JarCastingActions dispatcher
Example
To enable generation, annotate action class with @ActionElement annotation:
class State
@ActionElement(state = State::class)
sealed class Action
object OpenArticleDetail : Action()
object LikeArticle : Action()
object DislikeArticle : Action()
object AddArticleToFavorite : Action()
After doing that you will get an auto-generated ActionReceiver interface:
interface ActionReceiver {
fun processAddArticleToFavorite(
previousState: State,
action: AddArticleToFavorite
): Pair<State, Function0<Action?>?>
fun processDislikeArticle(
previousState: State,
action: DislikeArticle
): Pair<State, Function0<Action?>?>
fun processLikeArticle(
previousState: State,
action: LikeArticle
): Pair<State, Function0<Action?>?>
fun processOpenArticleDetail(
previousState: State,
action: OpenArticleDetail
): Pair<State, Function0<Action?>?>
}
And ActionsReducer with reduce function:
class ActionsReducer private constructor(private val receiver: ActionReceiver) {
fun reduce(previousState: State, action: Action): Pair<State, Function0<Action?>?> = when (action) {
is DislikeArticle -> receiver.processDislikeArticle(previousState, action)
is OpenArticleDetail -> receiver.processOpenArticleDetail(previousState, action)
is AddArticleToFavorite -> receiver.processAddArticleToFavorite(previousState, action)
is LikeArticle -> receiver.processLikeArticle(previousState, action)
}
}
All you have to do after adding an annotation is to use a generated builder which will create this reducer for you and also you will need to implement a receiver:
class MyPresenter : BasePresenter<State, View, Action>(), ActionReceiver {
private val reducer = ActionsReducer.Builder()
.receiver(this) // <-- a class wich implements ActionReceiver and will receive reduce calls
.build()
fun reduce(previusState: State, action: Action) {
reducer.reduce(previusState, action)
}
override fun processAddArticleToFavorite(previousState: State, action: Action): Pair<State, Function0<Action?>?> {
// process add article to favorite
}
override fun processDislikeArticle(previousState: State, action: Action): Pair<State, Function0<Action?>?> {
// process dislike article
}
override fun processLikeArticle(previousState: State, action: Action): Pair<State, Function0<Action?>?> {
// process like article
}
override fun processOpenArticleDetail(previousState: State, action: Action): Pair<State, Function0<Action?>?> {
// process open details article
}
}
Download
Add a Gradle dependency:
apply plugin: 'kotlin-kapt'
sourceSets {
main.java.srcDirs += 'src/main/kotlin'
main.java.srcDirs += 'build/generated/source/kaptKotlin/main' // <-- add to your module
debug.java.srcDirs += 'build/generated/source/kaptKotlin/debug' // <-- add to your module
release.java.srcDirs += 'build/generated/source/kaptKotlin/release' // <-- add to your module
test.java.srcDirs += 'src/test/kotlin'
}
implementation 'com.github.rougsig:actions-dispatcher-runtime:2.0.0'
kapt 'com.github.rougsig:actions-dispatcher-processor:2.0.0'