Step 6: Make the default build be an exopackage

AndroidManifest.xml

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!-- The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted. -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="de.danoeh.antennapod"
           android:versionCode="37"
@@ -32,7 +33,7 @@
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
 
     <application
-        android:name="de.danoeh.antennapod.PodcastApp"
+        android:name="de.danoeh.antennapod.AppShell"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:backupAgent=".backup.OpmlBackupAgent"

BUCK

@@ -37,9 +37,11 @@ android_build_config(
   package = 'de.danoeh.antennapod',
 )
 
+APP_CLASS_SOURCE = 'src/de/danoeh/antennapod/AppShell.java'
+
 android_library(
   name = 'main-lib',
-  srcs = glob(['src/de/danoeh/antennapod/**/*.java']),
+  srcs = glob(['src/de/danoeh/antennapod/**/*.java'], excludes = [APP_CLASS_SOURCE]),
   deps = [
     ':all-jars',
     ':dslv-lib',
@@ -50,6 +52,15 @@ android_library(
   ],
 )
 
+android_library(
+  name = 'application-lib',
+  srcs = [APP_CLASS_SOURCE],
+  deps = [
+    ':build-config',
+    ':jars__buck-android-support',
+  ],
+)
+
 android_resource(
   name = 'res',
   package = 'de.danoeh.antennapod',
@@ -105,8 +116,16 @@ android_binary(
   name = 'antennapod',
   manifest = ':manifest',
   keystore = ':debug_keystore',
+  use_split_dex = True,
+  exopackage = True,
+  primary_dex_patterns = [
+    '^de/danoeh/antennapod/AppShell^',
+    '^de/danoeh/antennapod/BuildConfig^',
+    '^com/facebook/buck/android/support/exopackage/'
+  ],
   deps = [
     ':main-lib',
+    ':application-lib',
   ],
 )
 

src/de/danoeh/antennapod/AppShell.java

@@ -0,0 +1,10 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
+package de.danoeh.antennapod;
+
+import com.facebook.buck.android.support.exopackage.ExopackageApplication;
+
+public class AppShell extends ExopackageApplication {
+    public AppShell() {
+        super("de.danoeh.antennapod.PodcastApp", BuildConfig.IS_EXOPACKAGE);
+    }
+}

src/de/danoeh/antennapod/PodcastApp.java

@@ -1,16 +1,18 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod;
 
 import android.app.Application;
 import android.content.res.Configuration;
 import android.util.Log;
+import com.facebook.buck.android.support.exopackage.DefaultApplicationLike;
 import de.danoeh.antennapod.asynctask.ImageLoader;
 import de.danoeh.antennapod.feed.EventDistributor;
 import de.danoeh.antennapod.preferences.PlaybackPreferences;
 import de.danoeh.antennapod.preferences.UserPreferences;
 import de.danoeh.antennapod.spa.SPAUtil;
 
 /** Main application class. */
-public class PodcastApp extends Application {
+public class PodcastApp extends DefaultApplicationLike {
 
 	private static final String TAG = "PodcastApp";
 	public static final String EXPORT_DIR = "export/";
@@ -19,37 +21,45 @@ public class PodcastApp extends Application {
 
 	private static PodcastApp singleton;
 
-	public static PodcastApp getInstance() {
+    public static PodcastApp getInstance() {
 		return singleton;
 	}
 
+    private final Application appContext;
+
+    public static Application getAppContext() {
+        return getInstance().appContext;
+    }
+
+    public PodcastApp(Application appContext) {
+        this.appContext = appContext;
+    }
+
 	@Override
 	public void onCreate() {
-		super.onCreate();
 		singleton = this;
-		LOGICAL_DENSITY = getResources().getDisplayMetrics().density;
+		LOGICAL_DENSITY = appContext.getResources().getDisplayMetrics().density;
 
-		UserPreferences.createInstance(this);
-		PlaybackPreferences.createInstance(this);
+		UserPreferences.createInstance(appContext);
+		PlaybackPreferences.createInstance(appContext);
 		EventDistributor.getInstance();
 
-        SPAUtil.sendSPAppsQueryFeedsIntent(this);
+        SPAUtil.sendSPAppsQueryFeedsIntent(appContext);
 	}
 
 	@Override
 	public void onLowMemory() {
-		super.onLowMemory();
 		Log.w(TAG, "Received onLowOnMemory warning. Cleaning image cache...");
 		ImageLoader.getInstance().wipeImageCache();
 	}
 
-	public static float getLogicalDensity() {
+    public static float getLogicalDensity() {
 		return LOGICAL_DENSITY;
 	}
 
 	public boolean isLargeScreen() {
-		return (getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_LARGE
-				|| (getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE;
+		return (appContext.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_LARGE
+				|| (appContext.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE;
 
