When we write unit tests or UI tests for applications, sending the actual API request to hit the backend is a waste and it perhaps pollutes the database as repetitive tests run, it also introduces extra complexity as concurrent threads get involved. In this story, I’ll list four different mocking…

When talking about syncing local data with the remote data source, it’s about Insert, Delete and Update entity in the local database according to the response of API. Considering creating, deleting or updating occur in an arbitrary position of a paging API, the synchronization becomes a little complicated. …

There are two essential ideas in a well-designed MVVM: unidirectional data flow and weak reference to the view. The flow of data in MVVM is unidirectional, the data was aroused from user or system event, and then it flows to viewModel, model, and view at last. You can implement the…

I love programming in Android and iOS platforms with Kotlin and Swift, I will demonstrate the difference and similarity of enumeration using code in this post, it is part of this language comparison series. Definition of Enumeration Kotlin In Kotlin, each enum constant is an object. enum class Direction { NORTH, SOUTH, WEST, EAST…

In the early stage of iOS development, we may need some mocking data or generated data to feed UI. And there are some awesome JS libraries which we can leverage to speed up iOS development. In this story, I will take faker.js …

This story is an extension of the previous stories of Data Binding with KeyPath Part1 and Part2. Data Binding with MVVM on iOS part 1: Data flows Android provides data binding to listen to the model’s change and update binding views. But how to implement it in…medium.com Data Binding with MVVM on iOS part 2: KeyPath and Type Erasure This story is about how I implement one-way and two-way data binding with Swift KeyPath.medium.com

This story is about how I implement one-way and two-way data binding with Swift KeyPath. Before reading this story, you may need to check out part1 to know which data-flow strategy I’m taking. Data-binding in iOS part 1: Data flows in MVC Android provides data binding to listen to the model’s change and update binding views. But how to implement it in…medium.com Why KeyPath? \TypeName.path 1. Dynamic and Consistency

Android provides data binding to listen to the model’s change and update binding views. That’s where I love Android development more than iOS development. In this story, I’ll implement data-binding with Swift KeyPath, and probably you have a better idea. Welcome to comment. From this form design, you can easily…

This post is about how to use only one RecyclerAdapter to deal with multiple recycler views with Android Jetpack, and it’s inspired by a post from Anton Stulnev. In this demo, I use PagedListAdapter, but you don’t have to. For the complete project written in Android Jetpack, you can view…