Installation

allprojects { allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
dependencies {
implementation 'com.github.applogistdev:easybilling-android:Tag'
}

What is Consume and Acknowledge

https://developer.android.com/google/play/billing/billing_library_overview#acknowledge

Consume Example

Candy Crush Buy Candy Bomb $1

Purchase -> onPurchasesUpdated -> consumePurchase

You can buy again

Acknowledge Example

Candy Crush Remove Ads $5

Purchase -> onPurchasesUpdated -> acknowledgePurchase

You can't buy again

What is Developer Payload

https://developer.android.com/google/play/billing/billing_library_overview#attach_a_developer_payload

Some example: Developer Payload = User Email Address

Candy Crush Buy Candy Bomb $1 OR Candy Crush Remove Ads $5

Purchase -> onPurchasesUpdated -> consumePurchase(Developer Payload) OR acknowledgePurchase(Developer Payload)

overridefunonInAppPurchases(purchases:List<Purchase>) { Log.d(purchases[0].developerPayload)
}
ORoverridefunonSubsPurchases(purchases:List<Purchase>) { Log.d(purchases[0].developerPayload)
}

Flow

İnit ->

• onBillingInitialized() OR onBillingInitializedError()
  • onBillingInitializedError -> Finish
  • onBillingInitialized -> onInAppPurchases() AND onSubsPurchases()
    • onInAppPurchases -> returned all BillingClient.SkuType.INAPP
    • onSubsPurchases -> returned all BillingClient.SkuType.SUBS
• billingViewModel.purchase(Context, PRODUCT_ID(Google Play Store), BillingClient.SkuType.INAPP or BillingClient.SkuType.SUBS) -> onPurchasesUpdated (Only returns the items that were just now purchased or billed.)
• billingViewModel.consumePurchase(Purchase Token) -> onPurchaseConsumed()
• billingViewModel.acknowledgePurchase(Purchase Token, AcknowledgePurchaseResponseListener, Devloper Payload) -> https://developer.android.com/google/play/billing/billing_library_overview#acknowledge

Usage

billingViewModel =ViewModelProvider(this).get(EasyBillingViewModel::class.java) billingViewModel.billingListener =object:EasyBillingListener { overridefunonBillingInitialized() { Log.d("onBillingInitialized")
} overridefunonBillingInitializedError(errorCode:Int) { Log.e("onBillingInitializedError", errorCode) } overridefunonInAppPurchases(purchases:List<Purchase>) { Log.d("onInAppPurchases") } overridefunonSubsPurchases(purchases:List<Purchase>) { Log.e("subsPurchases", purchases) } overridefunonPurchasesUpdated(billingResult:BillingResult, purchases:List<Purchase>?) { Log.e("onPurchasesUpdated")
} overridefunonPurchaseConsumed(billingResult:BillingResult, purchaseToken:String) { Log.e("onPurchaseConsumed")
} }

Payment

billingViewModel.purchase(Context, IN_APP_PRODUCT_ID)

Test Payments

billingViewModel.testPurchased(Context)
billingViewModel.testPurchaseCanceled(Context)
billingViewModel.testPurchaseItemUnavailable(Context)

Get Items

overridefunonBillingInitialized() { billingViewModel.getSkuDetails( arrayListOf(IN_APP_PRODUCT_ID), BillingClient.SkuType.INAPP, SkuDetailsResponseListener { billingResult, skuDetailsList -> {
Log.d("getSkuDetails", skuDetailsList[0].price)
}
) }
orif(billingViewModel.isBillingReady()){
billingViewModel.getSkuDetails( arrayListOf(IN_APP_PRODUCT_ID), BillingClient.SkuType.INAPP, SkuDetailsResponseListener { billingResult, skuDetailsList -> {
Log.d("getSkuDetails", skuDetailsList[0].price)
}
)
}