From 3a5e5f96a67635e8d42f8503c8a124e1367a1505 Mon Sep 17 00:00:00 2001
From: Robot Media <github@robotmedia.net>
Date: Wed, 13 Jul 2011 13:07:47 +0200
Subject: [PATCH] Closes #17. Closes #13. Closes #6.

---
 .../robotmedia/billing/BillingController.java |  24 +-
 .../robotmedia/billing/BillingService.java    |   5 +-
 .../robotmedia/billing/IBillingObserver.java  |   5 +
 .../robotmedia/billing/model/Transaction.java |   4 +-
 .../billing/request/BillingRequest.java       |  71 +++---
 .../request/CheckBillingSupported.java        |   3 -
 .../billing/request/ConfirmNotifications.java |   3 -
 .../request/GetPurchaseInformation.java       |   4 -
 .../billing/request/RestoreTransactions.java  |  14 +-
 .../billing/utils/Compatibility.java          |  11 +-
 .../billing/BillingControllerTest.java        |  28 +++
 .../billing/MockBillingActivity.java          |   5 +
 .../billing/utils/CompatibilityTest.java      |  14 ++
 DungeonsRedux/.classpath                      |   8 +
 DungeonsRedux/.gitignore                      |   2 +
 DungeonsRedux/.project                        |  40 ++++
 DungeonsRedux/AndroidManifest.xml             |  30 +++
 DungeonsRedux/README                          |  56 +++++
 DungeonsRedux/default.properties              |  12 +
 DungeonsRedux/res/drawable-hdpi/icon.png      | Bin 0 -> 4432 bytes
 DungeonsRedux/res/drawable-ldpi/icon.png      | Bin 0 -> 1502 bytes
 DungeonsRedux/res/drawable-mdpi/icon.png      | Bin 0 -> 2591 bytes
 DungeonsRedux/res/layout/item_row.xml         |  32 +++
 DungeonsRedux/res/layout/main.xml             |  74 ++++++
 DungeonsRedux/res/values/colors.xml           |  23 ++
 DungeonsRedux/res/values/strings.xml          |  42 ++++
 .../billing/example/CatalogAdapter.java       |  72 ++++++
 .../billing/example/CatalogEntry.java         |  28 +++
 .../robotmedia/billing/example/Dungeons.java  | 210 ++++++++++++++++++
 README.mdown                                  |   2 +-
 30 files changed, 767 insertions(+), 55 deletions(-)
 create mode 100644 AndroidBillingLibraryTest/src/net/robotmedia/billing/utils/CompatibilityTest.java
 create mode 100644 DungeonsRedux/.classpath
 create mode 100644 DungeonsRedux/.gitignore
 create mode 100644 DungeonsRedux/.project
 create mode 100644 DungeonsRedux/AndroidManifest.xml
 create mode 100755 DungeonsRedux/README
 create mode 100644 DungeonsRedux/default.properties
 create mode 100644 DungeonsRedux/res/drawable-hdpi/icon.png
 create mode 100644 DungeonsRedux/res/drawable-ldpi/icon.png
 create mode 100644 DungeonsRedux/res/drawable-mdpi/icon.png
 create mode 100644 DungeonsRedux/res/layout/item_row.xml
 create mode 100644 DungeonsRedux/res/layout/main.xml
 create mode 100644 DungeonsRedux/res/values/colors.xml
 create mode 100644 DungeonsRedux/res/values/strings.xml
 create mode 100644 DungeonsRedux/src/net/robotmedia/billing/example/CatalogAdapter.java
 create mode 100644 DungeonsRedux/src/net/robotmedia/billing/example/CatalogEntry.java
 create mode 100644 DungeonsRedux/src/net/robotmedia/billing/example/Dungeons.java

diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/BillingController.java b/AndroidBillingLibrary/src/net/robotmedia/billing/BillingController.java
index 430ea83..61e898f 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/BillingController.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/BillingController.java
@@ -29,6 +29,7 @@
 import net.robotmedia.billing.model.TransactionManager;
 import net.robotmedia.billing.request.BillingRequest;
 import net.robotmedia.billing.request.ResponseCode;
+import net.robotmedia.billing.request.RestoreTransactions;
 import net.robotmedia.billing.utils.Compatibility;
 import net.robotmedia.billing.utils.Security;
 
@@ -427,6 +428,8 @@ protected static void onPurchaseStateChanged(Context context, String signedData,
 		}
 	}
 
+	private static HashMap<Long, BillingRequest> pendingRequests = new HashMap<Long, BillingRequest>();
+	
 	/**
 	 * Called after a {@link net.robotmedia.billing.request.BillingRequest} is
 	 * sent.
@@ -440,14 +443,16 @@ protected static void onRequestSent(long requestId, BillingRequest request) {
 		if (debug) {
 			Log.d(BillingController.class.getSimpleName(), "Request " + requestId + " of type " + request.getRequestType() + " sent");
 		}
-		if (!request.isSuccess() && request.hasNonce()) {
+		if (request.isSuccess()) {
+			pendingRequests.put(requestId, request);
+		} else if (request.hasNonce()) {
 			Security.removeNonce(request.getNonce());
 		}
 	}
 
