Main activity, minor changes

* Main activity with description and links
* Decrease MAX_UPDATES_BEFORE_COMMIT to 25 (may fix #25)

AndroidManifest.xml

@@ -22,7 +22,7 @@
         android:label="@string/app_name"
         android:theme="@style/AppTheme" >
         <service
-            android:name=".syncadapter.AccountAuthenticatorService"
+            android:name="at.bitfire.davdroid.syncadapter.AccountAuthenticatorService"
             android:exported="false" >
             <intent-filter>
                 <action android:name="android.accounts.AccountAuthenticator" />
@@ -33,7 +33,7 @@
                 android:resource="@xml/account_authenticator" />
         </service>
         <service
-            android:name=".syncadapter.ContactsSyncAdapterService"
+            android:name="at.bitfire.davdroid.syncadapter.ContactsSyncAdapterService"
             android:exported="true"
             android:process=":sync" >
             <intent-filter>
@@ -48,7 +48,7 @@
                 android:resource="@xml/contacts" />
         </service>
         <service
-            android:name=".syncadapter.CalendarsSyncAdapterService"
+            android:name="at.bitfire.davdroid.syncadapter.CalendarsSyncAdapterService"
             android:exported="true"
             android:process=":sync" >
             <intent-filter>
@@ -61,7 +61,15 @@
         </service>
 
         <activity
-            android:name=".syncadapter.AddAccountActivity"
+            android:name="at.bitfire.davdroid.MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name="at.bitfire.davdroid.syncadapter.AddAccountActivity"
             android:excludeFromRecents="true" >
         </activity>
     </application>

res/layout/activity_main.xml

@@ -0,0 +1,15 @@
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity" >
+
+    <TextView
+        android:id="@+id/text_info"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:padding="20dp"
+        android:linksClickable="true"
+        android:textAppearance="?android:attr/textAppearanceMedium" />
+
+</ScrollView>

res/menu/main_activity.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android" >
+    <item android:onClick="addAccount" android:title="@string/add_account" android:showAsAction="always" android:icon="@drawable/ic_action_new_account"></item>
+    <item android:onClick="showSyncSettings" android:title="@string/show_sync_settings" android:showAsAction="always" android:icon="@drawable/show_sync_settings"></item>
+    <item android:onClick="showWebsite" android:title="@string/show_website" android:showAsAction="always" android:icon="@drawable/view_website"></item>
+</menu>

