Fix the look of tabbed multi-contact selector.

1) Updated to ActionBar style.
2) Split out into fragments.
3) Switch to cursor loaders.

AndroidManifest.xml

@@ -39,6 +39,11 @@
               android:windowSoftInputMode="stateVisible"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"/>
 
+    <activity android:name=".ContactSelectionActivity"
+              android:label="Select Contacts"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"/>
+
+
     <activity android:name=".AutoInitiateActivity" android:theme="@android:style/Theme.Dialog" android:label="TextSecure Messaging Detected" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
     <activity android:name=".ApplicationPreferencesActivity" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
     <activity android:name=".PassphraseCreateActivity" android:theme="@android:style/Theme.Dialog" android:label="Create Passphrase" android:launchMode="singleInstance" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
@@ -51,11 +56,6 @@
     <activity android:name=".ViewIdentityActivity" android:theme="@android:style/Theme.Dialog" android:label="Public Identity Key" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
     <activity android:name=".SaveIdentityActivity" android:theme="@android:style/Theme.Dialog" android:label="Save Identity" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
     <activity android:name=".ReviewIdentitiesActivity" android:theme="@android:style/Theme.Dialog" android:label="Manage Identity Keys (Long click)" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
-    <activity android:name=".ContactSelectionActivity" android:label="Contact Selection" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
-    <activity android:name=".ContactSelectionListActivity" android:label="Contact Selection" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
-    <activity android:name=".GroupSelectionListActivity" android:label="Group Selection" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
-    <activity android:name=".ContactSelectionRecentActivity" android:label="Recent Calls Selection" android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout"></activity>
-
 
     <service android:enabled="true" android:name=".service.KeyCachingService"></service>
     <service android:enabled="true" android:name=".service.SendReceiveService"></service>

res/layout/contact_selection_activity.xml

@@ -1,42 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2006 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.
--->
-
-<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@android:id/tabhost"
+<LinearLayout android:layout_gravity="center"
+              android:layout_height="fill_parent"
               android:layout_width="fill_parent"
-    android:layout_height="fill_parent">
-
-    <LinearLayout
               android:orientation="vertical"
-        android:layout_width="fill_parent"
-        android:layout_height="fill_parent">
+              xmlns:android="http://schemas.android.com/apk/res/android">
 
-        <TabWidget android:id="@android:id/tabs"
-            android:layout_width="fill_parent"
-            android:layout_height="68dip"
-            android:paddingLeft="1dip"
-            android:paddingRight="1dip"
-            android:paddingTop="4dip"
-        />
-
-        <FrameLayout android:id="@android:id/tabcontent"
-            android:layout_width="fill_parent"
-            android:layout_height="0dip"
-            android:layout_weight="1"
-        />
-    </LinearLayout>
-</TabHost>
+    <LinearLayout android:id="@+id/fragment_container"
+                  android:layout_height="match_parent"
+                  android:layout_width="match_parent"/>
 
+</LinearLayout>

res/menu/contact_selection.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:title="Finished"
+          android:id="@+id/menu_selection_finished"
+          android:icon="@drawable/ic_menu_done_holo_dark"
+          android:showAsAction="ifRoom"
+          />
+
+</menu>

res/menu/contact_selection_list.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:title="Select All"
+          android:id="@+id/menu_select_all" />
+
+    <item android:title="Unselect All"
+          android:id="@+id/menu_unselect_all" />
+</menu>

src/org/thoughtcrime/securesms/ContactSelectionActivity.java

@@ -16,13 +16,22 @@
  */
 package org.thoughtcrime.securesms;
 
-import org.thoughtcrime.securesms.service.KeyCachingService;
-
-import android.app.TabActivity;
 import android.content.Intent;
 import android.os.Bundle;
-import android.view.Window;
-import android.widget.TabHost;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentTransaction;
+
+import com.actionbarsherlock.app.ActionBar;
+import com.actionbarsherlock.app.ActionBar.Tab;
+import com.actionbarsherlock.app.ActionBar.TabListener;
+import com.actionbarsherlock.app.SherlockFragmentActivity;
+import com.actionbarsherlock.view.Menu;
+import com.actionbarsherlock.view.MenuInflater;
+import com.actionbarsherlock.view.MenuItem;
+
+import org.thoughtcrime.securesms.recipients.Recipients;
+import org.thoughtcrime.securesms.service.KeyCachingService;
 
 /**
  * Activity container for selecting a list of contacts.  Provides a tab frame for
@@ -32,20 +41,23 @@ import android.widget.TabHost;
  * @author Moxie Marlinspike
  *
  */
+public class ContactSelectionActivity extends SherlockFragmentActivity {
 
-public class ContactSelectionActivity extends TabActivity implements TabHost.OnTabChangeListener {
+  private ContactSelectionListFragment contactsFragment;
+  private ContactSelectionGroupsFragment groupsFragment;
+  private ContactSelectionRecentFragment recentFragment;
 
-  private TabHost tabHost;
+  private Recipients recipients;
 
   @Override
   protected void onCreate(Bundle icicle) {
     super.onCreate(icicle);
 
-    requestWindowFeature(Window.FEATURE_NO_TITLE);
-    setContentView(R.layout.contact_selection_activity);
+    ActionBar actionBar = this.getSupportActionBar();
+    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
+    actionBar.setDisplayHomeAsUpEnabled(true);
 
-    tabHost = getTabHost();
-    tabHost.setOnTabChangedListener(this);
+    setContentView(R.layout.contact_selection_activity);
 
     setupContactsTab();
     setupGroupsTab();
@@ -65,10 +77,90 @@ public class ContactSelectionActivity extends TabActivity implements TabHost.OnT
   }
 
   @Override
-  public boolean onSearchRequested() {
+  public boolean onCreateOptionsMenu(Menu menu) {
+    MenuInflater inflater = this.getSupportMenuInflater();
+    inflater.inflate(R.menu.contact_selection, menu);
+
+    return true;
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    switch (item.getItemId()) {
+    case R.id.menu_selection_finished:
+    case android.R.id.home:
+      handleSelectionFinished(); return true;
+    }
+
     return false;
   }
 