 	}
 }

src/de/danoeh/antennapod/asynctask/BitmapDecodeWorkerTask.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.asynctask;
 
 import android.graphics.BitmapFactory;
@@ -57,8 +58,8 @@ protected void onPostExecute() {
         // check if imageview is still supposed to display this image
         if (tagsMatching(target) && cBitmap.getBitmap() != null) {
             Drawable[] drawables = new Drawable[]{
-                    PodcastApp.getInstance().getResources().getDrawable(android.R.color.transparent),
-                    new BitmapDrawable(PodcastApp.getInstance().getResources(), cBitmap.getBitmap())
+                    PodcastApp.getAppContext().getResources().getDrawable(android.R.color.transparent),
+                    new BitmapDrawable(PodcastApp.getAppContext().getResources(), cBitmap.getBitmap())
             };
             TransitionDrawable transitionDrawable = new TransitionDrawable(drawables);
             target.setImageDrawable(transitionDrawable);

src/de/danoeh/antennapod/asynctask/ImageDiskCache.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.asynctask;
 
 import android.os.Handler;
@@ -37,7 +38,7 @@ public static synchronized ImageDiskCache getDefaultInstance() {
         final String DEFAULT_PATH = "imagecache";
         final long DEFAULT_MAX_CACHE_SIZE = 10 * 1024 * 1024;
 
-        File cacheDir = PodcastApp.getInstance().getExternalCacheDir();
+        File cacheDir = PodcastApp.getAppContext().getExternalCacheDir();
         if (cacheDir == null) {
             return null;
         }

src/de/danoeh/antennapod/asynctask/ImageLoader.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.asynctask;
 
 import android.annotation.SuppressLint;
@@ -40,7 +41,7 @@ public class ImageLoader {
      * the FeedImage the bitmap belongs to.
      */
 
-    final int memClass = ((ActivityManager) PodcastApp.getInstance()
+    final int memClass = ((ActivityManager) PodcastApp.getAppContext()
             .getSystemService(Context.ACTIVITY_SERVICE)).getMemoryClass();
 
     // Use 1/8th of the available memory for this memory cache.

src/de/danoeh/antennapod/feed/FeedItem.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.feed;
 
 import de.danoeh.antennapod.PodcastApp;
@@ -253,7 +254,7 @@ public Callable<String> loadShownotes() {
             public String call() throws Exception {
 
                 if (contentEncoded == null || description == null) {
-                    DBReader.loadExtraInformationOfFeedItem(PodcastApp.getInstance(), FeedItem.this);
+                    DBReader.loadExtraInformationOfFeedItem(PodcastApp.getAppContext(), FeedItem.this);
 
                 }
                 return (contentEncoded != null) ? contentEncoded : description;

src/de/danoeh/antennapod/feed/FeedMedia.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.feed;
 
 import android.content.SharedPreferences;
@@ -239,7 +240,7 @@ public void writeToPreferences(Editor prefEditor) {
     @Override
     public void loadMetadata() throws PlayableException {
         if (item == null && itemID != 0) {
-            item = DBReader.getFeedItem(PodcastApp.getInstance(), itemID);
+            item = DBReader.getFeedItem(PodcastApp.getAppContext(), itemID);
         }
     }
 
@@ -248,7 +249,7 @@ public void loadChapterMarks() {
         if (getChapters() == null && !localFileAvailable()) {
             ChapterUtils.loadChaptersFromStreamUrl(this);
             if (getChapters() != null && item != null) {
-                DBWriter.setFeedItem(PodcastApp.getInstance(),
+                DBWriter.setFeedItem(PodcastApp.getAppContext(),
                         item);
             }
         }
@@ -327,7 +328,7 @@ public boolean streamAvailable() {
     @Override
     public void saveCurrentPosition(SharedPreferences pref, int newPosition) {
         setPosition(newPosition);
-        DBWriter.setFeedMediaPlaybackInformation(PodcastApp.getInstance(), this);
+        DBWriter.setFeedMediaPlaybackInformation(PodcastApp.getAppContext(), this);
     }
 
     @Override
@@ -355,10 +356,10 @@ public Callable<String> loadShownotes() {
             @Override
             public String call() throws Exception {
                 if (item == null) {
-                    item = DBReader.getFeedItem(PodcastApp.getInstance(), itemID);
+                    item = DBReader.getFeedItem(PodcastApp.getAppContext(), itemID);
                 }
                 if (item.getContentEncoded() == null || item.getDescription() == null) {
-                    DBReader.loadExtraInformationOfFeedItem(PodcastApp.getInstance(), item);
+                    DBReader.loadExtraInformationOfFeedItem(PodcastApp.getAppContext(), item);
 
