revert ics fragment stuff

.classpath

@@ -5,7 +5,7 @@
 	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
 	<classpathentry kind="lib" path="C:/Users/fox/workspace/org.fox.ttrss/libs/gson-1.7.1.jar"/>
 	<classpathentry kind="lib" path="C:/Users/fox/workspace/org.fox.ttrss/libs/jsoup-1.6.1.jar"/>
-	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
 	<classpathentry kind="lib" path="libs/android-support-v4.jar"/>
+	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
 	<classpathentry kind="output" path="bin/classes"/>
 </classpath>

AndroidManifest.xml

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.fox.ttrss"
-    android:versionCode="73"
+    android:versionCode="72"
-    android:versionName="0.6.0" >
+    android:versionName="0.5.7" >
 
-    <uses-sdk android:minSdkVersion="14" />
+    <uses-sdk android:minSdkVersion="8" />
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

src/org/fox/ttrss/ArticleFragment.java

@@ -1,5 +1,6 @@
 package org.fox.ttrss;
 
+import java.io.File;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.text.SimpleDateFormat;
@@ -15,27 +16,32 @@ import org.jsoup.select.Elements;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
-import android.app.Fragment;
+import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.net.Uri;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.v4.app.Fragment;
 import android.text.Html;
 import android.text.method.LinkMovementMethod;
+import android.util.Log;
 import android.util.TypedValue;
 import android.view.ContextMenu;
-import android.view.ContextMenu.ContextMenuInfo;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
+import android.view.ContextMenu.ContextMenuInfo;
 import android.webkit.WebSettings;
 import android.webkit.WebView;
+import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.Spinner;
 import android.widget.TextView;
+import android.widget.Toast;
+import android.widget.AdapterView.AdapterContextMenuInfo;
 
 public class ArticleFragment extends Fragment {
 	@SuppressWarnings("unused")

src/org/fox/ttrss/ArticlePager.java

@@ -1,12 +1,12 @@
 package org.fox.ttrss;
 
 import org.fox.ttrss.types.Article;
-import org.fox.ttrss.util.FragmentStatePagerAdapter;
 
 import android.app.Activity;
-import android.app.Fragment;
-import android.app.FragmentManager;
 import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentStatePagerAdapter;
 import android.support.v4.view.ViewPager;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -57,7 +57,7 @@ public class ArticlePager extends Fragment {
 	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {    	
 		View view = inflater.inflate(R.layout.article_pager, container, false);
 	
-		m_adapter = new PagerAdapter(getActivity().getFragmentManager());
+		m_adapter = new PagerAdapter(getActivity().getSupportFragmentManager());
 		
 		ViewPager pager = (ViewPager) view.findViewById(R.id.article_pager);
 		
@@ -96,7 +96,7 @@ public class ArticlePager extends Fragment {
 	public void onAttach(Activity activity) {
 		super.onAttach(activity);		
 		
-		m_hf = (HeadlinesFragment) getActivity().getFragmentManager().findFragmentById(R.id.headlines_fragment);
+		m_hf = (HeadlinesFragment) getActivity().getSupportFragmentManager().findFragmentById(R.id.headlines_fragment);
 		m_onlineServices = (OnlineServices)activity;
 	}
 

src/org/fox/ttrss/DummyFragment.java

@@ -1,7 +1,7 @@
 package org.fox.ttrss;
 
-import android.app.Fragment;
 import android.os.Bundle;
+import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;

src/org/fox/ttrss/FeedCategoriesFragment.java

@@ -10,12 +10,12 @@ import java.util.List;
 import org.fox.ttrss.types.FeedCategory;
 
 import android.app.Activity;
-import android.app.Fragment;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.v4.app.Fragment;
 import android.view.ContextMenu;
 import android.view.ContextMenu.ContextMenuInfo;
 import android.view.LayoutInflater;

src/org/fox/ttrss/FeedsFragment.java

@@ -7,6 +7,7 @@ import java.io.InputStream;
 import java.lang.reflect.Type;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.net.URLConnection;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
@@ -20,8 +21,14 @@ import org.apache.http.auth.UsernamePasswordCredentials;
 import org.apache.http.client.CredentialsProvider;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.client.protocol.ClientContext;
+import org.apache.http.conn.scheme.PlainSocketFactory;
 import org.apache.http.conn.scheme.Scheme;
+import org.apache.http.conn.scheme.SchemeRegistry;
 import org.apache.http.impl.client.BasicCredentialsProvider;
+import org.apache.http.impl.client.DefaultHttpClient;
+import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
+import org.apache.http.params.BasicHttpParams;
+import org.apache.http.params.HttpParams;
 import org.apache.http.protocol.BasicHttpContext;
 import org.apache.http.protocol.HttpContext;
 import org.fox.ttrss.types.Feed;
@@ -29,7 +36,6 @@ import org.fox.ttrss.types.FeedCategory;
 import org.fox.ttrss.util.EasySSLSocketFactory;
 
 import android.app.Activity;
-import android.app.Fragment;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
@@ -40,6 +46,7 @@ import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.Environment;
 import android.preference.PreferenceManager;
+import android.support.v4.app.Fragment;
 import android.util.Log;
 import android.view.ContextMenu;
 import android.view.ContextMenu.ContextMenuInfo;

src/org/fox/ttrss/HeadlinesFragment.java

@@ -1,5 +1,6 @@
 package org.fox.ttrss;
 
+import java.io.File;
 import java.lang.reflect.Type;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -17,7 +18,6 @@ import org.fox.ttrss.types.Feed;
 import org.jsoup.Jsoup;
 
 import android.app.Activity;
-import android.app.Fragment;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ -26,6 +26,7 @@ import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.v4.app.Fragment;
 import android.text.Html;
 import android.text.Html.ImageGetter;
 import android.text.method.LinkMovementMethod;

src/org/fox/ttrss/MainActivity.java

@@ -19,11 +19,8 @@ import org.fox.ttrss.util.AppRater;
 import org.fox.ttrss.util.DatabaseHelper;
 
 import android.animation.LayoutTransition;
-import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
-import android.app.Fragment;
-import android.app.FragmentTransaction;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.DialogInterface;
@@ -39,6 +36,9 @@ import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentTransaction;
 import android.util.Log;
 import android.view.ActionMode;
 import android.view.KeyEvent;
@@ -60,7 +60,7 @@ import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
 import com.google.gson.reflect.TypeToken;
 
