Android Weekly Issue #461

Coordinating multiple view visibility with Flow and the combine operator

复杂的UI状态, 通过在ViewModel里combine flow来完成.

Improving Android DataBinding with Bindables library

用这个库: https://github.com/skydoves/bindables 来进一步改善data binding的使用.

Scheduling Tasks With Android WorkManager

WorkManager的使用和测试.

Noisy Code 🗣 With Kotlin Scopes

kotlin的几个scope方法, 可能会导致可读性降低.

remember { mutableStateOf() } – A cheat sheet

Compose代码中的:

var text by remember { mutableStateOf("") }

• by是Kotlin的delegated property.
• remember在recompositions中保持一个值不变. (persists across recompositions).
• mutableStateOf返回一个MutableState.

Libraries & Code

• https://github.com/skydoves/bindables DataBinding的辅助类.
• https://github.com/arkivanov/composnake Compose Desktop做的贪吃蛇.
• https://github.com/slackhq/EitherNet Retrofit的返回类型包装.
• https://github.com/SerjantArbuz/Scriptum 一个笔记本应用

Videos

• Android Runtime - How Dalvik and ART work?
• Talking Kotlin: MVIKotlin and Decompose with Arkadii Ivanov from Bumble
• Android Budapest Reactive State Management with Jetpack • Gábor Váradi