptionsMenu(Menu menu) {

    //       Inflate the menu; this adds items to the action bar if it is present.
    MenuInflater upInflater = getMenuInflater();
    upInflater.inflate(R.menu.action_bar, menu);
    // setup action bar for tabs
    actionBar = getSupportActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

    Tab tab = actionBar.newTab()
            .setIcon(R.drawable.ic_action_home)
            .setTabListener(new TabListener<Fragment1>(
                    this, home, Fragment1.class));
    actionBar.addTab(tab);

    tab = actionBar.newTab()
            .setIcon(R.drawable.ic_action_cart)
            .setTabListener(new TabListener<Fragment2>(
                    this, cart, Fragment2.class));
    actionBar.addTab(tab);

    tab = actionBar.newTab()
            .setIcon(R.drawable.ic_action_users)
            .setTabListener(new TabListener<Fragment3>(
                    this, users, Fragment3.class));
    actionBar.addTab(tab);

    tab = actionBar.newTab()
            .setIcon(R.drawable.ic_action_products)
            .setTabListener(new TabListener<Fragment4>(
                    this, products, Fragment4.class));
    actionBar.addTab(tab);

    tab = actionBar.newTab()
            .setIcon(R.drawable.ic_action_settings)
            .setTabListener(new TabListener<Fragment5>(
                    this, settings, Fragment5.class));
    actionBar.addTab(tab);

    return super.onCreateOptionsMenu(menu);
}

如您所見，我使用片段在選項卡之間移動，這也是我的TabListener：

     public static class TabListener<T extends Fragment> implements ActionBar.TabListener {
    private Fragment mFragment;
    private final Activity mActivity;
    private final String mTag;
    private final Class<T> mClass;

    /** Constructor used each time a new tab is created.
      * @param activity  The host Activity, used to instantiate the fragment
      * @param tag  The identifier tag for the fragment
      * @param clz  The fragment's Class, used to instantiate the fragment
      */
    public TabListener(Activity activity, String tag, Class<T> clz) {
        mActivity = activity;
        mTag = tag;
        mClass = clz;
    }

    /* The following are each of the ActionBar.TabListener callbacks */

    public void onTabSelected(Tab tab, FragmentTransaction ft) {
        // Check if the fragment is already initialized
        actionBar.setTitle(mTag);// <===
        if (mFragment == null) {
            // If not, instantiate and add it to the activity
            mFragment = Fragment.instantiate(mActivity, mClass.getName());
            ft.add(android.R.id.content, mFragment, mTag);
        } else {
            // If it exists, simply attach it in order to show it
            ft.attach(mFragment);
        }
    }

    public void onTabUnselected(Tab tab, FragmentTransaction ft) {
        if (mFragment != null) {
            // Detach the fragment, because another one is being attached
            ft.detach(mFragment);
        }
    }

    public void onTabReselected(Tab tab, FragmentTransaction ft) {
        // User selected the already selected tab. Usually do nothing.
    }
}

這完全可以單獨使用。 我也為每個片段准備了布局和類。 但是我似乎找不到這種樣式的代碼為ViewPager找到合適的源。 我走錯了方向嗎？ 我該怎么辦？

提前致謝。

Answer 1

我通過Eclipse幫助解決了這個問題。 我創建了一個具有滑動功能的項目，該項目適用於api級別高於11的api。我編輯了整個代碼，並在支持程序appcompat 7和4的幫助下使其正常工作。這非常簡單，並且效果很好。