-public class MainActivity extends Activity implements OnlineServices {
+public class MainActivity extends FragmentActivity implements OnlineServices {
 	private final String TAG = this.getClass().getSimpleName();
 
 	private SharedPreferences m_prefs;
@@ -75,6 +75,7 @@ public class MainActivity extends Activity implements OnlineServices {
 	private boolean m_smallScreenMode;
 	private boolean m_unreadOnly = true;
 	private boolean m_unreadArticlesOnly = true;
+	private boolean m_compatMode = false;
 	private boolean m_enableCats = false;
 	private int m_apiLevel = 0;
 	private boolean m_isLoggingIn = false;
@@ -144,7 +145,7 @@ public class MainActivity extends Activity implements OnlineServices {
 	};
 
 	public void updateHeadlines() {
-		HeadlinesFragment frag = (HeadlinesFragment) getFragmentManager()
+		HeadlinesFragment frag = (HeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
 		if (frag != null) {
 			frag.notifyUpdated();
@@ -362,7 +363,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 	private synchronized void refreshFeeds() {
 		if (m_sessionId != null) {
-			FeedsFragment frag = (FeedsFragment) getFragmentManager()
+			FeedsFragment frag = (FeedsFragment) getSupportFragmentManager()
 					.findFragmentById(R.id.feeds_fragment);
 
 			Log.d(TAG, "Refreshing feeds...");
@@ -375,7 +376,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 	private synchronized void refreshHeadlines() {
 		if (m_sessionId != null) {
-			HeadlinesFragment frag = (HeadlinesFragment) getFragmentManager()
+			HeadlinesFragment frag = (HeadlinesFragment) getSupportFragmentManager()
 					.findFragmentById(R.id.headlines_fragment);
 
 			Log.d(TAG, "Refreshing headlines...");
@@ -388,7 +389,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 	private synchronized void refreshCategories() {
 		if (m_sessionId != null) {
-			FeedCategoriesFragment frag = (FeedCategoriesFragment) getFragmentManager()
+			FeedCategoriesFragment frag = (FeedCategoriesFragment) getSupportFragmentManager()
 					.findFragmentById(R.id.cats_fragment);
 
 			Log.d(TAG, "Refreshing categories...");
@@ -418,7 +419,7 @@ public class MainActivity extends Activity implements OnlineServices {
 	 * = unread;
 	 * 
 	 * HeadlinesFragment frag =
-	 * (HeadlinesFragment)getFragmentManager().findFragmentById
+	 * (HeadlinesFragment)getSupportFragmentManager().findFragmentById
 	 * (R.id.headlines_fragment);
 	 * 
 	 * if (frag != null) frag.refresh(false); }
@@ -446,6 +447,8 @@ public class MainActivity extends Activity implements OnlineServices {
 		m_prefs = PreferenceManager
 				.getDefaultSharedPreferences(getApplicationContext());
 
+		m_compatMode = android.os.Build.VERSION.SDK_INT <= 10;
+
 		if (m_prefs.getString("theme", "THEME_DARK").equals("THEME_DARK")) {
 			setTheme(R.style.DarkTheme);
 		} else {
@@ -472,7 +475,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 		m_enableCats = m_prefs.getBoolean("enable_cats", false);
 
-		m_smallScreenMode = (getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) != 
+		m_smallScreenMode = m_compatMode || (getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) != 
 				Configuration.SCREENLAYOUT_SIZE_XLARGE;
 		
 		setContentView(R.layout.main);
@@ -490,11 +493,18 @@ public class MainActivity extends Activity implements OnlineServices {
 
 		Log.d(TAG, "m_isOffline=" + m_isOffline);
 		Log.d(TAG, "m_smallScreenMode=" + m_smallScreenMode);
+		Log.d(TAG, "m_compatMode=" + m_compatMode);
 
+		if (!m_compatMode) {
+			if (android.os.Build.VERSION.SDK_INT < 14 || android.os.Build.VERSION.SDK_INT == 15) {
+				if (!m_smallScreenMode) {
 					LayoutTransition transitioner = new LayoutTransition();
 					((ViewGroup) findViewById(R.id.main)).setLayoutTransition(transitioner);
+				}
+			}
 			
 			m_headlinesActionModeCallback = new HeadlinesActionModeCallback();
+		}
 
 		if (m_isOffline) {
 			Intent offline = new Intent(MainActivity.this,
@@ -756,7 +766,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 		m_activeCategory = null;
 		
-		FeedCategoriesFragment cf = (FeedCategoriesFragment) getFragmentManager()
+		FeedCategoriesFragment cf = (FeedCategoriesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.cats_fragment);
 
 		if (cf != null) {
@@ -769,7 +779,7 @@ public class MainActivity extends Activity implements OnlineServices {
 	}
 	
 	private void deselectAllArticles() {
-		HeadlinesFragment hf = (HeadlinesFragment) getFragmentManager()
+		HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager()
 									.findFragmentById(R.id.headlines_fragment);
 
 		if (hf != null) {
@@ -799,11 +809,11 @@ public class MainActivity extends Activity implements OnlineServices {
 					findViewById(R.id.cats_fragment)
 						.setVisibility(View.VISIBLE);
 					
-					FragmentTransaction ft = getFragmentManager().beginTransaction();
+					FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 					ft.replace(R.id.headlines_fragment, new HeadlinesFragment());
 					ft.commit();
 
-					FeedCategoriesFragment cf = (FeedCategoriesFragment) getFragmentManager()
+					FeedCategoriesFragment cf = (FeedCategoriesFragment) getSupportFragmentManager()
 							.findFragmentById(R.id.cats_fragment);
 
 					if (cf != null) {
@@ -818,14 +828,14 @@ public class MainActivity extends Activity implements OnlineServices {
 					findViewById(R.id.feeds_fragment).setVisibility(
 							View.VISIBLE);
 
