Android Weekly Issue #411

Dagger navigation support in Android Studio

Android Studio的dagger工具.

Replacing Custom Views with View Binding

为啥View Binding可以取代自定义View呢?

一些基础:

这是介绍View Binding的:
https://medium.com/androiddevelopers/use-view-binding-to-replace-findviewbyid-c83942471fc

ViewBinding还可以用代理属性简化写:

class MainActivity : AppCompatActivity() {
    private val binding by viewBinding(MainActivityBinding::inflate)

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(binding.root)

        binding.button.onClick {
            showToast("hello world!")
        }

https://medium.com/@Zhuinden/simple-one-liner-viewbinding-in-fragments-and-activities-with-kotlin-961430c6c07c

感觉他们的custom view其实是view holder.

Unit Testing ViewModel with Coroutines and LiveData

ViewModel的单元测试.

代码

扫雷小游戏: https://github.com/lucasnlm/antimine-android

协程的使用cases:
https://github.com/LukasLechnerDev/Kotlin-Coroutine-Use-Cases-on-Android

想用协程的推荐看看.

视频

一个教程: https://www.youtube.com/playlist?list=PLU4MI50rsBvaSyQvDeMRADo2Q_MOBevo1

这个Now in Android的系列视频会说一些最近进展:
https://www.youtube.com/watch?index=2&list=PLWz5rJ2EKKc9AtgKMBBdphI-mrx8XzW56&v=C4nursAx-hY&app=desktop

文字版: https://medium.com/androiddevelopers/tagged/now-in-android