Contenu de l'onglet Utilisation du style d'onglet ActionBarsherlock

Question

se référant à ce code ci-dessous (tiré de https://gist.github.com/1126843 ) Comment définir le contenu des onglets?

public class NativeTabActivity extends Activity {
    private TabHost mTabHost;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mTabHost = (TabHost)findViewById(android.R.id.tabhost);
        mTabHost.setup();

        addTab(new TextView(this), "Tab 1");
        addTab(new TextView(this), "Tab 2");
        addTab(new TextView(this), "Tab 3");
    }

    private void addTab(final View content, final String title) {
        View tabView = LayoutInflater.from(this).inflate(R.layout.abs__action_bar_tab_layout, null);
        TextView tv = (TextView) tabView.findViewById(R.id.abs__tab);
        tv.setText(title);

        TabSpec setContent = mTabHost.newTabSpec(title).setIndicator(tabView).setContent(new TabContentFactory() {
            public View createTabContent(String tag) {
                return content;
            }
        });
        mTabHost.addTab(setContent);
    }
}

À partir du code, il semble que je dois mettre le contenu sous la vue CreateTabContent (string tag) mais comment puis-je le faire?

Answer 1

J'utilise des fragments pour mon implémentation Sherlock.

public class ActionBarTabs extends FragmentActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    ActionBar bar = getSupportActionBar();
    bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);

    bar.addTab(bar.newTab()
            .setText("Home")
            .setTabListener(new TabListener<DashBoardFragment>(
                    this, "home", DashBoardFragment.class, null)));

    bar.addTab(bar.newTab()
            .setText("Inventory")
            .setTabListener(new TabListener<InventoryFragment>(
                    this, "inventory", InventoryFragment.class, null)));

if (savedInstanceState != null) {

        bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
    }


}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case android.R.id.home:
            // app icon in action bar clicked; go Location selection
            Intent intent = new Intent(ActionBarTabs.this, LocationSelectorActivity.class);
            ActionBarTabs.this.startActivityForResult(intent,0);
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putInt("tab", getSupportActionBar().getSelectedNavigationIndex());
}

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




    public TabListener(FragmentActivity activity, String tag, Class<T> clz, Bundle args) {
        mActivity = activity;
        mTag = tag;
        mClass = clz;
        mArgs = args;
        FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction();


        // Check to see if we already have a fragment for this tab, probably
        // from a previously saved state.  If so, deactivate it, because our
        // initial state is that a tab isn't shown.
        mFragment = mActivity.getSupportFragmentManager().findFragmentByTag(mTag);
        if (mFragment != null && !mFragment.isDetached()) {
            ft.detach(mFragment);
        }
    }

    @Override
    public void onTabSelected(Tab tab) {
        FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction();

        if (mFragment == null) {
            mFragment = Fragment.instantiate(mActivity, mClass.getName(), mArgs);
            ft.add(android.R.id.content, mFragment, mTag);
            ft.commit();
        } else {
            ft.attach(mFragment);
            ft.commit();
        }
    }

    @Override
    public void onTabUnselected(Tab tab) {
        FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction();

        if (mFragment != null) {
            ft.detach(mFragment);
            ft.commitAllowingStateLoss();
        }           
    }

    @Override
    public void onTabReselected(Tab tab) {

    }

}

}

Le changement de clé pour charger différents fragments dans les onglets consiste à changer simplement le "votre_fragment_name" au nom de votre classe de fragments dans ces lignes:

bar.addTab(bar.newTab()
            .setText("Home")
            .setTabListener(new TabListener<YOUR_FRAGMENT_NAME>(
                    this, "home", YOUR_FRAGMENT_NAME.class, null)));

J'espère que cela t'aides!

Answer 2

J'ai trouvé la réponse de Rymnel très utile, mais j'ai dû apporter des modifications pour que cela fonctionne correctement avec ActionBarsherlock 4.0. J'avais des problèmes avec le remplacement des méthodes ONTAB qui passent dans des fragments de transactions, donc j'ai juste utilisé les méthodes par défaut et réaffecté le VAR "FT" à l'intérieur de la méthode. Je suis sûr qu'il existe une façon plus propre de le faire, mais voici mon code de travail:

public class TabTestActivity extends SherlockFragmentActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    ActionBar bar = getSupportActionBar();
    bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);
    bar.setDisplayHomeAsUpEnabled(true);
    bar.setDisplayShowTitleEnabled(true);
    bar.setTitle("Activity Title");
    bar.addTab(bar
            .newTab()
            .setText("Tab 1")
            .setTabListener(
                    new TabListener<TabTest1>(this, "tab1",
                            TabTest1.class, null)));

    bar.addTab(bar
            .newTab()
            .setText("Tab 2")
            .setTabListener(
                    new TabListener<TabTest2>(this, "tab2",
                            TabTest2.class, null)));
    bar.addTab(bar
            .newTab()
            .setText("Tab 3")
            .setTabListener(new TabListener<TabTest3>(this, "tab3", TabTest3.class, null)));

    if (savedInstanceState != null) {
        bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
    }

}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
        // app icon in action bar clicked; go home
                    Intent intent = new Intent(this, DashboardActivity.class);
                    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                    startActivity(intent);
                    return true;
    default:
        return super.onOptionsItemSelected(item);
    }
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putInt("tab", getSupportActionBar()
            .getSelectedNavigationIndex());
}

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

    public TabListener(FragmentActivity activity, String tag, Class<T> clz,
            Bundle args) {
        mActivity = activity;
        mTag = tag;
        mClass = clz;
        mArgs = args;
        FragmentTransaction ft = mActivity.getSupportFragmentManager()
                .beginTransaction();

        // Check to see if we already have a fragment for this tab, probably
        // from a previously saved state. If so, deactivate it, because our
        // initial state is that a tab isn't shown.
        mFragment = mActivity.getSupportFragmentManager()
                .findFragmentByTag(mTag);
        if (mFragment != null && !mFragment.isDetached()) {
            ft.detach(mFragment);
        }
    }


    @Override
    public void onTabSelected(Tab tab, FragmentTransaction ft) {
        ft = mActivity.getSupportFragmentManager()
                .beginTransaction();

        if (mFragment == null) {
            mFragment = Fragment.instantiate(mActivity, mClass.getName(),
                    mArgs);
            ft.add(android.R.id.content, mFragment, mTag);
            ft.commit();
        } else {
            ft.attach(mFragment);
            ft.commit();
        }

    }

    @Override
    public void onTabUnselected(Tab tab, FragmentTransaction ft) {
        ft = mActivity.getSupportFragmentManager()
                .beginTransaction();

        if (mFragment != null) {
            ft.detach(mFragment);
            ft.commitAllowingStateLoss();
        }

    }

    @Override
    public void onTabReselected(Tab tab, FragmentTransaction ft) {
    }
}