 	/**
 	 * Called after a {@link net.robotmedia.billing.request.BillingRequest} is
-	 * sent. Mostly used for debugging purposes.
+	 * sent.
 	 * 
 	 * @param context
 	 * @param requestId
@@ -460,6 +465,11 @@ protected static void onResponseCode(Context context, long requestId, int respon
 		if (debug) {
 			Log.d(BillingController.class.getSimpleName(), "Request " + requestId + " received response " + ResponseCode.valueOf(responseCode));
 		}
+		final BillingRequest request = pendingRequests.get(requestId);
+		if (request != null) {
+			pendingRequests.remove(requestId);
+			request.onResponseCode(responseCode);
+		}
 	}
 
 	/**
@@ -639,4 +649,14 @@ private static boolean verifyNonce(JSONObject data) {
 		}
 	}
 
+	/**
+	 * 
+	 * @param restoreTransactions
+	 */
+	public static void onTransactionsRestored(RestoreTransactions restoreTransactions) {
+		for (IBillingObserver o : observers) {
+			o.onTransactionsRestored();
+		}		
+	}
+
 }
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/BillingService.java b/AndroidBillingLibrary/src/net/robotmedia/billing/BillingService.java
index 6438520..a217cea 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/BillingService.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/BillingService.java
@@ -23,6 +23,7 @@
 import net.robotmedia.billing.request.RequestPurchase;
 import net.robotmedia.billing.request.RestoreTransactions;
 import net.robotmedia.billing.request.BillingRequest;
+import net.robotmedia.billing.utils.Compatibility;
 
 import com.android.vending.billing.IMarketBillingService;
 
@@ -163,10 +164,10 @@ public void onStart(Intent intent, int startId) {
 	    handleCommand(intent);
 	}
 
-	@Override
+	// @Override // Avoid compile errors on pre-2.0
 	public int onStartCommand(Intent intent, int flags, int startId) {
 	    handleCommand(intent);
-	    return START_NOT_STICKY;
+	    return Compatibility.START_NOT_STICKY;
 	}
 	
 	private void handleCommand(Intent intent) {
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/IBillingObserver.java b/AndroidBillingLibrary/src/net/robotmedia/billing/IBillingObserver.java
index 2dbadc9..f8b8380 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/IBillingObserver.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/IBillingObserver.java
@@ -55,4 +55,9 @@ public interface IBillingObserver {
 	 */
 	public void onPurchaseRefunded(String itemId);
 
+	/**
+	 * Called after a restore transactions request has been successfully received by the server. 
+	 */
+	public void onTransactionsRestored();
+
 }
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/model/Transaction.java b/AndroidBillingLibrary/src/net/robotmedia/billing/model/Transaction.java
index f81e173..54f2daa 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/model/Transaction.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/model/Transaction.java
@@ -22,8 +22,8 @@ public class Transaction {
 
     public enum PurchaseState {
         // Responses to requestPurchase or restoreTransactions.
-    	PURCHASED,    // 0: The charge failed on the server.
-        CANCELLED,   // 1: User was charged for the order.
+    	PURCHASED,    // 0: User was charged for the order.
+        CANCELLED,   // 1: The charge failed on the server.
     	REFUNDED;    // 2: User received a refund for the order.
 
         // Converts from an ordinal value to the PurchaseState
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/request/BillingRequest.java b/AndroidBillingLibrary/src/net/robotmedia/billing/request/BillingRequest.java
index b7d5b65..45a254c 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/request/BillingRequest.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/request/BillingRequest.java
@@ -27,33 +27,53 @@ public abstract class BillingRequest {
     private static final String KEY_API_VERSION = "API_VERSION";
     private static final String KEY_PACKAGE_NAME = "PACKAGE_NAME";
     private static final String KEY_RESPONSE_CODE = "RESPONSE_CODE";
-    private static final String KEY_REQUEST_ID = "REQUEST_ID";
+    protected static final String KEY_REQUEST_ID = "REQUEST_ID";
 	private static final String KEY_NONCE = "NONCE";
     public static final long IGNORE_REQUEST_ID = -1;
 	
-    public abstract String getRequestType();
-    protected abstract void addParams(Bundle request);
-    protected abstract void processOkResponse(Bundle response);
+    private String packageName;
+    private boolean success;
+    private long nonce;
     
-    public boolean hasNonce() {
-    	return false;
+    public BillingRequest(String packageName) {
+    	this.packageName = packageName;
     }
         
-    private String packageName;
-    private boolean success;
-	private long nonce;	
+    protected void addParams(Bundle request) {
+    	// Do nothing by default
+    }
     
     public long getNonce() {
 		return nonce;
 	}
-	public void setNonce(long nonce) {
-		this.nonce = nonce;
-	}
-	public BillingRequest(String packageName) {
-    	this.packageName = packageName;
+	public abstract String getRequestType();	
+    
+    public boolean hasNonce() {
+    	return false;
+    }
+	public boolean isSuccess() {
+    	return success;
+    }
+	protected Bundle makeRequestBundle() {
+        final Bundle request = new Bundle();
+        request.putString(KEY_BILLING_REQUEST, getRequestType());
+        request.putInt(KEY_API_VERSION, 1);
+        request.putString(KEY_PACKAGE_NAME, packageName);
+        if (hasNonce()) {
+    		request.putLong(KEY_NONCE, nonce);
+        }
+        return request;
     }
     