+  private void handleSelectionFinished() {
+    recipients = contactsFragment.getSelectedContacts();
+    recipients.append(recentFragment.getSelectedContacts());
+    recipients.append(groupsFragment.getSelectedContacts());
+
+    Intent resultIntent = getIntent();
+    resultIntent.putExtra("recipients", this.recipients);
+
+    setResult(RESULT_OK, resultIntent);
+
+    finish();
+  }
+
+  private ActionBar.Tab constructTab(final Fragment fragment) {
+    ActionBar actionBar = this.getSupportActionBar();
+    ActionBar.Tab tab   = actionBar.newTab();
+
+    tab.setTabListener(new TabListener(){
+      @Override
+      public void onTabSelected(Tab tab, FragmentTransaction ignore) {
+        FragmentManager manager = ContactSelectionActivity.this.getSupportFragmentManager();
+        FragmentTransaction ft  = manager.beginTransaction();
+
+        ft.add(R.id.fragment_container, fragment);
+        ft.commit();
+      }
+
+      @Override
+      public void onTabUnselected(Tab tab, FragmentTransaction ignore) {
+        FragmentManager manager = ContactSelectionActivity.this.getSupportFragmentManager();
+        FragmentTransaction ft  = manager.beginTransaction();
+        ft.remove(fragment);
+        ft.commit();
+      }
+      @Override
+      public void onTabReselected(Tab tab, FragmentTransaction ft) {}
+    });
+
+    return tab;
+  }
+
+  private void setupContactsTab() {
+    contactsFragment = (ContactSelectionListFragment)Fragment.instantiate(this,
+                        ContactSelectionListFragment.class.getName());
+    ActionBar.Tab contactsTab = constructTab(contactsFragment);
+    contactsTab.setIcon(R.drawable.ic_tab_contacts);
+    this.getSupportActionBar().addTab(contactsTab);
+  }
+
+  private void setupGroupsTab() {
+    groupsFragment = (ContactSelectionGroupsFragment)Fragment.instantiate(this,
+                      ContactSelectionGroupsFragment.class.getName());
+    ActionBar.Tab groupsTab = constructTab(groupsFragment);
+    groupsTab.setIcon(R.drawable.ic_tab_groups);
+    this.getSupportActionBar().addTab(groupsTab);
+  }
+
+  private void setupRecentTab() {
+    recentFragment = (ContactSelectionRecentFragment)Fragment.instantiate(this,
+                      ContactSelectionRecentFragment.class.getName());
+
+    ActionBar.Tab recentTab = constructTab(recentFragment);
+    recentTab.setIcon(R.drawable.ic_tab_recent);
+    this.getSupportActionBar().addTab(recentTab);
+  }
+
   private void registerPassphraseActivityStarted() {
     Intent intent = new Intent(this, KeyCachingService.class);
     intent.setAction(KeyCachingService.ACTIVITY_START_EVENT);
@@ -81,32 +173,6 @@ public class ContactSelectionActivity extends TabActivity implements TabHost.OnT
     startService(intent);
   }
 
-  private void setupGroupsTab() {
-    Intent intent = new Intent(this, GroupSelectionListActivity.class);
 
-    tabHost.addTab(tabHost.newTabSpec("groups")
-		   .setIndicator("Groups", getResources().getDrawable(android.R.drawable.ic_menu_share))
-		   .setContent(intent));
-  }
-    
-  private void setupRecentTab() {
-    Intent intent = new Intent(this, ContactSelectionRecentActivity.class);
-    	
-    tabHost.addTab(tabHost.newTabSpec("recent")
-		   .setIndicator("Recent", getResources().getDrawable(android.R.drawable.ic_menu_call))
-		   .setContent(intent));
-  }
-	
-  private void setupContactsTab() {
-    Intent intent = new Intent(this, ContactSelectionListActivity.class);
-
-    tabHost.addTab(tabHost.newTabSpec("contacts")
-		   .setIndicator("Contacts", getResources().getDrawable(android.R.drawable.ic_menu_agenda))
-		   .setContent(intent));
-  }
-
-  public void onTabChanged(String tabId) {
-	
-  }
 
 }

src/org/thoughtcrime/securesms/ContactSelectionGroupsFragment.java

@@ -0,0 +1,231 @@
+/**
+ * Copyright (C) 2011 Whisper Systems
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.thoughtcrime.securesms;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.os.Bundle;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.Loader;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckedTextView;
+import android.widget.CursorAdapter;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+
+import com.actionbarsherlock.app.SherlockListFragment;
+
+import org.thoughtcrime.securesms.contacts.ContactAccessor;
+import org.thoughtcrime.securesms.contacts.ContactAccessor.ContactData;
+import org.thoughtcrime.securesms.contacts.ContactAccessor.GroupData;
+import org.thoughtcrime.securesms.contacts.ContactAccessor.NumberData;
+import org.thoughtcrime.securesms.recipients.Recipient;
+import org.thoughtcrime.securesms.recipients.Recipients;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+
+/**
+ * An activity for selecting a list of "contact groups."  Displayed
+ * by ContactSelectionActivity in a tabbed frame, and ultimately called
+ * by ComposeMessageActivity for selecting a list of recipients.
+ *
+ * @author Moxie Marlinspike
+ *
+ */
+public class ContactSelectionGroupsFragment extends SherlockListFragment
+    implements LoaderManager.LoaderCallbacks<Cursor>
+{
+
+  private final HashMap<Long, GroupData> selectedGroups = new HashMap<Long, GroupData>();
+
+  @Override
+  public void onActivityCreated(Bundle icicle) {
+    super.onActivityCreated(icicle);
+
+    initializeResources();
+    initializeCursor();
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    return inflater.inflate(R.layout.contact_selection_group_activity, container, false);
+  }
+
+  @Override
+  public void onListItemClick(ListView l, View v, int position, long id) {
+    ((GroupItemView)v).selected();
+  }
+
+  private void initializeCursor() {
+    setListAdapter(new GroupSelectionListAdapter(getActivity(), null));
+    this.getLoaderManager().initLoader(0, null, this);
+  }
+
+  private void initializeResources() {
+    this.getListView().setFocusable(true);
+  }
+
+  public Recipients getSelectedContacts() {
+    List<Recipient> recipientList = new LinkedList<Recipient>();
+
+    for (GroupData groupData : selectedGroups.values()) {
+      List<ContactData> contactDataList = ContactAccessor.getInstance()
+          .getGroupMembership(getActivity(), groupData.id);
+
+      Log.w("GroupSelectionListActivity", "Got contacts in group: " + contactDataList.size());
+
+      for (ContactData contactData : contactDataList) {
+        for (NumberData numberData : contactData.numbers) {
+          recipientList.add(new Recipient(contactData.name, numberData.number, null));
+        }
+      }
+    }
+
+    return new Recipients(recipientList);
+  }
+
+  private void addGroup(GroupData groupData) {
+    selectedGroups.put(groupData.id, groupData);
+  }
+
+  private void removeGroup(GroupData groupData) {
+    selectedGroups.remove(groupData.id);
+  }
+
+  private class GroupSelectionListAdapter extends CursorAdapter {
+
+    public GroupSelectionListAdapter(Context context, Cursor cursor) {
+      super(context, cursor);
+    }
+
+    @Override
+    public View newView(Context context, Cursor cursor, ViewGroup parent) {
+      GroupItemView view = new GroupItemView(context);
+      bindView(view, context, cursor);
+      return view;
+    }
+
+    @Override
+    public void bindView(View view, Context context, Cursor cursor) {
+      GroupData groupData = ContactAccessor.getInstance().getGroupData(getActivity(), cursor);
+      ((GroupItemView)view).set(groupData);
+    }
+  }
+
+  private class GroupItemView extends LinearLayout {
+    private GroupData groupData;
+    private CheckedTextView name;
+
+    public GroupItemView(Context context) {
+      super(context);
+
+      LayoutInflater li = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+      li.inflate(R.layout.contact_selection_group_item, this, true);
+
+      this.name   = (CheckedTextView)findViewById(R.id.name);
+    }
+
+    public void selected() {
+      name.toggle();
+
+      if (name.isChecked()) {
+        addGroup(groupData);
+      } else {
+        removeGroup(groupData);
+      }
+    }
+
+    public void set(GroupData groupData) {
+      this.groupData = groupData;
+
+      if (selectedGroups.containsKey(groupData.id))
+        this.name.setChecked(true);
+      else
+        this.name.setChecked(false);
+
+      this.name.setText(groupData.name);
+    }
+  }
+
+//  private class GroupAggregationHandler extends Handler implements Runnable {
+//    private List<Recipient> recipientList = new LinkedList<Recipient>();
+//    private ProgressDialog progressDialog;
+//    private final Context context;
+//
+//    public GroupAggregationHandler(Context context) {
+//      this.context = context;
+//    }
+//
+//    public void run() {
+//      recipientList.clear();
+//
+//      for (GroupData groupData : selectedGroups.values()) {
+//        List<ContactData> contactDataList = ContactAccessor.getInstance()
+//            .getGroupMembership(getActivity(), groupData.id);
+//
+//          Log.w("GroupSelectionListActivity", "Got contacts in group: " + contactDataList.size());
+//
+//          for (ContactData contactData : contactDataList) {
+//            for (NumberData numberData : contactData.numbers) {
+//              recipientList.add(new Recipient(contactData.name, numberData.number, null));
+//            }
+//          }
+//      }
+//
+//      this.obtainMessage().sendToTarget();
+//    }
+//
+//    public void aggregateContacts() {
+//      progressDialog = new ProgressDialog(context);
+//      progressDialog.setTitle("Aggregating Contacts");
+//      progressDialog.setMessage("Aggregating group contacts...");
+//      progressDialog.setCancelable(false);
+//      progressDialog.setIndeterminate(true);
+//      progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
+//      progressDialog.show();
+//      Log.w("GroupSelectionListActivity", "Showing group spinner...");
+//      new Thread(this).start();
+//    }
+//
+//    @Override
+//    public void handleMessage(Message message) {
+//      progressDialog.dismiss();
+//
+//      listener.groupAggregationComplete(new Recipients(recipientList));
+//    }
+//  }
+
+  @Override
+  public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
+    return ContactAccessor.getInstance().getCursorLoaderForContactGroups(getActivity());
+  }
+
+  @Override
+  public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) {
+    ((CursorAdapter)getListAdapter()).changeCursor(cursor);
+  }
+
+  @Override
+  public void onLoaderReset(Loader<Cursor> arg0) {
+    ((CursorAdapter)getListAdapter()).changeCursor(null);
+  }
+}

