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Add LiveData and ViewModels and implement detail screen with it
Migrate edit super hero screen Migrate main screen to view model WIP
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7 changes: 7 additions & 0 deletions
7
app/src/androidTest/java/com/karumi/jetpack/superheroes/data/singleValueLiveData.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| package com.karumi.jetpack.superheroes.data | ||
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| import androidx.lifecycle.LiveData | ||
| import androidx.lifecycle.MutableLiveData | ||
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| fun <T> singleValueLiveData(value: T): LiveData<T> = | ||
| MutableLiveData<T>().apply { postValue(value) } |
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37 changes: 37 additions & 0 deletions
37
app/src/main/java/com/karumi/jetpack/superheroes/common/ViewModelFactory.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,37 @@ | ||
| package com.karumi.jetpack.superheroes.common | ||
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| import android.app.Application | ||
| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.ViewModelProvider | ||
| import androidx.lifecycle.ViewModelProviders | ||
| import com.karumi.jetpack.superheroes.ui.view.BaseActivity | ||
| import org.kodein.di.DKodein | ||
| import org.kodein.di.Kodein | ||
| import org.kodein.di.KodeinAware | ||
| import org.kodein.di.direct | ||
| import org.kodein.di.erased.bind | ||
| import org.kodein.di.erased.instance | ||
| import org.kodein.di.erased.instanceOrNull | ||
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| class ViewModelFactory( | ||
| private val injector: DKodein, | ||
| private val application: Application | ||
| ) : ViewModelProvider.Factory { | ||
| @Suppress("UNCHECKED_CAST") | ||
| override fun <T : ViewModel> create(modelClass: Class<T>): T { | ||
| return injector.instanceOrNull<ViewModel>(tag = modelClass.simpleName) as T? | ||
| ?: modelClass.getConstructor(Application::class.java).newInstance(application) | ||
| } | ||
| } | ||
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| inline fun <reified VM : ViewModel, T> T.viewModel(): Lazy<VM> | ||
| where T : KodeinAware, | ||
| T : BaseActivity<*> { | ||
| return lazy { ViewModelProviders.of(this, direct.instance()).get(VM::class.java) } | ||
| } | ||
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| inline fun <reified T : ViewModel> Kodein.Builder.bindViewModel( | ||
| overrides: Boolean? = null | ||
| ): Kodein.Builder.TypeBinder<T> { | ||
| return bind<T>(T::class.java.simpleName, overrides) | ||
| } |
21 changes: 12 additions & 9 deletions
21
app/src/main/java/com/karumi/jetpack/superheroes/data/repository/LocalSuperHeroDataSource.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,30 +1,33 @@ | ||
| package com.karumi.jetpack.superheroes.data.repository | ||
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| import androidx.lifecycle.LiveData | ||
| import androidx.lifecycle.Transformations | ||
| import com.karumi.jetpack.superheroes.data.repository.room.SuperHeroDao | ||
| import com.karumi.jetpack.superheroes.data.repository.room.SuperHeroEntity | ||
| import com.karumi.jetpack.superheroes.domain.model.SuperHero | ||
| import java.util.concurrent.ExecutorService | ||
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| class LocalSuperHeroDataSource( | ||
| private val dao: SuperHeroDao | ||
| private val dao: SuperHeroDao, | ||
| private val executor: ExecutorService | ||
| ) { | ||
| fun getAllSuperHeroes(): List<SuperHero> = | ||
| dao.getAll() | ||
| .map { it.toSuperHero() } | ||
| fun getAllSuperHeroes(): LiveData<List<SuperHero>> = | ||
| Transformations.map(dao.getAll()) { it.toSuperHeroes() } | ||
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| fun get(id: String): SuperHero? = | ||
| dao.getById(id)?.toSuperHero() | ||
| fun get(id: String): LiveData<SuperHero?> = | ||
| Transformations.map(dao.getById(id)) { it?.toSuperHero() } | ||
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| fun saveAll(all: List<SuperHero>) { | ||
| fun saveAll(all: List<SuperHero>) = executor.execute { | ||
| dao.deleteAll() | ||
| dao.insertAll(all.map { it.toEntity() }) | ||
| } | ||
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| fun save(superHero: SuperHero): SuperHero { | ||
| dao.update(superHero.toEntity()) | ||
| executor.execute { dao.update(superHero.toEntity()) } | ||
| return superHero | ||
| } | ||
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| private fun List<SuperHeroEntity>.toSuperHeroes(): List<SuperHero> = map { it.toSuperHero() } | ||
| private fun SuperHeroEntity.toSuperHero(): SuperHero = superHero | ||
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| private fun SuperHero.toEntity(): SuperHeroEntity = SuperHeroEntity(this) | ||
| } |
40 changes: 26 additions & 14 deletions
40
...src/main/java/com/karumi/jetpack/superheroes/data/repository/RemoteSuperHeroDataSource.kt
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25 changes: 18 additions & 7 deletions
25
app/src/main/java/com/karumi/jetpack/superheroes/data/repository/SuperHeroRepository.kt
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5 changes: 2 additions & 3 deletions
5
app/src/main/java/com/karumi/jetpack/superheroes/domain/usecase/GetSuperHeroById.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,10 +1,9 @@ | ||
| package com.karumi.jetpack.superheroes.domain.usecase | ||
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| import androidx.annotation.WorkerThread | ||
| import androidx.lifecycle.LiveData | ||
| import com.karumi.jetpack.superheroes.data.repository.SuperHeroRepository | ||
| import com.karumi.jetpack.superheroes.domain.model.SuperHero | ||
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| class GetSuperHeroById(private val superHeroesRepository: SuperHeroRepository) { | ||
| @WorkerThread | ||
| operator fun invoke(id: String): SuperHero? = superHeroesRepository.get(id) | ||
| operator fun invoke(id: String): LiveData<SuperHero?> = superHeroesRepository.get(id) | ||
| } |
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