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BillingX: Billing Extensions

DEPRECATED

BillingX is deprecated. No more development will be taking place. Thanks for all your support!


Extensions for the Play Billing Library to allow fake purchases and transaction management in debug builds.

Dialog Screenshot

BillingX uses a local store for sku and purchase information, allowing you to use a BillingClient implementation to make purchases and query information without needing to connect to the Play Store.

If you interact with the Play Store using anything other than the Play Billing Library then BillingX isn't for you. You should check out Register.

BillingX is currently in super early release. It's being used in production apps (debug variants), but isn't yet complete.

Todo

  • Implement IAB consumption.
  • Add config activity to manage inventory.
  • Add support for specifying supported feature return types.

Usage

Simply inject the DebugBillingClient instead of the standard BillingClient from the support library. Then you can continue to use the BillingClient as you normally would.

If you're not using a dependency injection framework like Dagger, you can create a simple factory to get the appropriate instance.

In src/release/java:

object BillingClientFactory {
  fun createBillingClient(activity: Activity, updateListener: PurchasesUpdatedListener): BillingClient {
    return BillingClient
        .newBuilder(activity)
        .enablePendingPurchases()
        .setListener(updateListener)
        .build()
  }
}

In src/debug/java:

object BillingClientFactory {
  fun createBillingClient(activity: Activity, updateListener: PurchasesUpdatedListener): BillingClient {
    return DebugBillingClient(
        activity = activity,
        backgroundExecutor = Executors.diskIO,
        purchasesUpdatedListener = updateListener
    )
  }
}

Custom BillingStore

By default, BillingX uses a built in BillingStore backed by shared preferences. You can supply your own BillingStore to the DebugBillingClient constructor if you'd prefer to store your inventory and purchase information elsewhere, like an SQLite database or web service.

object BillingClientFactory {
  fun createBillingClient(activity: Activity, updateListener: PurchasesUpdatedListener): BillingClient {
    return DebugBillingClient(
        activity = activity,
        backgroundExecutor = Executors.diskIO,
        purchasesUpdatedListener = updateListener,
        billingStore = MyBillingStore()
    )
  }
}

You simply need to create an implementation of the BillingStore abstract class in your custom class. Note that threading is taken care of in the DebugBillingClient so all methods implemented in your custom BillingStore can be synchronous.

Initializing the Inventory

When using the default BillingStore, you must first initialize the inventory before you can make purchases or view products.

The BillingStore abstract class includes a companion function to retrieve the default store. From there you can update the products and purchases.

fun setupPurchases(activity: Activity) {
  BillingStore.defaultStore(activity)
      .clearProducts()
      .addProduct(
          SkuDetailsBuilder(sku = "com.myapp.weekly", type = BillingClient.SkuType.SUBS,
              price = "$3.99", priceAmountMicros = 3990000, priceCurrencyCode = "USD",
              title = "Weekly", description = "Weekly Premium Subscription",
              subscriptionPeriod = "P1W", freeTrialPeriod = "P1W").build()
      )
      .addProduct(
          SkuDetailsBuilder(sku = "com.myapp.monthly", type = BillingClient.SkuType.SUBS,
              price = "$8.99", priceAmountMicros = 8990000, priceCurrencyCode = "USD",
              title = "Monthly", description = "Monthly Premium Subscription",
              subscriptionPeriod = "P1W", freeTrialPeriod = "P1W").build()
      )
      .addProduct(
          SkuDetailsBuilder(sku = "com.myapp.yearly", type = BillingClient.SkuType.SUBS,
              price = "$59.99", priceAmountMicros = 59990000, priceCurrencyCode = "USD",
              title = "Yearly", description = "Yearly Premium Subscription",
              subscriptionPeriod = "P1W", freeTrialPeriod = "P1W").build()
      )
}

Download

Import the billingx library only into your debug builds and use the standard billing support library in your release builds.

debugImplementation 'com.pixiteapps.billingx:billingx:0.9.0'
releaseImplementation 'com.android.billingclient:billing:4.0.0'

License

Copyright 2018 Pixite LLC.

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.