-					FragmentTransaction ft = getFragmentManager().beginTransaction();
+					FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 					ft.replace(R.id.headlines_fragment, new HeadlinesFragment());
 					ft.commit();
 
 					refreshFeeds();
 				}
 
-				FeedsFragment ff = (FeedsFragment) getFragmentManager()
+				FeedsFragment ff = (FeedsFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.feeds_fragment);
 
 				if (ff != null) {
@@ -857,7 +867,7 @@ public class MainActivity extends Activity implements OnlineServices {
 				findViewById(R.id.headlines_fragment).setVisibility(
 						View.INVISIBLE);
 				
-				FeedsFragment ff = (FeedsFragment) getFragmentManager()
+				FeedsFragment ff = (FeedsFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.feeds_fragment);
 
 				if (ff != null) {
@@ -866,7 +876,7 @@ public class MainActivity extends Activity implements OnlineServices {
 				
 				m_activeFeed = null;
 				
-				FragmentTransaction ft = getFragmentManager().beginTransaction();
+				FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 				ft.replace(R.id.headlines_fragment, new HeadlinesFragment());
 				ft.commit();
 				
@@ -882,7 +892,7 @@ public class MainActivity extends Activity implements OnlineServices {
 	@SuppressWarnings("unchecked")
 	@Override
 	public boolean onOptionsItemSelected(MenuItem item) {
-		final HeadlinesFragment hf = (HeadlinesFragment) getFragmentManager()
+		final HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
 
 		switch (item.getItemId()) {
@@ -927,6 +937,44 @@ public class MainActivity extends Activity implements OnlineServices {
 			return true;
 		case android.R.id.home:
 			goBack(false);
+			return true;
+		case R.id.search:
+			if (hf != null && m_compatMode) {
+				Dialog dialog = new Dialog(this);
+
+				final EditText edit = new EditText(this);
+
+				AlertDialog.Builder builder = new AlertDialog.Builder(this)
+						.setTitle(R.string.search)
+						.setPositiveButton(getString(R.string.search),
+								new OnClickListener() {
+
+									@Override
+									public void onClick(DialogInterface dialog,
+											int which) {
+										
+										String query = edit.getText().toString().trim();
+										
+										hf.setSearchQuery(query);
+
+									}
+								})
+						.setNegativeButton(getString(R.string.cancel),
+								new OnClickListener() {
+
+									@Override
+									public void onClick(DialogInterface dialog,
+											int which) {
+										
+										//
+
+									}
+								}).setView(edit);
+				
+				dialog = builder.create();
+				dialog.show();
+			}
+			
 			return true;
 		case R.id.preferences:
 			Intent intent = new Intent(MainActivity.this,
@@ -1240,7 +1288,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 		m_selectedArticle = null;
 		
-		FragmentTransaction ft = getFragmentManager().beginTransaction();
+		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 		ft.replace(R.id.article_fragment, new DummyFragment());
 		ft.commit();
 
@@ -1267,7 +1315,7 @@ public class MainActivity extends Activity implements OnlineServices {
 				m_menu.setGroupVisible(R.id.menu_group_logged_in, true);
 				m_menu.setGroupVisible(R.id.menu_group_logged_out, false);
 				
-				HeadlinesFragment hf = (HeadlinesFragment) getFragmentManager()
+				HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.headlines_fragment);
 
 				int numSelected = 0;
@@ -1276,8 +1324,12 @@ public class MainActivity extends Activity implements OnlineServices {
 					numSelected = hf.getSelectedArticles().size();
 
 				if (numSelected != 0) {
+					if (m_compatMode) {
+						m_menu.setGroupVisible(R.id.menu_group_headlines_selection, true);
+					} else {
 						if (m_headlinesActionMode == null)
 							m_headlinesActionMode = startActionMode(m_headlinesActionModeCallback);
+					}
 					
 				} else if (m_selectedArticle != null) {
 					m_menu.setGroupVisible(R.id.menu_group_article, true);
@@ -1288,13 +1340,14 @@ public class MainActivity extends Activity implements OnlineServices {
 					
 					search.setEnabled(m_apiLevel >= 2);
 					
+					if (!m_compatMode) {
 						SearchView searchView = (SearchView) search.getActionView();
 						searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
 							private String query = "";
 							
 							@Override
 							public boolean onQueryTextSubmit(String query) {
-							HeadlinesFragment frag = (HeadlinesFragment) getFragmentManager()
+								HeadlinesFragment frag = (HeadlinesFragment) getSupportFragmentManager()
 										.findFragmentById(R.id.headlines_fragment);
 								
 								if (frag != null) {
@@ -1308,7 +1361,7 @@ public class MainActivity extends Activity implements OnlineServices {
 							@Override
 							public boolean onQueryTextChange(String newText) {
 								if (newText.equals("") && !newText.equals(this.query)) {
-								HeadlinesFragment frag = (HeadlinesFragment) getFragmentManager()
+									HeadlinesFragment frag = (HeadlinesFragment) getSupportFragmentManager()
 											.findFragmentById(R.id.headlines_fragment);
 									
 									if (frag != null) {
@@ -1320,6 +1373,7 @@ public class MainActivity extends Activity implements OnlineServices {
 								return false;
 							}
 						});
+					}
 					
 				} else {
 					m_menu.setGroupVisible(R.id.menu_group_feeds, true);
@@ -1329,6 +1383,8 @@ public class MainActivity extends Activity implements OnlineServices {
 					m_headlinesActionMode.finish();
 				}
 
+				if (!m_compatMode) {
+					
 					if (m_activeFeed != null) {
 						getActionBar().setTitle(m_activeFeed.title);
 					} else if (m_activeCategory != null) {
@@ -1352,6 +1408,8 @@ public class MainActivity extends Activity implements OnlineServices {
 						}
 					}
 					
