Fixes race condition caused by billing client dereference

CHANGELOG.md

@@ -1,5 +1,8 @@
 ## Changelogs
 
+## 6.3.0
+Refactors Google Play Java code limiting to a single billingClient. This can be considered a breaking change as it will fail when attempting to initialize the library more than once. It also adds documentation on the proper handling of the lifecycle [docs][docs/usage_instructions/connection_lifecyle.md]
+
 ## 6.2.4
 
 [Feature]

android/build.gradle

@@ -23,6 +23,7 @@ def DEFAULT_COMPILE_SDK_VERSION = 30
 def DEFAULT_BUILD_TOOLS_VERSION = "30.0.2"
 def DEFAULT_MIN_SDK_VERSION = 16
 def DEFAULT_TARGET_SDK_VERSION = 30
+def DEFAULT_PLAY_SERVICES_VERSION = "17.6.0"
 
 android {
   compileSdkVersion safeExtGet("compileSdkVersion", DEFAULT_COMPILE_SDK_VERSION)
@@ -59,6 +60,8 @@ repositories {
 dependencies {
   implementation 'com.facebook.react:react-native:+'
   playImplementation 'com.android.billingclient:billing:3.0.3'
+  def playServicesVersion = safeExtGet('playServicesVersion', DEFAULT_PLAY_SERVICES_VERSION)
+  playImplementation "com.google.android.gms:play-services-base:$playServicesVersion"
   amazonImplementation fileTree(dir: 'libs', include: ['*.jar'])
 
   def supportLibVersion = safeExtGet('supportLibVersion', safeExtGet('supportVersion', null))

android/src/main/java/com/dooboolab/RNIap/DoobooUtils.java

@@ -22,6 +22,7 @@ public class DoobooUtils {
   private static final String TAG = "DoobooUtils";
   public static final String E_UNKNOWN = "E_UNKNOWN";
   public static final String E_NOT_PREPARED = "E_NOT_PREPARED";
+  public static final String E_ALREADY_PREPARED = "E_ALREADY_PREPARED";
   public static final String E_NOT_ENDED = "E_NOT_ENDED";
   public static final String E_USER_CANCELLED = "E_USER_CANCELLED";
   public static final String E_ITEM_UNAVAILABLE = "E_ITEM_UNAVAILABLE";

android/src/play/java/com/dooboolab/RNIap/PlayUtils.java

@@ -1,24 +1,20 @@
 package com.dooboolab.RNIap;
 
+import static com.dooboolab.RNIap.DoobooUtils.E_ALREADY_OWNED;
+import static com.dooboolab.RNIap.DoobooUtils.E_DEVELOPER_ERROR;
+import static com.dooboolab.RNIap.DoobooUtils.E_ITEM_UNAVAILABLE;
+import static com.dooboolab.RNIap.DoobooUtils.E_NETWORK_ERROR;
+import static com.dooboolab.RNIap.DoobooUtils.E_SERVICE_ERROR;
+import static com.dooboolab.RNIap.DoobooUtils.E_UNKNOWN;
+import static com.dooboolab.RNIap.DoobooUtils.E_USER_CANCELLED;
+
 import android.util.Log;
 import com.android.billingclient.api.BillingClient;
 import com.facebook.react.bridge.Promise;
 
 public class PlayUtils {
-  private static final String TAG = "DoobooUtils";
-  public static final String E_UNKNOWN = "E_UNKNOWN";
-  public static final String E_NOT_PREPARED = "E_NOT_PREPARED";
-  public static final String E_NOT_ENDED = "E_NOT_ENDED";
-  public static final String E_USER_CANCELLED = "E_USER_CANCELLED";
-  public static final String E_ITEM_UNAVAILABLE = "E_ITEM_UNAVAILABLE";
-  public static final String E_NETWORK_ERROR = "E_NETWORK_ERROR";
-  public static final String E_SERVICE_ERROR = "E_SERVICE_ERROR";
-  public static final String E_ALREADY_OWNED = "E_ALREADY_OWNED";
-  public static final String E_REMOTE_ERROR = "E_REMOTE_ERROR";
-  public static final String E_USER_ERROR = "E_USER_ERROR";
-  public static final String E_DEVELOPER_ERROR = "E_DEVELOPER_ERROR";
-  public static final String E_BILLING_RESPONSE_JSON_PARSE_ERROR =
-      "E_BILLING_RESPONSE_JSON_PARSE_ERROR";
+  private static final String TAG = "PlayUtils";
+  public static final String E_PLAY_SERVICES_UNAVAILABLE = "E_PLAY_SERVICES_UNAVAILABLE";
 
   private static PlayUtils instance = new PlayUtils();