-	public long run(IMarketBillingService mService) throws RemoteException {
+	public void onResponseCode(int responseCode) {
+    	// Do nothing by default
+	}
+
+    protected void processOkResponse(Bundle response) {    	
+    	// Do nothing by default
+    }
+	
+    public long run(IMarketBillingService mService) throws RemoteException {
         final Bundle request = makeRequestBundle();
         addParams(request);
         final Bundle response = mService.sendBillingRequest(request);
@@ -64,18 +84,11 @@ public long run(IMarketBillingService mService) throws RemoteException {
         	return IGNORE_REQUEST_ID;
         }
 	}
-
-    protected Bundle makeRequestBundle() {
-        final Bundle request = new Bundle();
-        request.putString(KEY_BILLING_REQUEST, getRequestType());
-        request.putInt(KEY_API_VERSION, 1);
-        request.putString(KEY_PACKAGE_NAME, packageName);
-        if (hasNonce()) {
-    		request.putLong(KEY_NONCE, nonce);
-        }
-        return request;
-    }
-	
+    
+    public void setNonce(long nonce) {
+		this.nonce = nonce;
+	}
+    
     protected boolean validateResponse(Bundle response) {
     	final int responseCode = response.getInt(KEY_RESPONSE_CODE);
     	success = ResponseCode.isResponseOk(responseCode);
@@ -85,8 +98,4 @@ protected boolean validateResponse(Bundle response) {
     	return success;
     }
     
-    public boolean isSuccess() {
-    	return success;
-    }
-    
 }
\ No newline at end of file
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/request/CheckBillingSupported.java b/AndroidBillingLibrary/src/net/robotmedia/billing/request/CheckBillingSupported.java
index c4b773b..05fb7ed 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/request/CheckBillingSupported.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/request/CheckBillingSupported.java
@@ -29,9 +29,6 @@ public String getRequestType() {
 		return "CHECK_BILLING_SUPPORTED";
 	}
 
-	@Override
-	protected void addParams(Bundle request) {}
-
 	@Override
 	protected void processOkResponse(Bundle response) {
 		final boolean supported = this.isSuccess();
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/request/ConfirmNotifications.java b/AndroidBillingLibrary/src/net/robotmedia/billing/request/ConfirmNotifications.java
index c10eaed..0034ece 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/request/ConfirmNotifications.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/request/ConfirmNotifications.java
@@ -37,8 +37,5 @@ public String getRequestType() {
 	protected void addParams(Bundle request) {
 		request.putStringArray(KEY_NOTIFY_IDS, notifyIds);
 	}
-
-	@Override
-	protected void processOkResponse(Bundle response) {}
 	
 }
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/request/GetPurchaseInformation.java b/AndroidBillingLibrary/src/net/robotmedia/billing/request/GetPurchaseInformation.java
index 1feab1b..b602c72 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/request/GetPurchaseInformation.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/request/GetPurchaseInformation.java
@@ -39,9 +39,5 @@ public String getRequestType() {
 	protected void addParams(Bundle request) {
 		request.putStringArray(KEY_NOTIFY_IDS, notifyIds);
 	}
-
-	@Override
-	protected void processOkResponse(Bundle response) {
-	}
 	
 }
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/request/RestoreTransactions.java b/AndroidBillingLibrary/src/net/robotmedia/billing/request/RestoreTransactions.java
index 36a6238..12cd522 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/request/RestoreTransactions.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/request/RestoreTransactions.java
@@ -15,7 +15,7 @@
 
 package net.robotmedia.billing.request;
 
-import android.os.Bundle;
+import net.robotmedia.billing.BillingController;
 
 public class RestoreTransactions extends BillingRequest {
 	
@@ -29,11 +29,13 @@ public RestoreTransactions(String packageName) {
 	public String getRequestType() {
 		return "RESTORE_TRANSACTIONS";
 	}
-
-	@Override
-	protected void addParams(Bundle request) {}
-
+	
 	@Override
-	protected void processOkResponse(Bundle response) {}
+	public void onResponseCode(int responseCode) {
+		super.onResponseCode(responseCode);
+		if (ResponseCode.isResponseOk(responseCode)) {
+			BillingController.onTransactionsRestored(this);
+		}
+	}
 	
 }
diff --git a/AndroidBillingLibrary/src/net/robotmedia/billing/utils/Compatibility.java b/AndroidBillingLibrary/src/net/robotmedia/billing/utils/Compatibility.java
index 40f1f10..9942636 100644
--- a/AndroidBillingLibrary/src/net/robotmedia/billing/utils/Compatibility.java
+++ b/AndroidBillingLibrary/src/net/robotmedia/billing/utils/Compatibility.java
@@ -15,15 +15,18 @@
 
 package net.robotmedia.billing.utils;
 
