Published the code

.travis.yml

@@ -0,0 +1,26 @@
+cache: pip
+matrix:
+  fast_finish: true
+  include:
+  - name: Black
+    env: RUN=black
+    language: python
+    python: 3.7
+    os: linux
+    dist: bionic
+install:
+- pip install pycodestyle
+script:
+- pycodestyle iabwrapper/__init__.py
+after_failure:
+- sleep 10;
+- echo == End ==
+deploy:
+  skip_existing: true
+  provider: pypi
+  user: __token__
+  password:
+    secure: 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
+  distributions: sdist bdist_wheel
+  on:
+    tags: true

README.md

@@ -1,2 +1,2 @@
-# android-iab-v3-kivy
+# IABwrapper
 Wrapper around anjlab's Android In-app Billing Version 3

iabwrapper/__init__.py

@@ -0,0 +1,16 @@
+from kivy.logger import Logger
+from kivy.utils import platform
+
+__version__ = "0.0.1"
+_log_message = ("IABwrapper:"
+                + f" {__version__}"
+                + f' (installed at "{__file__}")'
+                )
+
+Logger.info(_log_message)
+
+if platform == "android":
+    from main import PythonBillingProcessor
+
+else:
+    Logger.error("IABwrapper: This module is only available on Android")

iabwrapper/main.py

@@ -0,0 +1,162 @@
+from jnius import PythonJavaClass, autoclass, java_method
+from kivy.logger import Logger
+
+PythonActivity = autoclass("org.kivy.android.PythonActivity")
+
+BillingProcessor = autoclass("com.anjlab.android.iab.v3.BillingProcessor")
+PurchaseInfo = autoclass("com.anjlab.android.iab.v3.PurchaseInfo")
+SkuDetails = autoclass("com.anjlab.android.iab.v3.SkuDetails")
+
+context = PythonActivity.mActivity
+
+
+class PythonBillingHandler(PythonJavaClass):
+    __javainterfaces__ = ["com/anjlab/android/iab/v3/BillingProcessor$IBillingHandler"]
+    __javacontext__ = "app"
+
+    def __init__(
+        self,
+        onProductPurchasedMethod,
+        onBillingErrorMethod,
+        onPurchaseHistoryRestoredMethod=None,
+        onBillingInitializedMethod=None,
+    ):
+        self.onBillingInitializedMethod = onBillingInitializedMethod
+        self.onProductPurchasedMethod = onProductPurchasedMethod
+        self.onBillingErrorMethod = onBillingErrorMethod
+        self.onPurchaseHistoryRestoredMethod = onPurchaseHistoryRestoredMethod
+        super(PythonBillingHandler, self).__init__()
+
+    @java_method("()V")
+    def onBillingInitialized(self):
+        Logger.info("onBillingInitialized")
+        if self.onBillingInitializedMethod:
+            self.onBillingInitializedMethod()
+
+    @java_method("(Ljava/lang/String;Lcom/anjlab/android/iab/v3/PurchaseInfo;)V")
+    def onProductPurchased(self, productId, purchaseInfo):
+        Logger.info("onProductPurchased: " + productId)
+        self.onProductPurchasedMethod(productId, purchaseInfo)
+
+    # Java method that takes an int and a Throwable
+    @java_method("(Ljava/lang/Integer;Ljava/lang/Throwable;)V")
+    def onBillingError(self, errorCode, error):
+        Logger.info("onBillingError: " + str(errorCode))
+        self.onBillingErrorMethod(errorCode, error)
+
+    @java_method("()V")
+    def onPurchaseHistoryRestored(self):
+        Logger.info("onPurchaseHistoryRestored")
+        if self.onPurchaseHistoryRestoredMethod:
+            self.onPurchaseHistoryRestoredMethod()
+
+
+class PythonIPurchasesResponseListener(PythonJavaClass):
+    __javainterfaces__ = [
+        "com/anjlab/android/iab/v3/BillingProcessor$IPurchasesResponseListener"
+    ]
+    __javacontext__ = "app"
+
+    def __init__(self, onPurchasesSuccessMethod=None, onPurchasesErrorMethod=None):
+        self.onPurchasesSuccessMethod = onPurchasesSuccessMethod
+        self.onPurchasesErrorMethod = onPurchasesErrorMethod
+        super(PythonIPurchasesResponseListener, self).__init__()
+
+    @java_method("()V")
+    def onPurchasesSuccess(self):
+        Logger.info("onPurchasesSuccess")
+        if self.onPurchasesSuccessMethod:
+            self.onPurchasesSuccessMethod()
+
+    @java_method("()V")
+    def onPurchasesError(self):
+        Logger.info("onPurchasesError")
+        if self.onPurchasesErrorMethod:
+            self.onPurchasesErrorMethod()
+
+
+class PythonISkuDetailsResponseListener(PythonJavaClass):
+    __javainterfaces__ = [
+        "com/anjlab/android/iab/v3/BillingProcessor$ISkuDetailsResponseListener"
+    ]
+    __javacontext__ = "app"
+
+    def __init__(self, onSkuDetailsSuccessMethod=None, onSkuDetailsErrorMethod=None):
+        self.onSkuDetailsSuccessMethod = onSkuDetailsSuccessMethod
+        self.onSkuDetailsErrorMethod = onSkuDetailsErrorMethod
+        super(PythonISkuDetailsResponseListener, self).__init__()
+
+    @java_method("(Ljava/lang/Object;)V")
+    def onSkuDetailsResponse(self, products):
+        Logger.info("onSkuDetailsResponse")
+        if self.onSkuDetailsSuccessMethod:
+            self.onSkuDetailsSuccessMethod(products)
+
+    @java_method("(Ljava/lang/String;)V")
+    def onSkuDetailsError(self, error):
+        Logger.info("onSkuDetailsError")
+        if self.onSkuDetailsErrorMethod:
+            self.onSkuDetailsErrorMethod(error)
+
+
+class PythonBillingProcessor(BillingProcessor):
+    def __init__(
+        self,
+        license_key,
+        onProductPurchasedMethod,
+        onBillingErrorMethod,
+        onPurchaseHistoryRestoredMethod=None,
+        onBillingInitializedMethod=None,
+    ):
+        self.billing_handler = PythonBillingHandler(
+            onProductPurchasedMethod,
+            onBillingErrorMethod,
+            onPurchaseHistoryRestoredMethod,
+            onBillingInitializedMethod,
+        )
+
+        super().__init__(context, license_key, self.billing_handler)
+        self.initialize()
+
+    def purchase(self, product_id):
+        super().purchase(context, product_id)
+
+    def consumePurchaseAsync(
+        self, product_id, success_listener=None, error_listener=None
+    ):
+        purchases_response_listener = PythonIPurchasesResponseListener(
+            success_listener, error_listener
+        )
+        super().consumePurchaseAsync(product_id, purchases_response_listener)
+
+    def getPurchaseListingDetailsAsync(
+        self, product_id, success_listener=None, error_listener=None
+    ):
+        sku_details_listener = PythonISkuDetailsResponseListener(
+            success_listener, error_listener
+        )
+        super().getPurchaseListingDetailsAsync(product_id, sku_details_listener)
+
+    def subscribe(self, subscription_id):
+        super().subscribe(context, subscription_id)
+
+    def loadOwnedPurchasesFromGoogleAsync(
+        self, success_listener=None, error_listener=None
+    ):
+        purchases_response_listener = PythonIPurchasesResponseListener(
+            success_listener, error_listener
+        )
+        super().loadOwnedPurchasesFromGoogleAsync(purchases_response_listener)
+
+    def getSubscriptionListingDetailsAsync(
+        self, subscription_id, success_listener=None, error_listener=None
+    ):
+        sku_details_listener = PythonISkuDetailsResponseListener(
+            success_listener, error_listener
+        )
+        super().getSubscriptionListingDetailsAsync(
+            subscription_id, sku_details_listener
+        )
+
+    def __del__(self):
+        self.release()

