[androidbrasil-dev] Navegação Tabs Android 4 por Activity

Pessoal,

Anteriormente para navegar entre tabs possui-a a classe TabActivity da seguinte forma:

public class TabHostTeste extends TabActivity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
          
            TabHost tabHost = getTabHost();  // The activity TabHost
            tabHost = getTabHost();  // The activity TabHost
            TabHost.TabSpec spec;  // Resusable TabSpec for each tab
            Intent intent;  // Reusable Intent for each tab
           
            // Initialize a TabSpec for each tab and add it to the TabHost
            intent = new Intent().setClass(this, Teste1CadActivity.class);
            spec = tabHost.newTabSpec("Teste1").setIndicator("Aba Teste 1").setContent(intent);
            tabHost.addTab(spec);

            // Initialize a TabSpec for each tab and add it to the TabHost
            intent = new Intent().setClass(this, Teste2CadActivity.class);
            spec = tabHost.newTabSpec("Teste2").setIndicator("Aba Teste 2").setContent(intent);
            tabHost.addTab(spec);
    }
}

Porem ao criar um novo projeto com a versão 4 do android, é informado que a classe TabActivity esta "deprecated", na documentação http://developer.android.com/guide/topics/ui/actionbar.html parece que agora deve ser utilizado a ActionBar e implementar a classe ActionBar.TabListener.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // Notice that setContentView() is not used, because we use the root
    // android.R.id.content as the container for each fragment

    // setup action bar for tabs
    ActionBar actionBar = getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    actionBar.setDisplayShowTitleEnabled(false);

    Tab tab = actionBar.newTab()
            .setText(R.string.artist)
            .setTabListener(new TabListener<ArtistFragment>(
                    this, "artist", ArtistFragment.class));
    actionBar.addTab(tab);

    tab = actionBar.newTab()
        .setText(R.string.album)
        .setTabListener(new TabListener<AlbumFragment>(
                this, "album", AlbumFragment.class));
    actionBar.addTab(tab);
}

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
        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.
    }
}

Sendo assim gostaria de saber se para utilizar estas abas no Android 4 é necessario alterar todas as Activity em Fragment? Não é possivel utilizar minha estrutura anterior mantendo minhas Activity's para navegação?

--
You received this message because you are subscribed to the Google Groups "Android Brasil - Dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email to androidbrasil-dev+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.