+import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 
 import android.app.Activity;
+import android.app.Service;
 import android.content.Intent;
 import android.content.IntentSender;
 import android.util.Log;
 
 public class Compatibility {
     private static Method startIntentSender;
+    public static int START_NOT_STICKY;
     @SuppressWarnings("rawtypes")
 	private static final Class[] START_INTENT_SENDER_SIG = new Class[] {
         IntentSender.class, Intent.class, int.class, int.class, int.class
@@ -34,7 +37,13 @@ public class Compatibility {
 	};
 
 	private static void initCompatibility() {
-        try {
+		try {
+			final Field field = Service.class.getField("START_NOT_STICKY");
+			START_NOT_STICKY = field.getInt(null);
+		} catch (Exception e) {
+			START_NOT_STICKY = 2;			
+		}
+		try {
         	startIntentSender = Activity.class.getMethod("startIntentSender",
                     START_INTENT_SENDER_SIG);
         } catch (SecurityException e) {
diff --git a/AndroidBillingLibraryTest/src/net/robotmedia/billing/BillingControllerTest.java b/AndroidBillingLibraryTest/src/net/robotmedia/billing/BillingControllerTest.java
index 570656c..87ff194 100644
--- a/AndroidBillingLibraryTest/src/net/robotmedia/billing/BillingControllerTest.java
+++ b/AndroidBillingLibraryTest/src/net/robotmedia/billing/BillingControllerTest.java
@@ -15,14 +15,19 @@
 
 package net.robotmedia.billing;
 
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 import net.robotmedia.billing.model.BillingDB;
 import net.robotmedia.billing.model.BillingDBTest;
 import net.robotmedia.billing.model.Transaction;
 import net.robotmedia.billing.model.TransactionTest;
+import net.robotmedia.billing.request.RestoreTransactions;
+import android.app.PendingIntent;
 import android.test.AndroidTestCase;
 import android.test.suitebuilder.annotation.MediumTest;
+import android.test.suitebuilder.annotation.SmallTest;
 
 public class BillingControllerTest extends AndroidTestCase {
 
@@ -99,4 +104,27 @@ public void testGetTransactionsString() throws Exception {
 		final List<Transaction> transactions2 = BillingController.getTransactions(getContext(), TransactionTest.TRANSACTION_1.productId);
 		assertEquals(transactions2.size(), 1);
 	}
+	
+	@SmallTest
+	public void testOnTransactionRestored() throws Exception {
+		final Set<Boolean> flags = new HashSet<Boolean>();
+		final IBillingObserver observer = new IBillingObserver() {
+			
+			@Override
+			public void onTransactionsRestored() {
+				flags.add(true);
+			}
+			
+			public void onPurchaseRefunded(String itemId) {}
+			public void onPurchaseIntent(String itemId, PendingIntent purchaseIntent) {}
+			public void onPurchaseExecuted(String itemId) {}
+			public void onPurchaseCancelled(String itemId) {}
+			public void onBillingChecked(boolean supported) {}
+		};
+		BillingController.registerObserver(observer);
+		final RestoreTransactions request = new RestoreTransactions(getContext().getPackageName());
+		BillingController.onTransactionsRestored(request);
+		assertEquals(flags.size(), 1);
+		BillingController.unregisterObserver(observer);
+	}
 }
diff --git a/AndroidBillingLibraryTest/src/net/robotmedia/billing/MockBillingActivity.java b/AndroidBillingLibraryTest/src/net/robotmedia/billing/MockBillingActivity.java
index 0bf1388..7069753 100644
--- a/AndroidBillingLibraryTest/src/net/robotmedia/billing/MockBillingActivity.java
+++ b/AndroidBillingLibraryTest/src/net/robotmedia/billing/MockBillingActivity.java
@@ -53,4 +53,9 @@ public String getPublicKey() {
 		return null;
 	}
 
