Wrapperlivedata

1. build.gradle

allprojects {
  repositories {
    //...
    maven { url 'https://jitpack.io' }
  }
}

dependencies {
   implementation 'com.github.Flywith24:WrapperLiveDataDemo:1.0.2'
 }

Release

• 1.0.2

• 1.0.1 onLoading

LiveData

LiveData [] SnackBarNavigation LiveDataSingleLiveEvent

class ListViewModel : ViewModel {
    private val _navigateToDetails = MutableLiveData<Event<String>>()

    val navigateToDetails : LiveData<Event<String>>
        get() = _navigateToDetails


    fun userClicksOnButton(itemId: String) {
        _navigateToDetails.value = Event(itemId)  // Trigger the event by setting a new Event as a new value
    }
}

myViewModel.navigateToDetails.observe(this, Observer {
    it.getContentIfNotHandled()?.let { // Only proceed if the event has never been handled
        startActivity(DetailsActivity...)
    }
})

// LiveData<Event<T>> EventLiveData<T> 
typealias EventMutableLiveData<T> = MutableLiveData<Event<T>>

typealias EventLiveData<T> = LiveData<Event<T>>

typealias

// MutableLiveData<Event<Boolean>>(Event(false))
val eventContent = EventMutableLiveData<Boolean>(Event(false))

kotlin

demo LiveData LiveData<Boolean> EventLiveData<Boolean> onChanged Toast

java

typealias +

demo

Demo

demo

• AndroidStudio Nexus3.xMaven

• gradle200 Kotlin+buildSrc Plugin

• gradle

• Android Router activity

• KotlinCoil

• Navigation + Dynamic Feature Module

• buildSrc includeBuild

Fly_with24

• Github