Initial commit

A.k.a. "I should have done this some time ago"

.gitignore

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+# Created by https://www.gitignore.io
+
+### Android ###
+# Built application files
+*.apk
+*.ap_
+
+# Files for the Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+
+# Gradle files
+.gradle/
+build/
+/*/build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+### Android Patch ###
+gen-external-apklibs
+
+
+### Gradle ###
+.gradle
+build/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar
+
+
+### Intellij ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm
+
+*.iml
+
+## Directory-based project format:
+.idea/
+# if you remove the above rule, at least ignore the following:
+
+# User-specific stuff:
+# .idea/workspace.xml
+# .idea/tasks.xml
+# .idea/dictionaries
+
+# Sensitive or high-churn files:
+# .idea/dataSources.ids
+# .idea/dataSources.xml
+# .idea/sqlDataSources.xml
+# .idea/dynamic.xml
+# .idea/uiDesigner.xml
+
+# Gradle:
+# .idea/gradle.xml
+# .idea/libraries
+
+# Mongo Explorer plugin:
+# .idea/mongoSettings.xml
+
+## File-based project format:
+*.ipr
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+/out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+
+
+### Eclipse ###
+*.pydevproject
+.metadata
+.gradle
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.settings/
+.loadpath
+
+# Eclipse Core
+.project
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# CDT-specific
+.cproject
+
+# JDT-specific (Eclipse Java Development Tools)
+.classpath
+
+# PDT-specific
+.buildpath
+
+# sbteclipse plugin
+.target
+
+# TeXlipse plugin
+.texlipse
+
+
+### Linux ###
+*~
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+
+### OSX ###
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+
+### Windows ###
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'idea'
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 22
+    buildToolsVersion "21.1.2"
+
+    defaultConfig {
+        applicationId "ch.dissem.apps.abit"
+        minSdkVersion 15
+        targetSdkVersion 22
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile 'com.android.support:appcompat-v7:22.2.1'
+    compile 'com.android.support:support-v4:22.2.1'
+    compile 'com.android.support:design:22.2.1'
+
+    compile 'ch.dissem.jabit:jabit-domain:0.2.1-SNAPSHOT'
+    compile 'ch.dissem.jabit:jabit-networking:0.2.1-SNAPSHOT'
+    compile 'ch.dissem.jabit:jabit-repositories:0.2.1-SNAPSHOT'
+    compile 'ch.dissem.jabit:jabit-security-spongy:0.2.1-SNAPSHOT'
+
+    compile 'org.sqldroid:sqldroid:1.0.3'
+    compile 'org.slf4j:slf4j-android:1.7.12'
+
+    compile('com.mikepenz:materialdrawer:3.1.0@aar') {
+        transitive = true
+    }
+}
+
+idea.module {
+    downloadJavadoc = true
+    downloadSources = true
+}
+
+android {
+    lintOptions {
+        abortOnError false
+    }
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/chris/Library/Android/sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

app/src/androidTest/java/ch/dissem/apps/abit/ApplicationTest.java

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+package ch.dissem.apps.abit;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          xmlns:tools="http://schemas.android.com/tools"
+          package="ch.dissem.apps.abit">
+
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme">
+        <activity
+                android:name=".MessageListActivity"
+                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=".MessageDetailActivity"
+                android:label="@string/title_message_detail"
+                android:parentActivityName=".MessageListActivity"
+                tools:ignore="UnusedAttribute">
+            <meta-data
+                    android:name="android.support.PARENT_ACTIVITY"
+                    android:value=".MessageListActivity"/>
+        </activity>
+        <activity
+                android:name=".SettingsActivity"
+                android:label="@string/settings"
+                android:parentActivityName=".MessageListActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MANAGE_NETWORK_USAGE"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+            </intent-filter>
+        </activity>
+
+        <service
+                android:name=".service.BitmessageService"
+                android:enabled="true"
+                android:exported="true"
+                android:permission="">
+        </service>
+    </application>
+
+</manifest>

app/src/main/assets/db/migration/V1.0__Create_table_inventory.sql

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+CREATE TABLE Inventory (
+  hash    BINARY(32) NOT NULL PRIMARY KEY,
+  stream  INTEGER    NOT NULL,
+  expires INTEGER    NOT NULL,
+  data    BLOB       NOT NULL,
+  type    INTEGER    NOT NULL,
+  version INTEGER    NOT NULL
+);

app/src/main/assets/db/migration/V1.1__Create_table_address.sql

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+CREATE TABLE Address (
+  address                VARCHAR(40)   NOT NULL PRIMARY KEY,
+  version                INTEGER       NOT NULL,
+  alias                  VARCHAR(255),
+  public_key             BLOB,
+  private_key            BLOB,
+  subscribed             BIT DEFAULT '0'
+);