+				}
+				
 				m_menu.findItem(R.id.set_labels).setEnabled(m_apiLevel >= 1);
 
 				m_menu.findItem(R.id.donate).setVisible(BillingHelper.isBillingSupported());
@@ -1463,7 +1521,7 @@ public class MainActivity extends Activity implements OnlineServices {
 								if (hasPendingOfflineData())
 									syncOfflineData();
 
-								FragmentTransaction ft = getFragmentManager().beginTransaction();
+								FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 
 								if (m_enableCats) {
 									FeedCategoriesFragment frag = new FeedCategoriesFragment();
@@ -1569,7 +1627,7 @@ public class MainActivity extends Activity implements OnlineServices {
 			if (m_menu != null) {
 				MenuItem search = m_menu.findItem(R.id.search);
 			
-				if (search != null) {
+				if (search != null && !m_compatMode) {
 					SearchView sv = (SearchView) search.getActionView();
 					sv.setQuery("", false);				
 				}
@@ -1577,12 +1635,12 @@ public class MainActivity extends Activity implements OnlineServices {
 			
 			HeadlinesFragment hf = new HeadlinesFragment();
 
-			FragmentTransaction ft = getFragmentManager()
+			FragmentTransaction ft = getSupportFragmentManager()
 					.beginTransaction();
 			ft.replace(R.id.headlines_fragment, hf);
 			ft.commit();
 		} else {
-			HeadlinesFragment hf = (HeadlinesFragment) getFragmentManager()
+			HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager()
 					.findFragmentById(R.id.headlines_fragment);
 			if (hf != null) {
 				hf.refresh(true);
@@ -1602,7 +1660,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 			FeedsFragment frag = new FeedsFragment();
 
-			FragmentTransaction ft = getFragmentManager()
+			FragmentTransaction ft = getSupportFragmentManager()
 					.beginTransaction();
 			ft.replace(R.id.feeds_fragment, frag);
 			ft.commit();
@@ -1617,7 +1675,7 @@ public class MainActivity extends Activity implements OnlineServices {
 			if (m_menu != null) {
 				MenuItem search = m_menu.findItem(R.id.search);
 			
-				if (search != null) {
+				if (search != null && !m_compatMode) {
 					SearchView sv = (SearchView) search.getActionView();
 					sv.setQuery("", false);				
 				}
@@ -1625,7 +1683,7 @@ public class MainActivity extends Activity implements OnlineServices {
 			
 			HeadlinesFragment frag = new HeadlinesFragment();
 
-			FragmentTransaction ft = getFragmentManager()
+			FragmentTransaction ft = getSupportFragmentManager()
 					.beginTransaction();
 			ft.replace(R.id.headlines_fragment, frag);
 			ft.commit();
@@ -1645,7 +1703,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 		initMainMenu();
 
-		HeadlinesFragment hf = (HeadlinesFragment) getFragmentManager()
+		HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
 
 		if (hf != null) {
@@ -1669,7 +1727,7 @@ public class MainActivity extends Activity implements OnlineServices {
 			frag = new ArticleFragment(article);
 		}
 
-		FragmentTransaction ft = getFragmentManager().beginTransaction();
+		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 		ft.replace(R.id.article_fragment, frag);
 		ft.commit();
 
@@ -1764,11 +1822,11 @@ public class MainActivity extends Activity implements OnlineServices {
 		AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
 				.getMenuInfo();
 
-		HeadlinesFragment hf = (HeadlinesFragment) getFragmentManager()
+		HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
-		FeedsFragment ff = (FeedsFragment) getFragmentManager()
+		FeedsFragment ff = (FeedsFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.feeds_fragment);
-		FeedCategoriesFragment cf = (FeedCategoriesFragment) getFragmentManager()
+		FeedCategoriesFragment cf = (FeedCategoriesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.cats_fragment);
 
 		switch (item.getItemId()) {
@@ -1926,7 +1984,7 @@ public class MainActivity extends Activity implements OnlineServices {
 
 	@Override
 	public Article getRelativeArticle(Article article, RelativeArticle ra) {
-		HeadlinesFragment frag = (HeadlinesFragment) getFragmentManager()
+		HeadlinesFragment frag = (HeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
 		if (frag != null) {
 			ArticleList articles = frag.getAllArticles();
@@ -1960,7 +2018,7 @@ public class MainActivity extends Activity implements OnlineServices {
 		switch (keyCode) {
 		case KeyEvent.KEYCODE_VOLUME_DOWN:
 			if (action == KeyEvent.ACTION_DOWN) {
-				HeadlinesFragment hf = (HeadlinesFragment) getFragmentManager()
+				HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.headlines_fragment);
 
 				if (hf != null && m_activeFeed != null) {
@@ -1987,7 +2045,7 @@ public class MainActivity extends Activity implements OnlineServices {
 			return true;
 		case KeyEvent.KEYCODE_VOLUME_UP:
 			if (action == KeyEvent.ACTION_UP) {
-				HeadlinesFragment hf = (HeadlinesFragment) getFragmentManager()
+				HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.headlines_fragment);
 
 				if (hf != null && m_activeFeed != null) {

src/org/fox/ttrss/offline/OfflineActivity.java

@@ -3,23 +3,14 @@ package org.fox.ttrss.offline;
 import org.fox.ttrss.DummyFragment;
 import org.fox.ttrss.MainActivity;
 import org.fox.ttrss.OnlineServices;
-import org.fox.ttrss.PreferencesActivity;
-import org.fox.ttrss.R;
 import org.fox.ttrss.OnlineServices.RelativeArticle;
-import org.fox.ttrss.R.anim;
+import org.fox.ttrss.PreferencesActivity;
-import org.fox.ttrss.R.id;
-import org.fox.ttrss.R.layout;
-import org.fox.ttrss.R.menu;
-import org.fox.ttrss.R.string;
-import org.fox.ttrss.R.style;
 import org.fox.ttrss.util.DatabaseHelper;
+import org.fox.ttrss.R;
 
 import android.animation.LayoutTransition;
-import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.Dialog;
-import android.app.Fragment;
-import android.app.FragmentTransaction;
 import android.app.NotificationManager;
 import android.content.Context;
 import android.content.DialogInterface;
@@ -33,6 +24,9 @@ import android.database.sqlite.SQLiteStatement;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.provider.BaseColumns;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentTransaction;
 import android.util.Log;
 import android.view.ActionMode;
 import android.view.KeyEvent;
@@ -48,7 +42,7 @@ import android.widget.SearchView;
 import android.widget.TextView;
 import android.widget.Toast;
 
