Made MainActivity more concise.

src/com/github/nutomic/controldlna/MainActivity.java

@@ -1,39 +1,43 @@
 package com.github.nutomic.controldlna;
 
-import java.util.Locale;
-
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentPagerAdapter;
 import android.support.v4.app.FragmentTransaction;
 import android.support.v4.view.ViewPager;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
 
 import com.actionbarsherlock.app.ActionBar;
 import com.actionbarsherlock.app.SherlockFragmentActivity;
 
+/**
+ * Main activity, with tabs for media servers and media renderers.
+ * 
+ * @author Felix
+ * 
+ */
 public class MainActivity extends SherlockFragmentActivity implements
 		ActionBar.TabListener {
 
 	/**
-	 * The {@link android.support.v4.view.PagerAdapter} that will provide
+	 * Provides Fragments, holding all of them in memory.
-	 * fragments for each of the sections. We use a
-	 * {@link android.support.v4.app.FragmentPagerAdapter} derivative, which
-	 * will keep every loaded fragment in memory. If this becomes too memory
-	 * intensive, it may be best to switch to a
-	 * {@link android.support.v4.app.FragmentStatePagerAdapter}.
 	 */
-	private SectionsPagerAdapter mSectionsPagerAdapter;
+	private SectionsPagerAdapter mSectionsPagerAdapter = 
+			new SectionsPagerAdapter(getSupportFragmentManager());
 
 	/**
-	 * The {@link ViewPager} that will host the section contents.
+	 * Holds the section contents.
 	 */
 	private ViewPager mViewPager;
 	
+	/**
+	 * Fragment for first tab, holding media renderers.
+	 */
+	private RendererFragment mRendererFragment = new RendererFragment();
+	
+	/**
+	 * Fragment for second tab, holding media servers.
+	 */
 	private ServerFragment mServerFragment = new ServerFragment();
 
 	@Override
@@ -47,36 +51,24 @@ public class MainActivity extends SherlockFragmentActivity implements
 		actionBar.setDisplayShowTitleEnabled(false);
 		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
 
-		// Create the adapter that will return a fragment for each of the three
-		// primary sections of the app.
-		mSectionsPagerAdapter = new SectionsPagerAdapter(
-				getSupportFragmentManager());
-
-		// Set up the ViewPager with the sections adapter.
 		mViewPager = (ViewPager) findViewById(R.id.pager);
 		mViewPager.setAdapter(mSectionsPagerAdapter);
 
-		// When swiping between different sections, select the corresponding
+		// Select correct tab after swiping.
-		// tab. We can also use ActionBar.Tab#select() to do this if we have
+		mViewPager.setOnPageChangeListener(
-		// a reference to the Tab.
+				new ViewPager.SimpleOnPageChangeListener() {
-		mViewPager
-				.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
 					@Override
 					public void onPageSelected(int position) {
 						actionBar.setSelectedNavigationItem(position);
 					}
 				});
-
+		
-		// For each of the sections in the app, add a tab to the action bar.
+		actionBar.addTab(actionBar.newTab()
-		for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
+				.setText(R.string.title_renderer)
-			// Create a tab with text corresponding to the page title defined by
+				.setTabListener(this));
-			// the adapter. Also specify this Activity object, which implements
+		actionBar.addTab(actionBar.newTab()
-			// the TabListener interface, as the callback (listener) for when
+				.setText(R.string.title_server)
-			// this tab is selected.
+				.setTabListener(this));
-			actionBar.addTab(actionBar.newTab()
-					.setText(mSectionsPagerAdapter.getPageTitle(i))
-					.setTabListener(this));
-		}
 	}
 
 	@Override
@@ -96,8 +88,7 @@ public class MainActivity extends SherlockFragmentActivity implements
 	}
 
 	/**
-	 * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
+	 * Returns Fragment corresponding to current tab.
-	 * one of the sections/tabs/pages.
 	 */
 	public class SectionsPagerAdapter extends FragmentPagerAdapter {
 
@@ -108,63 +99,16 @@ public class MainActivity extends SherlockFragmentActivity implements
 		@Override
 		public Fragment getItem(int position) {
 			switch (position) {
-			case 0:
+			case 0:	return mRendererFragment;
-				Fragment fragment = new DummySectionFragment();
+			case 1: return mServerFragment;
-				Bundle args = new Bundle();
+			default: return null;
-				args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
-				fragment.setArguments(args);
-				return fragment;
-			case 1:
-				return mServerFragment;
-			default:
-				return null;
 			}
 		}
 
 		@Override
 		public int getCount() {
-			// Show 2 total pages.
 			return 2;
 		}
-
-		@Override
-		public CharSequence getPageTitle(int position) {
-			Locale l = Locale.getDefault();
-			switch (position) {
-			case 0:
-				return getString(R.string.title_renderer).toUpperCase(l);
-			case 1:
-				return getString(R.string.title_server).toUpperCase(l);
-			}
-			return null;
-		}
-	}
-
-	/**
-	 * A dummy fragment representing a section of the app, but that simply
-	 * displays dummy text.
-	 */
-	public static class DummySectionFragment extends Fragment {
-		/**
-		 * The fragment argument representing the section number for this
-		 * fragment.
-		 */
-		public static final String ARG_SECTION_NUMBER = "section_number";
-
-		public DummySectionFragment() {
-		}
-
-		@Override
-		public View onCreateView(LayoutInflater inflater, ViewGroup container,
-				Bundle savedInstanceState) {
-			View rootView = inflater.inflate(R.layout.fragment_main_dummy,
-					container, false);
-			TextView dummyTextView = (TextView) rootView
-					.findViewById(R.id.section_label);
-			dummyTextView.setText(Integer.toString(getArguments().getInt(
-					ARG_SECTION_NUMBER)));
-			return rootView;
-		}
 	}
 	
 	/**

src/com/github/nutomic/controldlna/RendererFragment.java

@@ -0,0 +1,7 @@
+package com.github.nutomic.controldlna;
+
+import android.support.v4.app.Fragment;
+
+public class RendererFragment extends Fragment {
+
+}