res/values-de/strings.xml

@@ -25,4 +25,56 @@
     <string name="select_address_book">Ein oder kein Adressbuch auswählen (nochmal berühren, um abzuwählen):</string>
     <string name="select_calendars">Kalender zur Synchronisation auswählen:</string>
     <string name="auth_preemptive">Präemptive Authentifizierung (empfohlen, aber nicht kompatibel mit Digest-Auth.)</string>
+    
+	<string name="davdroid_help">Hilfe zu DAVdroid</string>
+	<string name="show_sync_settings">Sync-Konten anzeigen</string>
+    <string name="show_website">DAVdroid-Website</string>
+    <string name="html_info"><![CDATA[
+       <h1>Willkommen bei DAVdroid!</h1>
+       
+       <p>DAVdroid ist ein Android 4+-CalDAV/CardDAV-Sync-Adapter. Um ihn zu verwenden, müssen Sie ein DAVdroid-Konto
+       für Ihren Server hinzufügen. Die Kontakte/Termine werden dann automatisch in beide Richtungen synchronisiert.</p>
+       
+       <p>Wenn Sie <a href="https://play.google.com/store/apps/details?id=at.bitfire.davdroid">DAVdroid über den
+       Play-Store bezogen haben</a> und Android 4.1 oder Samsung-Geräte (wie zB das Galaxy Note, Note 10.1, S2, S3, S4, …)
+       benutzen, müssen Sie möglicherweise den
+       <a href="https://play.google.com/store/apps/details?id=at.bitfire.davdroid.jbworkaround">DAVdroid JB Workaround</a>
+       installieren, um Datenverlust beim Neustart zu vermeiden (dies ist ein Android-Bug).</p>
+       
+       <p>Weitere Informationen erhalten Sie auf der <a href="http://davdroid.bitfire.at?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">DAVdroid-Homepage</a>.
+       Dort finden Sie auch eine <a href="http://davdroid.bitfire.at/configuration?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">Anleitung zum Einrichten</a>
+       DAVdroid ist auf den Schutz der Privatsphäre ausgelegt (siehe <a href="http://davdroid.bitfire.at/privacy?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">Datenschutzrichtlinie</a>).</p>
+       
+       <p><b>Bei Problemen lesen Sie bitte die <a href="http://davdroid.bitfire.at/configuration?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">häufig gestellten Fragen</a>.
+       Im Falle eines Fehlers, der eindeutig durch DAVdroid verursacht wird, berichten Sie diesen wenn möglich auf
+       <a href="https://github.com/rfc2822/davdroid">Github Issues</a>, anstatt uns direkt zu kontaktieren oder die App
+       schlecht zu bewerten.</b></p>
+       
+	   <h1>Open-Source</h1>
+	   <p>DAVdroid ist von Anfang an als Open-Source-Projekt ausgelegt. Der Quellcode kann jederzeit selbst kompiliert und
+	   die App unter den Bedingungen der GPLv3 verwendet werden. Der Quellcode ist
+	   <a href="https://github.com/rfc2822/davdroid">auf Github verfügbar</a>, die App kann auch
+	   <a href="https://f-droid.org/app/at.bitfire.davdroid">über F-droid bezogen werden</a>.</p>
+	   
+	   <p>Es ist jedoch viel Arbeit, die App zu entwickeln und besser zu machen. Daher haben wir uns entschlossen, sie
+	   auch gegen eine kleine Gebühr in die Stores (Google Play,
+	   <a href="http://apps.samsung.com/earth/topApps/topAppsDetail.as?productId=000000665458">Samsung Store</a>)
+	   zu stellen. Wenn Sie das Projekt unterstützen wollen, können Sie
+	   <a href="http://davdroid.bitfire.at/donate?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">für DAVdroid spenden</a> oder die App kaufen.</p>
+	   
+	   <h1>Lizenz</h1>
+	   <p>Copyright (c) 2013 Richard Hirner (<a href="http://www.bitfire.at">bitfire web engineering</a>), alle Rechte
+	   vorbehalten. Dieses Programm ist freie Software. Sie können es unter den Bedingungen der <a href="http://www.gnu.org/licenses/gpl.html">GNU
+	   General Public License Version 3</a>, wie von der Free Software Foundation veröffentlicht, weitergeben und/oder modifizieren.
+	   Sofern Google Play oder Samsung Store andere Bedingungen benötigen, gelten für über den jeweiligen Markt heruntergeladene
+	   Apps diese Bedingungen.</p>
+	   
+	   <h2>Benutzte Bibliotheken</h2>
+	   <p>
+	   	* <a href="http://ical4j.sourceforge.net/">iCal4j<a> (<a href="http://sourceforge.net/p/ical4j/ical4j/ci/default/tree/LICENSE">New BSD License</a>)<br/>
+	   	* <a href="http://wiki.modularity.net.au/ical4j/index.php?title=VCard">iCal4j-vcard</a> (<a href="http://sourceforge.net/p/ical4j/ical4j/ci/default/tree/LICENSE">New BSD License</a>)<br/>
+	   	* <a href="http://simple.sourceforge.net/">Simple XML Serialization</a> (<a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>)<br/>
+	   	* <a href="http://projectlombok.org/">Project Lombok</a> (<a href="http://opensource.org/licenses/mit-license.php">MIT License</a>)</p>
+    ]]></string>
+    
 </resources>

res/values/strings.xml

@@ -3,10 +3,12 @@
 
     <string name="app_name">DAVdroid</string>
     <string name="menu_settings">Settings</string>
+
     <string-array name="http_protocols">
         <item>http://</item>
         <item>https://</item>
     </string-array>
+
     <string name="http_warning">"If you don't use encryption (HTTPS), other people may easily intercept your login details, contacts and events."</string>
     <string name="user_name">User name:</string>
     <string name="password">Password:</string>
@@ -32,4 +34,54 @@
     <string name="select_calendars">Select your calendars:</string>
     <string name="auth_preemptive">Preemptive authentication (recommended, but incompatible with Digest auth)</string>
     