-public class OfflineActivity extends Activity implements
+public class OfflineActivity extends FragmentActivity implements
 		OfflineServices {
 	private final String TAG = this.getClass().getSimpleName();
 
@@ -58,6 +52,7 @@ public class OfflineActivity extends Activity implements
 	private boolean m_smallScreenMode;
 	private boolean m_unreadOnly = true;
 	private boolean m_unreadArticlesOnly = true;
+	private boolean m_compatMode = false;
 	private boolean m_enableCats = false;
 
 	private int m_activeFeedId = 0;
@@ -110,6 +105,8 @@ public class OfflineActivity extends Activity implements
 		m_prefs = PreferenceManager
 				.getDefaultSharedPreferences(getApplicationContext());
 
+		m_compatMode = android.os.Build.VERSION.SDK_INT <= 10;
+
 		if (m_prefs.getString("theme", "THEME_DARK").equals("THEME_DARK")) {
 			setTheme(R.style.DarkTheme);
 		} else {
@@ -133,13 +130,15 @@ public class OfflineActivity extends Activity implements
 
 		m_enableCats = m_prefs.getBoolean("enable_cats", false);
 
-		m_smallScreenMode = (getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) != 
+		m_smallScreenMode = m_compatMode || (getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) != 
 				Configuration.SCREENLAYOUT_SIZE_XLARGE;
 
 		setContentView(R.layout.main);
 
 		Log.d(TAG, "m_smallScreenMode=" + m_smallScreenMode);
+		Log.d(TAG, "m_compatMode=" + m_compatMode);
 
+		if (!m_compatMode) {
 			if (android.os.Build.VERSION.SDK_INT < 14 /* || android.os.Build.VERSION.SDK_INT == 15 */) {
 				if (!m_smallScreenMode) {
 					LayoutTransition transitioner = new LayoutTransition();
@@ -148,6 +147,7 @@ public class OfflineActivity extends Activity implements
 			}
 			
 			m_headlinesActionModeCallback = new HeadlinesActionModeCallback();
+		}
 
 		initMainMenu();
 
@@ -196,7 +196,7 @@ public class OfflineActivity extends Activity implements
 		}
 
 		if (m_activeFeedId == 0) {
-			FragmentTransaction ft = getFragmentManager()
+			FragmentTransaction ft = getSupportFragmentManager()
 					.beginTransaction();
 			OfflineFeedsFragment frag = new OfflineFeedsFragment();
 			ft.replace(R.id.feeds_fragment, frag);
@@ -343,14 +343,14 @@ public class OfflineActivity extends Activity implements
 				// }
 				m_activeFeedId = 0;
 				
-				OfflineFeedsFragment ff = (OfflineFeedsFragment) getFragmentManager()
+				OfflineFeedsFragment ff = (OfflineFeedsFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.feeds_fragment);
 				
 				if (ff != null) {
 					ff.setSelectedFeedId(0);
 				}
 				
-				FragmentTransaction ft = getFragmentManager().beginTransaction();
+				FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 				ft.replace(R.id.headlines_fragment, new OfflineHeadlinesFragment());
 				ft.commit();
 				
@@ -367,14 +367,14 @@ public class OfflineActivity extends Activity implements
 				findViewById(R.id.headlines_fragment).setVisibility(View.INVISIBLE);
 				m_activeFeedId = 0;
 				
-				OfflineFeedsFragment ff = (OfflineFeedsFragment) getFragmentManager()
+				OfflineFeedsFragment ff = (OfflineFeedsFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.feeds_fragment);
 				
 				if (ff != null) {
 					ff.setSelectedFeedId(0);
 				}
 
-				FragmentTransaction ft = getFragmentManager().beginTransaction();
+				FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 				ft.replace(R.id.headlines_fragment, new OfflineHeadlinesFragment());
 				ft.commit();
 
@@ -472,7 +472,7 @@ public class OfflineActivity extends Activity implements
 	}
 
 	private void refreshHeadlines() {
-		OfflineHeadlinesFragment ohf = (OfflineHeadlinesFragment) getFragmentManager()
+		OfflineHeadlinesFragment ohf = (OfflineHeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
 
 		if (ohf != null) {
@@ -482,12 +482,50 @@ public class OfflineActivity extends Activity implements
 
 	@Override
 	public boolean onOptionsItemSelected(MenuItem item) {
-		final OfflineHeadlinesFragment ohf = (OfflineHeadlinesFragment) getFragmentManager()
+		final OfflineHeadlinesFragment ohf = (OfflineHeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
 
 		switch (item.getItemId()) {
 		case android.R.id.home:
 			goBack(false);
+			return true;
+		case R.id.search:
+			if (ohf != null && m_compatMode) {
+				Dialog dialog = new Dialog(this);
+
+				final EditText edit = new EditText(this);
+
+				AlertDialog.Builder builder = new AlertDialog.Builder(this)
+						.setTitle(R.string.search)
+						.setPositiveButton(getString(R.string.search),
+								new OnClickListener() {
+
+									@Override
+									public void onClick(DialogInterface dialog,
+											int which) {
+										
+										String query = edit.getText().toString().trim();
+										
+										ohf.setSearchQuery(query);
+
+									}
+								})
+						.setNegativeButton(getString(R.string.cancel),
+								new OnClickListener() {
+
+									@Override
+									public void onClick(DialogInterface dialog,
+											int which) {
+										
+										//
+
+									}
+								}).setView(edit);
+				
+				dialog = builder.create();
+				dialog.show();
+			}
+			
 			return true;
 		case R.id.preferences:
 			Intent intent = new Intent(this, PreferencesActivity.class);
@@ -657,7 +695,7 @@ public class OfflineActivity extends Activity implements
 	}
 
 	private void refreshFeeds() {
-		OfflineFeedsFragment frag = (OfflineFeedsFragment) getFragmentManager()
+		OfflineFeedsFragment frag = (OfflineFeedsFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.feeds_fragment);
 
 		if (frag != null) {
@@ -685,7 +723,7 @@ public class OfflineActivity extends Activity implements
 
 		m_selectedArticleId = 0;
 		
