Welcome to the quiz on implementing In-App Purchases in Android apps! This quiz is designed to test your understanding of the key concepts and practical steps involved in adding in-app purchasing functionality to an Android project. It covers topics such as setting up a project with the Google Play Billing Library, creating and managing in-app products, handling purchase flows, and troubleshooting common issues during testing. Whether you are looking to integrate consumable products or subscriptions into your app, this quiz will help you assess your readiness and reinforce your knowledge in this area.
1.
Which method is used to query previous purchases in the app?
2.
How is a consumable in-app product consumed after a purchase?
3.
Why is the enablePendingPurchases() method required?
4.
What does a PurchaseState of PURCHASED indicate?
5.
Which API level is required as a minimum for in-app purchases?
6.
What is the purpose of the BillingClientStateListener?
7.
How can a developer test the purchase flow without using real money?
8.
Which Google library is necessary for in-app billing in an Android app?
9.
Why is it important to queryProductDetailsAsync() after initializing the billing client?
10.
Which class is used to query product details from the Play Store?
11.
What is the purpose of license testing in the Play Console?
12.
Which method is used to acknowledge a non-consumable purchase?
13.
Which object is used to initialize the purchase flow?
14.
Why should the PurchaseHelper class not be implemented as a view model?
15.
What must be configured in the Play Console to enable in-app purchasing for an app?
16.
What method is used to initialize a connection to the Google Play Billing Library?
17.
What must be done before the app can be tested for in-app purchases?
18.
What does the PurchasesUpdatedListener handle?
