Lottie for Android, iOS, and React Native VS Moshi

Worth mentioning that After Effects can export CSS/SVG/canvas animations with the free bodymovin/Lottie plugin. This is my personal go to for creating web key frame animations and elements.

Not every after effects feature is exportable, but it’s the best and most reliable solution I’ve found for this type of workflow, maybe due in part though to my previous experience with AE.

Currently supported features: http://airbnb.io/lottie/#/supported-features

A smooth and visually appealing on-boarding experience can greatly impact how users perceive the quality of your app. In my previous article, we explored how to create custom splash screens on Fire TV apps to optimize the startup time and improve user experience. Building on that knowledge we will take a step further and learn how to develop an animated splash screen using Lottie for Fire TV applications.

They are most likely Lottie animations: http://airbnb.io/lottie/

I'd suggest Lottie with a JSON animation file

We was thinking of https://github.com/airbnb/lottie-android

But he did have a commit 3 weeks ago https://github.com/airbnb/lottie-android/commit/7479ebb2847365e5ed0575249a9b639d86808dfa

Lottie[1], an Adobe After Effects plugin, fills a gap in vector animation authoring and is quite widely used (primarily in mobile applications but also works on the web, Discord for example supports them for stickers).

It's a pity SVG animation authoring tools never eventuated since it's an underutilized native format.

[1] (ignore the GIF-converted examples, the originals are lightweight and vector-based) https://airbnb.io/lottie/

Unity can export to WebGL/WASM, so that's one option if you're making some kind of heavy interactive experience and you don't mind waiting for it to load. For just animations there are tools like Lottie that can help. I think things are generally a lot more fragmented than they were in the Flash/Shockwave days though.

6. Lottie

Honestly, when you look at a build.gradle.kts written by someone who knows what they're doing, it's not that bad (that reminds me, I should really clean up the build.gradle.kts on my personal project, I haven't heavily edited it since I knew a lot less about gradle...). For example, here's the build.gradle.kts for Moshi, a JSON serialization library from Square. It uses the root build.gradle.kts for the project a bit, which is here. The root one is a little more complex, but that's mostly because it has to deal with a multi-release build and has to configure a few plugins, like dokka. (If you're wondering where all the library versions are, they're here, using a new feature in Gradle you might like: The version catalog)

Moshi

This approach is also used by square/moshi. You can also refer this.

Best practice in Android would be Moshi, which is written by many of the same authors as Gson but is still actively maintained. It's more or less a breaking upgrade from Gson.

Thanks for the info. Just checked the GitHub and it is indeed the case that Gson is not maintained anymore. The main dev left Google it seems and therefore abandoned Gson. He and some other people however created a new project called Moshi that's probably intended as a kind of Gson 3.0: https://github.com/square/moshi the last commit was three months ago and there are a crowd of contributors listed so I guess that's the better option than ye olde Gson.

Java annotations have enabled compile-time reflection since Java 1.6, and of course it has been used for serialization: https://github.com/square/moshi/#codegen

JSON de/serialization: Kotlin serialization, Moshi

However i am getting an error "Expected BEGIN-ARRAY but was BEGIN-OBJECT at $". Looking over the moshi documentation (https://github.com/square/moshi) I think I need to use an adapter as my JSON response starts with "{ }" not the expected "[ ]". I am just struggling to understand how to implement the adapter as I think the built in adapter should work.

Moshi users are currently blocked to update until Moshi 1.13.0 is released: https://github.com/square/moshi/issues/1368