-		FragmentTransaction ft = getFragmentManager().beginTransaction();
+		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 		ft.replace(R.id.article_fragment, new DummyFragment());
 		ft.commit();
 
@@ -714,8 +752,12 @@ public class OfflineActivity extends Activity implements
 			m_menu.setGroupVisible(R.id.menu_group_article, false);
 			
 			if (numSelected != 0) {
+				if (m_compatMode) {
+					m_menu.setGroupVisible(R.id.menu_group_headlines_selection, true);
+				} else {
 					if (m_headlinesActionMode == null)
 						m_headlinesActionMode = startActionMode(m_headlinesActionModeCallback);
+				}
 			} else if (m_selectedArticleId != 0) {
 				m_menu.setGroupVisible(R.id.menu_group_article, true);
 			} else if (m_activeFeedId != 0) {
@@ -723,13 +765,14 @@ public class OfflineActivity extends Activity implements
 				
 				MenuItem search = m_menu.findItem(R.id.search);
 				
+				if (!m_compatMode) {
 					SearchView searchView = (SearchView) search.getActionView();
 					searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
 						private String query = "";
 						
 						@Override
 						public boolean onQueryTextSubmit(String query) {
-						OfflineHeadlinesFragment frag = (OfflineHeadlinesFragment) getFragmentManager()
+							OfflineHeadlinesFragment frag = (OfflineHeadlinesFragment) getSupportFragmentManager()
 									.findFragmentById(R.id.headlines_fragment);
 							
 							if (frag != null) {
@@ -743,7 +786,7 @@ public class OfflineActivity extends Activity implements
 						@Override
 						public boolean onQueryTextChange(String newText) {
 							if (newText.equals("") && !newText.equals(this.query)) {
-							OfflineHeadlinesFragment frag = (OfflineHeadlinesFragment) getFragmentManager()
+								OfflineHeadlinesFragment frag = (OfflineHeadlinesFragment) getSupportFragmentManager()
 										.findFragmentById(R.id.headlines_fragment);
 								
 								if (frag != null) {
@@ -755,6 +798,7 @@ public class OfflineActivity extends Activity implements
 							return false;
 						}
 					});
+				}
 				
 			} else {
 				m_menu.setGroupVisible(R.id.menu_group_feeds, true);
@@ -764,6 +808,8 @@ public class OfflineActivity extends Activity implements
 				m_headlinesActionMode.finish();
 			}
 			
+			if (!m_compatMode) {
+				
 				if (m_activeFeedId != 0) {
 					Cursor feed = getFeedById(m_activeFeedId);
 					
@@ -781,6 +827,7 @@ public class OfflineActivity extends Activity implements
 				}
 			}
 		}
+	}
 
 	@Override
 	public void onPause() {
@@ -807,9 +854,9 @@ public class OfflineActivity extends Activity implements
 		AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
 				.getMenuInfo();
 
-		OfflineHeadlinesFragment hf = (OfflineHeadlinesFragment) getFragmentManager()
+		OfflineHeadlinesFragment hf = (OfflineHeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
-		OfflineFeedsFragment ff = (OfflineFeedsFragment) getFragmentManager()
+		OfflineFeedsFragment ff = (OfflineFeedsFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.feeds_fragment);
 
 		switch (item.getItemId()) {
@@ -972,7 +1019,7 @@ public class OfflineActivity extends Activity implements
 		case KeyEvent.KEYCODE_VOLUME_DOWN:
 			if (action == KeyEvent.ACTION_DOWN) {
 
-				OfflineHeadlinesFragment ohf = (OfflineHeadlinesFragment) getFragmentManager()
+				OfflineHeadlinesFragment ohf = (OfflineHeadlinesFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.headlines_fragment);
 
 				int nextId = getRelativeArticleId(m_selectedArticleId,
@@ -1001,7 +1048,7 @@ public class OfflineActivity extends Activity implements
 		case KeyEvent.KEYCODE_VOLUME_UP:
 			if (action == KeyEvent.ACTION_UP) {
 
-				OfflineHeadlinesFragment ohf = (OfflineHeadlinesFragment) getFragmentManager()
+				OfflineHeadlinesFragment ohf = (OfflineHeadlinesFragment) getSupportFragmentManager()
 						.findFragmentById(R.id.headlines_fragment);
 
 				int prevId = getRelativeArticleId(m_selectedArticleId,
@@ -1104,13 +1151,13 @@ public class OfflineActivity extends Activity implements
 		if (m_menu != null) {
 			MenuItem search = m_menu.findItem(R.id.search);
 		
-			if (search != null) {
+			if (search != null && !m_compatMode) {
 				SearchView sv = (SearchView) search.getActionView();
 				sv.setQuery("", false);				
 			}
 		}
 		
-		FragmentTransaction ft = getFragmentManager().beginTransaction();
+		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 		OfflineHeadlinesFragment frag = new OfflineHeadlinesFragment();
 		ft.replace(R.id.headlines_fragment, frag);
 		ft.commit();
@@ -1123,7 +1170,7 @@ public class OfflineActivity extends Activity implements
 
 		initMainMenu();
 
-		OfflineHeadlinesFragment hf = (OfflineHeadlinesFragment) getFragmentManager()
+		OfflineHeadlinesFragment hf = (OfflineHeadlinesFragment) getSupportFragmentManager()
 				.findFragmentById(R.id.headlines_fragment);
 
 		if (hf != null) {
@@ -1146,7 +1193,7 @@ public class OfflineActivity extends Activity implements
 			frag = new OfflineArticleFragment(articleId);
 		}
 