src/org/thoughtcrime/securesms/ContactSelectionListFragment.java

@@ -17,28 +17,15 @@
 package org.thoughtcrime.securesms;
 
 
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-
-import org.thoughtcrime.securesms.contacts.ContactAccessor;
-import org.thoughtcrime.securesms.contacts.ContactAccessor.ContactData;
-import org.thoughtcrime.securesms.contacts.ContactAccessor.NumberData;
-import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.recipients.Recipients;
-
 import android.app.AlertDialog;
-import android.app.ListActivity;
 import android.content.Context;
 import android.content.DialogInterface;
-import android.content.Intent;
 import android.database.Cursor;
 import android.os.Bundle;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.Loader;
 import android.util.Log;
-import android.view.KeyEvent;
 import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.CheckedTextView;
@@ -47,6 +34,21 @@ import android.widget.ListView;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import com.actionbarsherlock.app.SherlockListFragment;
+import com.actionbarsherlock.view.Menu;
+import com.actionbarsherlock.view.MenuInflater;
+import com.actionbarsherlock.view.MenuItem;
+
+import org.thoughtcrime.securesms.contacts.ContactAccessor;
+import org.thoughtcrime.securesms.contacts.ContactAccessor.ContactData;
+import org.thoughtcrime.securesms.contacts.ContactAccessor.NumberData;
+import org.thoughtcrime.securesms.recipients.Recipient;
+import org.thoughtcrime.securesms.recipients.Recipients;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+
 /**
  * Activity for selecting a list of contacts.  Displayed inside
  * a ContactSelectionActivity tab frame, and ultimately called by
@@ -56,75 +58,72 @@ import android.widget.TextView;
  *
  */
 
-public class ContactSelectionListActivity extends ListActivity {
+public class ContactSelectionListFragment extends SherlockListFragment
+    implements LoaderManager.LoaderCallbacks<Cursor>
+{
 
   private final HashMap<Long, ContactData> selectedContacts = new HashMap<Long, ContactData>();
 
-  private static final int MENU_OPTION_EXIT         = 1;
-  private static final int MENU_OPTION_SELECT_ALL   = 2;
-  private static final int MENU_OPTION_UNSELECT_ALL = 3;
-	
   @Override
-  protected void onCreate(Bundle icicle) {
+  public void onActivityCreated(Bundle icicle) {
     super.onCreate(icicle);
 
-    setContentView(R.layout.contact_selection_list_activity);
     initializeResources();
-    displayContacts();
+    initializeCursor();
   }
 
   @Override
-  public boolean onPrepareOptionsMenu(Menu menu) {
-    super.onPrepareOptionsMenu(menu);
-    menu.clear();
+  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    return inflater.inflate(R.layout.contact_selection_list_activity, container, false);
+  }
 
-    menu.add(0, MENU_OPTION_EXIT, Menu.NONE, "Finished!").setIcon(android.R.drawable.ic_menu_set_as);
-    menu.add(0, MENU_OPTION_SELECT_ALL, Menu.NONE, "Select all").setIcon(android.R.drawable.ic_menu_add);
-    menu.add(0, MENU_OPTION_UNSELECT_ALL, Menu.NONE, "Unselect all").setIcon(android.R.drawable.ic_menu_revert);
-
-    return true;
+  @Override
+  public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+    inflater.inflate(R.menu.contact_selection_list, menu);
+    super.onCreateOptionsMenu(menu, inflater);
   }
 
   @Override
   public boolean onOptionsItemSelected(MenuItem item) {
-    super.onOptionsItemSelected(item);
 
     switch (item.getItemId()) {
-    case MENU_OPTION_EXIT:         saveAndExit(); return true;
-    case MENU_OPTION_SELECT_ALL:   selectAll();   return true;
-    case MENU_OPTION_UNSELECT_ALL: unselectAll(); return true;
+    case R.id.menu_select_all:   handleSelectAll();   return true;
+    case R.id.menu_unselect_all: handleUnselectAll(); return true;
     }
 
+    super.onOptionsItemSelected(item);
     return false;
   }
 
 
-  @Override
-  public boolean onKeyDown(int keyCode, KeyEvent event)  {
-    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
-      saveAndExit();
-      return true;
+  public Recipients getSelectedContacts() {
+    List<Recipient> recipientList = new LinkedList<Recipient>();
+
+    for (ContactData contactData : selectedContacts.values()) {
+      for (NumberData numberData : contactData.numbers) {
+        recipientList.add(new Recipient(contactData.name, numberData.number, null));
+      }
     }
 
