Subscription: https://github.com/wdtheprovider/in-app-purchases-subscription
In this repository i'm going to show you how to integrate In-App Purchase of Google Play Billing version 4+ in 6 steps.
Demo
Pre-requisite
- Google Play Console Account
- Published App on Play Store
- Tester Device with GMS
YouTube Video: Part-1 | Intro Demo: https://youtu.be/ihL0jW5cFtM
YouTube Video: Part-2 | Configure Testing Device: https://youtu.be/j6wWVMj-fi8
YouTube Video: Part-3 | Integrating The Methods to purchase the products: https://youtu.be/f87Yo5wEcc4
Configure Your Testing device by adding the gmail account to internal testing testers
and License testing (Watch the YouTube video for clarity: https://youtu.be/j6wWVMj-fi8 )
Setup the in-app purchase products in Google Play Console account
i have already created mine which are
Product ID: clicks_5
Product ID: clicks_10
Product ID: clicks_50
The following methods (These are the methods you need for the IAP System to work, you can copy and paste)
void connectGooglePlayBilling(){}
void getProducts(){}
void launchPurchaseFlow(){}
void verifyPayment(Purchase purchases){}
void giveCoins(){}
Step 0: //Add the Google Play Billing Library dependency
Step 1: //Initialize a BillingClient with PurchasesUpdatedListener
Step 2: //Establish a connection to Google Play
Step 3: //Show products available to buy
Step 4: //Launch the purchase flow
Step 5: //Processing purchases / Verify Payment
Step 6: //Handling pending transactions
First we will look at consumable items/products
more info.
For consumables, the consumeAsync() method fulfills the acknowledgement requirement and indicates that your app has granted entitlement to the user. This method also enables your app to make the one-time product available for purchase again.
Learn More: https://developer.android.com/google/play/billing/integrate
Step 0: //Add the Google Play Billing Library dependency
//Add the Google Play Billing Library dependency to your app's build.gradle file as shown:
dependencies {
def billing_version = "4.0.0"
implementation "com.android.billingclient:billing:$billing_version"
}
And Open Manifest File and add this permission
<uses-permission android:name="com.android.vending.BILLING" />
Step 1: //Initialize a BillingClient with PurchasesUpdatedListener
//Initialize a BillingClient with PurchasesUpdatedListener onCreate method
billingClient = BillingClient.newBuilder(getApplicationContext())
.setListener(new PurchasesUpdatedListener() {
@Override
public void onPurchasesUpdated(@NonNull BillingResult billingResult, @Nullable List<Purchase> list) {
if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK && list != null) {
for (Purchase purchase : list) {
verifyPayment(purchase);
}
}
}
})
.enablePendingPurchases()
.build();
// call connectGooglePlayBilling()
connectGooglePlayBilling();
Step 2: //Establish a connection to Google Play
void connectGooglePlayBilling() {
billingClient.startConnection(new BillingClientStateListener() {
@Override
public void onBillingServiceDisconnected() {
connectGooglePlayBilling();
}
@Override
public void onBillingSetupFinished(@NonNull BillingResult billingResult) {
if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
Log.d(TAG, "Connected " + 0);
getProducts();
}
}
});
}
Step 3: //Show products available to buy
void getProducts() {
List<String> skuList = new ArrayList<>();
//replace these with your product IDs from google play console
skuList.add("clicks_5");
skuList.add("clicks_10");
skuList.add("clicks_50");
SkuDetailsParams.Builder params = SkuDetailsParams.newBuilder();
params.setSkusList(skuList).setType(BillingClient.SkuType.INAPP);
billingClient.querySkuDetailsAsync(params.build(),
new SkuDetailsResponseListener() {
@SuppressLint("SetTextI18n")
@Override
public void onSkuDetailsResponse(BillingResult billingResult,
List<SkuDetails> skuDetailsList) {
// Process the result.
if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK && skuDetailsList != null) {
for (SkuDetails skuDetails : skuDetailsList) {
if (skuDetails.getSku().equals("clicks_5")) {
clicks_5.setText("Add 5 clicks (" + skuDetails.getPrice() + ")");
clicks_5.setOnClickListener(view -> {
launchPurchaseFlow(skuDetails);
});
} else if (skuDetails.getSku().equals("clicks_10")) {
clicks_15.setText("Add 15 clicks (" + skuDetails.getPrice() + ")");
clicks_15.setOnClickListener(view -> {
launchPurchaseFlow(skuDetails);
});
} else if (skuDetails.getSku().equals("clicks_50")) {
clicks_50.setText("Add 50 clicks (" + skuDetails.getPrice() + ")");
clicks_50.setOnClickListener(view -> {
launchPurchaseFlow(skuDetails);
});
}
}
}
}
});
}
Step 4: //Launch the purchase flow
void launchPurchaseFlow(SkuDetails skuDetails) {
BillingFlowParams billingFlowParams = BillingFlowParams.newBuilder()
.setSkuDetails(skuDetails)
.build();
billingClient.launchBillingFlow(PremiumActivity.this, billingFlowParams);
}
Step 5: //Processing purchases / Verify Payment
void verifyPayment(Purchase purchase) {
ConsumeParams consumeParams = ConsumeParams.newBuilder()
.setPurchaseToken(purchase.getPurchaseToken())
.build();
ConsumeResponseListener listener = new ConsumeResponseListener() {
@Override
public void onConsumeResponse(@NonNull BillingResult billingResult, @NonNull String s) {
if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
Log.d(TAG, purchase.getSkus().get(0) + " sku");
if (purchase.getSkus().get(0).equals("clicks_5")) {
updateClicks(5);
} else if (purchase.getSkus().get(0).equals("clicks_10")) {
updateClicks(15);
} else if (purchase.getSkus().get(0).equals("clicks_50")) {
updateClicks(50);
}
}
}
};
billingClient.consumeAsync(consumeParams, listener);
}
Step 6: //Handling pending transactions
protected void onResume() {
super.onResume();
you_have_tv.setText("You have " + adsPref.getClicks() + " click(s)");
billingClient.queryPurchasesAsync(
BillingClient.SkuType.INAPP,
new PurchasesResponseListener() {
@Override
public void onQueryPurchasesResponse(@NonNull BillingResult billingResult, @NonNull List<Purchase> list) {
if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
for (Purchase purchase : list) {
if (purchase.getPurchaseState() == Purchase.PurchaseState.PURCHASED && !purchase.isAcknowledged()) {
verifyPayment(purchase);
}
}
}
}
}
);
}
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent