Multiplatform LiveData
Réimplémentation of android LiveDatas on kotlin-multiplatform
It wraps reals livedatas on Android, and uses an Observable-Pattern on iOS
It works exactly the same as Android LiveDatas : https://developer.android.com/topic/libraries/architecture/livedata
KLiveData<T> Read only observable
KMutableLiveData<T> Read / Write observable
KMediatorLiveData<T> Read / Write observable, capable of listen KLiveData
Transformations like map and switchmap are available too
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
}
}Download
Add the repository
repositories {
maven { url "https://dl.bintray.com/florent37/maven" }
}common
implementation "com.github.florent37:multiplatform-livedata:1.0.0"ios
Uses a kotlin reimplementation of livedatas
implementation "com.github.florent37:multiplatform-livedata-ios:1.0.0"android
Uses inside the jetpack's LiveDatas
implementation "com.github.florent37:multiplatform-livedata-android:1.0.0"You can retrieve the real livedatas stored inside :
KLiveData<T>.toLivedata : LiveData<T>
KMutableLiveData<T>.toMutableLiveData : MutableLiveData<T>
KMediatorLiveData<T>.toMediatorLivedata : MediatorLivedata<T>
And create KLiveDatas from jetpacks LiveDatas
LiveData<T>.toKLivedata: KLiveData<T>
MutableLiveData<T>.toKMutableLiveData: KMutableLiveData<T>
MediatorLiveData<T>.toKMediatorLivedata: KMediatorLiveData<T>
License
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.