setup.py

@@ -0,0 +1,40 @@
+from setuptools import setup
+import os, re
+
+with open("README.md", "r") as fh:
+    long_description = fh.read()
+
+
+def get_version() -> str:
+    """Get __version__ from __init__.py file."""
+    version_file = os.path.join(os.path.dirname(__file__), "iabwrapper", "__init__.py")
+    version_file_data = open(version_file, "rt", encoding="utf-8").read()
+    version_regex = r"(?<=^__version__ = ['\"])[^'\"]+(?=['\"]$)"
+    try:
+        version = re.findall(version_regex, version_file_data, re.M)[0]
+        return version
+    except IndexError:
+        raise ValueError(f"Unable to find version string in {version_file}.")
+
+
+setup(
+    name="IABwrapper",
+    version=get_version(),
+    packages=["iabwrapper"],
+    package_data={"iabwrapper": ["*.py"],},
+    # metadata to display on PyPI
+    author="Shashi Ranjan",
+    author_email="shashiranjankv@gmail.com",
+    description="Wrapper around anjlab's Android In-app Billing Version 3 to be used in Kivy apps",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    keywords="iab playstore billing android kivy-application kivy python",
+    url="https://github.com/shashi278/android-iab-v3-kivy",
+    classifiers=[
+        "Programming Language :: Python :: 3",
+        "License :: OSI Approved :: MIT License",
+        "Operating System :: Android",
+    ],
+    install_requires=["kivy"],
+    python_requires=">=3.6",
+)