-    return super.onKeyDown(keyCode, event);
+    return new Recipients(recipientList);
   }
 
-  private void unselectAll() {
+
+  private void handleUnselectAll() {
     selectedContacts.clear();
     ((CursorAdapter)getListView().getAdapter()).notifyDataSetChanged();
   }
 
-  private void selectAll() {
-    Log.w("ContactSelectionListActivity", "Selecting all...");
+  private void handleSelectAll() {
     selectedContacts.clear();
 
     Cursor cursor = null;
 
     try {
-      cursor = ContactAccessor.getInstance().getCursorForContactsWithNumbers(this);
+      cursor = ContactAccessor.getInstance().getCursorForContactsWithNumbers(getActivity());
 
       while (cursor != null && cursor.moveToNext()) {
-        ContactData contactData = ContactAccessor.getInstance().getContactData(this, cursor);
+        ContactData contactData = ContactAccessor.getInstance().getContactData(getActivity(), cursor);
 
         if      (contactData.numbers.isEmpty())   continue;
         else if (contactData.numbers.size() == 1) addSingleNumberContact(contactData);
@@ -138,24 +137,6 @@ public class ContactSelectionListActivity extends ListActivity {
     ((CursorAdapter)getListView().getAdapter()).notifyDataSetChanged();
   }
 
-  private void saveAndExit() {
-    List<Recipient> recipientList = new LinkedList<Recipient>();
-		
-    for (ContactData contactData : selectedContacts.values()) {
-      for (NumberData numberData : contactData.numbers) {
-        recipientList.add(new Recipient(contactData.name, numberData.number, null));
-      }
-    }
-		
-    Intent resultIntent = getIntent();
-    resultIntent.putExtra("recipients", new Recipients(recipientList));
-		
-    if (getParent() == null) setResult(RESULT_OK, resultIntent);
-    else                     getParent().setResult(RESULT_OK, resultIntent);
-		
-    finish();		
-  }
-	
   private void addSingleNumberContact(ContactData contactData) {
     selectedContacts.put(contactData.id, contactData);
   }
@@ -172,7 +153,7 @@ public class ContactSelectionListActivity extends ListActivity {
       options[i++] = option.type + " " + option.number;
     }
 
-    AlertDialog.Builder builder = new AlertDialog.Builder(this);
+    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
     builder.setTitle("Select for " + contactData.name);
     builder.setMultiChoiceItems(options, null, new DiscriminatorClickedListener(contactData));
     builder.setPositiveButton("Ok", new DiscriminatorFinishedListener(contactData, textView));
@@ -180,10 +161,9 @@ public class ContactSelectionListActivity extends ListActivity {
     builder.show();
   }
 
-  private void displayContacts() {
-    Cursor cursor = ContactAccessor.getInstance().getCursorForContactsWithNumbers(this);
-    startManagingCursor(cursor);
-    setListAdapter(new ContactSelectionListAdapter(this, cursor));
+  private void initializeCursor() {
+    setListAdapter(new ContactSelectionListAdapter(getActivity(), null));
+    this.getLoaderManager().initLoader(0, null, this);
   }
 
   private void initializeResources() {
@@ -191,7 +171,7 @@ public class ContactSelectionListActivity extends ListActivity {
   }
 
   @Override
-  protected void onListItemClick(ListView l, View v, int position, long id) {
+  public void onListItemClick(ListView l, View v, int position, long id) {
     ((ContactItemView)v).selected();
   }
 
@@ -327,4 +307,18 @@ public class ContactSelectionListActivity extends ListActivity {
     }
   }
 
+  @Override
+  public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
+    return ContactAccessor.getInstance().getCursorLoaderForContactsWithNumbers(getActivity());
+  }
+
+  @Override
+  public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) {
+    ((CursorAdapter)getListAdapter()).changeCursor(cursor);
+  }
+
+  @Override
+  public void onLoaderReset(Loader<Cursor> arg0) {
+    ((CursorAdapter)getListAdapter()).changeCursor(null);
+  }
 }

src/org/thoughtcrime/securesms/ContactSelectionRecentFragment.java

@@ -16,29 +16,15 @@
  */
 package org.thoughtcrime.securesms;
 
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-
-import org.thoughtcrime.securesms.contacts.ContactAccessor;
-import org.thoughtcrime.securesms.contacts.ContactAccessor.ContactData;
-import org.thoughtcrime.securesms.contacts.ContactAccessor.NumberData;
-import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.recipients.Recipients;
-import org.thoughtcrime.securesms.util.RedPhoneCallTypes;
-
-import android.app.ListActivity;
 import android.content.Context;
-import android.content.Intent;
 import android.database.Cursor;
 import android.os.Bundle;
 import android.provider.CallLog.Calls;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
 import android.text.format.DateUtils;
-import android.util.Log;
-import android.view.KeyEvent;
 import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.CheckedTextView;
@@ -48,6 +34,19 @@ import android.widget.ListView;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import com.actionbarsherlock.app.SherlockListFragment;
+
+import org.thoughtcrime.securesms.contacts.ContactAccessor;
+import org.thoughtcrime.securesms.contacts.ContactAccessor.ContactData;
+import org.thoughtcrime.securesms.contacts.ContactAccessor.NumberData;
+import org.thoughtcrime.securesms.recipients.Recipient;
+import org.thoughtcrime.securesms.recipients.Recipients;
+import org.thoughtcrime.securesms.util.RedPhoneCallTypes;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+
 /**
  * Displays a list of recently used contacts for multi-select.  Displayed
  * by the ContactSelectionActivity in a tab frame, and ultimately used by
@@ -56,51 +55,36 @@ import android.widget.TextView;
  * @author Moxie Marlinspike
  *
  */
-public class ContactSelectionRecentActivity extends ListActivity {
+public class ContactSelectionRecentFragment extends SherlockListFragment
+    implements LoaderManager.LoaderCallbacks<Cursor>
+{
 
   private final HashMap<Long, ContactData> selectedContacts = new HashMap<Long, ContactData>();
 
-  private static final int MENU_OPTION_EXIT         = 1;
-	
   @Override
-  protected void onCreate(Bundle icicle) {
-    super.onCreate(icicle);
+  public void onActivityCreated(Bundle icicle) {
+    super.onActivityCreated(icicle);
 
-    setContentView(R.layout.contact_selection_recent_activity);
     initializeResources();
-    displayContacts();
+    initializeCursor();
   }
 
   @Override
-  public boolean onPrepareOptionsMenu(Menu menu) {
-    super.onPrepareOptionsMenu(menu);
-    menu.clear();		
-    menu.add(0, MENU_OPTION_EXIT, Menu.NONE, "Finished!").setIcon(android.R.drawable.ic_menu_set_as);
-    return true;
+  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    return inflater.inflate(R.layout.contact_selection_recent_activity, container, false);
   }
 