app/src/main/assets/db/migration/V1.2__Create_table_message.sql

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+CREATE TABLE Message (
+  id                      INTEGER PRIMARY KEY,
+  iv                      BINARY(32)    UNIQUE,
+  type                    VARCHAR(20)   NOT NULL,
+  sender                  VARCHAR(40)   NOT NULL,
+  recipient               VARCHAR(40),
+  data                    BLOB          NOT NULL,
+  sent                    INTEGER,
+  received                INTEGER,
+  status                  VARCHAR(20)   NOT NULL,
+
+  FOREIGN KEY (sender)    REFERENCES Address (address),
+  FOREIGN KEY (recipient) REFERENCES Address (address)
+);
+
+CREATE TABLE Label (
+  id                      INTEGER PRIMARY KEY,
+  label                   VARCHAR(255)  NOT NULL,
+  type                    VARCHAR(20),
+  color                   INT NOT NULL DEFAULT 4278190080, -- FF000000
+  ord                     INTEGER,
+
+  CONSTRAINT UC_label UNIQUE (label),
+  CONSTRAINT UC_order UNIQUE (ord)
+);
+
+CREATE TABLE Message_Label (
+  message_id INTEGER NOT NULL,
+  label_id   INTEGER NOT NULL,
+
+  PRIMARY KEY (message_id, label_id),
+  FOREIGN KEY (message_id) REFERENCES Message (id),
+  FOREIGN KEY (label_id)   REFERENCES Label (id)
+);
+
+INSERT INTO Label(label, type, color, ord) VALUES ('Inbox', 'INBOX', 4278190335, 0);
+INSERT INTO Label(label, type, color, ord) VALUES ('Drafts', 'DRAFT', 4294940928, 10);
+INSERT INTO Label(label, type, color, ord) VALUES ('Sent', 'SENT', 4294967040, 20);
+INSERT INTO Label(label, type, ord) VALUES ('Unread', 'UNREAD', 90);
+INSERT INTO Label(label, type, ord) VALUES ('Trash', 'TRASH', 100);

app/src/main/java/ch/dissem/apps/abit/MessageDetailActivity.java

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+package ch.dissem.apps.abit;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.ActionBarActivity;
+import android.support.v4.app.NavUtils;
+import android.view.MenuItem;
+
+
+/**
+ * An activity representing a single Message detail screen. This
+ * activity is only used on handset devices. On tablet-size devices,
+ * item details are presented side-by-side with a list of items
+ * in a {@link MessageListActivity}.
+ * <p/>
+ * This activity is mostly just a 'shell' activity containing nothing
+ * more than a {@link MessageDetailFragment}.
+ */
+public class MessageDetailActivity extends ActionBarActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_message_detail);
+
+        // Show the Up button in the action bar.
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+        // savedInstanceState is non-null when there is fragment state
+        // saved from previous configurations of this activity
+        // (e.g. when rotating the screen from portrait to landscape).
+        // In this case, the fragment will automatically be re-added
+        // to its container so we don't need to manually add it.
+        // For more information, see the Fragments API guide at:
+        //
+        // http://developer.android.com/guide/components/fragments.html
+        //
+        if (savedInstanceState == null) {
+            // Create the detail fragment and add it to the activity
+            // using a fragment transaction.
+            Bundle arguments = new Bundle();
+            arguments.putString(MessageDetailFragment.ARG_ITEM,
+                    getIntent().getStringExtra(MessageDetailFragment.ARG_ITEM));
+            MessageDetailFragment fragment = new MessageDetailFragment();
+            fragment.setArguments(arguments);
+            getSupportFragmentManager().beginTransaction()
+                    .add(R.id.message_detail_container, fragment)
+                    .commit();
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        int id = item.getItemId();
+        if (id == android.R.id.home) {
+            // This ID represents the Home or Up button. In the case of this
+            // activity, the Up button is shown. Use NavUtils to allow users
+            // to navigate up one level in the application structure. For
+            // more details, see the Navigation pattern on Android Design:
+            //
+            // http://developer.android.com/design/patterns/navigation.html#up-vs-back
+            //
+            NavUtils.navigateUpTo(this, new Intent(this, MessageListActivity.class));
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+}

app/src/main/java/ch/dissem/apps/abit/MessageDetailFragment.java

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+package ch.dissem.apps.abit;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import ch.dissem.bitmessage.entity.Plaintext;
+
+
+/**
+ * A fragment representing a single Message detail screen.
+ * This fragment is either contained in a {@link MessageListActivity}
+ * in two-pane mode (on tablets) or a {@link MessageDetailActivity}
+ * on handsets.
+ */
+public class MessageDetailFragment extends Fragment {
+    /**
+     * The fragment argument representing the item ID that this fragment
+     * represents.
+     */
+    public static final String ARG_ITEM = "item";
+
+    /**
+     * The dummy content this fragment is presenting.
+     */
+    private Plaintext item;
+
+    /**
+     * Mandatory empty constructor for the fragment manager to instantiate the
+     * fragment (e.g. upon screen orientation changes).
+     */
+    public MessageDetailFragment() {
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        if (getArguments().containsKey(ARG_ITEM)) {
+            // Load the dummy content specified by the fragment
+            // arguments. In a real-world scenario, use a Loader
+            // to load content from a content provider.
+            item = (Plaintext) getArguments().getSerializable(ARG_ITEM);
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View rootView = inflater.inflate(R.layout.fragment_message_detail, container, false);
+
+        // Show the dummy content as text in a TextView.
+        if (item != null) {
+            ((TextView) rootView.findViewById(R.id.message_detail)).setText(item.getText());
+        }
+
+        return rootView;
+    }
+}