                 }
                 return (item.getContentEncoded() != null) ? item.getContentEncoded() : item.getDescription();

src/de/danoeh/antennapod/preferences/GpodnetPreferences.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.preferences;
 
 import android.content.Context;
@@ -48,7 +49,7 @@ public class GpodnetPreferences {
     private static boolean preferencesLoaded = false;
 
     private static SharedPreferences getPreferences() {
-        return PodcastApp.getInstance().getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
+        return PodcastApp.getAppContext().getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
     }
 
     private static synchronized void ensurePreferencesLoaded() {
@@ -148,7 +149,7 @@ public static void addAddedFeed(String feed) {
             writePreference(PREF_SYNC_REMOVED, removedFeeds);
         }
         feedListLock.unlock();
-        GpodnetSyncService.sendSyncIntent(PodcastApp.getInstance());
+        GpodnetSyncService.sendSyncIntent(PodcastApp.getAppContext());
     }
 
     public static void addRemovedFeed(String feed) {
@@ -161,7 +162,7 @@ public static void addRemovedFeed(String feed) {
             writePreference(PREF_SYNC_ADDED, addedFeeds);
         }
         feedListLock.unlock();
-        GpodnetSyncService.sendSyncIntent(PodcastApp.getInstance());
+        GpodnetSyncService.sendSyncIntent(PodcastApp.getAppContext());
     }
 
     public static Set<String> getAddedFeedsCopy() {

src/de/danoeh/antennapod/service/download/Downloader.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.service.download;
 
 import android.content.Context;
@@ -29,7 +30,7 @@ public Downloader(DownloadRequest request) {
 	protected abstract void download();
 
 	public final Downloader call() {
-        WifiManager wifiManager = (WifiManager) PodcastApp.getInstance().getSystemService(Context.WIFI_SERVICE);
+        WifiManager wifiManager = (WifiManager) PodcastApp.getAppContext().getSystemService(Context.WIFI_SERVICE);
         WifiManager.WifiLock wifiLock = null;
         if (wifiManager != null) {
             wifiLock = wifiManager.createWifiLock(TAG);
@@ -66,4 +67,4 @@ public void cancel() {
 		cancelled = true;
 	}
 
-}
+}

src/de/danoeh/antennapod/service/download/HttpDownloader.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.service.download;
 
 import android.net.http.AndroidHttpClient;
@@ -104,7 +105,7 @@ protected void download() {
                 return;
             }
 
-            if (!StorageUtils.storageAvailable(PodcastApp.getInstance())) {
+            if (!StorageUtils.storageAvailable(PodcastApp.getAppContext())) {
                 onFail(DownloadError.ERROR_DEVICE_NOT_FOUND, null);
                 return;
             }

src/de/danoeh/antennapod/service/playback/PlaybackService.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.service.playback;
 
 import android.annotation.SuppressLint;
@@ -758,7 +759,7 @@ private synchronized void saveCurrentPosition(boolean updatePlayedDuration, int
                         Log.d(TAG, "saveCurrentPosition: performing auto flattr since played duration " + Integer.toString(m.getPlayedDuration())
                                 + " is " + UserPreferences.getPlayedDurationAutoflattrThreshold() * 100 + "% of file duration " + Integer.toString(duration));
                     item.getFlattrStatus().setFlattrQueue();
-                    DBWriter.setFeedItemFlattrStatus(PodcastApp.getInstance(), item, false);
+                    DBWriter.setFeedItemFlattrStatus(PodcastApp.getAppContext(), item, false);
                 }
             }
             playable.saveCurrentPosition(PreferenceManager

src/de/danoeh/antennapod/util/StorageUtils.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.util;
 
 import android.app.Activity;
@@ -51,7 +52,7 @@ public static boolean checkStorageAvailability(Activity activity) {
 	/** Get the number of free bytes that are available on the external storage. */
 	public static long getFreeSpaceAvailable() {
 		StatFs stat = new StatFs(UserPreferences.getDataFolder(
-				PodcastApp.getInstance(), null).getAbsolutePath());
+				PodcastApp.getAppContext(), null).getAbsolutePath());
         long availableBlocks;
         long blockSize;
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {

src/de/danoeh/antennapod/util/flattr/FlattrUtils.java

@@ -1,3 +1,4 @@
+// The files and modifications provided by Facebook are for testing and evaluation purposes only.  Facebook reserves all rights not expressly granted.
 package de.danoeh.antennapod.util.flattr;
 
 import android.app.AlertDialog;
@@ -59,7 +60,7 @@ private static AccessToken retrieveToken() {
 			if (BuildConfig.DEBUG)
 				Log.d(TAG, "Retrieving access token");
 			String token = PreferenceManager.getDefaultSharedPreferences(
-					PodcastApp.getInstance())
+					PodcastApp.getAppContext())
 					.getString(PREF_ACCESS_TOKEN, null);
 			if (token != null) {
 				if (BuildConfig.DEBUG)
@@ -83,7 +84,7 @@ public static void storeToken(AccessToken token) {
 		if (BuildConfig.DEBUG)
 			Log.d(TAG, "Storing token");
 		SharedPreferences.Editor editor = PreferenceManager
-				.getDefaultSharedPreferences(PodcastApp.getInstance()).edit();
+				.getDefaultSharedPreferences(PodcastApp.getAppContext()).edit();
 		if (token != null) {
 			editor.putString(PREF_ACCESS_TOKEN, token.getToken());
 		} else {
@@ -271,4 +272,4 @@ public void onClick(DialogInterface dialog, int which) {
 		builder.create().show();
 	}
 
-}
+}