Added Tabnavigation to main Activity

src/de/podfetcher/activity/PodfetcherActivity.java

@@ -15,8 +15,12 @@ import android.widget.ListView;
 import android.widget.ArrayAdapter;
 import android.os.Bundle;
 import android.content.Intent;
+import android.app.Activity;
 import com.actionbarsherlock.app.SherlockFragmentActivity;
 import com.actionbarsherlock.app.SherlockListFragment;
+import com.actionbarsherlock.app.ActionBar;
+import com.actionbarsherlock.app.ActionBar.Tab;
+import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentTransaction;
 
@@ -31,14 +35,57 @@ public class PodfetcherActivity extends SherlockFragmentActivity {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 		setContentView(R.layout.main);
+		
+		// Set up tabs
+		ActionBar actionBar = getSupportActionBar();
+		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
+		actionBar.setDisplayShowTitleEnabled(false);
 
-		FragmentManager fragmentManager = getSupportFragmentManager();
-		FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
-		feedlist = new FeedlistFragment();
-		fragmentTransaction.replace(R.id.main_fragment, feedlist);
-		fragmentTransaction.setTransition(
-				FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
-		fragmentTransaction.commit();
-
+		Tab tab = actionBar.newTab()
+				.setText(getText(R.string.feeds_label).toString())
+				.setTabListener(new TabListener<FeedlistFragment>(
+							this, getText(R.string.feeds_label).toString(), FeedlistFragment.class));
+		
+		actionBar.addTab(tab);
+		tab = actionBar.newTab()
+				.setText("Playlist")
+				.setTabListener(new TabListener<FeedlistFragment>(
+							this, "Playlist", FeedlistFragment.class));
+		actionBar.addTab(tab);
     }
+
+
+	/** TabListener for navigating between the main lists. */
+	private class TabListener<T extends Fragment> implements ActionBar.TabListener {
+
+		private final Activity activity;
+		private final String tag;
+		private final Class<T> fClass;
+		private Fragment fragment;
+		
+		public TabListener(Activity activity, String tag, Class<T> fClass) {
+			this.activity = activity;
+			this.tag = tag;
+			this.fClass = fClass;
+		}
+
+		public void onTabSelected(Tab tab, FragmentTransaction ft) {
+			if (fragment == null) {
+				fragment = Fragment.instantiate(activity, fClass.getName());
+				ft.replace(R.id.main_fragment, fragment);
+			} else {
+				ft.attach(fragment);
+			}
+		}
+
+		public void onTabUnselected(Tab tab, FragmentTransaction ft) {
+			if (fragment != null) {
+				ft.detach(fragment);
+			}
+		}
+
+		public void onTabReselected(Tab tab, FragmentTransaction ft) {
+			// Do nothing	
+		}
+	}
 }