app/src/main/java/ch/dissem/apps/abit/MessageListActivity.java

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+package ch.dissem.apps.abit;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.view.Menu;
+import android.view.View;
+import android.widget.AdapterView;
+import ch.dissem.apps.abit.service.Singleton;
+import ch.dissem.bitmessage.BitmessageContext;
+import ch.dissem.bitmessage.entity.BitmessageAddress;
+import ch.dissem.bitmessage.entity.Plaintext;
+import ch.dissem.bitmessage.entity.valueobject.Label;
+import com.mikepenz.google_material_typeface_library.GoogleMaterial;
+import com.mikepenz.iconics.IconicsDrawable;
+import com.mikepenz.materialdrawer.Drawer;
+import com.mikepenz.materialdrawer.DrawerBuilder;
+import com.mikepenz.materialdrawer.accountswitcher.AccountHeader;
+import com.mikepenz.materialdrawer.accountswitcher.AccountHeaderBuilder;
+import com.mikepenz.materialdrawer.model.PrimaryDrawerItem;
+import com.mikepenz.materialdrawer.model.ProfileDrawerItem;
+import com.mikepenz.materialdrawer.model.ProfileSettingDrawerItem;
+import com.mikepenz.materialdrawer.model.SecondaryDrawerItem;
+import com.mikepenz.materialdrawer.model.interfaces.IDrawerItem;
+import com.mikepenz.materialdrawer.model.interfaces.IProfile;
+import com.mikepenz.materialdrawer.model.interfaces.Nameable;
+
+import java.util.ArrayList;
+
+
+/**
+ * An activity representing a list of Messages. This activity
+ * has different presentations for handset and tablet-size devices. On
+ * handsets, the activity presents a list of items, which when touched,
+ * lead to a {@link MessageDetailActivity} representing
+ * item details. On tablets, the activity presents the list of items and
+ * item details side-by-side using two vertical panes.
+ * <p>
+ * The activity makes heavy use of fragments. The list of items is a
+ * {@link MessageListFragment} and the item details
+ * (if present) is a {@link MessageDetailFragment}.
+ * </p><p>
+ * This activity also implements the required
+ * {@link MessageListFragment.Callbacks} interface
+ * to listen for item selections.
+ * </p>
+ */
+public class MessageListActivity extends AppCompatActivity
+        implements MessageListFragment.Callbacks {
+    private static final int ADD_IDENTITY = 1;
+
+    /**
+     * Whether or not the activity is in two-pane mode, i.e. running on a tablet
+     * device.
+     */
+    private boolean twoPane;
+
+    private AccountHeader accountHeader;
+    private BitmessageContext bmc;
+    private Label selectedLabel;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        bmc = Singleton.getBitmessageContext(this);
+        selectedLabel = bmc.messages().getLabels().get(0);
+
+        setContentView(R.layout.activity_message_list);
+
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        if (findViewById(R.id.message_detail_container) != null) {
+            // The detail container view will be present only in the
+            // large-screen layouts (res/values-large and
+            // res/values-sw600dp). If this view is present, then the
+            // activity should be in two-pane mode.
+            twoPane = true;
+
+            // In two-pane mode, list items should be given the
+            // 'activated' state when touched.
+            ((MessageListFragment) getSupportFragmentManager()
+                    .findFragmentById(R.id.message_list))
+                    .setActivateOnItemClick(true);
+        }
+
+        createDrawer(toolbar);
+
+        // TODO: If exposing deep links into your app, handle intents here.
+    }
+
+    private void createDrawer(Toolbar toolbar) {
+        final ArrayList<IProfile> profiles = new ArrayList<>();
+        for (BitmessageAddress identity : bmc.addresses().getIdentities()) {
+            profiles.add(new ProfileDrawerItem()
+                            .withName(identity.toString())
+                            .withEmail(identity.getAddress())
+                            .withTag(identity)
+            );
+        }
+        profiles.add(new ProfileSettingDrawerItem()
+                        .withName("Add Identity")
+                        .withDescription("Create new identity")
+                        .withIcon(new IconicsDrawable(this, GoogleMaterial.Icon.gmd_add)
+                                .actionBar()
+                                .paddingDp(5)
+                                .colorRes(R.color.icons))
+                        .withIdentifier(ADD_IDENTITY)
+        );
+        profiles.add(new ProfileSettingDrawerItem()
+                        .withName("Manage Account")
+                        .withIcon(GoogleMaterial.Icon.gmd_settings)
+        );
+        // Create the AccountHeader
+        accountHeader = new AccountHeaderBuilder()
+                .withActivity(this)
+                .withHeaderBackground(R.drawable.header)
+                .withProfiles(profiles)
+                .withOnAccountHeaderListener(new AccountHeader.OnAccountHeaderListener() {
+                    @Override
+                    public boolean onProfileChanged(View view, IProfile profile, boolean currentProfile) {
+                        if (profile.getIdentifier() == ADD_IDENTITY) {
+                            BitmessageAddress identity = bmc.createIdentity(false);
+                            IProfile newProfile = new ProfileDrawerItem()
+                                    .withName(identity.toString())
+                                    .withEmail(identity.getAddress())
+                                    .withTag(identity);
+                            if (accountHeader.getProfiles() != null) {
+                                //we know that there are 2 setting elements. set the new profile above them ;)
+                                accountHeader.addProfile(newProfile, accountHeader.getProfiles().size() - 2);
+                            } else {
+                                accountHeader.addProfiles(newProfile);
+                            }
+                        }
+                        // false if it should close the drawer
+                        return false;
+                    }
+                })
+                .build();
+
+        ArrayList<IDrawerItem> drawerItems = new ArrayList<>();
+        for (Label label : bmc.messages().getLabels()) {
+            drawerItems.add(new PrimaryDrawerItem().withName(label.toString()).withTag(label));
+        }
+
+        new DrawerBuilder()
+                .withActivity(this)
+                .withToolbar(toolbar)
+                .withAccountHeader(accountHeader)
+                .withDrawerItems(drawerItems)
+                .addStickyDrawerItems(
+                        new SecondaryDrawerItem()
+                                .withName(R.string.settings)
+                                .withIcon(GoogleMaterial.Icon.gmd_settings)
+                )
+                .withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
+                    @Override
+                    public boolean onItemClick(AdapterView<?> adapterView, View view, int i, long l, IDrawerItem item) {
+                        if (item.getTag() instanceof Label) {
+                            selectedLabel = (Label) item.getTag();
+                        } else if (item instanceof Nameable<?>) {
+                            Nameable<?> ni = (Nameable<?>) item;
+                            switch (ni.getNameRes()) {
+                                case R.string.settings:
+                                    startActivity(new Intent(MessageListActivity.this, SettingsActivity.class));
+                                    break;
+                            }
+                        }
+                        return false;
+                    }
+                })
+                .build();
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.main, menu);
+        boolean running = bmc.isRunning();
+        menu.findItem(R.id.sync_enabled).setVisible(running);
+        menu.findItem(R.id.sync_disabled).setVisible(!running);
+        return true;
+    }
+
+    /**
+     * Callback method from {@link MessageListFragment.Callbacks}
+     * indicating that the item with the given ID was selected.
+     */
+    @Override
+    public void onItemSelected(Plaintext plaintext) {
+        if (twoPane) {
+            // In two-pane mode, show the detail view in this activity by
+            // adding or replacing the detail fragment using a
+            // fragment transaction.
+            Bundle arguments = new Bundle();
+            arguments.putSerializable(MessageDetailFragment.ARG_ITEM, plaintext);
+            MessageDetailFragment fragment = new MessageDetailFragment();
+            fragment.setArguments(arguments);
+            getSupportFragmentManager().beginTransaction()
+                    .replace(R.id.message_detail_container, fragment)
+                    .commit();
+
+        } else {
+            // In single-pane mode, simply start the detail activity
+            // for the selected item ID.
+            Intent detailIntent = new Intent(this, MessageDetailActivity.class);
+            detailIntent.putExtra(MessageDetailFragment.ARG_ITEM, plaintext);
+            startActivity(detailIntent);
+        }
+    }
+
+    public Label getSelectedLabel() {
+        return selectedLabel;
+    }
+}