+    <string name="davdroid_help">DAVdroid Help</string>
+    <string name="show_sync_settings">Manage sync accounts</string>
+    <string name="show_website">DAVdroid Web site</string>
+    <string name="html_info"><![CDATA[
+       <h1>Welcome to DAVdroid!</h1>
+       
+       <p>DAVdroid is an Android 4+ sync adapter for CalDAV/CardDAV. To use it, just add a DAVdroid account
+       for your CalDAV/CardDAV server and your contacts/events will be synchronized in both directions.</p>
+       
+       <p>If you have bought <a href="https://play.google.com/store/apps/details?id=at.bitfire.davdroid">DAVdroid via
+       Play Store</a> and use Android 4.1 or Samsung devices (for instance, Galaxy Note, Note 10.1, S2, S3, S4, …)
+       you may have to install the
+       <a href="https://play.google.com/store/apps/details?id=at.bitfire.davdroid.jbworkaround">DAVdroid JB Workaround</a>
+       to prevent data-loss on reboot (it\'s an Android bug).</p>
+       
+       <p>For more information, please see the <a href="http://davdroid.bitfire.at?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">DAVdroid homepage</a>.
+       There\'s a <a href="http://davdroid.bitfire.at/configuration?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">Setup guide</a>, too. DAVdroid respects
+       your privacy, see our <a href="http://davdroid.bitfire.at/privacy?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">Privacy Policy</a>.</p>
+       
+       <p><b>In case of problems, please read the <a href="http://davdroid.bitfire.at/configuration?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">FAQ</a> first.
+       If you encounter a bug that is clearly related to DAVdroid, enter it on
+       <a href="https://github.com/rfc2822/davdroid">Github issues</a> instead of contacting us directly or giving a poor
+       rating for the app.</b></p>
+              
+	   <h1>Open-source</h1>
+	   <p>DAVdroid is designed to be an open-source project from the very first beginning. It is always possible to compile the
+	   app yourself and use it for free without any obligations. The source code is
+	   <a href="https://github.com/rfc2822/davdroid">available on Github</a>, and you can
+	   <a href="https://f-droid.org/app/at.bitfire.davdroid">download the app on F-droid</a>.</p>
+	   
+	   <p>However, it was much work to create this app, so we have decided to put it into the stores (Google Play,
+	   <a href="http://apps.samsung.com/earth/topApps/topAppsDetail.as?productId=000000665458">Samsung Store</a>) for a small fee.
+	   If you want to support this project, please consider <a href="http://davdroid.bitfire.at/donate?pk_campaign=davdroid-app&amp;pk_kwd=main-activity">donating to DAVdroid</a>
+	   or purchasing it.</p>
+	   
+	   <h1>License</h1>
+	   <p>Copyright (c) 2013 Richard Hirner (<a href="http://www.bitfire.at">bitfire web engineering</a>). All rights reserved.
+	   This program and the accompanying materials are made available under the terms of the GNU Public License v3.0 which
+	   accompanies this distribution, and is available at <a
+	   href="http://www.gnu.org/licenses/gpl.html">http://www.gnu.org/licenses/gpl.html</a>. As far as Google Play or Samsung
+	   Store Store require other terms, the respective terms apply for versions that are downloaded via these services.</p>
+	   
+	   <h2>Used third-party libraries</h2>
+	   <p>
+	   	* <a href="http://ical4j.sourceforge.net/">iCal4j<a> (<a href="http://sourceforge.net/p/ical4j/ical4j/ci/default/tree/LICENSE">New BSD License</a>)<br/>
+	   	* <a href="http://wiki.modularity.net.au/ical4j/index.php?title=VCard">iCal4j-vcard</a> (<a href="http://sourceforge.net/p/ical4j/ical4j/ci/default/tree/LICENSE">New BSD License</a>)<br/>
+	   	* <a href="http://simple.sourceforge.net/">Simple XML Serialization</a> (<a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>)<br/>
+	   	* <a href="http://projectlombok.org/">Project Lombok</a> (<a href="http://opensource.org/licenses/mit-license.php">MIT License</a>)</p>
+    ]]></string>
+
 </resources>

