从选项卡更改为另一个

Question

我想从一个标签到另一个标签..我该怎么做？ 我现在只在活动之间做些什么。 我需要从一个选项卡转到另一个。

我有这些标签的代码

public class Main extends TabActivity

{

@Override
protected void onCreate(Bundle savedInstanceState)
{
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);



     Resources res = getResources(); // Resource object to get Drawables
        TabHost tabHost = getTabHost();  // The activity TabHost
        TabHost.TabSpec spec;  // Resusable TabSpec for each tab
        Intent intent;  // Reusable Intent for each tab


        // Create an Intent to launch an Activity for the tab (to be reused)
        //intent = new Intent().setClass(this, Contas.class);
        Intent a = new Intent(Main.this, Contas.class);
        Intent b = new Intent(Main.this, Registros.class);
        Intent c = new Intent(Main.this, Relatorios.class);
        // Initialize a TabSpec for each tab and add it to the TabHost
        spec = tabHost.newTabSpec("Contas").setIndicator("Contas",
                          res.getDrawable(R.drawable.ic_tab_accounts))
                      .setContent(a.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
        tabHost.addTab(spec);


        // Do the same for the other tabs
        //intent = new Intent().setClass(this, Registros.class);
        spec = tabHost.newTabSpec("Registros").setIndicator("Registros",
                          res.getDrawable(R.drawable.ic_tab_registry))
                      .setContent(b.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
        tabHost.addTab(spec);

        //intent = new Intent().setClass(this, Relatorios.class);
        spec = tabHost.newTabSpec("Relatorios").setIndicator("Relatorios",
                          res.getDrawable(R.drawable.ic_tab_reports))
                      .setContent(c.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
        tabHost.addTab(spec);

        tabHost.setCurrentTab(0);


}

}

Answer 1

只需调用所需的选项卡，然后再调用意图即可。 tabHost.setCurrentTab(index)

Answer 2

只需调用所需的选项卡，然后再调用意图即可。 采用

intent.putExtra("tabIndex", index);

并致电活动。 现在在调用Activity的onCreate()或onResume()使用

int index = getIntent().getExtraInt("tabIndex", -1);
if(index != -1)
    tabHost.setCurrentTab(index);