app/src/main/java/ch/dissem/apps/abit/MessageListFragment.java

@@ -0,0 +1,177 @@
+package ch.dissem.apps.abit;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v4.app.ListFragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+import android.widget.Toast;
+import ch.dissem.apps.abit.service.Singleton;
+import ch.dissem.bitmessage.BitmessageContext;
+import ch.dissem.bitmessage.entity.Plaintext;
+
+/**
+ * A list fragment representing a list of Messages. This fragment
+ * also supports tablet devices by allowing list items to be given an
+ * 'activated' state upon selection. This helps indicate which item is
+ * currently being viewed in a {@link MessageDetailFragment}.
+ * <p/>
+ * Activities containing this fragment MUST implement the {@link Callbacks}
+ * interface.
+ */
+public class MessageListFragment extends ListFragment {
+
+    /**
+     * The serialization (saved instance state) Bundle key representing the
+     * activated item position. Only used on tablets.
+     */
+    private static final String STATE_ACTIVATED_POSITION = "activated_position";
+
+    /**
+     * The fragment's current callback object, which is notified of list item
+     * clicks.
+     */
+    private Callbacks mCallbacks = sDummyCallbacks;
+
+    /**
+     * The current activated item position. Only used on tablets.
+     */
+    private int mActivatedPosition = ListView.INVALID_POSITION;
+
+    private BitmessageContext bmc;
+
+    /**
+     * A callback interface that all activities containing this fragment must
+     * implement. This mechanism allows activities to be notified of item
+     * selections.
+     */
+    public interface Callbacks {
+        /**
+         * Callback for when an item has been selected.
+         */
+        void onItemSelected(Plaintext plaintext);
+    }
+
+    /**
+     * A dummy implementation of the {@link Callbacks} interface that does
+     * nothing. Used only when this fragment is not attached to an activity.
+     */
+    private static Callbacks sDummyCallbacks = new Callbacks() {
+        @Override
+        public void onItemSelected(Plaintext plaintext) {
+        }
+    };
+
+    /**
+     * Mandatory empty constructor for the fragment manager to instantiate the
+     * fragment (e.g. upon screen orientation changes).
+     */
+    public MessageListFragment() {
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        bmc = Singleton.getBitmessageContext(getActivity());
+
+        // TODO: replace with a real list adapter.
+        setListAdapter(new ArrayAdapter<>(
+                getActivity(),
+                android.R.layout.simple_list_item_activated_1,
+                android.R.id.text1,
+                bmc.messages().findMessages(((MessageListActivity) getActivity()).getSelectedLabel())));
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View rootView = inflater.inflate(R.layout.fragment_message_list, container, false);
+
+        // Show the dummy content as text in a TextView.
+        FloatingActionButton fab = (FloatingActionButton) rootView.findViewById(R.id.fab_compose_message);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Toast.makeText(MessageListFragment.this.getActivity(), "TODO", Toast.LENGTH_SHORT).show();
+            }
+        });
+
+        return rootView;
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        // Restore the previously serialized activated item position.
+        if (savedInstanceState != null
+                && savedInstanceState.containsKey(STATE_ACTIVATED_POSITION)) {
+            setActivatedPosition(savedInstanceState.getInt(STATE_ACTIVATED_POSITION));
+        }
+    }
+
+    @Override
+    public void onAttach(Activity activity) {
+        super.onAttach(activity);
+
+        // Activities containing this fragment must implement its callbacks.
+        if (!(activity instanceof Callbacks)) {
+            throw new IllegalStateException("Activity must implement fragment's callbacks.");
+        }
+
+        mCallbacks = (Callbacks) activity;
+    }
+
+    @Override
+    public void onDetach() {
+        super.onDetach();
+
+        // Reset the active callbacks interface to the dummy implementation.
+        mCallbacks = sDummyCallbacks;
+    }
+
+    @Override
+    public void onListItemClick(ListView listView, View view, int position, long id) {
+        super.onListItemClick(listView, view, position, id);
+
+        // Notify the active callbacks interface (the activity, if the
+        // fragment is attached to one) that an item has been selected.
+        mCallbacks.onItemSelected((Plaintext) listView.getItemAtPosition(position));
+    }
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        if (mActivatedPosition != ListView.INVALID_POSITION) {
+            // Serialize and persist the activated item position.
+            outState.putInt(STATE_ACTIVATED_POSITION, mActivatedPosition);
+        }
+    }
+
+    /**
+     * Turns on activate-on-click mode. When this mode is on, list items will be
+     * given the 'activated' state when touched.
+     */
+    public void setActivateOnItemClick(boolean activateOnItemClick) {
+        // When setting CHOICE_MODE_SINGLE, ListView will automatically
+        // give items the 'activated' state when touched.
+        getListView().setChoiceMode(activateOnItemClick
+                ? ListView.CHOICE_MODE_SINGLE
+                : ListView.CHOICE_MODE_NONE);
+    }
+
+    private void setActivatedPosition(int position) {
+        if (position == ListView.INVALID_POSITION) {
+            getListView().setItemChecked(mActivatedPosition, false);
+        } else {
+            getListView().setItemChecked(position, true);
+        }
+
+        mActivatedPosition = position;
+    }
+}