+	@Override
+	public void onTransactionsRestored() {
+		// TODO Auto-generated method stub
+	}
+
 }
diff --git a/AndroidBillingLibraryTest/src/net/robotmedia/billing/utils/CompatibilityTest.java b/AndroidBillingLibraryTest/src/net/robotmedia/billing/utils/CompatibilityTest.java
new file mode 100644
index 0000000..24448c8
--- /dev/null
+++ b/AndroidBillingLibraryTest/src/net/robotmedia/billing/utils/CompatibilityTest.java
@@ -0,0 +1,14 @@
+package net.robotmedia.billing.utils;
+
+import android.app.Service;
+import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+public class CompatibilityTest extends AndroidTestCase {
+	
+	@SmallTest
+	public void testStartNotSticky() throws Exception {
+		assertEquals(Compatibility.START_NOT_STICKY, Service.START_NOT_STICKY);
+	}
+
+}
diff --git a/DungeonsRedux/.classpath b/DungeonsRedux/.classpath
new file mode 100644
index 0000000..430cfd8
--- /dev/null
+++ b/DungeonsRedux/.classpath
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="gen"/>
+	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
+	<classpathentry kind="src" path="AndroidBillingLibrary_src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/DungeonsRedux/.gitignore b/DungeonsRedux/.gitignore
new file mode 100644
index 0000000..703f4e4
--- /dev/null
+++ b/DungeonsRedux/.gitignore
@@ -0,0 +1,2 @@
+bin
+gen
\ No newline at end of file
diff --git a/DungeonsRedux/.project b/DungeonsRedux/.project
new file mode 100644
index 0000000..d02b7a2
--- /dev/null
+++ b/DungeonsRedux/.project
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>DungeonsRedux</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.android.ide.eclipse.adt.ApkBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+	<linkedResources>
+		<link>
+			<name>AndroidBillingLibrary_src</name>
+			<type>2</type>
+			<locationURI>_android_AndroidBillingLibrary_70afcdef/src</locationURI>
+		</link>
+	</linkedResources>
+</projectDescription>
diff --git a/DungeonsRedux/AndroidManifest.xml b/DungeonsRedux/AndroidManifest.xml
new file mode 100644
index 0000000..014a946
--- /dev/null
+++ b/DungeonsRedux/AndroidManifest.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+	android:versionCode="1" android:versionName="1.0"
+	package="net.robotmedia.billing.example">
+
+    <!-- Add this permission to your manifest -->
+	<uses-permission android:name="com.android.vending.BILLING" />
+
+	<application android:icon="@drawable/icon" android:label="@string/app_name">
+		<activity android:name=".Dungeons" android:label="@string/app_name">
+			<intent-filter>
+				<action android:name="android.intent.action.MAIN" />
+				<category android:name="android.intent.category.LAUNCHER" />
+			</intent-filter>
+		</activity>
+
+    	<!-- Add this service and receiver to your application -->
+		<service android:name="net.robotmedia.billing.BillingService" />
+		<receiver android:name="net.robotmedia.billing.BillingReceiver">
+			<intent-filter>
+				<action android:name="com.android.vending.billing.IN_APP_NOTIFY" />
+				<action android:name="com.android.vending.billing.RESPONSE_CODE" />
+				<action android:name="com.android.vending.billing.PURCHASE_STATE_CHANGED" />
+			</intent-filter>
+		</receiver>
+
+	</application>
+	<uses-sdk android:minSdkVersion="4" />
+
+</manifest>
diff --git a/DungeonsRedux/README b/DungeonsRedux/README
new file mode 100755
index 0000000..7bd7bab
--- /dev/null
+++ b/DungeonsRedux/README
@@ -0,0 +1,56 @@
+This package contains a sample app -Dungeons Redux- that shows how to use the Android Billing 
+Library (https://github.com/robotmedia/AndroidBillingLibrary). It does not intend to be an 
+example of how to use in-app billing in general.
+
+Dungeons Redux is a simplified version of the Dungeons sample app provided by Google.
+
+-------------------------------------
+Configuring the sample application
+-------------------------------------
+
+Before you can run the sample application, you need to add your Android Market public key to the
+sample application code. This enables the application to verify the signature of the transaction
+information that's returned from Android Market. To add your public key to the sample application
+code, do the following:
+
+1. Log in to your Android Market publisher account (http://market.android.com/publish).
+2. On the upper left part of the page, under your name, click Edit Profile.
+3. On the Edit Profile page, scroll down to the Licensing & In-app Billing panel.
+4. Copy your public key to the clipboard.
+5. Open src/net/robotmedia/billing/example/Dungeons.java in the editor of your choice.
+6. Search for the following line:
+   return "your public key here";
+7. Replace the string with your public key.
+8. Save the file.
+
+After you add your public key to the Dungeons.java file, you can compile the application as you
+normally would.
+
+-------------------------------------
+Running the sample application
+-------------------------------------
+
+You cannot run the sample application in the emulator. You must load the application onto a device
+to run it.
+
+In-app billing requires version 2.3.0 of the Android Market application. To run the sample
+application you must have this version (or a newer version) installed on your device. You can check
+the version of the Android Market application by doing the following:
+
+1. Open Settings on your device and touch Applications.
+2. In Application Settings, touch Manage applications.
+3. Touch All to list all applications.
