Add search support for v11+

res/layout/empty2.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content">
+    <ImageView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:src="@drawable/ic_menu_search_holo_dark"
+        android:visibility="invisible"/>
+</FrameLayout>

res/menu/conversation_list.xml

@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:title="Batch Mode"
-          android:id="@+id/menu_batch_mode"
-          android:icon="@android:drawable/ic_menu_share" />
 
     <item android:title="Search"
           android:id="@+id/menu_search"

res/menu/conversation_list_empty.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/fake_menu_item"
+          android:actionLayout="@layout/empty2"
+          android:showAsAction="ifRoom" />
+</menu>

src/org/thoughtcrime/securesms/ConversationListFragment.java

@@ -20,6 +20,7 @@ import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.database.Cursor;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.Loader;
@@ -50,6 +51,7 @@ public class ConversationListFragment extends SherlockListFragment
 
   private ConversationSelectedListener listener;
   private MasterSecret masterSecret;
+  private String queryFilter = "";
 
   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
@@ -75,9 +77,13 @@ public class ConversationListFragment extends SherlockListFragment
 
   @Override
   public void onPrepareOptionsMenu(Menu menu) {
-    if (this.masterSecret != null) {
     MenuInflater inflater = this.getSherlockActivity().getSupportMenuInflater();
+
+    if (this.masterSecret != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
       inflater.inflate(R.menu.conversation_list, menu);
+      initializeSearch((android.widget.SearchView)menu.findItem(R.id.menu_search).getActionView());
+    } else {
+      inflater.inflate(R.menu.conversation_list_empty, menu);
     }
 
     super.onPrepareOptionsMenu(menu);
@@ -96,6 +102,21 @@ public class ConversationListFragment extends SherlockListFragment
     initializeListAdapter();
   }
 
+  private void initializeSearch(android.widget.SearchView searchView) {
+    searchView.setOnQueryTextListener(new android.widget.SearchView.OnQueryTextListener() {
+      @Override
+      public boolean onQueryTextSubmit(String query) {
+        ConversationListFragment.this.queryFilter = query;
+        ConversationListFragment.this.getLoaderManager().restartLoader(0, null, ConversationListFragment.this);
+        return true;
+      }
+      @Override
+      public boolean onQueryTextChange(String newText) {
+        return onQueryTextSubmit(newText);
+      }
+    });
+  }
+
   private void initializeBatchListener() {
     getListView().setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
       @Override
@@ -159,7 +180,7 @@ public class ConversationListFragment extends SherlockListFragment
 
   @Override
   public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
-    return new ConversationListLoader(getActivity(), null);
+    return new ConversationListLoader(getActivity(), queryFilter);
   }
 
   @Override

src/org/thoughtcrime/securesms/database/loaders/ConversationListLoader.java

@@ -4,8 +4,11 @@ import android.content.Context;
 import android.database.Cursor;
 import android.support.v4.content.CursorLoader;
 
+import org.thoughtcrime.securesms.contacts.ContactAccessor;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
 
+import java.util.List;
+
 public class ConversationListLoader extends CursorLoader {
 
   private final String filter;
@@ -19,7 +22,13 @@ public class ConversationListLoader extends CursorLoader {
 
   @Override
   public Cursor loadInBackground() {
+    if (filter != null && filter.trim().length() != 0) {
+      List<String> numbers = ContactAccessor.getInstance()
+          .getNumbersForThreadSearchFilter(filter, context.getContentResolver());
+
+      return DatabaseFactory.getThreadDatabase(context).getFilteredConversationList(numbers);
+    } else {
       return DatabaseFactory.getThreadDatabase(context).getConversationList();
     }
-
+  }
 }