app/src/main/java/ch/dissem/apps/abit/SQLiteConfig.java

@@ -0,0 +1,37 @@
+package ch.dissem.apps.abit;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.os.Environment;
+import ch.dissem.bitmessage.repository.JdbcConfig;
+import org.flywaydb.core.api.android.ContextHolder;
+import org.sqldroid.SQLDroidDriver;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.util.Properties;
+
+/**
+ * Created by chris on 14.07.15.
+ */
+public class SQLiteConfig extends JdbcConfig {
+
+    public SQLiteConfig(Context ctx) {
+        super(getDbUrl(ctx), "", "");
+    }
+
+    private static String getDbUrl(Context ctx) {
+        SQLiteDatabase db = ctx.openOrCreateDatabase(Environment.getExternalStorageDirectory()
+                + "/jabit.db", Context.MODE_PRIVATE, null);
+        ContextHolder.setContext(ctx);
+        return "jdbc:sqlite:" + db.getPath() + "?timeout=5";
+    }
+
+    @Override
+    public Connection getConnection() throws SQLException {
+        Properties removeLocale = new Properties();
+        removeLocale.put(SQLDroidDriver.ADDITONAL_DATABASE_FLAGS, android.database.sqlite.SQLiteDatabase.NO_LOCALIZED_COLLATORS);
+        return DriverManager.getConnection(dbUrl, removeLocale);
+    }
+}

app/src/main/java/ch/dissem/apps/abit/SettingsActivity.java

@@ -0,0 +1,27 @@
+package ch.dissem.apps.abit;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+
+/**
+ * Created by chris on 14.07.15.
+ */
+public class SettingsActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.toolbar_layout);
+
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        getSupportActionBar().setHomeButtonEnabled(false);
+
+        // Display the fragment as the main content.
+        getFragmentManager().beginTransaction()
+                .replace(R.id.content, new SettingsFragment())
+                .commit();
+    }
+}

app/src/main/java/ch/dissem/apps/abit/SettingsFragment.java

@@ -0,0 +1,18 @@
+package ch.dissem.apps.abit;
+
+import android.os.Bundle;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceFragment;
+
+/**
+ * Created by chris on 14.07.15.
+ */
+public class SettingsFragment extends PreferenceFragment {
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Load the preferences from an XML resource
+        addPreferencesFromResource(R.xml.preferences);
+    }
+}

app/src/main/java/ch/dissem/apps/abit/service/BitmessageService.java

@@ -0,0 +1,104 @@
+package ch.dissem.apps.abit.service;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Binder;
+import android.os.IBinder;
+import android.support.v7.app.NotificationCompat;
+import ch.dissem.apps.abit.R;
+import ch.dissem.bitmessage.BitmessageContext;
+import ch.dissem.bitmessage.entity.BitmessageAddress;
+import ch.dissem.bitmessage.entity.Plaintext;
+import ch.dissem.bitmessage.entity.valueobject.Label;
+
+import java.util.List;
+
+public class BitmessageService extends Service {
+    private static BitmessageContext ctx;
+    private ServiceBinder binder = new ServiceBinder();
+    private NotificationCompat.Builder ongoingNotificationBuilder = new NotificationCompat.Builder(this);
+    private NotificationManager notifyManager;
+
+    public BitmessageService() {
+        if (ctx == null) {
+            ctx = Singleton.getBitmessageContext(this);
+        }
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        ongoingNotificationBuilder.setOngoing(true);
+        ongoingNotificationBuilder.setContentTitle(getString(R.string.bitmessage_active));
+        ongoingNotificationBuilder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC);
+//        ongoingNotificationBuilder.setSmallIcon(R.drawable.ic_bitmessage);
+        notifyManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
+    }
+
+    public void startService() {
+        if (!ctx.isRunning()) {
+            notifyManager.notify(0, ongoingNotificationBuilder.build());
+            ctx.startup(new BitmessageContext.Listener() {
+                @Override
+                public void receive(Plaintext plaintext) {
+                    Notification notification = new NotificationCompat.Builder(BitmessageService.this)
+                            .setContentTitle(plaintext.getSubject())
+                            .setContentText(plaintext.getText())
+                            .setVisibility(NotificationCompat.VISIBILITY_PRIVATE)
+                            .setPriority(plaintext.getType() == Plaintext.Type.BROADCAST
+                                    ? NotificationCompat.PRIORITY_DEFAULT
+                                    : NotificationCompat.PRIORITY_HIGH)
+                            .build();
+                    notifyManager.notify(plaintext.getInventoryVector().hashCode(), notification);
+                }
+            });
+        }
+    }
+
+    public void stopService() {
+        ctx.shutdown();
+        notifyManager.cancel(0);
+    }
+
+    public List<BitmessageAddress> getIdentities() {
+        return ctx.addresses().getIdentities();
+    }
+
+    public List<BitmessageAddress> getContacts() {
+        return ctx.addresses().getContacts();
+    }
+
+    public List<Plaintext> getMessages(Label label) {
+        return ctx.messages().findMessages(label);
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return binder;
+    }
+
+    public class ServiceBinder extends Binder {
+        public BitmessageService getService() {
+            return BitmessageService.this;
+        }
+    }
+
+    public enum NetworkChoice {
+        /**
+         * A full node, receiving and relaying objects all the time.
+         */
+        FULL,
+        /**
+         * Connect to a trusted node from time to time to get all new objects and disconnect afterwards
+         * (see {@link android.content.AbstractThreadedSyncAdapter})
+         */
+        TRUSTED,
+        /**
+         * Offline
+         */
+        NONE
+    }
+}