-		FragmentTransaction ft = getFragmentManager().beginTransaction();
+		FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 		ft.replace(R.id.article_fragment, frag);
 		ft.commit();
 		

src/org/fox/ttrss/offline/OfflineArticleFragment.java

@@ -15,20 +15,20 @@ import org.jsoup.nodes.Element;
 import org.jsoup.select.Elements;
 
 import android.app.Activity;
-import android.app.Fragment;
 import android.content.SharedPreferences;
 import android.database.Cursor;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.provider.BaseColumns;
+import android.support.v4.app.Fragment;
 import android.text.Html;
 import android.text.method.LinkMovementMethod;
 import android.util.TypedValue;
 import android.view.ContextMenu;
-import android.view.ContextMenu.ContextMenuInfo;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.ContextMenu.ContextMenuInfo;
 import android.webkit.WebSettings;
 import android.webkit.WebView;
 import android.widget.TextView;

src/org/fox/ttrss/offline/OfflineArticlePager.java

@@ -3,14 +3,15 @@ package org.fox.ttrss.offline;
 import org.fox.ttrss.R;
 import org.fox.ttrss.R.id;
 import org.fox.ttrss.R.layout;
-import org.fox.ttrss.util.FragmentStatePagerAdapter;
 
 import android.app.Activity;
-import android.app.Fragment;
+import android.database.Cursor;
-import android.app.FragmentManager;
 import android.database.sqlite.SQLiteStatement;
 import android.os.Bundle;
 import android.provider.BaseColumns;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentStatePagerAdapter;
 import android.support.v4.view.ViewPager;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -61,7 +62,7 @@ public class OfflineArticlePager extends Fragment {
 	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {    	
 		View view = inflater.inflate(R.layout.article_pager, container, false);
 	
-		m_adapter = new PagerAdapter(getActivity().getFragmentManager());
+		m_adapter = new PagerAdapter(getActivity().getSupportFragmentManager());
 		
 		ViewPager pager = (ViewPager) view.findViewById(R.id.article_pager);
 		
@@ -104,7 +105,7 @@ public class OfflineArticlePager extends Fragment {
 	public void onAttach(Activity activity) {
 		super.onAttach(activity);		
 		
-		m_hf = (OfflineHeadlinesFragment) getActivity().getFragmentManager().findFragmentById(R.id.headlines_fragment);
+		m_hf = (OfflineHeadlinesFragment) getActivity().getSupportFragmentManager().findFragmentById(R.id.headlines_fragment);
 		m_offlineServices = (OfflineServices)activity;
 	}
 

src/org/fox/ttrss/offline/OfflineFeedsFragment.java

@@ -9,7 +9,6 @@ import org.fox.ttrss.R.layout;
 import org.fox.ttrss.R.menu;
 
 import android.app.Activity;
-import android.app.Fragment;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
@@ -20,6 +19,8 @@ import android.os.Bundle;
 import android.os.Environment;
 import android.preference.PreferenceManager;
 import android.provider.BaseColumns;
+import android.support.v4.app.Fragment;
+import android.support.v4.widget.SimpleCursorAdapter;
 import android.util.Log;
 import android.view.ContextMenu;
 import android.view.ContextMenu.ContextMenuInfo;
@@ -31,7 +32,6 @@ import android.widget.AdapterView.AdapterContextMenuInfo;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ImageView;
 import android.widget.ListView;
-import android.widget.SimpleCursorAdapter;
 import android.widget.TextView;
 
 public class OfflineFeedsFragment extends Fragment implements OnItemClickListener, OnSharedPreferenceChangeListener {

src/org/fox/ttrss/offline/OfflineHeadlinesFragment.java

@@ -14,7 +14,6 @@ import org.fox.ttrss.R.string;
 import org.jsoup.Jsoup;
 
 import android.app.Activity;
-import android.app.Fragment;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.database.Cursor;
@@ -24,6 +23,8 @@ import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.provider.BaseColumns;
+import android.support.v4.app.Fragment;
+import android.support.v4.widget.SimpleCursorAdapter;
 import android.text.Html;
 import android.text.Html.ImageGetter;
 import android.text.method.LinkMovementMethod;
@@ -40,7 +41,6 @@ import android.widget.AdapterView.OnItemClickListener;
 import android.widget.CheckBox;
 import android.widget.ImageView;
 import android.widget.ListView;
-import android.widget.SimpleCursorAdapter;
 import android.widget.TextView;
 
 public class OfflineHeadlinesFragment extends Fragment implements OnItemClickListener {

