android - TabWidget.OnTabSelectionChanged无法解析为一种类型

Question

我正在尝试创建一个自定义TabHost。我想调用setTabSelectionListener()的TabWidget方法。

但是我有以下错误:

TabWidget.OnTabSelectionChanged cannot be resolved to a type

这是我的测试代码:

public class CustomTabHost {
    public CustomTabHost(Activity activity) {       
        TabWidget tab_widget = (TabWidget) activity.findViewById(R.id.tab_widget);
        tab_widget.setTabSelectionListener(new TabWidget.OnTabSelectionChanged() {
            public void onTabSelectionChanged(int tabIndex, boolean clicked) {

            }
        });
    }
}

我正在使用Eclipse和Android 2.2。

提前致谢!

Answer 1

除了使用setTabSelectionListener之外，为什么不使用.OnchangeTabListener，如图所示:How to use TabHost.OnTabChangeListener in android?

    public class ListFragment extends Fragment implements OnTabChangeListener{

View v;
TabHost tabHost;


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {

     v =  inflater.inflate(R.layout.main_menu_libraries, container, false);

      tabHost=(TabHost) v.findViewById(R.id.tabHost);
     tabHost.setup();

     TabSpec spec1=tabHost.newTabSpec("Tab 1");
     spec1.setContent(R.id.tab1);
     spec1.setIndicator("About",getResources().getDrawable(R.drawable.android));

     TabSpec spec2=tabHost.newTabSpec("Tab 2");
     spec2.setContent(R.id.tab2);
     spec2.setIndicator("Blog",getResources().getDrawable(R.drawable.android));

     tabHost.addTab(spec1);
     tabHost.addTab(spec2);

     tabHost.setOnTabChangedListener(this);


     return v;
}

@Override
public void onTabChanged(String arg0) {

    if (tabHost.getCurrentTab()==0)
            {
        //your code here

            }

           if (tabHost.getCurrentTab()==1)
           {
        //your code here
            }

同样在它在这里说//您的代码的部分中...尝试调用一个新类，该类扩展Fragment并用菜单填充特定的片段!