app/src/main/java/ch/dissem/apps/abit/service/Singleton.java

@@ -0,0 +1,34 @@
+package ch.dissem.apps.abit.service;
+
+import android.content.Context;
+import ch.dissem.apps.abit.SQLiteConfig;
+import ch.dissem.bitmessage.BitmessageContext;
+import ch.dissem.bitmessage.networking.DefaultNetworkHandler;
+import ch.dissem.bitmessage.repository.*;
+import ch.dissem.bitmessage.security.sc.SpongySecurity;
+
+/**
+ * Created by chris on 16.07.15.
+ */
+public class Singleton {
+    private static BitmessageContext bitmessageContext;
+
+    public static BitmessageContext getBitmessageContext(Context ctx) {
+        if (bitmessageContext == null) {
+            synchronized (Singleton.class) {
+                if (bitmessageContext == null) {
+                    JdbcConfig config = new SQLiteConfig(ctx);
+                    bitmessageContext = new BitmessageContext.Builder()
+                            .security(new SpongySecurity())
+                            .nodeRegistry(new MemoryNodeRegistry())
+                            .inventory(new JdbcInventory(config))
+                            .addressRepo(new JdbcAddressRepository(config))
+                            .messageRepo(new JdbcMessageRepository(config))
+                            .networkHandler(new DefaultNetworkHandler())
+                            .build();
+                }
+            }
+        }
+        return bitmessageContext;
+    }
+}

app/src/main/java/im/delight/android/identicons/Identicon.java

@@ -0,0 +1,213 @@
+package im.delight.android.identicons;
+
+/**
+ * Copyright 2014 www.delight.im <info@delight.im>
+ *
+ * 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.
+ */
+
+import java.security.MessageDigest;
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.os.Build;
+import android.util.AttributeSet;
+import android.view.View;
+
+abstract public class Identicon extends View {
+
+    private static final String HASH_ALGORITHM = "SHA-256";
+    private final int mRowCount;
+    private final int mColumnCount;
+    private final Paint mPaint;
+    private volatile int mCellWidth;
+    private volatile int mCellHeight;
+    private volatile byte[] mHash;
+    private volatile int[][] mColors;
+    private volatile boolean mReady;
+
+    public Identicon(Context context) {
+        super(context);
+
+        mRowCount = getRowCount();
+        mColumnCount = getColumnCount();
+        mPaint = new Paint();
+
+        init();
+    }
+
+    public Identicon(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        mRowCount = getRowCount();
+        mColumnCount = getColumnCount();
+        mPaint = new Paint();
+
+        init();
+    }
+
+    public Identicon(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+
+        mRowCount = getRowCount();
+        mColumnCount = getColumnCount();
+        mPaint = new Paint();
+
+        init();
+    }
+
+    @SuppressLint("NewApi")
+    protected void init() {
+        mPaint.setStyle(Paint.Style.FILL);
+        mPaint.setAntiAlias(true);
+        mPaint.setDither(true);
+
+        setWillNotDraw(false);
+        if (Build.VERSION.SDK_INT >= 11) {
+            setLayerType(View.LAYER_TYPE_SOFTWARE, null);
+        }
+    }
+
+    public void show(String input) {
+        // if the input was null
+        if (input == null) {
+            // we can't create a hash value and have nothing to show (draw to the view)
+            mHash = null;
+        }
+        // if the input was a proper string (non-null)
+        else {
+            // generate a hash from the string to get unique but deterministic byte values
+            try {
+                final MessageDigest digest = java.security.MessageDigest.getInstance(HASH_ALGORITHM);
+                digest.update(input == null ? new byte[0] : input.getBytes());
+                mHash = digest.digest();
+            }
+            catch (Exception e) {
+                mHash = null;
+            }
+        }
+
+        // set up the cell colors according to the input that was provided via show(...)
+        setupColors();
+
+        // this view may now be drawn (and thus must be re-drawn)
+        mReady = true;
+        invalidate();
+    }
+
+    public void show(int input) {
+        show(String.valueOf(input));
+    }
+
+    public void show(long input) {
+        show(String.valueOf(input));
+    }
+
+    public void show(float input) {
+        show(String.valueOf(input));
+    }
+
+    public void show(double input) {
+        show(String.valueOf(input));
+    }
+
+    public void show(byte input) {
+        show(String.valueOf(input));
+    }
+
+    public void show(char input) {
+        show(String.valueOf(input));
+    }
+
+    public void show(boolean input) {
+        show(String.valueOf(input));
+    }
+
+    public void show(Object input) {
+        if (input == null) {
+            mHash = null;
+        }
+        else {
+            show(String.valueOf(input));
+        }
+    }
+
+    protected void setupColors() {
+        mColors = new int[mRowCount][mColumnCount];
+        int colorVisible = getIconColor();
+
+        for (int r = 0; r < mRowCount; r++) {
+            for (int c = 0; c < mColumnCount; c++) {
+                if (isCellVisible(r, c)) {
+                    mColors[r][c] = colorVisible;
+                }
+                else {
+                    mColors[r][c] = Color.TRANSPARENT;
+                }
+            }
+        }
+    }
+
+    protected byte getByte(int index) {
+        if (mHash == null) {
+            return -128;
+        }
+        else {
+            return mHash[index % mHash.length];
+        }
+    }
+
+    abstract protected int getRowCount();
+
+    abstract protected int getColumnCount();
+
+    abstract protected boolean isCellVisible(int row, int column);
+
+    abstract protected int getIconColor();
+
+    @Override
+    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+        super.onSizeChanged(w, h, oldw, oldh);
+
+        mCellWidth = w / mColumnCount;
+        mCellHeight = h / mRowCount;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+        int size = Math.min(getMeasuredWidth(), getMeasuredHeight());
+        setMeasuredDimension(size, size);
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        if (mReady) {
+            int x, y;
+            for (int r = 0; r < mRowCount; r++) {
+                for (int c = 0; c < mColumnCount; c++) {
+                    x = mCellWidth * c;
+                    y = mCellHeight * r;
+
+                    mPaint.setColor(mColors[r][c]);
+
+                    canvas.drawRect(x, y + mCellHeight, x + mCellWidth, y, mPaint);
+                }
+            }
+        }
+    }
+
+}

