use delayed loading for several containers in tablet mode to visually

speed things up

res/layout/loading_fragment.xml

@@ -0,0 +1,13 @@
+
+    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent" >
+
+        <ProgressBar
+            android:id="@+id/progressBar1"
+            style="?android:attr/progressBarStyleLarge"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center" />
+
+    </FrameLayout>

src/org/fox/ttrss/FeedsActivity.java

@@ -12,6 +12,7 @@ import android.annotation.SuppressLint;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.os.Handler;
 import android.preference.PreferenceManager;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentTransaction;
@@ -148,11 +149,27 @@ public class FeedsActivity extends OnlineActivity implements HeadlinesEventListe
 			FragmentTransaction ft = getSupportFragmentManager()
 					.beginTransaction();
 
-			HeadlinesFragment hf = new HeadlinesFragment(feed);
+			ft.replace(R.id.headlines_fragment, new LoadingFragment(), null);
-			ft.replace(R.id.headlines_fragment, hf, FRAG_HEADLINES);
-			
 			ft.commit();
 			
+			Handler handler = new Handler();
+			
+			final Feed fFeed = feed;
+			
+			handler.postDelayed(new Runnable() {
+				@Override
+				public void run() {
+					FragmentTransaction ft = getSupportFragmentManager()
+							.beginTransaction();
+
+					HeadlinesFragment hf = new HeadlinesFragment(fFeed);
+					ft.replace(R.id.headlines_fragment, hf, FRAG_HEADLINES);
+					
+					ft.commit();
+				}
+			}, 25);
+			
+
 			Date date = new Date();
 
 			if (date.getTime() - m_lastRefresh > 10000) {

src/org/fox/ttrss/HeadlinesActivity.java

@@ -8,6 +8,7 @@ import android.annotation.SuppressLint;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.os.Handler;
 import android.preference.PreferenceManager;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentTransaction;
@@ -46,24 +47,39 @@ public class HeadlinesActivity extends OnlineActivity implements HeadlinesEventL
 			Intent i = getIntent();
 			
 			if (i.getExtras() != null) {
-				Feed feed = i.getParcelableExtra("feed");
+				final Feed feed = i.getParcelableExtra("feed");
-				Article article = i.getParcelableExtra("article");
+				final Article article = i.getParcelableExtra("article");
-				String searchQuery = i.getStringExtra("searchQuery");
+				final String searchQuery = i.getStringExtra("searchQuery");
-				
-				HeadlinesFragment hf = new HeadlinesFragment(feed, article);
-				ArticlePager af = new ArticlePager(hf.getArticleById(article.id), feed);
-
-				hf.setSearchQuery(searchQuery);
-				af.setSearchQuery(searchQuery);
 				
 				FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
 
-				ft.replace(R.id.headlines_fragment, hf, FRAG_HEADLINES);
+				ft.replace(R.id.headlines_fragment, new LoadingFragment(), null);
-				ft.replace(R.id.article_fragment, af, FRAG_ARTICLE);
+				ft.replace(R.id.article_fragment, new LoadingFragment(), null);
 				
 				ft.commit();
 				
 				setTitle(feed.title);
+
+				Handler handler = new Handler();
+				
+				handler.postDelayed(new Runnable() {
+					@Override
+					public void run() {
+						FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
+
+						HeadlinesFragment hf = new HeadlinesFragment(feed, article);
+						hf.setSearchQuery(searchQuery);
+
+						ArticlePager af = new ArticlePager(hf.getArticleById(article.id), feed);
+						af.setSearchQuery(searchQuery);
+
+						ft.replace(R.id.headlines_fragment, hf, FRAG_HEADLINES);
+						ft.replace(R.id.article_fragment, af, FRAG_ARTICLE);
+						
+						ft.commit();
+					}
+				}, 25);
+				
 			}
 		} 
 	}
@@ -152,7 +168,9 @@ public class HeadlinesActivity extends OnlineActivity implements HeadlinesEventL
 			ft.commit();
 		} else {
 			HeadlinesFragment hf = (HeadlinesFragment) getSupportFragmentManager().findFragmentByTag(FRAG_HEADLINES);
-			hf.setActiveArticle(article);
+			if (hf != null) {
+				hf.setActiveArticle(article);
+			}
 		}
 
 		GlobalState.getInstance().m_activeArticle = article;

src/org/fox/ttrss/LoadingFragment.java

@@ -0,0 +1,18 @@
+package org.fox.ttrss;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+public class LoadingFragment extends Fragment {
+	@Override
+	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {    	
+
+		View view = inflater.inflate(R.layout.loading_fragment, container, false);
+		
+		return view;
+	}
+
+}