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Integrating Google Pay to Android App

Google Pay is Google’s mobile payment service. We can use Google Pay make a tap-to-pay in physical stores, and we can also purchase goods in apps. In addition, Google Wallet can manage credit cards, so we don’t need to carry several credit cards.
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Android Room: Entity Relationships

When using a database, the data we query may be associated with multiple tables. Android Room allows us to define relationships between objects. When querying data, Android Room will automatically read it together with the relevant data.
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Photo by Willian Justen de Vasconcellos on Unsplash
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Android Looper and Handler Tutorial

Looper and Handler are one of the Android core components, and many high-level components are built on top of them. Understanding them helps us understand how some core components work. This article will introduce Looper and Handler and related components.
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