app/src/main/res/layout-sw600dp/activity_message_list.xml

@@ -0,0 +1,47 @@
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                android:gravity="center"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+
+    <android.support.v7.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            android:elevation="4dp"/>
+
+    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                  xmlns:tools="http://schemas.android.com/tools"
+                  android:layout_below="@id/toolbar"
+                  android:layout_width="match_parent"
+                  android:layout_height="match_parent"
+                  android:layout_marginLeft="16dp"
+                  android:layout_marginRight="16dp"
+                  android:baselineAligned="false"
+                  android:divider="?android:attr/dividerHorizontal"
+                  android:orientation="horizontal"
+                  android:showDividers="middle"
+                  tools:context=".MessageListActivity">
+
+        <!--
+        This layout is a two-pane layout for the Messages
+        master/detail flow.
+
+        -->
+
+        <fragment
+                android:id="@+id/message_list"
+                android:name="ch.dissem.apps.abit.MessageListFragment"
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                tools:layout="@android:layout/list_content"/>
+
+        <FrameLayout
+                android:id="@+id/message_detail_container"
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="3"/>
+
+    </LinearLayout>
+</RelativeLayout>

app/src/main/res/layout/activity_message_detail.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:app="http://schemas.android.com/apk/res-auto"
+                android:gravity="center"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+
+    <android.support.v7.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
+            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
+            android:elevation="4dp" />
+
+    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                 xmlns:tools="http://schemas.android.com/tools"
+                 android:layout_below="@id/toolbar"
+                 android:id="@+id/message_detail_container"
+                 android:layout_width="match_parent"
+                 android:layout_height="match_parent"
+                 tools:context=".MessageDetailActivity"
+                 tools:layout="@android:layout/list_content"/>
+</RelativeLayout>

app/src/main/res/layout/activity_message_list.xml

@@ -0,0 +1,25 @@
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:app="http://schemas.android.com/apk/res-auto"
+                android:gravity="center"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+
+    <android.support.v7.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
+            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
+            android:elevation="4dp" />
+
+    <fragment xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
+              android:layout_below="@id/toolbar"
+              android:id="@+id/message_list"
+              android:name="ch.dissem.apps.abit.MessageListFragment"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              tools:context=".MessageListActivity"
+              tools:layout="@android:layout/list_content"/>
+</RelativeLayout>

app/src/main/res/layout/fragment_message_detail.xml

@@ -0,0 +1,9 @@
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+          xmlns:tools="http://schemas.android.com/tools"
+          android:id="@+id/message_detail"
+          style="?android:attr/textAppearanceLarge"
+          android:layout_width="match_parent"
+          android:layout_height="match_parent"
+          android:padding="16dp"
+          android:textIsSelectable="true"
+          tools:context=".MessageDetailFragment"/>

app/src/main/res/layout/fragment_message_list.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:app="http://schemas.android.com/apk/res-auto"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+
+    <ListView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@id/android:list"
+
+            android:layout_alignParentTop="true"
+            android:layout_alignParentLeft="true"
+            android:layout_alignParentStart="true"
+            android:layout_alignParentBottom="true" />
+
+    <android.support.design.widget.FloatingActionButton
+            android:id="@+id/fab_compose_message"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:src="@drawable/ic_plus_sign"
+            app:elevation="8dp"
+            android:layout_alignParentBottom="true"
+            android:layout_alignParentEnd="true"
+            android:layout_alignParentRight="true"
+            android:layout_margin="16dp"/>
+</RelativeLayout>

