Kotlin中的带有Dagger的物件（@Singleton）或物体

Question

Singleton和几个LiveData用于观察和发布的最佳方法是什么？

Object：

object EventsObj {

    private val _actionLiveData = MutableLiveData<...>()
    val actionLiveData: LiveData<...> = _actionLiveData

    fun postActionEvent(value: ...) {
        _actionLiveData.postValue(value)
    }
    ... //few more LiveDatas following the same logic
}

或Dagger：

@Singleton
class EventsClass
@Inject constructor() {

    private val _actionLiveData = MutableLiveData<...>()
    val actionLiveData: LiveData<...> = _actionLiveData

    fun postActionEvent(value: ...) {
        _actionLiveData.postValue(value)
    }

    ... //few more LiveDatas following the same logic
}

用途：

@Inject
lateinit var eventsClass: EventsClass

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    eventsClass.actionLiveData.observe(this, ...)
    eventsClass.postActionEvent(...)

    EventsObj.actionLiveData.observe(this, ...)
    EventsObj.postActionEvent(...)
}

Answer 1

与Oject Kotlin合作将简化您的生活。它更容易调用。无需创建依赖关系并编写其他代码。