   @Override
-  public boolean onOptionsItemSelected(MenuItem item) {
-    super.onOptionsItemSelected(item);
-		
-    switch (item.getItemId()) {
-    case MENU_OPTION_EXIT: saveAndExit(); return true;
+  public void onListItemClick(ListView l, View v, int position, long id) {
+    ((CallItemView)v).selected();
   }
 
-    return false;
+  private void initializeCursor() {
+    setListAdapter(new ContactSelectionListAdapter(getActivity(), null));
+    this.getLoaderManager().initLoader(0, null, this);
   }
 
-  @Override
-  public boolean onKeyDown(int keyCode, KeyEvent event)  {
-    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
-      saveAndExit();
-      return true;
-    }
-
-    return super.onKeyDown(keyCode, event);
-  }
-			
-  private void saveAndExit() {
+  public Recipients getSelectedContacts() {
     List<Recipient> recipientList = new LinkedList<Recipient>();
 
     for (ContactData contactData : selectedContacts.values()) {
@@ -109,13 +93,7 @@ public class ContactSelectionRecentActivity extends ListActivity {
       }
     }
 
-    Intent resultIntent = getIntent();
-    resultIntent.putExtra("recipients", new Recipients(recipientList));
-		
-    if (getParent() == null) setResult(RESULT_OK, resultIntent);
-    else                     getParent().setResult(RESULT_OK, resultIntent);
-		
-    finish();		
+    return new Recipients(recipientList);
   }
 
   private void addSingleNumberContact(ContactData contactData) {
@@ -126,22 +104,10 @@ public class ContactSelectionRecentActivity extends ListActivity {
     selectedContacts.remove(contactData.id);
   }
 
-  private void displayContacts() {
-    Cursor cursor = getContentResolver().query(Calls.CONTENT_URI, null, null, null, Calls.DEFAULT_SORT_ORDER);		
-    startManagingCursor(cursor);
-
-    setListAdapter(new ContactSelectionListAdapter(this, cursor));
-  }
-	
   private void initializeResources() {
     this.getListView().setFocusable(true);
   }
 
-  @Override
-  protected void onListItemClick(ListView l, View v, int position, long id) {
-    ((CallItemView)v).selected();
-  }
-	
   private class ContactSelectionListAdapter extends CursorAdapter {
 
     public ContactSelectionListAdapter(Context context, Cursor c) {
@@ -204,7 +170,7 @@ public class ContactSelectionRecentActivity extends ListActivity {
 
     public void set(long id, String name, String label, String number, int type, long date) {
       if( name == null ) {
-        name = ContactAccessor.getInstance().getNameForNumber(ContactSelectionRecentActivity.this, number);
+        name = ContactAccessor.getInstance().getNameForNumber(getActivity(), number);
       }
 
       this.line1.setText((name == null || name.equals("")) ? number : name);
@@ -231,4 +197,22 @@ public class ContactSelectionRecentActivity extends ListActivity {
         this.line1.setChecked(false);
     }
   }
+
+  @Override
+  public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) {
+    return new CursorLoader(getActivity(), Calls.CONTENT_URI,
+                            null, null, null,
+                            Calls.DEFAULT_SORT_ORDER);
+  }
+
+  @Override
+  public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) {
+    ((CursorAdapter)getListAdapter()).changeCursor(cursor);
+  }
+
+  @Override
+  public void onLoaderReset(Loader<Cursor> arg0) {
+    ((CursorAdapter)getListAdapter()).changeCursor(null);
+  }
+
 }

src/org/thoughtcrime/securesms/GroupSelectionListActivity.java

@@ -1,236 +0,0 @@
-/** 
- * Copyright (C) 2011 Whisper Systems
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package org.thoughtcrime.securesms;
-
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-
-import org.thoughtcrime.securesms.contacts.ContactAccessor;
-import org.thoughtcrime.securesms.contacts.ContactAccessor.ContactData;
-import org.thoughtcrime.securesms.contacts.ContactAccessor.GroupData;
-import org.thoughtcrime.securesms.contacts.ContactAccessor.NumberData;
-import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.recipients.Recipients;
-
-import android.app.ListActivity;
-import android.app.ProgressDialog;
-import android.content.Context;
-import android.content.Intent;
-import android.database.Cursor;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Message;
-import android.util.Log;
-import android.view.KeyEvent;
-import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CheckedTextView;
-import android.widget.CursorAdapter;
-import android.widget.LinearLayout;
-import android.widget.ListView;
-
-/**
- * An activity for selecting a list of "contact groups."  Displayed
- * by ContactSelectionActivity in a tabbed frame, and ultimately called
- * by ComposeMessageActivity for selecting a list of recipients.
- * 
- * @author Moxie Marlinspike
- *
- */
-public class GroupSelectionListActivity extends ListActivity {
-	
-  private final HashMap<Long, GroupData> selectedGroups = new HashMap<Long, GroupData>(); 
-
-  private static final int MENU_OPTION_EXIT = 1;
-	
-  @Override
-  protected void onCreate(Bundle icicle) {
-    super.onCreate(icicle);
-		
-    setContentView(R.layout.contact_selection_group_activity);
-    initializeResources();
-    displayGroups();
-  }
-	
-  @Override
-  public boolean onPrepareOptionsMenu(Menu menu) {
-    super.onPrepareOptionsMenu(menu);
-    menu.clear();
-    menu.add(0, MENU_OPTION_EXIT, Menu.NONE, "Finished!").setIcon(android.R.drawable.ic_menu_set_as);
-
-    return true;
-  }
-
-  @Override
-  public boolean onOptionsItemSelected(MenuItem item) {
-    super.onOptionsItemSelected(item);
-		
-    switch (item.getItemId()) {
-    case MENU_OPTION_EXIT: saveAndExit();    return true;
-    }
-		
-    return false;
-  }
-	
-  @Override
-  public boolean onKeyDown(int keyCode, KeyEvent event)  {
-    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
-      saveAndExit();
-      return true;
-    }
-
-    return super.onKeyDown(keyCode, event);
-  }
-	
-  private void saveAndExit() {
-    GroupAggregationHandler aggregator = new GroupAggregationHandler();
-    aggregator.aggregateContactsAndExit();
-  }
-	
-  private void addGroup(GroupData groupData) {
-    selectedGroups.put(groupData.id, groupData);
-  }
-	
-  private void removeGroup(GroupData groupData) {
-    selectedGroups.remove(groupData.id);
-  }
-	
-  private void displayGroups() {
-    Cursor cursor = ContactAccessor.getInstance().getCursorForContactGroups(this);
-		
-    startManagingCursor(cursor);
-    setListAdapter(new GroupSelectionListAdapter(this, cursor));
-  }
-	
-  private void initializeResources() {
-    this.getListView().setFocusable(true);
-  }
-
-  @Override
-  protected void onListItemClick(ListView l, View v, int position, long id) {
-    ((GroupItemView)v).selected();
-  }
-	
-  private class GroupSelectionListAdapter extends CursorAdapter {
-		
-    public GroupSelectionListAdapter(Context context, Cursor cursor) {
-      super(context, cursor);
-    }
-		
-    @Override
-    public View newView(Context context, Cursor cursor, ViewGroup parent) {
-      GroupItemView view = new GroupItemView(context);
-      bindView(view, context, cursor);			
-      return view;
-    }
-		
-    @Override
-    public void bindView(View view, Context context, Cursor cursor) {
-      GroupData groupData = ContactAccessor.getInstance().getGroupData(GroupSelectionListActivity.this, cursor);
-      ((GroupItemView)view).set(groupData);
-    }
-  }
-	
-  private class GroupItemView extends LinearLayout {
-    private GroupData groupData;
-    private CheckedTextView name;
-
-    public GroupItemView(Context context) {
-      super(context);
-
-      LayoutInflater li = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-      li.inflate(R.layout.contact_selection_group_item, this, true);
-
-      this.name   = (CheckedTextView)findViewById(R.id.name);
-    }
-
-    public void selected() {
-      name.toggle();
-			
-      if (name.isChecked()) {
-        addGroup(groupData);
-      } else {
-        removeGroup(groupData);
-      }			
-    }
-		
-    public void set(GroupData groupData) {
-      this.groupData = groupData;
-			
-      if (selectedGroups.containsKey(groupData.id))
-        this.name.setChecked(true);
-      else
-        this.name.setChecked(false);
-			
-      this.name.setText(groupData.name);
-    }
-  }
-	
-  private class GroupAggregationHandler extends Handler implements Runnable {
-    private List<Recipient> recipientList = new LinkedList<Recipient>();
-    private ProgressDialog progressDialog;
-		
-    public GroupAggregationHandler() {}
-		
-    public void run() {
-      recipientList.clear();
-			
-      for (GroupData groupData : selectedGroups.values()) {			
-        List<ContactData> contactDataList = ContactAccessor.getInstance().getGroupMembership(GroupSelectionListActivity.this, groupData.id);
-				
-        	Log.w("GroupSelectionListActivity", "Got contacts in group: " + contactDataList.size());
-				
-        	for (ContactData contactData : contactDataList) {
-        	  for (NumberData numberData : contactData.numbers) {
-        	    recipientList.add(new Recipient(contactData.name, numberData.number, null));
-        	  }
-        	}
-      }
-
-      this.obtainMessage().sendToTarget();			
-    }
-		
-    public void aggregateContactsAndExit() {
-      progressDialog = new ProgressDialog(GroupSelectionListActivity.this);
-      progressDialog.setTitle("Aggregating Contacts");
-      progressDialog.setMessage("Aggregating group contacts...");
-      progressDialog.setCancelable(false);
-      progressDialog.setIndeterminate(true);
-      progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
-      progressDialog.show();
-      Log.w("GroupSelectionListActivity", "Showing group spinner...");
-      new Thread(this).start();
-    }
-				
-    @Override
-    public void handleMessage(Message message) {
-      progressDialog.dismiss();
-			
-      Intent resultIntent = getIntent();
-      resultIntent.putExtra("recipients", new Recipients(recipientList));
-			
-      if (getParent() == null) setResult(RESULT_OK, resultIntent);
-      else                     getParent().setResult(RESULT_OK, resultIntent);
-			
-      finish();		
-    }
-  }
-}

