RÉMPLÉMENTATION DE LIVEATS Android sur Kotlin-Multiplatform
Il enveloppe des vies de vie sur Android et utilise un potentiel observable sur iOS
Cela fonctionne exactement de la même manière que Android LiveDatas: https://developer.android.com/topic/libraries/architecture/liveata
KLiveData<T> lire uniquement observable KMutableLiveData<T> lire / écrire observable KMediatorLiveData<T> lire / écrire observable, capable d'écouter KLiveData
Des transformations comme map et switchmap sont également disponibles
class MainViewModel ( val premiumManager : PremiumManager ) {
private val _viewState = KMediatorLiveData < ViewState >()
val viewState = KLiveData < ViewState >()
get() = _viewState
init {
_viewState .value = ViewState ( " not premium " )
_viewState .addSource(premiumManager.premium()) {
if (it) {
_viewState .value = ViewState ( " premium " )
} else {
_viewState .value = ViewState ( " not premium " )
}
}
}
} class ViewState (
val userStatus : String
) class PremiumManager {
private val premium = KMutableLiveData < Boolean >()
fun premium () : KLiveData < Boolean > {
return premium
}
fun becomePremium () {
premium.value = true
}
init {
// default value
premium.value = false
}
}Ajouter le référentiel
repositories {
maven { url " https://dl.bintray.com/florent37/maven " }
}implementation " com.github.florent37:multiplatform-livedata:1.0.0 " Utilise une réimplémentation Kotlin de LiveDatas
implementation " com.github.florent37:multiplatform-livedata-ios:1.0.0 " Utilise à l'intérieur de la vie de Jetpack
implementation " com.github.florent37:multiplatform-livedata-android:1.0.0 "Vous pouvez récupérer les vraies livedatas stockées à l'intérieur:
KLiveData<T>.toLivedata : LiveData<T>
KMutableLiveData<T>.toMutableLiveData : MutableLiveData<T>
KMediatorLiveData<T>.toMediatorLivedata : MediatorLivedata<T>
Et créer des klivedatas à partir de jetpacks livedatas
LiveData<T>.toKLivedata: KLiveData<T>
MutableLiveData<T>.toKMutableLiveData: KMutableLiveData<T>
MediatorLiveData<T>.toKMediatorLivedata: KMediatorLiveData<T>
Copyright 2018 Florent37
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.