In-App Purchases in Flutter — Complete Unification for Android and iOS
summary
A Flutter engineer explains migrating an existing Android in-app purchase implementation to Flutter for unified Android/iOS apps. The talk covers using an open-source cross-platform IAP library, its internal mapping to Android native APIs, and concrete flows for purchase, restore, subscription plan changes, and handling purchase results.
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chapters (19)
- 0:00Introduction
- 3:12Prerequisites
- 5:00Libraries and mechanism
- 7:32Android API support
- 9:15Query product details
- 9:57Billing flow
- 11:01Purchase results and streams
- 12:30Query purchases
- 15:21Consume purchases
- 16:06Purchase result classes
- 18:14Purchase validation
- 20:02Purchase and restore flow
- 23:39Distinguish purchases
- 25:25Upgrade vs downgrade
- 26:51State management
- 30:50iOS StoreKit
- 33:14Receipt data retrieval
- 34:40Unification summary
- 35:42Troubleshooting
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