+4. Scroll down and touch the Market application.
+5. The version number appears under Market at the top of the screen.
+
+-------------------------------------
+Additional information and resources
+-------------------------------------
+
+To learn more about the in-app billing service, see the online documentation:
+
+	http://developer.android.com/guide/market/billing/index.html
+
+To learn more about Android Billing Library, see:
+
+	https://github.com/robotmedia/AndroidBillingLibrary
\ No newline at end of file
diff --git a/DungeonsRedux/default.properties b/DungeonsRedux/default.properties
new file mode 100644
index 0000000..4271070
--- /dev/null
+++ b/DungeonsRedux/default.properties
@@ -0,0 +1,12 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+# 
+# This file must be checked in Version Control Systems.
+# 
+# To customize properties used by the Ant build system use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-4
+android.library.reference.1=../AndroidBillingLibrary
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diff --git a/DungeonsRedux/res/layout/item_row.xml b/DungeonsRedux/res/layout/item_row.xml
new file mode 100644
index 0000000..9accc5f
--- /dev/null
+++ b/DungeonsRedux/res/layout/item_row.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:background="@color/screen_background">
+    <TextView
+        android:id="@+id/item_name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:paddingLeft="10dip"
+        android:layout_alignParentLeft="true"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:textColor="@android:color/black" />
+</RelativeLayout>
diff --git a/DungeonsRedux/res/layout/main.xml b/DungeonsRedux/res/layout/main.xml
new file mode 100644
index 0000000..40a2b9a
--- /dev/null
+++ b/DungeonsRedux/res/layout/main.xml
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:paddingLeft="4dip"
+    android:paddingRight="4dip"
+    android:background="@color/screen_background">
+
+    <TextView
+        android:id="@+id/billing_supported"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/error_message" />
+
+    <TextView
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="10dip"
+        android:textColor="@android:color/black"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:textStyle="bold"
+        android:text="@string/items_for_sale" />
+
+    <LinearLayout
+        android:orientation="horizontal"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content">
+        <Button
+            android:id="@+id/buy_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/buy" />
+        <Spinner
+            android:id="@+id/item_choices"
+            android:layout_width="0dip"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:prompt="@string/select_item" />
+    </LinearLayout>
+    <TextView
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="10dip"
+        android:textColor="@android:color/black"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:textStyle="bold"
+        android:text="@string/items_you_own" />
+    <ListView
+        android:id="@+id/owned_items"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="4dip"
+        android:paddingBottom="4dip">
+    </ListView>
+</LinearLayout>
diff --git a/DungeonsRedux/res/values/colors.xml b/DungeonsRedux/res/values/colors.xml
new file mode 100644
index 0000000..1b08c48
--- /dev/null
+++ b/DungeonsRedux/res/values/colors.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+
+<resources>
+    <color name="screen_background">#ffc0f0c0</color>
+    <color name="error_message">#ffc00000</color>
+</resources>
diff --git a/DungeonsRedux/res/values/strings.xml b/DungeonsRedux/res/values/strings.xml
new file mode 100644
index 0000000..f158e0d
--- /dev/null
+++ b/DungeonsRedux/res/values/strings.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+
+<resources>
+    <string name="welcome">Welcome to the Sample store!</string>
+    <string name="app_name">Dungeons Redux</string>
+    <string name="billing_not_supported_title">Can\'t make purchases</string>
+    <string name="billing_not_supported_message">The Market billing
+     service is not available at this time.  You can continue to use this app but you
+     won\'t be able to make purchases.</string>
+    <string name="restoring_transactions">Restoring transactions</string>
+    <string name="buy">Buy</string>
+    <string name="select_item">Select an item</string>
+    <string name="items_for_sale">Items for sale</string>
+    <string name="items_you_own">Items you own</string>
+    <string name="recent_transactions">Recent activity</string>
+
+    <string name="two_handed_sword">Two-handed sword</string>
+    <string name="potions">Potions</string>
+
+    <!-- The following are reserved skus defined by Market for testing. -->
+    <string name="android_test_canceled">android.test.canceled</string>
+    <string name="android_test_purchased">android.test.purchased</string>
+    <string name="android_test_item_unavailable">android.test.item unavailable</string>
+    <string name="android_test_refunded">android.test.refunded</string>
+</resources>
diff --git a/DungeonsRedux/src/net/robotmedia/billing/example/CatalogAdapter.java b/DungeonsRedux/src/net/robotmedia/billing/example/CatalogAdapter.java
new file mode 100644
index 0000000..9e7cd5f
--- /dev/null
+++ b/DungeonsRedux/src/net/robotmedia/billing/example/CatalogAdapter.java
@@ -0,0 +1,72 @@
