如何修改在TabActivity里一个Tab的标题

Question

我在 TabActivity 底部设置了 tabs，由下面的几个不同的 activity 组成

public class HomeScreen extends TabActivity {
private TabHost mTabHost;
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);

    try{
    setContentView(R.layout.hometabs);


    Resources res = getResources(); // Resource object to get Drawables
    mTabHost = getTabHost();  // The activity TabHost
    TabHost.TabSpec spec;  // Reusable TabSpec for each tab
    Intent intent;  // Reusable Intent for each tab
    String strName;
    // Create an Intent to launch an Activity for the tab (to be reused)
    strName=Central.Res.getString(R.string.tab_Books);
    intent = new Intent().setClass(this, BookList.class);
    spec = mTabHost.newTabSpec(strName).setIndicator("",
                      res.getDrawable(R.drawable.ic_menu_database))
                  .setContent(intent);
    mTabHost.addTab(spec);


    // Create an Intent to launch an Activity for the tab (to be reused)
    strName=Central.Res.getString(R.string.tab_Questions);
    intent = new Intent().setClass(this, QuestionsList.class);
    intent.putExtra("NoteType",  UserDataSQLHelper.NOTE_TYPE_QUEST );
    spec = mTabHost.newTabSpec(strName).setIndicator("",
                      res.getDrawable(R.drawable.ic_menu_dialog))
                  .setContent(intent);
    mTabHost.addTab(spec);

问题是对于每一个tab都有同样的窗口标题。窗口标题显示的是应用程序的名字，我想要把窗口标题名字换成tab的名字。我试着通过调用相应的onCreate()方法里面的setTitle("MyTitle");这个方法来实现，并且重写TabActivity onChildTitleChanged:

public void onChildTitleChanged(Activity childActivity, CharSequence title)
        {
             View tabView = mTabHost.getCurrentTabView();
             int idTitle = android.R.id.title;
             TextView tvTitle = (TextView) tabView.findViewById(idTitle);
             tvTitle.setText(title);
        }

但是结果不是这样的，它在 Tab 图标下面给 Tab 设置了 text。
请大家帮忙指点。

Answer 1

试一下这段代码：

tabHost.setOnTabChangedListener(new OnTabChangeListener() {         
            @Override
            public void onTabChanged(String tabId) {                
                Log.i("Tab id", ""+tabId);
                setTitle(tabId);
            }
        });