src/org/thoughtcrime/securesms/contacts/ContactAccessor.java

@@ -16,19 +16,19 @@
  */
 package org.thoughtcrime.securesms.contacts;
 
-import java.util.LinkedList;
-import java.util.List;
-
-import org.thoughtcrime.securesms.crypto.IdentityKey;
-
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
-import android.os.Build;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.support.v4.content.CursorLoader;
+
+import org.thoughtcrime.securesms.crypto.IdentityKey;
+
+import java.util.LinkedList;
+import java.util.List;
 
 /**
  * Android changed their contacts API pretty heavily between
@@ -44,29 +44,9 @@ public abstract class ContactAccessor {
   public static final int UNIQUE_ID    = 0;
   public static final int DISPLAY_NAME = 1;
 
-  private static ContactAccessor sInstance;
+  private static final ContactAccessor sInstance = new ContactAccessorNewApi();
 
   public static synchronized ContactAccessor getInstance() {
-    if (sInstance == null) {
-      String className;
-
-      if (Integer.parseInt(Build.VERSION.SDK) <= Build.VERSION_CODES.DONUT) 
-        className = "ContactAccessorOldApi";
-      else 
-        className = "ContactAccessorNewApi";
-            
-      try {
-        Class<? extends ContactAccessor> clazz =                                    	
-            Class.forName("org.thoughtcrime.securesms.contacts." + className )
-            .asSubclass(ContactAccessor.class);
-                
-        sInstance = clazz.newInstance();
-                
-      } catch (Exception e) {
-        throw new AssertionError(e);
-      }
-    }
-        
     return sInstance;
   }
 
@@ -78,6 +58,8 @@ public abstract class ContactAccessor {
   public abstract List<String>           getNumbersForThreadSearchFilter(String constraint, ContentResolver contentResolver);
   public abstract List<ContactData>      getGroupMembership(Context context, long groupId);
   public abstract Cursor                 getCursorForContactGroups(Context context);
+  public abstract CursorLoader           getCursorLoaderForContactGroups(Context context);
+  public abstract CursorLoader           getCursorLoaderForContactsWithNumbers(Context context);
   public abstract Cursor                 getCursorForContactsWithNumbers(Context context);
   public abstract GroupData              getGroupData(Context context, Cursor cursor);
   public abstract ContactData            getContactData(Context context, Cursor cursor);

src/org/thoughtcrime/securesms/contacts/ContactAccessorNewApi.java

@@ -16,15 +16,6 @@
  */
 package org.thoughtcrime.securesms.contacts;
 
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.LinkedList;
-import java.util.List;
-
-import org.thoughtcrime.securesms.crypto.IdentityKey;
-import org.thoughtcrime.securesms.crypto.InvalidKeyException;
-import org.thoughtcrime.securesms.util.Base64;
-
 import android.content.ContentResolver;
 import android.content.ContentValues;
 import android.content.Context;
@@ -39,9 +30,19 @@ import android.provider.ContactsContract.Contacts;
 import android.provider.ContactsContract.Data;
 import android.provider.ContactsContract.PhoneLookup;
 import android.provider.ContactsContract.RawContacts;
+import android.support.v4.content.CursorLoader;
 import android.telephony.PhoneNumberUtils;
 import android.util.Log;
 
+import org.thoughtcrime.securesms.crypto.IdentityKey;
+import org.thoughtcrime.securesms.crypto.InvalidKeyException;
+import org.thoughtcrime.securesms.util.Base64;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
 /**
  * Interface into the Android 2.x+ contacts operations.
  *
@@ -302,9 +303,21 @@ public class ContactAccessorNewApi extends ContactAccessor {
   }
 