+package net.robotmedia.billing.example;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import net.robotmedia.billing.example.CatalogEntry.Managed;
+
+import android.content.Context;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+
+/**
+ * An adapter used for displaying a catalog of products. If a product is
+ * managed by Android Market and already purchased, then it will be
+ * "grayed-out" in the list and not selectable.
+ */
+public class CatalogAdapter extends ArrayAdapter<String> {
+	
+	private CatalogEntry[] mCatalog;
+	private List<String> mOwnedItems = new ArrayList<String>();
+
+	public CatalogAdapter(Context context, CatalogEntry[] catalog) {
+		super(context, android.R.layout.simple_spinner_item);
+		mCatalog = catalog;
+		for (CatalogEntry element : catalog) {
+			add(context.getString(element.nameId));
+		}
+		setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+	}
+
+	@Override
+	public boolean areAllItemsEnabled() {
+		// Return false to have the adapter call isEnabled()
+		return false;
+	}
+
+	@Override
+	public View getDropDownView(int position, View convertView, ViewGroup parent) {
+		// If the item at the given list position is not purchasable, then
+		// "gray out" the list item.
+		View view = super.getDropDownView(position, convertView, parent);
+		view.setEnabled(isEnabled(position));
+		return view;
+	}
+	
+	private boolean isPurchased(String sku) {
+		for (int i = 0; i < mOwnedItems.size(); i++) {
+			if (sku.equals(mOwnedItems.get(i))) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	@Override
+	public boolean isEnabled(int position) {
+		// If the item at the given list position is not purchasable,
+		// then prevent the list item from being selected.
+		CatalogEntry entry = mCatalog[position];
+		if (entry.managed == Managed.MANAGED && isPurchased(entry.sku)) {
+			return false;
+		}
+		return true;
+	}
+
+	public void setOwnedItems(List<String> ownedItems) {
+		mOwnedItems = ownedItems;
+		notifyDataSetChanged();
+	}
+
+}
diff --git a/DungeonsRedux/src/net/robotmedia/billing/example/CatalogEntry.java b/DungeonsRedux/src/net/robotmedia/billing/example/CatalogEntry.java
new file mode 100644
index 0000000..4858034
--- /dev/null
+++ b/DungeonsRedux/src/net/robotmedia/billing/example/CatalogEntry.java
@@ -0,0 +1,28 @@
+package net.robotmedia.billing.example;
+
+public class CatalogEntry {
+	
+	/**
+	 * Each product in the catalog is either MANAGED or UNMANAGED. MANAGED means
+	 * that the product can be purchased only once per user (such as a new level
+	 * in a game). The purchase is remembered by Android Market and can be
+	 * restored if this application is uninstalled and then re-installed.
+	 * UNMANAGED is used for products that can be used up and purchased multiple
+	 * times (such as poker chips). It is up to the application to keep track of
+	 * UNMANAGED products for the user.
+	 */
+	public enum Managed {
+		MANAGED, UNMANAGED
+	}
+	
+	public String sku;
+	public int nameId;
+	public Managed managed;
+
+	public CatalogEntry(String sku, int nameId, Managed managed) {
+		this.sku = sku;
+		this.nameId = nameId;
+		this.managed = managed;
+	}
+	
+}
diff --git a/DungeonsRedux/src/net/robotmedia/billing/example/Dungeons.java b/DungeonsRedux/src/net/robotmedia/billing/example/Dungeons.java
new file mode 100644
index 0000000..5880be0
--- /dev/null
+++ b/DungeonsRedux/src/net/robotmedia/billing/example/Dungeons.java
@@ -0,0 +1,210 @@
+package net.robotmedia.billing.example;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemSelectedListener;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.ListView;
+import android.widget.Spinner;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import net.robotmedia.billing.BillingController;
+import net.robotmedia.billing.IBillingObserver;
+import net.robotmedia.billing.BillingController.IConfiguration;
+import net.robotmedia.billing.example.R;
+import net.robotmedia.billing.example.CatalogEntry.Managed;
+import net.robotmedia.billing.model.Transaction;
+import net.robotmedia.billing.model.Transaction.PurchaseState;
+
+/**
+ * A sample application based on the original Dungeons to demonstrate how to use
+ * BillingController and implement IBillingObserver.
+ */
+public class Dungeons extends Activity implements IBillingObserver, IConfiguration {
+
+	private static final String TAG = "Dungeons";
+
+	/**
+	 * The SharedPreferences key for recording whether we initialized the
+	 * database. If false, then we perform a RestoreTransactions request to get
+	 * all the purchases for this user.
+	 */
+	private static final String KEY_TRANSACTIONS_RESTORED = "transactionsRestored";
+	private Button mBuyButton;
+	private Spinner mSelectItemSpinner;
+	private ListView mOwnedItemsTable;
+
+	private static final int DIALOG_BILLING_NOT_SUPPORTED_ID = 2;
+
+	/** An array of product list entries for the products that can be purchased. */
+	private static final CatalogEntry[] CATALOG = new CatalogEntry[] {
+			new CatalogEntry("sword_001", R.string.two_handed_sword, Managed.MANAGED),
+			new CatalogEntry("potion_001", R.string.potions, Managed.UNMANAGED),
+			new CatalogEntry("android.test.purchased", R.string.android_test_purchased, Managed.UNMANAGED),
+			new CatalogEntry("android.test.canceled", R.string.android_test_canceled, Managed.UNMANAGED),
+			new CatalogEntry("android.test.refunded", R.string.android_test_refunded, Managed.UNMANAGED),
+			new CatalogEntry("android.test.item_unavailable", R.string.android_test_item_unavailable, Managed.UNMANAGED), };
+	private String mSku;