src/org/fox/ttrss/util/FragmentStatePagerAdapter.java

@@ -1,226 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.fox.ttrss.util;
-
-import android.app.Fragment;
-import android.app.FragmentManager;
-import android.app.FragmentTransaction;
-import android.os.Bundle;
-import android.os.Parcelable;
-import android.support.v4.app.FragmentPagerAdapter;
-import android.support.v4.view.PagerAdapter;
-import android.util.Log;
-import android.view.View;
-import android.view.ViewGroup;
-
-import java.util.ArrayList;
-
-/**
- * Implementation of {@link android.support.v4.view.PagerAdapter} that
- * uses a {@link Fragment} to manage each page. This class also handles
- * saving and restoring of fragment's state.
- *
- * <p>This version of the pager is more useful when there are a large number
- * of pages, working more like a list view.  When pages are not visible to
- * the user, their entire fragment may be destroyed, only keeping the saved
- * state of that fragment.  This allows the pager to hold on to much less
- * memory associated with each visited page as compared to
- * {@link FragmentPagerAdapter} at the cost of potentially more overhead when
- * switching between pages.
- *
- * <p>When using FragmentPagerAdapter the host ViewPager must have a
- * valid ID set.</p>
- *
- * <p>Subclasses only need to implement {@link #getItem(int)}
- * and {@link #getCount()} to have a working adapter.
- *
- * <p>Here is an example implementation of a pager containing fragments of
- * lists:
- *
- * {@sample development/samples/Support4Demos/src/com/example/android/supportv4/app/FragmentStatePagerSupport.java
- *      complete}
- *
- * <p>The <code>R.layout.fragment_pager</code> resource of the top-level fragment is:
- *
- * {@sample development/samples/Support4Demos/res/layout/fragment_pager.xml
- *      complete}
- *
- * <p>The <code>R.layout.fragment_pager_list</code> resource containing each
- * individual fragment's layout is:
- *
- * {@sample development/samples/Support4Demos/res/layout/fragment_pager_list.xml
- *      complete}
- */
-public abstract class FragmentStatePagerAdapter extends PagerAdapter {
-    private static final String TAG = "FragmentStatePagerAdapter";
-    private static final boolean DEBUG = false;
-
-    private final FragmentManager mFragmentManager;
-    private FragmentTransaction mCurTransaction = null;
-
-    private ArrayList<Fragment.SavedState> mSavedState = new ArrayList<Fragment.SavedState>();
-    private ArrayList<Fragment> mFragments = new ArrayList<Fragment>();
-    private Fragment mCurrentPrimaryItem = null;
-
-    public FragmentStatePagerAdapter(FragmentManager fm) {
-        mFragmentManager = fm;
-    }
-
-    /**
-     * Return the Fragment associated with a specified position.
-     */
-    public abstract Fragment getItem(int position);
-
-    @Override
-    public void startUpdate(ViewGroup container) {
-    }
-
-    @Override
-    public Object instantiateItem(ViewGroup container, int position) {
-        // If we already have this item instantiated, there is nothing
-        // to do.  This can happen when we are restoring the entire pager
-        // from its saved state, where the fragment manager has already
-        // taken care of restoring the fragments we previously had instantiated.
-        if (mFragments.size() > position) {
-            Fragment f = mFragments.get(position);
-            if (f != null) {
-                return f;
-            }
-        }
-
-        if (mCurTransaction == null) {
-            mCurTransaction = mFragmentManager.beginTransaction();
-        }
-
-        Fragment fragment = getItem(position);
-        if (DEBUG) Log.v(TAG, "Adding item #" + position + ": f=" + fragment);
-        if (mSavedState.size() > position) {
-            Fragment.SavedState fss = mSavedState.get(position);
-            if (fss != null) {
-                fragment.setInitialSavedState(fss);
-            }
-        }
-        while (mFragments.size() <= position) {
-            mFragments.add(null);
-        }
-        fragment.setMenuVisibility(false);
-        mFragments.set(position, fragment);
-        mCurTransaction.add(container.getId(), fragment);
-
-        return fragment;
-    }
-
-    @Override
-    public void destroyItem(ViewGroup container, int position, Object object) {
-        Fragment fragment = (Fragment)object;
-
-        if (mCurTransaction == null) {
-            mCurTransaction = mFragmentManager.beginTransaction();
-        }
-        if (DEBUG) Log.v(TAG, "Removing item #" + position + ": f=" + object
-                + " v=" + ((Fragment)object).getView());
-        while (mSavedState.size() <= position) {
-            mSavedState.add(null);
-        }
-        mSavedState.set(position, mFragmentManager.saveFragmentInstanceState(fragment));
-        mFragments.set(position, null);
-
-        mCurTransaction.remove(fragment);
-    }
-
-    @Override
-    public void setPrimaryItem(ViewGroup container, int position, Object object) {
-        Fragment fragment = (Fragment)object;
-        if (fragment != mCurrentPrimaryItem) {
-            if (mCurrentPrimaryItem != null) {
-                fragment.setMenuVisibility(false);
-            }
-            if (fragment != null) {
-                fragment.setMenuVisibility(true);
-            }
-            mCurrentPrimaryItem = fragment;
-        }
-    }
-
-    @Override
-    public void finishUpdate(ViewGroup container) {
-        if (mCurTransaction != null) {
-            mCurTransaction.commitAllowingStateLoss();
-            mCurTransaction = null;
-            mFragmentManager.executePendingTransactions();
-        }
-    }
-
-    @Override
-    public boolean isViewFromObject(View view, Object object) {
-        return ((Fragment)object).getView() == view;
-    }
-
-    @Override
-    public Parcelable saveState() {
-        Bundle state = null;
-        if (mSavedState.size() > 0) {
-            state = new Bundle();
-            Fragment.SavedState[] fss = new Fragment.SavedState[mSavedState.size()];
-            mSavedState.toArray(fss);
-            state.putParcelableArray("states", fss);
-        }
-        for (int i=0; i<mFragments.size(); i++) {
-            Fragment f = mFragments.get(i);
-            if (f != null) {
-                if (state == null) {
-                    state = new Bundle();
-                }
-                String key = "f" + i;
-                mFragmentManager.putFragment(state, key, f);
-            }
-        }
-        return state;
-    }
-
-    @Override
-    public void restoreState(Parcelable state, ClassLoader loader) {
-        if (state != null) {
-            Bundle bundle = (Bundle)state;
-            bundle.setClassLoader(loader);
-            Parcelable[] fss = bundle.getParcelableArray("states");
-            mSavedState.clear();
-            mFragments.clear();
-            if (fss != null) {
-                for (int i=0; i<fss.length; i++) {
-                    mSavedState.add((Fragment.SavedState)fss[i]);
-                }
-            }
-            Iterable<String> keys = bundle.keySet();
-            for (String key: keys) {
-                if (key.startsWith("f")) {
-                    int index = Integer.parseInt(key.substring(1));
-                    Fragment f = mFragmentManager.getFragment(bundle, key);
-                    if (f != null) {
-                        while (mFragments.size() <= index) {
-                            mFragments.add(null);
-                        }
-                        f.setMenuVisibility(false);
-                        mFragments.set(index, f);
-                    } else {
-                        Log.w(TAG, "Bad fragment at key " + key);
-                    }
-                }
-            }
-        }
-    }
-}