   @Override
-  public Cursor getCursorForContactsWithNumbers(Context context) {
+  public CursorLoader getCursorLoaderForContactsWithNumbers(Context context) {
+    Uri uri          = ContactsContract.Contacts.CONTENT_URI;
     String selection = ContactsContract.Contacts.HAS_PHONE_NUMBER + " = 1";
-    return context.getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, selection, null, ContactsContract.Contacts.DISPLAY_NAME + " ASC");
+
+    return new CursorLoader(context, uri, null, selection, null,
+                            ContactsContract.Contacts.DISPLAY_NAME + " ASC");
+  }
+
+  @Override
+  public Cursor getCursorForContactsWithNumbers(Context context) {
+    Uri uri = ContactsContract.Contacts.CONTENT_URI;
+    String selection = ContactsContract.Contacts.HAS_PHONE_NUMBER + " = 1";
+
+    return context.getContentResolver().query(uri, null, selection, null,
+                                              ContactsContract.Contacts.DISPLAY_NAME + " ASC");
   }
 
   private ContactData getContactData(Context context, String displayName, long id) {
@@ -345,6 +358,12 @@ public class ContactAccessorNewApi extends ContactAccessor {
     return context.getContentResolver().query(ContactsContract.Groups.CONTENT_URI, null, null, null, ContactsContract.Groups.TITLE + " ASC");
   }
 
+  @Override
+  public CursorLoader getCursorLoaderForContactGroups(Context context) {
+    return new CursorLoader(context, ContactsContract.Groups.CONTENT_URI,
+                            null, null, null, ContactsContract.Groups.TITLE + " ASC");
+  }
+
   @Override
   public List<ContactData> getGroupMembership(Context context, long groupId) {
     LinkedList<ContactData> contacts = new LinkedList<ContactData>();

