pokk

Intrduction

Keep a service running on background mode in iOS.

pokk

[TOC]

Introduction

There are very good five stdlib operates we can use.

1. let
2. run
3. apply
4. also

pokk

Introduction

For Pycharm IDE, we want to use redirect input file while running the code.

How to Use

1. You can make a file for a input data as like *.in.
2. Typing auto_redirect_input_file.py in top of code.
3. Click the "Edit Configuration".
4. Put the file name *.in in "Script parameters".

pokk

Introduction

New a fragment instance in Kotlin style.

pokk

artistAdapter = ArtistAdapter(this@fragment, R.layout.item_artist_type_1, artistRes) { holder, item, _ ->
    // !! The problem will happen here.
    // The ViewModel will be created again and again.
    holder.binding.avm = RecyclerViewSearchArtistChartViewModel(item)
}

pokk

artistAdapter = ArtistAdapter(this@ChartIndexFragment, R.layout.item_artist_type_1, artistRes) { holder, item, _ ->
    // If a ViewModel doesn't exist, I will create a ViewModel.
    if (null == holder.binding.avm)
        holder.binding.avm = RecyclerViewSearchArtistChartViewModel(item)
    // Otherwise, I just reset the data to the ViewModel.
    else
        holder.binding.avm?.setArtistItem(item)
}

pokk

class ActivityModule {
    @Provides
    @PerActivity
    fun provideNavigator(): Navigator = Navigator()

    @Provides
    @PerActivity
    fun provideMainPresenter(): MainContract.Presenter = MainPresenter()
}

pokk

@Singleton
@Component(modules = arrayOf(AppModule::class))
interface AppComponent {
    object Initializer {
        fun init(app: App): AppComponent = DaggerAppComponent.builder()
                .appModule(AppModule(app))
                .netModule(NetModule(app))
                .build()
    }

pokk

class App: Application() {
    companion object {
        lateinit private var context: Context

        @JvmStatic fun appComponent(): AppComponent = (context as App).appComponent
        // Provide the global application context.
        @JvmStatic fun getAppContext(): Context = context
    }

    // Before dagger 2.11

pokk

@Module
class AppModule {
    @Provides
    @Singleton
    fun provideApplication(app: App): Application = app

    @Provides
    @Singleton
    fun provideAppContext(app: App): Context = app.applicationContext
}