app/src/main/res/layout/toolbar_layout.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:app="http://schemas.android.com/apk/res-auto"
+                android:gravity="center"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent">
+
+    <android.support.v7.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
+            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
+            android:elevation="4dp" />
+
+    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
+              android:layout_below="@id/toolbar"
+              android:id="@+id/content"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              tools:context=".MessageListActivity"
+              tools:layout="@android:layout/list_content"/>
+</RelativeLayout>
+

app/src/main/res/menu/main.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+            android:id="@+id/sync_enabled"
+            app:showAsAction="always"
+            android:icon="@drawable/ic_action_notification_sync"
+            android:title="@string/disable_sync"/>
+    <item
+            android:id="@+id/sync_disabled"
+            app:showAsAction="always"
+            android:icon="@drawable/ic_action_notification_sync_disabled"
+            android:title="@string/enable_sync"/>
+</menu>

app/src/main/res/values-de/strings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">Abit</string>
+    <string name="settings">Einstellungen</string>
+    <string name="wifi_only">Nur WLAN</string>
+    <string name="wifi_only_summary">Nicht mit Mobilfunknetz verbinden</string>
+</resources>

app/src/main/res/values-v21/styles.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="AppTheme" parent="AppTheme.Base">
+
+        <!-- Main theme colors -->
+        <!--   your app branding color for the app bar -->
+        <item name="android:colorPrimary">@color/primary</item>
+        <!--   darker variant for the status bar and contextual app bars -->
+        <item name="android:colorPrimaryDark">@color/primary_dark</item>
+        <!--   theme UI controls like checkboxes and text fields -->
+        <item name="android:colorAccent">@color/accent</item>
+
+        <item name="android:windowContentTransitions">true</item>
+        <item name="android:windowAllowEnterTransitionOverlap">true</item>
+        <item name="android:windowAllowReturnTransitionOverlap">true</item>
+        <item name="android:windowSharedElementEnterTransition">@android:transition/move</item>
+        <item name="android:windowSharedElementExitTransition">@android:transition/move</item>
+
+        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+        <!--<item name="android:statusBarColor">@android:color/transparent</item>-->
+
+    </style>
+</resources>

app/src/main/res/values/arrays.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="connection_modes">
+        <item>full</item>
+        <item>trusted</item>
+        <item>offline</item>
+    </string-array>
+    <string-array name="connection_mode_values">
+        <item>A full node, receiving and relaying objects all the time.</item>
+        <item>Connect to a trusted node from time to time to get new objects.</item>
+        <item>Don\'t connect to the network.</item>
+    </string-array>
+</resources>

app/src/main/res/values/colors.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Palette generated by Material Palette - materialpalette.com/blue-grey/orange -->
+<resources>
+  <color name="primary">#607D8B</color>
+  <color name="primary_dark">#455A64</color>
+  <color name="primary_light">#CFD8DC</color>
+  <color name="accent">#FF9800</color>
+  <color name="primary_text">#212121</color>
+  <color name="secondary_text">#727272</color>
+  <color name="icons">#FFFFFF</color>
+  <color name="divider">#B6B6B6</color>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,11 @@
+<resources>
+    <string name="app_name">Abit</string>
+    <string name="title_message_detail">Message Detail</string>
+    <string name="disable_sync">Disable Sync</string>
+    <string name="enable_sync">Enable Sync</string>
+    <string name="bitmessage_active">Bitmessage active</string>
+    <string name="wifi_mode">Wi-Fi Connection Mode</string>
+    <string name="settings">Settings</string>
+    <string name="wifi_only">Wi-Fi only</string>
+    <string name="wifi_only_summary">Don\'t connect to the mobile network</string>
+</resources>

app/src/main/res/values/styles.xml

@@ -0,0 +1,24 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme.Base" parent="MaterialDrawerTheme.Light.DarkToolbar.TranslucentStatus">
+
+        <item name="android:activatedBackgroundIndicator">@color/primary_light</item>
+
+        <!-- MaterialDrawer specific values -->
+        <item name="material_drawer_background">@color/primary_dark</item>
+        <item name="material_drawer_icons">@color/icons</item>
+        <item name="material_drawer_primary_icon">@color/icons</item>
+        <item name="material_drawer_primary_text">@color/icons</item>
+        <item name="material_drawer_secondary_text">@color/icons</item>
+        <item name="material_drawer_hint_text">@color/icons</item>
+        <item name="material_drawer_divider">@color/icons</item>
+        <item name="material_drawer_selected">@color/primary</item>
+        <item name="material_drawer_selected_text">@color/icons</item>
+        <item name="material_drawer_header_selection_text">@color/icons</item>
+
+    </style>
+
+    <style name="AppTheme" parent="AppTheme.Base"/>
+
+</resources>

app/src/main/res/xml/preferences.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--
+    <ListPreference
+            android:key="wifi_mode"
+            android:title="@string/wifi_mode"
+            android:dialogTitle="@string/wifi_mode"
+            android:entries="@array/connection_modes"
+            android:entryValues="@array/connection_mode_values"/>
+    -->
+    <SwitchPreference
+            android:key="wifi_only"
+            android:title="@string/wifi_only"
+            android:summary="@string/wifi_only_summary"
+            android:defaultValue="true"/>
+</PreferenceScreen>

build.gradle

@@ -0,0 +1,25 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+configurations.all {
+    // check for updates every build
+    resolutionStrategy.cacheChangingModulesFor 0, 'seconds'
+}
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.2.3'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+        mavenCentral()
+        maven { url 'https://oss.sonatype.org/content/repositories/snapshots/' }
+    }
+}

gradle.properties

@@ -0,0 +1,18 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+# Default value: -Xmx10248m -XX:MaxPermSize=256m
+# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.5-all.zip

gradlew

@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

gradlew.bat

@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+include ':app'