src/org/thoughtcrime/securesms/contacts/ContactAccessorOldApi.java

@@ -1,328 +0,0 @@
-/** 
- * Copyright (C) 2011 Whisper Systems
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package org.thoughtcrime.securesms.contacts;
-
-import java.util.ArrayList;
-import java.util.LinkedList;
-import java.util.List;
-
-import org.thoughtcrime.securesms.crypto.IdentityKey;
-
-import android.content.ContentResolver;
-import android.content.Context;
-import android.content.Intent;
-import android.database.Cursor;
-import android.database.DatabaseUtils;
-import android.database.MergeCursor;
-import android.net.Uri;
-import android.provider.Contacts;
-import android.provider.Contacts.GroupMembership;
-import android.provider.Contacts.People;
-import android.provider.Contacts.Phones;
-import android.telephony.PhoneNumberUtils;
-import android.util.Log;
-import android.widget.Toast;
-
-
-/**
- * A contact interface into the 1.x API for older clients.
- * 
- * @author Stuart Anderson
- */
-
-public class ContactAccessorOldApi extends ContactAccessor {
-
-  @SuppressWarnings("deprecation")
-    private static final String SORT_ORDER = Phones.NAME + "," + Phones.TYPE;
-  @SuppressWarnings("deprecation")
-    private static final String[] PROJECTION_PHONE = {
-    Phones._ID,                  // 0
-    Phones.PERSON_ID,           // 1
-    Phones.TYPE,                 // 2
-    Phones.NUMBER,               // 3
-    Phones.LABEL,                // 4
-    Phones.DISPLAY_NAME,         // 5
-  };
-
-  @SuppressWarnings("deprecation")
-  @Override
-  public Cursor getCursorForRecipientFilter(CharSequence constraint,
-					      ContentResolver mContentResolver) {
-    String phone = "";
-    String wherePhone = null;
-        
-    String cons = null;
-    if (constraint != null) {
-      cons = constraint.toString();
-
-      if (RecipientsAdapter.usefulAsDigits(cons)) {
-        phone = PhoneNumberUtils.convertKeypadLettersToDigits(cons);
-        if (phone.equals(cons)) {
-          phone = "";
-        } else {
-          phone = phone.trim();
-        }
-      }
-    }
-          
-    String filter = DatabaseUtils.sqlEscapeString(cons + '%');
-    String filterLastName = DatabaseUtils.sqlEscapeString("% " + cons + '%');
-
-    StringBuilder s = new StringBuilder();
-    s.append("((name LIKE ");
-    s.append(filter);
-    s.append(") OR (name LIKE ");
-    s.append(filterLastName);
-    s.append(") OR (REPLACE(REPLACE(REPLACE(REPLACE(number, ' ', ''), '(', ''), ')', ''), '-', '') LIKE ");
-    s.append(filter);
-    s.append("))");
-  
-    wherePhone = s.toString();
-
-    Cursor phoneCursor = mContentResolver.query(Phones.CONTENT_URI,
-						PROJECTION_PHONE,
-						wherePhone,
-						null,
-						SORT_ORDER);
- 
-    //dumpCursor(phoneCursor);
-
-
-    if (phone.length() > 0) {
-      ArrayList result = new ArrayList();
-      result.add(Integer.valueOf(-1));                    // ID
-      result.add(Long.valueOf(-1));                       // CONTACT_ID
-      result.add(Integer.valueOf(Phones.TYPE_CUSTOM));     // TYPE
-      result.add(phone);                                  // NUMBER
-
-      /*
-       * The "\u00A0" keeps Phone.getDisplayLabel() from deciding
-       * to display the default label ("Home") next to the transformation
-       * of the letters into numbers.
-       */
-      result.add("\u00A0");                               // LABEL
-      result.add(cons);                                   // NAME
-
-      ArrayList<ArrayList> wrap = new ArrayList<ArrayList>();
-      wrap.add(result);
-
-      ArrayListCursor translated = new ArrayListCursor(PROJECTION_PHONE, wrap);
-
-      return new MergeCursor(new Cursor[] { translated, phoneCursor });
-    } else {
-      return phoneCursor;
-    }
-       
-  }
-	
-  @SuppressWarnings("deprecation")
-  @Override
-  public CharSequence phoneTypeToString(Context mContext, int type,
-					  CharSequence label) {
-    return Phones.getDisplayLabel(mContext, type, label);
-  }
-	
-  public static void dumpCursor( Cursor c ) {
-    c.moveToFirst();
-    Log.d( "DC", "Begin:" );
-    for( int i=0; i < c.getCount(); i++ ) {
-      String rowStr = "";	
-      for( int j=0; j < c.getColumnCount(); j++ ) {
-        rowStr = rowStr + c.getColumnName(j) + "=" + c.getString(j) +" ";
-      }
-      Log.d( "DC", rowStr + "\n" );
-      c.moveToNext();		
-    }
-  }
-
-  @Override
-  public Intent getIntentForContactSelection() {
-    return new Intent(Intent.ACTION_PICK, People.CONTENT_URI);
-  }
-
-  @Override
-  public void insertIdentityKey(Context context, Uri uri, IdentityKey identityKey) {
-    Toast.makeText(context, "Sorry, reading and writing identity keys to the contacts database is not supported on Android 1.X", Toast.LENGTH_LONG).show();
-  }
-
-  @Override
-  public IdentityKey importIdentityKey(Context context, Uri uri) {
-    Toast.makeText(context, "Sorry, reading and writing identity keys to the contacts database is not supported on Android 1.X", Toast.LENGTH_LONG).show();
-    return null;
-  }
-
-  @Override
-  public String getNameFromContact(Context context, Uri uri) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public List<String> getNumbersForThreadSearchFilter(String constraint, ContentResolver contentResolver) {
-    LinkedList<String> numberList = new LinkedList<String>();
-    Cursor cursor                 = null;
-		
-    try {
-      cursor = contentResolver.query(Uri.withAppendedPath(Contacts.People.CONTENT_FILTER_URI, Uri.encode(constraint)), 
-				     null, null, null, null);
-		
-      while (cursor != null && cursor.moveToNext()) {
-        String number = cursor.getString(cursor.getColumnIndexOrThrow(Contacts.Phones.NUMBER));
-        if (number != null)
-          numberList.add(number);
-      }
-    } finally {
-      if (cursor != null)
-        cursor.close();
-    }
-		
-    return numberList;
-  }
-
-  @Override
-  public NameAndNumber getNameAndNumberFromContact(Context context, Uri uri) {
-    Cursor cursor        = null;
-    NameAndNumber result = new NameAndNumber();
-		
-    try {
-      cursor = context.getContentResolver().query(uri, null, null, null, null);
-			
-      if (cursor != null && cursor.moveToFirst()) {
-        result.name   = cursor.getString(cursor.getColumnIndexOrThrow(People.NAME));
-        result.number = cursor.getString(cursor.getColumnIndexOrThrow(People.NUMBER));
-				
-        return result;
-      }
-    } finally {
-      if (cursor != null)
-	cursor.close();
-    }
-
-    return null;
-  }
-
-  @Override
-  public Cursor getCursorForContactsWithNumbers(Context context) {
-    return context.getContentResolver().query(People.CONTENT_URI,new String[]{People._ID,People.DISPLAY_NAME},
-					      People.NUMBER + " NOT NULL", null, "UPPER( " + People.DISPLAY_NAME + " ) ASC");
-  }
-	
-  @Override
-  public ContactData getContactData(Context context, Cursor cursor) {
-    ContactData contactData = new ContactData();
-    contactData.id          = cursor.getLong(cursor.getColumnIndexOrThrow(People._ID));
-    contactData.name        = cursor.getString(cursor.getColumnIndexOrThrow(People.DISPLAY_NAME));
-    contactData.numbers     = getNumberDataForPersonId(context, contactData.id);
-		
-    return contactData;
-  }
-
-  @Override
-  public Cursor getCursorForContactGroups(Context context) {
-    return context.getContentResolver().query(Contacts.Groups.CONTENT_URI, null, null, null, Contacts.Groups.NAME + " ASC");
-  }
-
-  private LinkedList<NumberData> getNumberDataForPersonId(Context context, long personId) {
-    LinkedList<NumberData> numbers = new LinkedList<NumberData>();
-    Cursor numberCursor            = context.getContentResolver().query(Phones.CONTENT_URI, null, 
-									Phones.PERSON_ID + " = ?", 
-									new String[] {personId+""}, null);
-    try {
-      while (numberCursor != null && numberCursor.moveToNext()) {
-	numbers.add(new NumberData(Phones.getDisplayLabel(context, numberCursor.getInt(numberCursor.getColumnIndexOrThrow(Phones.TYPE)), "").toString(), 
-				   numberCursor.getString(numberCursor.getColumnIndexOrThrow(Phones.NUMBER))));								
-      }
-    } finally {
-      if (numberCursor != null)
-	numberCursor.close();
-    }
-		
-    return numbers;
-  }
-	
-  private ContactData getContactDataFromGroupMembership(Context context, Cursor cursor) {
-    ContactData contactData = new ContactData();
-    contactData.id          = cursor.getLong(cursor.getColumnIndexOrThrow(GroupMembership.PERSON_ID));
-		
-    Cursor personCursor     = context.getContentResolver().query(Uri.withAppendedPath(People.CONTENT_URI, contactData.id+""), null, null, null, null);
-		
-    try {
-      if (personCursor == null || !personCursor.moveToFirst())
-        throw new AssertionError("Non-existent user in group?");
-			
-      contactData.name        = personCursor.getString(personCursor.getColumnIndexOrThrow(People.DISPLAY_NAME));
-      contactData.numbers     = getNumberDataForPersonId(context, contactData.id);						
-
-      return contactData;
-			
-    } finally {
-      if (personCursor != null)
-	personCursor.close();
-    }
-  }
-	
-  @Override
-    public List<ContactData> getGroupMembership(Context context, long groupId) {
-    LinkedList<ContactData>	contacts = new LinkedList<ContactData>();
-    Cursor groupMembershipCursor     = context.getContentResolver().query(Contacts.GroupMembership.CONTENT_URI, null, 
-									  GroupMembership.GROUP_ID + " = ?", 
-									  new String[] {groupId+""}, null);
-
-    try {
-      while (groupMembershipCursor != null && groupMembershipCursor.moveToNext()) {
-	contacts.add(getContactDataFromGroupMembership(context, groupMembershipCursor));
-      }
-    } finally {
-      if (groupMembershipCursor != null)
-	groupMembershipCursor.close();
-    }
-		
-    return contacts;
-  }
-	
-  @Override
-    public GroupData getGroupData(Context context, Cursor cursor) {
-    GroupData groupData = new GroupData();
-    groupData.id        = cursor.getLong(cursor.getColumnIndexOrThrow(Contacts.Groups._ID));
-    groupData.name      = cursor.getString(cursor.getColumnIndexOrThrow(Contacts.Groups.NAME));
-		
-    return groupData;
-  }
-
-  @Override
-    public String getNameForNumber(Context context, String number) {
-    Cursor cursor = context.getContentResolver().query(Contacts.Phones.CONTENT_URI, null, 
-						       Phones.NUMBER + " = ?", 
-						       new String[] {number}, null);
-
-    try {
-      if (cursor != null && cursor.moveToFirst())
-	return cursor.getString(cursor.getColumnIndexOrThrow(Contacts.Phones.DISPLAY_NAME));
-    } finally {
-      if (cursor != null)
-	cursor.close();
-    }
-		
-    return null;
-  }
-
-  @Override
-    public Uri getContactsUri() {
-    return Contacts.People.CONTENT_URI;
-  }
-
-}

src/org/thoughtcrime/securesms/recipients/Recipients.java

@@ -16,14 +16,14 @@
  */
 package org.thoughtcrime.securesms.recipients;
 
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
+import android.os.Parcel;
+import android.os.Parcelable;
 
 import org.thoughtcrime.securesms.util.NumberUtil;
 
-import android.os.Parcel;
-import android.os.Parcelable;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
 
 public class Recipients implements Parcelable {
 
@@ -49,6 +49,10 @@ public class Recipients implements Parcelable {
     in.readTypedList(recipients, Recipient.CREATOR);
   }
 
+  public void append(Recipients recipients) {
+    this.recipients.addAll(recipients.getRecipientsList());
+  }
+
   public Recipients truncateToSingleRecipient() {
     assert(!this.recipients.isEmpty());
     this.recipients = this.recipients.subList(0, 1);