Limit Functionality with Android Subscriptions

user_10664666 0
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I am trying to create a in-app billing for android application that will allow users to buy a subscription. I have managed to do that and I am able to buy subscriptions but what I don't get is how can I limit some features in app to those who have not subscribed?

I cant seem to find any tutorials on that. What I want is on a button press if user have not subscribed prompt a in-app billing window. I can achieve that with this code.

public void launchBillingFLow(@SkuType String skuType, String productId) {

    Runnable launchBillingRequest = () -> {

        BillingFlowParams mBillingFlowParams;

        mBillingFlowParams = BillingFlowParams.newBuilder()
                .setSku(productId)
                .setType(skuType)
                .build();

        mBillingClient.launchBillingFlow((Activity) context, mBillingFlowParams);

    };

    executeServiceRequest(launchBillingRequest);

}

But what if user have already subscribed? So the question is, how can I check if user is subscribed and execute button press and if not show billing window. Can I get that information only if user is connected to the Internet? Do I need to store that information on device?

in-app-subscription billing in-app-purchase android
1 Answers

Use this Subscription methods to get the purchase details -

  1. To check if a subscription is already purchased (responseCode == 7)
  2. Get all the puschase list using purchasesResult.getPurchasesList()
  3. Get the response just after successful parchase of a subscription using onPurchasesUpdated method

  4. Show In-App Billing Flow using BillingFlowParams.Builder

        mBillingClient.startConnection(new BillingClientStateListener() {
            @Override
            public void onBillingSetupFinished(@BillingClient.BillingResponse int billingResponseCode) {

                if (billingResponseCode == BillingClient.BillingResponse.OK) {
                    // The billing client is ready. You can query purchases here.

                    final Purchase.PurchasesResult purchasesResult = mBillingClient.queryPurchases(BillingClient.SkuType.SUBS);
                    for (Purchase sourcePurchase : purchasesResult.getPurchasesList()) {
                        if (sourcePurchase != null) {

                            ConsumeResponseListener listener = new ConsumeResponseListener() {
                                @Override
                                public void onConsumeResponse(final int responseCode, final String purchaseToken) {
                                    // Log.d("anupam2", responseCode + "  <------->  "+ purchasesResult.getPurchasesList() + "  <------->  " + purchaseToken);
                                }
                            };
                            mBillingClient.consumeAsync(sourcePurchase.getPurchaseToken(), listener);
                        } else {

                        }
                    }

                    if (purchasesResult.getPurchasesList().size() > 0) {
                        //  Log.d("anupam3", purchasesResult.getPurchasesList().size() + "");

                    } else {
                        //  Log.d("anupam4", purchasesResult.getPurchasesList().size() + "");
                        BillingFlowParams.Builder builder = BillingFlowParams.newBuilder().setSku("234r23446").setType(BillingClient.SkuType.SUBS);
                        int responseCode = mBillingClient.launchBillingFlow(SplashActivity.this, builder.build());
                        if (responseCode == 7) {

                            //Item already purchased
                        }
                    }
                }
            }

            @Override
            public void onBillingServiceDisconnected() {
                // Try to restart the connection on the next request to
                // Google Play by calling the startConnection() method.
                Toast.makeText(SplashActivity.this, "Failed", Toast.LENGTH_LONG).show();
            }
        });

mBillingClient = BillingClient.newBuilder(this).setListener(new PurchasesUpdatedListener() {
            @Override
            public void onPurchasesUpdated(int responseCode, @Nullable List<Purchase> purchases) {

                //  Log.d("anupam", responseCode + "");
                if (responseCode == BillingClient.BillingResponse.OK && purchases != null) {
                    for (Purchase purchase : purchases) {
                    //List of purchases
                    }
                } else if (responseCode == BillingClient.BillingResponse.USER_CANCELED) {
                    Toast.makeText(SplashActivity.this, "Sorry, you have canceled purchase Subscription.", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(SplashActivity.this, "Sorry, some error occurred.", Toast.LENGTH_SHORT).show();
                }
            }
        }).build();

Now what you can do is call this in your splashscreen and save a value using sharedpreference or a global variable in your app based on the response code. Check if the response code is 7 for your subscription id or not. If suscribed (for responseCode == 7, you saved the value as suscribed), show premium features else not.

Hope it helps!

user_57730440
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