+
+	private CatalogAdapter mCatalogAdapter;
+
+	private Dialog createDialog(int titleId, int messageId) {
+		AlertDialog.Builder builder = new AlertDialog.Builder(this);
+		builder.setTitle(titleId).setIcon(android.R.drawable.stat_sys_warning).setMessage(messageId).setCancelable(
+				false).setPositiveButton(android.R.string.ok, null);
+		return builder.create();
+	}
+
+	private void updateOwnedItems() {
+		List<Transaction> transactions = BillingController.getTransactions(this);
+		final ArrayList<String> ownedItems = new ArrayList<String>();
+		for (Transaction t : transactions) {
+			if (t.purchaseState == PurchaseState.PURCHASED) {
+				ownedItems.add(t.productId);
+			}
+		}
+		
+		mCatalogAdapter.setOwnedItems(ownedItems);
+		final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.item_row, R.id.item_name, ownedItems);
+		mOwnedItemsTable.setAdapter(adapter);
+	}
+
+	@Override
+	public void onBillingChecked(boolean supported) {
+		if (supported) {
+			restoreTransactions();
+			mBuyButton.setEnabled(true);
+		} else {
+			showDialog(DIALOG_BILLING_NOT_SUPPORTED_ID);
+		}
+	}
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.main);
+
+		setupWidgets();
+		BillingController.setDebug(true);
+		BillingController.setConfiguration(this);
+		BillingController.registerObserver(this);
+		BillingController.checkBillingSupported(this);
+		updateOwnedItems();
+	}
+
+	@Override
+	protected Dialog onCreateDialog(int id) {
+		switch (id) {
+		case DIALOG_BILLING_NOT_SUPPORTED_ID:
+			return createDialog(R.string.billing_not_supported_title, R.string.billing_not_supported_message);
+		default:
+			return null;
+		}
+	}
+
+	@Override
+	public void onPurchaseCancelled(String itemId) {
+		Log.i(TAG, "onPurchaseCancelled() itemId: " + itemId);
+	}
+
+	@Override
+	public void onPurchaseExecuted(String itemId) {
+		Log.i(TAG, "onPurchaseExecuted() itemId: " + itemId);
+		updateOwnedItems();
+	}
+
+	@Override
+	public void onPurchaseIntent(String itemId, PendingIntent purchaseIntent) {
+		BillingController.startPurchaseIntent(this, purchaseIntent, new Intent());
+	}
+
+	@Override
+	public void onPurchaseRefunded(String itemId) {
+		Log.i(TAG, "onPurchaseRefunded() itemId: " + itemId);
+	}
+
+	@Override
+	protected void onDestroy() {
+		BillingController.unregisterObserver(this);
+		BillingController.setConfiguration(null);
+		super.onDestroy();
+	}
+
+	@Override
+	public void onTransactionsRestored() {
+		Log.d(TAG, "completed RestoreTransactions request");
+		// Update the shared preferences so that we don't perform
+		// a restore transactions again.
+		SharedPreferences prefs = getPreferences(Context.MODE_PRIVATE);
+		SharedPreferences.Editor edit = prefs.edit();
+		edit.putBoolean(KEY_TRANSACTIONS_RESTORED, true);
+		edit.commit();
+	}
+
+	/**
+	 * Restores previous transactions, if any. This
+	 * happens if the application has just been installed or the user wiped
+	 * data. We do not want to do this on every startup, rather, we want to do
+	 * only when the database needs to be initialized.
+	 */
+	private void restoreTransactions() {
+		SharedPreferences prefs = getPreferences(MODE_PRIVATE);
+		boolean initialized = prefs.getBoolean(KEY_TRANSACTIONS_RESTORED, false);
+		if (!initialized) {
+			BillingController.restoreTransactions(this);
+			Toast.makeText(this, R.string.restoring_transactions, Toast.LENGTH_LONG).show();
+		}
+	}
+
+	private void setupWidgets() {
+		mBuyButton = (Button) findViewById(R.id.buy_button);
+		mBuyButton.setEnabled(false);
+		mBuyButton.setOnClickListener(new OnClickListener() {
+
+			@Override
+			public void onClick(View v) {
+				BillingController.requestPurchase(Dungeons.this, mSku, true /*confirm*/);
+			}
+		});
+
+		mSelectItemSpinner = (Spinner) findViewById(R.id.item_choices);
+		mCatalogAdapter = new CatalogAdapter(this, CATALOG);
+		mSelectItemSpinner.setAdapter(mCatalogAdapter);
+		mSelectItemSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
+
+			public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+				mSku = CATALOG[position].sku;
+			}
+
+			public void onNothingSelected(AdapterView<?> arg0) {
+			}
+
+		});
+
+		mOwnedItemsTable = (ListView) findViewById(R.id.owned_items);
+	}
+
+	@Override
+	public byte[] getObfuscationSalt() {
+		return new byte[] {41, -90, -116, -41, 66, -53, 122, -110, -127, -96, -88, 77, 127, 115, 1, 73, 57, 110, 48, -116};
+	}
+
+	@Override
+	public String getPublicKey() {
+		return "your public key here";
+	}
+}
diff --git a/README.mdown b/README.mdown
index a873381..4589b8c 100644
--- a/README.mdown
+++ b/README.mdown
@@ -54,7 +54,7 @@ BillingController
 
 [BillingController][3] provides high-level functions to interact with the Billing service and to query an obfuscated local transaction database.
 
-Since most billing functions are asynchronous, [BillingController][3] notifies all registered [IBillingObserver][4] of the responses. Additionally, [BillingController][3] requires a _BillingController.IConfiguration_ instance from which the public key required to validate signed messages and a salt to obfuscate transactions are obtained.
+Since most billing functions are asynchronous, [BillingController][3] notifies all registered [IBillingObserver][4] of the responses. Additionally, [BillingController][3] requires a `BillingController.IConfiguration` instance from which the public key required to validate signed messages and a salt to obfuscate transactions are obtained.
 
 Disclaimer
 ==========