Google Play

#How To add

1. Add the corresponding billing permission

   <uses-permission android:name="com.android.vending.BILLING" />

2. Provide your public key

   OpenIabHelper.Options.Builder builder = new OpenIabHelper.Options.Builder();
   builder.addStoreKey(OpenIabHelper.NAME_GOOGLE, googlePlayPublicKey);
   mHelper = new OpenIabHelper(this, builder.build());

   otherwise verify purchases on your server side.

3. Map the SKUs if they are different for the supported stores

   OpenIabHelper.mapSku(SKU_PREMIUM, OpenIabHelper.NAME_GOOGLE, "org.onepf.trivialdrive.gp.premium");
   OpenIabHelper.mapSku(SKU_GAS, OpenIabHelper.NAME_GOOGLE, "org.onepf.trivialdrive.gp.gas");
   OpenIabHelper.mapSku(SKU_INFINITE_GAS, OpenIabHelper.NAME_GOOGLE, "org.onepf.trivialdrive.gp.infinite_gas");

4. In the proguard configuration file add

    -keep class com.android.vending.billing.**
   

Receipt Verification on Server

1. Create OpenIabHelper with "Skip signature verification" option and no public keys. If you specify no public keys and forget VERIFY_SKIP option, an IllegalArgumentException will be thrown

   OpenIabHelper.Options.Builder builder = new OpenIabHelper.Options.Builder();
   builder.setVerifyMode(OpenIabHelper.Options.VERIFY_SKIP);
   mHelper = new OpenIabHelper(context, builder.build());

2. Get receipt data and signature from Purchase object and send it to your server

   new IabHelper.OnIabPurchaseFinishedListener() {
       public void onIabPurchaseFinished(IabResult result, Purchase purchase) {
           // … different result checks ...
           String receiptData = purchase.getOriginalJson();
           String receiptSignature = purchase.getSignature();
           String storeName = purchase.getAppstoreName();
           String urlToContent  = yourRequestReceiptVerificationOnServer(receiptData, receiptSignature, storeName);
           // … further code ...
       }
   }

or use the following methods

How To test

To test .apk, please ensure

- your .apk is submitted to Google Play Developer Console
- your .apk is signed by the production key
- versionCode in AndroidManifest.xml of your .apk is equal to versionCode of .apk submitted to Developer Console