Google In-App Billing Library v4+
A simple implementation of the Android In-App Billing API.
It supports: in-app purchases (both consumable and non-consumable) and subscriptions.
Getting Started
-
You project should build against Android 4.1.x (minSdkVersion 16).
-
Add the JitPack repository to your project's build.gradle file:
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
- Add the dependency in your app's build.gradle file:
dependencies {
implementation 'com.github.moisoni97:google-inapp-billing:1.0.2'
}
- Open the AndroidManifest.xml of your application and add this permission:
<uses-permission android:name="com.android.vending.BILLING" />
Important Notice
- For builds that use
minSdkVersionlower than24it is very important to include the following in your app's build.gradle file:
android {
compileOptions {
coreLibraryDesugaringEnabled true
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
}
- For builds that use
minSdkVersionlower than21add the above and also this:
android {
defaultConfig {
multiDexEnabled true
}
}
This step is required to enable support for some APIs on lower SDK versions that aren't available natively only starting from minSdkVersion 24.
Usage
- Create an instance of BillingConnector class. Constructor will take 2 parameters:
- Context
- License key from
Play Console
billingConnector = new BillingConnector(this, "license_key")
.setConsumableIds(consumableIds)
.setNonConsumableIds(nonConsumableIds)
.setSubscriptionIds(subscriptionIds)
.autoAcknowledge()
.autoConsume()
.enableLogging()
.connect();
- Implement the listener to handle event results and errors:
billingConnector.setBillingEventListener(new BillingEventListener() {
@Override
public void onProductsFetched(@NonNull List<SkuInfo> skuDetails) {
/*Provides a list with fetched products*/
}
@Override
public void onPurchasedProductsFetched(@NonNull List<PurchaseInfo> purchases) {
/*Provides a list with fetched purchased products*/
}
@Override
public void onProductsPurchased(@NonNull List<PurchaseInfo> purchases) {
/*Callback after a product is purchased*/
}
@Override
public void onPurchaseAcknowledged(@NonNull PurchaseInfo purchase) {
/*Callback after a purchase is acknowledged*/
/*
* Grant user entitlement for NON-CONSUMABLE products and SUBSCRIPTIONS here
*
* Even though onProductsPurchased is triggered when a purchase is successfully made
* there might be a problem along the way with the payment and the purchase won't be acknowledged
*
* Google will refund users purchases that aren't acknowledged in 3 days
*
* To ensure that all valid purchases are acknowledged the library will automatically
* check and acknowledge all unacknowledged products at the startup
* */
}
@Override
public void onPurchaseConsumed(@NonNull PurchaseInfo purchase) {
/*Callback after a purchase is consumed*/
/*
* CONSUMABLE products entitlement can be granted either here or in onProductsPurchased
* */
}
@Override
public void onBillingError(@NonNull BillingConnector billingConnector, @NonNull BillingResponse response) {
/*Callback after an error occurs*/
switch (response.getErrorType()) {
case CLIENT_NOT_READY:
//TODO - client is not ready
break;
case CLIENT_DISCONNECTED:
//TODO - client has disconnected
break;
case ITEM_NOT_EXIST:
//TODO - item doesn't exist
break;
case ITEM_ALREADY_OWNED:
//TODO - item is already owned
break;
case ACKNOWLEDGE_ERROR:
//TODO - error during acknowledgment
break;
case ACKNOWLEDGE_WARNING:
/*
* This will be triggered when a purchase can not be acknowledged because the state is PENDING
* A purchase can be acknowledged only when the state is PURCHASED
*
* PENDING transactions usually occur when users choose cash as their form of payment
*
* Here users can be informed that it may take a while until the purchase complete
* and to come back later to receive their purchase
* */
//TODO - warning during acknowledgment
break;
case CONSUME_ERROR:
//TODO - error during consumption
break;
case FETCH_PURCHASED_PRODUCTS_ERROR:
//TODO - error occurred while querying purchases
break;
case BILLING_ERROR:
//TODO - error occurred during initialization / querying sku details
break;
}
}
});
Initiate a purchase
- Purchase a non-consumable / consumable product:
billingConnector.purchase(this, "sku_id");
- Purchase a subscription:
billingConnector.subscribe(this, "sku_id");
- Cancel a subscription:
billingConnector.unsubscribe(this, "sku_id");
Sample App
Go through the sample app to see a more advanced integration of the library.
It also shows how to implement some useful public methods.
26 Nov 16, 2022
25 Dec 31, 2022
3 Nov 28, 2022
5 Oct 6, 2022
243 Jan 4, 2023
31 Oct 3, 2022
15 May 5, 2022
248 Dec 30, 2022
154 Sep 25, 2022
5 Nov 4, 2021
21 Jan 10, 2022
59 Jan 1, 2023
5 Nov 29, 2022
1 Jan 23, 2022
4 Oct 19, 2022
1 Mar 30, 2022
8 Nov 17, 2022
73 Dec 19, 2022