res/xml/account_prefs.xml

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
 
-    <Preference android:title="DAVdroid Web site" >
+    <Preference android:title="@string/davdroid_help" >
         <intent
-            android:action="android.intent.action.VIEW"
-            android:data="http://davdroid.bitfire.at/?pk_campaign=davdroid-app&amp;pk_kwd=accounts" />
+            android:targetPackage="at.bitfire.davdroid"
+            android:targetClass="at.bitfire.davdroid.MainActivity" />
     </Preference>
 
 </PreferenceScreen>

src/at/bitfire/davdroid/MainActivity.java

@@ -0,0 +1,51 @@
+package at.bitfire.davdroid;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.text.Html;
+import android.text.method.LinkMovementMethod;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.widget.TextView;
+
+public class MainActivity extends Activity {
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		
+		setContentView(R.layout.activity_main);
+		
+		TextView tv = (TextView)findViewById(R.id.text_info);
+		tv.setText(Html.fromHtml(getString(R.string.html_info)));
+	    tv.setMovementMethod(LinkMovementMethod.getInstance());
+	}
+
+	@Override
+	public boolean onCreateOptionsMenu(Menu menu) {
+		MenuInflater inflater = getMenuInflater();
+	    inflater.inflate(R.menu.main_activity, menu);
+	    return true;
+	}
+
+	
+	public void addAccount(MenuItem item) {
+		Intent intent = new Intent(Settings.ACTION_ADD_ACCOUNT);
+		startActivity(intent);
+	}
+
+	public void showSyncSettings(MenuItem item) {
+		Intent intent = new Intent(Settings.ACTION_SYNC_SETTINGS);
+		startActivity(intent);
+	}
+
+	public void showWebsite(MenuItem item) {
+		Intent intent = new Intent(Intent.ACTION_VIEW);
+		intent.setData(Uri.parse(Constants.WEB_URL_HELP + "&pk_kwd=main-activity"));
+		startActivity(intent);
+	}
+}

src/at/bitfire/davdroid/resource/LocalCalendar.java

@@ -338,7 +338,7 @@ public class LocalCalendar extends LocalCollection<Event> {
 			where = entryColumnRemoteName() + " IS NOT NULL";
 		
 		Builder builder = ContentProviderOperation.newDelete(entriesURI())
-				.withSelection(Events.CALENDAR_ID + "=? AND (" + where + ")", new String[] { String.valueOf(id) });
+				.withSelection(entryColumnParentID() + "=? AND (" + where + ")", new String[] { String.valueOf(id) });
 		pendingOperations.add(builder
 				.withYieldAllowed(true)
 				.build());

src/at/bitfire/davdroid/resource/LocalCollection.java

@@ -166,13 +166,12 @@ public abstract class LocalCollection<ResourceType extends Resource> {
 	}
 
 	public void commit() throws RemoteException, OperationApplicationException {
+		if (!pendingOperations.isEmpty()) {
 			Log.i(TAG, "Committing " + pendingOperations.size() + " operations");
-		
-		if (!pendingOperations.isEmpty())
 			providerClient.applyBatch(pendingOperations);
-		
 			pendingOperations.clear();
 		}
+	}
 
 	
 	// helpers

src/at/bitfire/davdroid/syncadapter/SyncManager.java

@@ -28,7 +28,7 @@ import at.bitfire.davdroid.webdav.PreconditionFailedException;
 
 public class SyncManager {
 	private static final String TAG = "davdroid.SyncManager";
-	private static final int MAX_UPDATES_BEFORE_COMMIT = 100;
+	private static final int MAX_UPDATES_BEFORE_COMMIT = 25;
 	
 	protected Account account;
 	protected AccountManager accountManager;